{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-16T10:14:45Z",
  "source": "Assay Systems register, https://assay-systems.com/register/",
  "access_notice": "On 15 November 2026, automated access to assay-systems.com closes. After that date, access is available only under a paid annual subscription contract. Contact: contact@assay-systems.com",
  "data": {
    "id": "ASY-ES-18A4XYQ195",
    "type": "line",
    "country": "es",
    "name": "Construction work for bridges and tunnels, shafts and subways: Spain public contracts since 2024",
    "url": "https://assay-systems.com/register/es/line/construction-work-for-bridges-and-tunnels-shafts-and-subways/",
    "text": [
      "Since January 2024 the line carries 82 award notices from 27 buyers. 225 suppliers share it.",
      "27 in 2024. 36 in 2025. 19 in the first 9 months of 2026.",
      "124 of them had no award notice in the register from November 2023 to 2024.",
      "Names every buyer behind the figures and, for each award notice, the supplier, the award date, the notice number and the value where one is disclosed, and the notices behind every figure.",
      "Share of the line held by each of its largest suppliers, by number of award notices, in the TED register for Spain."
    ],
    "records": [
      {
        "name": "all lines",
        "url": "https://assay-systems.com/register/es/"
      },
      {
        "name": "FERROVIAL CONSTRUCCIÓN, S.A.",
        "url": "https://assay-systems.com/register/es/ferrovial-construccion-s-a/"
      },
      {
        "name": "TECSA, EMPRESA CONSTRUCTORA, S.A.",
        "url": "https://assay-systems.com/register/es/tecsa-empresa-constructora-s-a/"
      },
      {
        "name": "VIAS Y CONSTRUCCIONES, S.A.",
        "url": "https://assay-systems.com/register/es/vias-y-construcciones-s-a/"
      },
      {
        "name": "COMSA, S.A.U.",
        "url": "https://assay-systems.com/register/es/comsa-s-a-u/"
      },
      {
        "name": "CONTRATAS Y VENTAS, S.A.",
        "url": "https://assay-systems.com/register/es/contratas-y-ventas-s-a/"
      },
      {
        "name": "INFRAKONSULT EUROPA, S.L.",
        "url": "https://assay-systems.com/register/es/infrakonsult-europa-s-l/"
      },
      {
        "name": "APPLUS NORCONTROL, S.L.U.",
        "url": "https://assay-systems.com/register/es/applus-norcontrol-s-l-u/"
      },
      {
        "name": "AYESA INGENIERÍA Y ARQQUITECTURA, S.A.U",
        "url": "https://assay-systems.com/register/es/ayesa-ingenieria-y-arqquitectura-s-a-u/"
      },
      {
        "name": "AZVI, S.A.U.",
        "url": "https://assay-systems.com/register/es/azvi-s-a-u/"
      },
      {
        "name": "EMPRESA DE TRANSFORMACIÓN AGRARIA, S.A., S.M.E., M.P",
        "url": "https://assay-systems.com/register/es/empresa-de-transformacion-agraria-s-a-s-m-e-m-p/"
      },
      {
        "name": "LANTANIA, S.A.",
        "url": "https://assay-systems.com/register/es/lantania-s-a/"
      },
      {
        "name": "SISTEMAS Y MONTAJES INDUSTRIALES, S.A.",
        "url": "https://assay-systems.com/register/es/sistemas-y-montajes-industriales-s-a/"
      },
      {
        "name": "SYNEOX RAIL, S.A.L.",
        "url": "https://assay-systems.com/register/es/syneox-rail-s-a-l/"
      },
      {
        "name": "AGRUPACIÓN GUINOVART OBRAS Y SERVICIOS HISPANIA, S.A.",
        "url": "https://assay-systems.com/register/es/agrupacion-guinovart-obras-y-servicios-hispania-s-a/"
      },
      {
        "name": "ALDESA CONSTRUCCIONES, S.A.",
        "url": "https://assay-systems.com/register/es/aldesa-construcciones-s-a/"
      },
      {
        "name": "CONSTRUCCIONES SÁNCHEZ DOMÍNGUEZ-SANDO, S.A.U.",
        "url": "https://assay-systems.com/register/es/construcciones-sanchez-dominguez-sando-s-a-u/"
      },
      {
        "name": "Contratas y Ventas SAU",
        "url": "https://assay-systems.com/register/es/contratas-y-ventas-sau/"
      },
      {
        "name": "COPCISA SA",
        "url": "https://assay-systems.com/register/es/copcisa-sa/"
      },
      {
        "name": "COPCISA, S.A.",
        "url": "https://assay-systems.com/register/es/copcisa-s-a/"
      },
      {
        "name": "FCC CONSTRUCCIÓN, S.A.",
        "url": "https://assay-systems.com/register/es/fcc-construccion-s-a/"
      },
      {
        "name": "PUENTES Y CALZADAS INFRAESTRUCTURAS, S.L.U.",
        "url": "https://assay-systems.com/register/es/puentes-y-calzadas-infraestructuras-s-l-u/"
      },
      {
        "name": "ROVER INFRAESTRUCTURAS, S.A.",
        "url": "https://assay-systems.com/register/es/rover-infraestructuras-s-a/"
      },
      {
        "name": "U.T.E. Construcciones Sánchez Domínguez Sando, S. A. (50 %) y Aldesa Construcciones, S. A.",
        "url": "https://assay-systems.com/register/es/u-t-e-construcciones-sanchez-dominguez-sando-s-a-50-y-aldesa-construcciones-s-a/"
      },
      {
        "name": "UTE ESTACIONES ARCOS Y SIGÜENZA",
        "url": "https://assay-systems.com/register/es/ute-estaciones-arcos-y-siguenza/"
      },
      {
        "name": "UTE FCC CONSTRUCCIÓN, S.A., EIFFAGE INFRESTRUCTURAS, S.A. Y CANTERAS ALMARGEN S.L. ABREVIADAMENTE “U.T.E. OBRA METRO MÁLAGA”",
        "url": "https://assay-systems.com/register/es/ute-fcc-construccion-s-a-eiffage-infrestructuras-s-a-y-canteras-almargen-s-l-abreviadamente-u-t-e-obra-metro-malaga/"
      },
      {
        "name": "UTE:FERROVIAL CONSTRUCCION, S,A/LURPELAN TUNNELLING, S.A",
        "url": "https://assay-systems.com/register/es/ute-ferrovial-construccion-s-a-lurpelan-tunnelling-s-a/"
      },
      {
        "name": "UTE PADECASA OBRAS Y SERVICIOS, S.A.-CYCASA CANTERAS Y CONSTRUCCIONES, S.A.",
        "url": "https://assay-systems.com/register/es/ute-padecasa-obras-y-servicios-s-a-cycasa-canteras-y-construcciones-s-a/"
      },
      {
        "name": "UTE PARACUELLOS-EPILA",
        "url": "https://assay-systems.com/register/es/ute-paracuellos-epila/"
      },
      {
        "name": "UTE TÚNEL GUADARRAMA",
        "url": "https://assay-systems.com/register/es/ute-tunel-guadarrama/"
      },
      {
        "name": "VIAS Y CONSTRUCCIONES SA",
        "url": "https://assay-systems.com/register/es/vias-y-construcciones-sa/"
      },
      {
        "name": "2025JKIR0013 - FERROVIAL CONSTRUCCIÓN, S.A. y JAIZUBIA OBRAS Y SERVICIOS, S.L.",
        "url": "https://assay-systems.com/register/es/2025jkir0013-ferrovial-construccion-s-a-y-jaizubia-obras-y-servicios-s-l/"
      },
      {
        "name": "ABALA INFRAESTRUCTURAS, S.L.",
        "url": "https://assay-systems.com/register/es/abala-infraestructuras-s-l/"
      },
      {
        "name": "ACSA OBRAS E INFRAESTRUCTURAS SAU",
        "url": "https://assay-systems.com/register/es/acsa-obras-e-infraestructuras-sau/"
      },
      {
        "name": "ACTIVIDADES DE TRASNPORTE Y SERVICIOS ALTIPLANO, S.L",
        "url": "https://assay-systems.com/register/es/actividades-de-trasnporte-y-servicios-altiplano-s-l/"
      },
      {
        "name": "ADIANTE INFRAESTRUCTURAS, S.A.-CONSTRUCCIONES MARIEZCURRENA, S.L.",
        "url": "https://assay-systems.com/register/es/adiante-infraestructuras-s-a-construcciones-mariezcurrena-s-l/"
      },
      {
        "name": "Alquiler Obras y Servicios Extremeños sl",
        "url": "https://assay-systems.com/register/es/alquiler-obras-y-servicios-extremenos-sl/"
      },
      {
        "name": "AMM OBRA CIVIL, CONSERVACIÓN Y CANALIZACIONES DEL LEVANTE, S.L.",
        "url": "https://assay-systems.com/register/es/amm-obra-civil-conservacion-y-canalizaciones-del-levante-s-l/"
      },
      {
        "name": "APIMOSA, S.L.",
        "url": "https://assay-systems.com/register/es/apimosa-s-l/"
      },
      {
        "name": "Api movilidad S.A.",
        "url": "https://assay-systems.com/register/es/api-movilidad-s-a/"
      },
      {
        "name": "ARGOTEK INSTALACIONES, S.L.U.",
        "url": "https://assay-systems.com/register/es/argotek-instalaciones-s-l-u/"
      },
      {
        "name": "ARIDOS Y EXCAVACIONES PLATERO MARTINEZ S.L.",
        "url": "https://assay-systems.com/register/es/aridos-y-excavaciones-platero-martinez-s-l/"
      },
      {
        "name": "ARNO INFRAESTRUCTURAS, S.L.U.",
        "url": "https://assay-systems.com/register/es/arno-infraestructuras-s-l-u/"
      },
      {
        "name": "ASCH INFRAESTRUCTURAS Y SERVICIOS, S.A.",
        "url": "https://assay-systems.com/register/es/asch-infraestructuras-y-servicios-s-a/"
      },
      {
        "name": "ASFALTOMEROS, S.A.",
        "url": "https://assay-systems.com/register/es/asfaltomeros-s-a/"
      },
      {
        "name": "Asfaltos y Construcciones Elsan, S.A.U.",
        "url": "https://assay-systems.com/register/es/asfaltos-y-construcciones-elsan-s-a-u/"
      },
      {
        "name": "ATFORTIS, S.L.",
        "url": "https://assay-systems.com/register/es/atfortis-s-l/"
      },
      {
        "name": "AXIL INGENIERIA Y SERVICIOS SL",
        "url": "https://assay-systems.com/register/es/axil-ingenieria-y-servicios-sl/"
      },
      {
        "name": "AZUL CONSTRUCCION REPAIR, S.A.",
        "url": "https://assay-systems.com/register/es/azul-construccion-repair-s-a/"
      },
      {
        "name": "beceite forestal s.l.",
        "url": "https://assay-systems.com/register/es/beceite-forestal-s-l/"
      },
      {
        "name": "BECSA, S.A.",
        "url": "https://assay-systems.com/register/es/becsa-s-a/"
      },
      {
        "name": "Binaria Compañía General de Construcciones, S.L.",
        "url": "https://assay-systems.com/register/es/binaria-compania-general-de-construcciones-s-l/"
      },
      {
        "name": "BIOMASAS EXMA 2023, S.L.",
        "url": "https://assay-systems.com/register/es/biomasas-exma-2023-s-l/"
      },
      {
        "name": "Bitum Asfaltos e Infraestructuras S.L.",
        "url": "https://assay-systems.com/register/es/bitum-asfaltos-e-infraestructuras-s-l/"
      },
      {
        "name": "BYCAM SERVICIOS EDIFICIOS E INFRAESTRUCTURAS, S.A.",
        "url": "https://assay-systems.com/register/es/bycam-servicios-edificios-e-infraestructuras-s-a/"
      },
      {
        "name": "CALAF TRENCHING, SL",
        "url": "https://assay-systems.com/register/es/calaf-trenching-sl/"
      },
      {
        "name": "CALALLARGA S.L.",
        "url": "https://assay-systems.com/register/es/calallarga-s-l/"
      },
      {
        "name": "CHM OBRAS E INFRAESTRUCTURAS SA",
        "url": "https://assay-systems.com/register/es/chm-obras-e-infraestructuras-sa/"
      },
      {
        "name": "CIVINED, SLU",
        "url": "https://assay-systems.com/register/es/civined-slu/"
      },
      {
        "name": "COBRA INSTALACIONES Y SERVICIOS, S.A.U.",
        "url": "https://assay-systems.com/register/es/cobra-instalaciones-y-servicios-s-a-u/"
      },
      {
        "name": "COMSA, S.A.",
        "url": "https://assay-systems.com/register/es/comsa-s-a/"
      },
      {
        "name": "CONEGOAL SL",
        "url": "https://assay-systems.com/register/es/conegoal-sl/"
      },
      {
        "name": "CONSTRUCCIONES GISMERO, S.A.U.",
        "url": "https://assay-systems.com/register/es/construcciones-gismero-s-a-u/"
      },
      {
        "name": "Construcciones Rubau, SA",
        "url": "https://assay-systems.com/register/es/construcciones-rubau-sa/"
      },
      {
        "name": "CONSTRUCCIONES URDECON, S.A.",
        "url": "https://assay-systems.com/register/es/construcciones-urdecon-s-a/"
      },
      {
        "name": "Construcciones y Desmontes Ribera Navarra, S.A.",
        "url": "https://assay-systems.com/register/es/construcciones-y-desmontes-ribera-navarra-s-a/"
      },
      {
        "name": "CONSTRUCCIONES Y OBRAS LLORENTE, S.A.U.",
        "url": "https://assay-systems.com/register/es/construcciones-y-obras-llorente-s-a-u/"
      },
      {
        "name": "Consultora de Riegos, S.A.",
        "url": "https://assay-systems.com/register/es/consultora-de-riegos-s-a/"
      },
      {
        "name": "CONTRATAS Y VENTAS, S.A.U.",
        "url": "https://assay-systems.com/register/es/contratas-y-ventas-s-a-u/"
      },
      {
        "name": "COPCISA, S.A. y VIALOBRA, S.L. UNION TEMPORAL DE EMPRESAS LEY 18/1982 DE 26 DE MAYO, abreviadamente UTE TUNEL LINEA 3",
        "url": "https://assay-systems.com/register/es/copcisa-s-a-y-vialobra-s-l-union-temporal-de-empresas-ley-18-1982-de-26-de-mayo-abreviadamente-ute-tunel-linea-3/"
      },
      {
        "name": "Copisa Constructora Pirenaica, SA",
        "url": "https://assay-systems.com/register/es/copisa-constructora-pirenaica-sa/"
      },
      {
        "name": "COX T&I, SLU",
        "url": "https://assay-systems.com/register/es/cox-t-i-slu/"
      },
      {
        "name": "Cox Water, S.L.U",
        "url": "https://assay-systems.com/register/es/cox-water-s-l-u/"
      },
      {
        "name": "CRISOL OBRAS Y SERVICIOS, S.L.",
        "url": "https://assay-systems.com/register/es/crisol-obras-y-servicios-s-l/"
      },
      {
        "name": "Cyes Infraestructuras, S.L.U.",
        "url": "https://assay-systems.com/register/es/cyes-infraestructuras-s-l-u/"
      },
      {
        "name": "DEMAIN OBRAS Y SERVICIOS, S.L.",
        "url": "https://assay-systems.com/register/es/demain-obras-y-servicios-s-l/"
      },
      {
        "name": "DRAGADOS S.A.",
        "url": "https://assay-systems.com/register/es/dragados-s-a/"
      },
      {
        "name": "DRAGADOS, S.A. Y ACCIONA CONSTRUCCIÓN, S.A., UNIÓN TEMPORAL DE EMPRESAS, abreviadamente UTE SOTERRAMIENTO A-5 LOTE 2",
        "url": "https://assay-systems.com/register/es/dragados-s-a-y-acciona-construccion-s-a-union-temporal-de-empresas-abreviadamente-ute-soterramiento-a-5-lote-2/"
      },
      {
        "name": "ECOASFALT, .S.A",
        "url": "https://assay-systems.com/register/es/ecoasfalt-s-a/"
      },
      {
        "name": "ECOCIVIL ELECTROMUR G.E., S.L.",
        "url": "https://assay-systems.com/register/es/ecocivil-electromur-g-e-s-l/"
      },
      {
        "name": "EDIFESA OBRAS Y PROYECTOS, S.A.",
        "url": "https://assay-systems.com/register/es/edifesa-obras-y-proyectos-s-a/"
      },
      {
        "name": "EDIFICACION LOGISTICA, INDUSTRIAL Y TERCIARIA, S.L.",
        "url": "https://assay-systems.com/register/es/edificacion-logistica-industrial-y-terciaria-s-l/"
      },
      {
        "name": "EIFFAGE INFRAESTRUCTURAS, S.A",
        "url": "https://assay-systems.com/register/es/eiffage-infraestructuras-s-a/"
      },
      {
        "name": "ELECNOR SERVICIOS Y PROYECTOS SAU",
        "url": "https://assay-systems.com/register/es/elecnor-servicios-y-proyectos-sau/"
      },
      {
        "name": "ELECTRONIC TRAFIC, S.A.",
        "url": "https://assay-systems.com/register/es/electronic-trafic-s-a/"
      },
      {
        "name": "ELECTROTECNIA MONRABAL SLU",
        "url": "https://assay-systems.com/register/es/electrotecnia-monrabal-slu/"
      },
      {
        "name": "ELECTROVAL LEVANTE, SL",
        "url": "https://assay-systems.com/register/es/electroval-levante-sl/"
      },
      {
        "name": "Elsamex Gestión de Infraestructuras, S.L.-Técnicas y Obras del NOroeste S.L.",
        "url": "https://assay-systems.com/register/es/elsamex-gestion-de-infraestructuras-s-l-tecnicas-y-obras-del-noroeste-s-l/"
      },
      {
        "name": "EMPRESA DE SERVICIOS CORDERO MAESTRE, S.L.-CYOPSA-SISOCIA, S.A.",
        "url": "https://assay-systems.com/register/es/empresa-de-servicios-cordero-maestre-s-l-cyopsa-sisocia-s-a/"
      },
      {
        "name": "ENEAS SERVICIOS INTEGRALES, S.A.",
        "url": "https://assay-systems.com/register/es/eneas-servicios-integrales-s-a/"
      },
      {
        "name": "ESTUDIOS, DIRECCION E INVESTIGACION DE FERMENTACIONES ESPECIALES S.A.",
        "url": "https://assay-systems.com/register/es/estudios-direccion-e-investigacion-de-fermentaciones-especiales-s-a/"
      },
      {
        "name": "ETRALUX, S.A.",
        "url": "https://assay-systems.com/register/es/etralux-s-a/"
      },
      {
        "name": "EULEN, S.A.",
        "url": "https://assay-systems.com/register/es/eulen-s-a/"
      },
      {
        "name": "eurocatalana obres i serveis, S.L.U.",
        "url": "https://assay-systems.com/register/es/eurocatalana-obres-i-serveis-s-l-u/"
      },
      {
        "name": "EXCARBI, S.L.",
        "url": "https://assay-systems.com/register/es/excarbi-s-l/"
      },
      {
        "name": "EXFAMEX, S.L.",
        "url": "https://assay-systems.com/register/es/exfamex-s-l/"
      },
      {
        "name": "FCC CONSTRUCCION S.A. Y FERROVIAL CONSTRUCCION S.A., UNIÓN TEMPORAL DE EMPRESAS, abreviadamente UTE PASEO VERDE DEL SUROESTE LOTE 1",
        "url": "https://assay-systems.com/register/es/fcc-construccion-s-a-y-ferrovial-construccion-s-a-union-temporal-de-empresas-abreviadamente-ute-paseo-verde-del-suroeste-lote-1/"
      },
      {
        "name": "FCC - NORTUNEL - CYCASA",
        "url": "https://assay-systems.com/register/es/fcc-nortunel-cycasa/"
      },
      {
        "name": "FERROVIAL CONSTRUCCION, S.A. y CONSTRUCCIONES INTXAUSTI, S.A.",
        "url": "https://assay-systems.com/register/es/ferrovial-construccion-s-a-y-construcciones-intxausti-s-a/"
      },
      {
        "name": "FULTON S.A.",
        "url": "https://assay-systems.com/register/es/fulton-s-a/"
      },
      {
        "name": "GEOCIVIL, S.A.",
        "url": "https://assay-systems.com/register/es/geocivil-s-a/"
      },
      {
        "name": "GOSADEX SL",
        "url": "https://assay-systems.com/register/es/gosadex-sl/"
      },
      {
        "name": "GRUPO BERTOLIN, SAU",
        "url": "https://assay-systems.com/register/es/grupo-bertolin-sau/"
      },
      {
        "name": "Grusamar Ingeniería y Consulting, SLU",
        "url": "https://assay-systems.com/register/es/grusamar-ingenieria-y-consulting-slu/"
      },
      {
        "name": "GUEROLA ÁRIDOS Y HORMIGONES S.L",
        "url": "https://assay-systems.com/register/es/guerola-aridos-y-hormigones-s-l/"
      },
      {
        "name": "GUEROLA INFRAESTRUCTURAS S.L.U.",
        "url": "https://assay-systems.com/register/es/guerola-infraestructuras-s-l-u/"
      },
      {
        "name": "HERMANOS BAENA FORESTAL S.L.",
        "url": "https://assay-systems.com/register/es/hermanos-baena-forestal-s-l/"
      },
      {
        "name": "IBERSOL OBRAS Y SERVICIOS SL",
        "url": "https://assay-systems.com/register/es/ibersol-obras-y-servicios-sl/"
      },
      {
        "name": "IMANOX LEVANTE, S.L.",
        "url": "https://assay-systems.com/register/es/imanox-levante-s-l/"
      },
      {
        "name": "IMESAPI SA",
        "url": "https://assay-systems.com/register/es/imesapi-sa/"
      },
      {
        "name": "IMESAPI, S.A.",
        "url": "https://assay-systems.com/register/es/imesapi-s-a/"
      },
      {
        "name": "INACCES GEOTECNICA VERTICAL, S.L.",
        "url": "https://assay-systems.com/register/es/inacces-geotecnica-vertical-s-l/"
      },
      {
        "name": "INDICIA, S.L.",
        "url": "https://assay-systems.com/register/es/indicia-s-l/"
      },
      {
        "name": "INFRAESTRUCTURAS Y FERROCARRILES S.L.",
        "url": "https://assay-systems.com/register/es/infraestructuras-y-ferrocarriles-s-l/"
      },
      {
        "name": "INFRAESTRUCTURAS Y SERVICIOS SERVITRIA, S.A.",
        "url": "https://assay-systems.com/register/es/infraestructuras-y-servicios-servitria-s-a/"
      },
      {
        "name": "INGENIERIA Y DISEÑOS TECNICOS, S.A.U.",
        "url": "https://assay-systems.com/register/es/ingenieria-y-disenos-tecnicos-s-a-u/"
      },
      {
        "name": "Ingeniería y Técnicas Globales de Resolución Ambiental SLU",
        "url": "https://assay-systems.com/register/es/ingenieria-y-tecnicas-globales-de-resolucion-ambiental-slu/"
      },
      {
        "name": "Innovaciones Técnicas y Recursos Constructivos, S.A.",
        "url": "https://assay-systems.com/register/es/innovaciones-tecnicas-y-recursos-constructivos-s-a/"
      },
      {
        "name": "JOGOSA OBRAS Y SERVICIOS, S.L.U.",
        "url": "https://assay-systems.com/register/es/jogosa-obras-y-servicios-s-l-u/"
      },
      {
        "name": "JOSÉ ANTONIO ROMERO POLO, S.A.U.",
        "url": "https://assay-systems.com/register/es/jose-antonio-romero-polo-s-a-u/"
      },
      {
        "name": "jose manuel muelas sl",
        "url": "https://assay-systems.com/register/es/jose-manuel-muelas-sl/"
      },
      {
        "name": "KALPAE IBERICA S.L.",
        "url": "https://assay-systems.com/register/es/kalpae-iberica-s-l/"
      },
      {
        "name": "MARCO INFRAESTRUCTURAS Y MEDIO AMBIENTE SA",
        "url": "https://assay-systems.com/register/es/marco-infraestructuras-y-medio-ambiente-sa/"
      },
      {
        "name": "MARCO INFRAESTRUCTURAS Y MEDIO AMBIENTE, S.A.",
        "url": "https://assay-systems.com/register/es/marco-infraestructuras-y-medio-ambiente-s-a/"
      },
      {
        "name": "MARCO INFRAESTRUCTURAS Y MEDIO AMBIENTE, S.A. - CONSULTORA DE RIEGOS, S.A. - ELECTROMONTAJES ACOEMAN, S.L.",
        "url": "https://assay-systems.com/register/es/marco-infraestructuras-y-medio-ambiente-s-a-consultora-de-riegos-s-a-electromontajes-acoeman-s-l/"
      },
      {
        "name": "MEDITERRÁNEO DE OBRAS Y ASFALTOS S.A.",
        "url": "https://assay-systems.com/register/es/mediterraneo-de-obras-y-asfaltos-s-a/"
      },
      {
        "name": "M. I J. GRUAS, S.A.",
        "url": "https://assay-systems.com/register/es/m-i-j-gruas-s-a/"
      },
      {
        "name": "MOYUA-JAIZUBIA-GEOTUNEL P20025381",
        "url": "https://assay-systems.com/register/es/moyua-jaizubia-geotunel-p20025381/"
      },
      {
        "name": "OBRASCON HUARTE LAIN SA",
        "url": "https://assay-systems.com/register/es/obrascon-huarte-lain-sa/"
      },
      {
        "name": "OBRAS Y SERVICIOS LOS JUSTOS S.L.",
        "url": "https://assay-systems.com/register/es/obras-y-servicios-los-justos-s-l/"
      },
      {
        "name": "OCIDE CONSTRUCCION S.A.",
        "url": "https://assay-systems.com/register/es/ocide-construccion-s-a/"
      },
      {
        "name": "ORTHEM SERVICIOS Y ACTUACIONES AMBIENTALES, SAU",
        "url": "https://assay-systems.com/register/es/orthem-servicios-y-actuaciones-ambientales-sau/"
      },
      {
        "name": "ORTIZ CONSTRUCCIONES Y PROYECTOS SA",
        "url": "https://assay-systems.com/register/es/ortiz-construcciones-y-proyectos-sa/"
      },
      {
        "name": "P20026275 - FERROVIAL CONSTRUCCION, S.A., CONSTRUCCIONES AMENABAR, S.A. y CONSTRUCCIONES MARIEZCURRENA, S.L.",
        "url": "https://assay-systems.com/register/es/p20026275-ferrovial-construccion-s-a-construcciones-amenabar-s-a-y-construcciones-mariezcurrena-s-l/"
      },
      {
        "name": "P20027458 - FERROVIAL CONSTRUCCION, S.A., CONSTRUCCIONES AMENABAR, S.A. y CONSTRUCCIONES MARIEZCURRENA, S.L.",
        "url": "https://assay-systems.com/register/es/p20027458-ferrovial-construccion-s-a-construcciones-amenabar-s-a-y-construcciones-mariezcurrena-s-l/"
      },
      {
        "name": "PADECASA OBRAS Y SERVICIOS, S.A.",
        "url": "https://assay-systems.com/register/es/padecasa-obras-y-servicios-s-a/"
      },
      {
        "name": "PAVASAL EMPRESA CONSTRUCTORA, S.A.U.",
        "url": "https://assay-systems.com/register/es/pavasal-empresa-constructora-s-a-u/"
      },
      {
        "name": "PAVENER SERVICIOS ENERGÉTICOS S.L.",
        "url": "https://assay-systems.com/register/es/pavener-servicios-energeticos-s-l/"
      },
      {
        "name": "PROBISA VIAS Y OBRAS, S.L.U.",
        "url": "https://assay-systems.com/register/es/probisa-vias-y-obras-s-l-u/"
      },
      {
        "name": "PROMOCIONES ALTOGRA SL",
        "url": "https://assay-systems.com/register/es/promociones-altogra-sl/"
      },
      {
        "name": "PROYECTOS Y SUBCONTRATAS, S.L.",
        "url": "https://assay-systems.com/register/es/proyectos-y-subcontratas-s-l/"
      },
      {
        "name": "PROYME INGENIERIA Y CONSTRUCCION S.L.",
        "url": "https://assay-systems.com/register/es/proyme-ingenieria-y-construccion-s-l/"
      },
      {
        "name": "RAYSO SERVICIOS 2014 S.L.",
        "url": "https://assay-systems.com/register/es/rayso-servicios-2014-s-l/"
      },
      {
        "name": "RETINEO INGENIERÍA, S.L.",
        "url": "https://assay-systems.com/register/es/retineo-ingenieria-s-l/"
      },
      {
        "name": "ROGASA CONSTRUCCIONES Y CONTRATAS, S.A.U.",
        "url": "https://assay-systems.com/register/es/rogasa-construcciones-y-contratas-s-a-u/"
      },
      {
        "name": "S.A. AGRICULTORES DE LA VEGA DE VALENCIA",
        "url": "https://assay-systems.com/register/es/s-a-agricultores-de-la-vega-de-valencia/"
      },
      {
        "name": "SACYR CONSERVACIÓN, S.A.",
        "url": "https://assay-systems.com/register/es/sacyr-conservacion-s-a/"
      },
      {
        "name": "SACYR CONSTRUCCIÓN, S.A.",
        "url": "https://assay-systems.com/register/es/sacyr-construccion-s-a/"
      },
      {
        "name": "SACYR CONSTRUCCION, S.A. - CAVOSA OBRAS Y PROYECTOS, S.A.",
        "url": "https://assay-systems.com/register/es/sacyr-construccion-s-a-cavosa-obras-y-proyectos-s-a/"
      },
      {
        "name": "SERANCO, S.A.",
        "url": "https://assay-systems.com/register/es/seranco-s-a/"
      },
      {
        "name": "SERANCO S.A.U.",
        "url": "https://assay-systems.com/register/es/seranco-s-a-u/"
      },
      {
        "name": "SERVEIS INTEGRALS DE MANTENIMENT RUBATEC, SA",
        "url": "https://assay-systems.com/register/es/serveis-integrals-de-manteniment-rubatec-sa/"
      },
      {
        "name": "SERVEO SERVICIOS, S.A.U.",
        "url": "https://assay-systems.com/register/es/serveo-servicios-s-a-u/"
      },
      {
        "name": "SOCIEDAD ANONIMA TRABAJOS Y OBRAS Unipersonal",
        "url": "https://assay-systems.com/register/es/sociedad-anonima-trabajos-y-obras-unipersonal/"
      },
      {
        "name": "TECNOLOGIA DE FIRMES, S.A.",
        "url": "https://assay-systems.com/register/es/tecnologia-de-firmes-s-a/"
      },
      {
        "name": "TECNOLOGIA DE LA CONSTRUCCION Y OBRAS PUBLICAS, S.A.",
        "url": "https://assay-systems.com/register/es/tecnologia-de-la-construccion-y-obras-publicas-s-a/"
      },
      {
        "name": "TOLEDANO EDIFICACIONES Y OBRAS PUBLICAS SL",
        "url": "https://assay-systems.com/register/es/toledano-edificaciones-y-obras-publicas-sl/"
      },
      {
        "name": "TORRESCAMARA Y CIA. DE OBRAS, S.A.",
        "url": "https://assay-systems.com/register/es/torrescamara-y-cia-de-obras-s-a/"
      },
      {
        "name": "TRABAJOS ESPECIALES MONTEFAN, S.L.",
        "url": "https://assay-systems.com/register/es/trabajos-especiales-montefan-s-l/"
      },
      {
        "name": "TRANSPORTES QUIQUE, S.L.",
        "url": "https://assay-systems.com/register/es/transportes-quique-s-l/"
      },
      {
        "name": "UC10, S.A.U.",
        "url": "https://assay-systems.com/register/es/uc10-s-a-u/"
      },
      {
        "name": "ULLASTRES S.A.",
        "url": "https://assay-systems.com/register/es/ullastres-s-a/"
      },
      {
        "name": "URBAMED PROJECTS, S.L.",
        "url": "https://assay-systems.com/register/es/urbamed-projects-s-l/"
      },
      {
        "name": "URCOTEX INMOBILIARIA, S.L.U.",
        "url": "https://assay-systems.com/register/es/urcotex-inmobiliaria-s-l-u/"
      },
      {
        "name": "UTE:ACCIONA , S.A/GAIMAZ INFRAESTRUCTURA Y SERVICIOS, S.A/CONSTRUCCIONES INTXAUSTI, S.A",
        "url": "https://assay-systems.com/register/es/ute-acciona-s-a-gaimaz-infraestructura-y-servicios-s-a-construcciones-intxausti-s-a/"
      },
      {
        "name": "UTE ACEINSA MOVILIDAD, S.A. - ETRALUX, S.A. - URBALUX, S.A",
        "url": "https://assay-systems.com/register/es/ute-aceinsa-movilidad-s-a-etralux-s-a-urbalux-s-a/"
      },
      {
        "name": "UTE ADIF PASOS A NIVEL SEVILLA (constituida por HORMIGONES ASFALTICOS ANDALUCES S.A. - INPRONA 2010 - INSTALACIONES Y CONSTRUCCIONES ALMERIA S.L. (INCOAL))",
        "url": "https://assay-systems.com/register/es/ute-adif-pasos-a-nivel-sevilla-constituida-por-hormigones-asfalticos-andaluces-s-a-inprona-2010-instalaciones-y-construcciones-almeria-s-l-incoal/"
      },
      {
        "name": "UTE ALERO - GC",
        "url": "https://assay-systems.com/register/es/ute-alero-gc/"
      },
      {
        "name": "UTE AMENABAR CYCASA",
        "url": "https://assay-systems.com/register/es/ute-amenabar-cycasa/"
      },
      {
        "name": "UTE APIMOSA, S.L. - IMPRESA LUIGI NOTARI SPA, SUCURSAL EN ESPAÑA",
        "url": "https://assay-systems.com/register/es/ute-apimosa-s-l-impresa-luigi-notari-spa-sucursal-en-espana/"
      },
      {
        "name": "UTE ARCOS 21 ASCH BERMEOSOLO",
        "url": "https://assay-systems.com/register/es/ute-arcos-21-asch-bermeosolo/"
      },
      {
        "name": "UTE ASCH-ARCOS21-OSSA",
        "url": "https://assay-systems.com/register/es/ute-asch-arcos21-ossa/"
      },
      {
        "name": "UTE ASCH INFRAESTRUCTURAS Y SERVICIOS, S.A. - MONTAJES ELECTRICOS VINAELECTRIC S.L.",
        "url": "https://assay-systems.com/register/es/ute-asch-infraestructuras-y-servicios-s-a-montajes-electricos-vinaelectric-s-l/"
      },
      {
        "name": "UTE AUTOPISTA FERROVIARIA",
        "url": "https://assay-systems.com/register/es/ute-autopista-ferroviaria/"
      },
      {
        "name": "UTE BYCAM + A.URIA + ACCIONA",
        "url": "https://assay-systems.com/register/es/ute-bycam-a-uria-acciona/"
      },
      {
        "name": "UTE BYCAM + A.URIA + JAIZUBIA BURTXAKO RIO CASTAÑOS",
        "url": "https://assay-systems.com/register/es/ute-bycam-a-uria-jaizubia-burtxako-rio-castanos/"
      },
      {
        "name": "UTE:BYCAM S.A/FCC CONSTRUCCION, S.A",
        "url": "https://assay-systems.com/register/es/ute-bycam-s-a-fcc-construccion-s-a/"
      },
      {
        "name": "UTE CAMPEZO-ALTUNA-ATESVI",
        "url": "https://assay-systems.com/register/es/ute-campezo-altuna-atesvi/"
      },
      {
        "name": "UTE CAMPEZO - AZVI - IZA",
        "url": "https://assay-systems.com/register/es/ute-campezo-azvi-iza/"
      },
      {
        "name": "UTE COMSA - AZVI - IZA -CAMPEZO",
        "url": "https://assay-systems.com/register/es/ute-comsa-azvi-iza-campezo/"
      },
      {
        "name": "UTE:CONSTRUCCIONES ADOLFO SOBRINO, S.A/OBRASCON HUARTE LAIN, S.A",
        "url": "https://assay-systems.com/register/es/ute-construcciones-adolfo-sobrino-s-a-obrascon-huarte-lain-s-a/"
      },
      {
        "name": "UTE CYCASA-MARIEZCURRENA-FHIMASA",
        "url": "https://assay-systems.com/register/es/ute-cycasa-mariezcurrena-fhimasa/"
      },
      {
        "name": "UTE:DRAGADOS, S.A/OBRAS SUBTERRANEAS, S.A",
        "url": "https://assay-systems.com/register/es/ute-dragados-s-a-obras-subterraneas-s-a/"
      },
      {
        "name": "UTE FCC CONSTRUCCIÓN, S.A., PACSA SERVICIOS URBANOS Y DEL MEDIO NATURAL, S.L. y OBRAS Y SERVICIOS TAGA, S.A., abreviadamente UTE PUENTE VENTAS",
        "url": "https://assay-systems.com/register/es/ute-fcc-construccion-s-a-pacsa-servicios-urbanos-y-del-medio-natural-s-l-y-obras-y-servicios-taga-s-a-abreviadamente-ute-puente-ventas/"
      },
      {
        "name": "UTE, FCC CONSTRUCCIÓN, S.A.-SACYR CONSTRUCCIÓN, S.A.-BECSA, S.A.",
        "url": "https://assay-systems.com/register/es/ute-fcc-construccion-s-a-sacyr-construccion-s-a-becsa-s-a/"
      },
      {
        "name": "UTE FERROVIAL CONSTRUCCIÓN, S.A., GESTIÓN Y EJECUCIÓN DE OBRA CIVIL, S.A.U., y LICUAS, S.A., abreviadamente SOTERRAMIENTO CASTELLANA NORTE-U.T.E.",
        "url": "https://assay-systems.com/register/es/ute-ferrovial-construccion-s-a-gestion-y-ejecucion-de-obra-civil-s-a-u-y-licuas-s-a-abreviadamente-soterramiento-castellana-norte-u-t-e/"
      },
      {
        "name": "UTE FERROVIAL ENERGÍA, S.A.U. - FCC INDUSTRIAL E INFRAESTRUCTURASS ENERGÉTICAS S.A.U.",
        "url": "https://assay-systems.com/register/es/ute-ferrovial-energia-s-a-u-fcc-industrial-e-infraestructurass-energeticas-s-a-u/"
      },
      {
        "name": "UTE GALIBO LÍNEA 610",
        "url": "https://assay-systems.com/register/es/ute-galibo-linea-610/"
      },
      {
        "name": "UTE GÁLIBOS (constituida por TORRESCAMARA Y CIA DE OBRAS S.A. (70%) - MANTENIMIENTO DE ESTACIONES S.L. (30%))",
        "url": "https://assay-systems.com/register/es/ute-galibos-constituida-por-torrescamara-y-cia-de-obras-s-a-70-mantenimiento-de-estaciones-s-l-30/"
      },
      {
        "name": "UTE INFRAESTRUCTURAS DE MOVILIDAD LOTE 2",
        "url": "https://assay-systems.com/register/es/ute-movilidad-lote-1/"
      },
      {
        "name": "UTE JADRAQUE",
        "url": "https://assay-systems.com/register/es/ute-jadraque/"
      },
      {
        "name": "U.T.E. L3 METRO DE SEVILLA SUBTRAMO III",
        "url": "https://assay-systems.com/register/es/u-t-e-l3-metro-de-sevilla-subtramo-iii/"
      },
      {
        "name": "UTE:LANTANIA, S.A.U/AZACETA, S.A/GEOTUNEL, S-Ñ",
        "url": "https://assay-systems.com/register/es/ute-lantania-s-a-u-azaceta-s-a-geotunel-s-n/"
      },
      {
        "name": "UTE LICUAS, S.A. y AZVI, S.A.U., abreviadamente UTE MADRID CENTRO II",
        "url": "https://assay-systems.com/register/es/ute-licuas-s-a-y-azvi-s-a-u-abreviadamente-ute-madrid-centro-ii/"
      },
      {
        "name": "UTE LÍNEA 600",
        "url": "https://assay-systems.com/register/es/ute-linea-600/"
      },
      {
        "name": "UTE MOYUA-FREYSSINET 2025JKIR0013",
        "url": "https://assay-systems.com/register/es/ute-moyua-freyssinet-2025jkir0013/"
      },
      {
        "name": "UTE OBRASCON HUARTE LAIN SA - GEOCIVIL,S.A.",
        "url": "https://assay-systems.com/register/es/ute-obrascon-huarte-lain-sa-geocivil-s-a/"
      },
      {
        "name": "UTE ORTIZ CONSTRUCCIONES Y PROYECTOS, S.A. y GESTIÓN Y EJECUCIÓN DE OBRA CIVIL, S.A.U., abreviadamente UTE INFRAESTRUCTURAS LOTE 4",
        "url": "https://assay-systems.com/register/es/ute-ortiz-construcciones-y-proyectos-s-a-y-gestion-y-ejecucion-de-obra-civil-s-a-u-abreviadamente-ute-infraestructuras-lote-4/"
      },
      {
        "name": "UTE PACSA SERVICIOS URBANOS Y DEL MEDIO NATURAL, S.L. y OBRAS Y SERVICIOS TAGA, S.A., abreviadamente U.T.E. INFRAESTRUCTURAS L2",
        "url": "https://assay-systems.com/register/es/ute-pacsa-servicios-urbanos-y-del-medio-natural-s-l-y-obras-y-servicios-taga-s-a-abreviadamente-u-t-e-infraestructuras-l2/"
      },
      {
        "name": "UTE PASO INFERIOR FLAÇA (constituida por VIALS I MEDI AMBIENT, S.A. y MARCO INFRAESTRUCTURAS Y MEDIO AMBIENTE, S.A.)).",
        "url": "https://assay-systems.com/register/es/ute-paso-inferior-flaca-constituida-por-vials-i-medi-ambient-s-a-y-marco-infraestructuras-y-medio-ambiente-s-a/"
      },
      {
        "name": "UTE REFUERZOS CORREDOR MEDITERRÁNEO",
        "url": "https://assay-systems.com/register/es/ute-refuerzos-corredor-mediterraneo/"
      },
      {
        "name": "UTE ROVER INFRAESTRUCTURAS, S.A. y COTODISA OBRAS Y SERVICIOS, S.A., abreviadamente INFRAESTRUCTURAS MADRID LOTE 5",
        "url": "https://assay-systems.com/register/es/ute-rover-infraestructuras-s-a-y-cotodisa-obras-y-servicios-s-a-abreviadamente-infraestructuras-madrid-lote-5/"
      },
      {
        "name": "UTE RUBÍ",
        "url": "https://assay-systems.com/register/es/ute-rubi/"
      },
      {
        "name": "UTE SANTA MARIA-ZARAGOZA",
        "url": "https://assay-systems.com/register/es/ute-tuneles-teruel-zaragoza-constituida-por-contratas-vilor-s-l-60-viuda-de-sainz-s-l-20-lurpelan-tunnelling-s-a-20/"
      },
      {
        "name": "UTE SERANCO, S.A.U. - INGENIERÍA OBRAS Y TECNOLOGÍA EUROPEA, S.L. - PRODESUR CONSTRUCCIÓN Y PROYECTOS, S.L., abreviadamente UTE AM URBANIZACIÓN LOTE 3",
        "url": "https://assay-systems.com/register/es/ute-seranco-s-a-u-ingenieria-obras-y-tecnologia-europea-s-l-prodesur-construccion-y-proyectos-s-l-abreviadamente-ute-am-urbanizacion-lote-3/"
      },
      {
        "name": "UTE SOBRINO-AYU-ANSAREO",
        "url": "https://assay-systems.com/register/es/ute-sobrino-ayu-ansareo/"
      },
      {
        "name": "UTE TECSA-COMSA",
        "url": "https://assay-systems.com/register/es/ute-tecsa-comsa/"
      },
      {
        "name": "UTE VAINSA - SOLUCIONES TECNICAS",
        "url": "https://assay-systems.com/register/es/ute-vainsa-soluciones-tecnicas/"
      },
      {
        "name": "UTE VIADUCTO MARINA",
        "url": "https://assay-systems.com/register/es/ute-viaducto-marina/"
      },
      {
        "name": "UTE VIALTERRA INFRAESTRUCTURAS, S.A. - VILOR INFRAESTRUCTURAS, S.L.",
        "url": "https://assay-systems.com/register/es/ute-vialterra-infraestructuras-s-a-vilor-infraestructuras-s-l/"
      },
      {
        "name": "UTE VIUDA DE SAINZ - GAIMAZ",
        "url": "https://assay-systems.com/register/es/ute-viuda-de-sainz-gaimaz/"
      },
      {
        "name": "UTE VIUDA DE SAINZ - LURPELAN - COPASA",
        "url": "https://assay-systems.com/register/es/ute-viuda-de-sainz-lurpelan-copasa/"
      },
      {
        "name": "UTE VIUDA - LURPELAN - COPASA",
        "url": "https://assay-systems.com/register/es/ute-viuda-lurpelan-copasa/"
      },
      {
        "name": "UTE ZUBIEDER-MARIEZCURRENA",
        "url": "https://assay-systems.com/register/es/ute-zubieder-mariezcurrena/"
      },
      {
        "name": "VARESER 96, S.L.",
        "url": "https://assay-systems.com/register/es/vareser-96-s-l/"
      },
      {
        "name": "VIALES Y OBRAS PÚBLICAS, S.A.",
        "url": "https://assay-systems.com/register/es/viales-y-obras-publicas-s-a/"
      },
      {
        "name": "VIAS Y CONSTRUCCIONES, S.A. y VARESER 96, S.L., UNION TEMPORAL DE EMPRESAS LEY 18/1982, abreviadamente UTE TUNEL ALAMEDA SERRERIA",
        "url": "https://assay-systems.com/register/es/vias-y-construcciones-s-a-y-vareser-96-s-l-union-temporal-de-empresas-ley-18-1982-abreviadamente-ute-tunel-alameda-serreria/"
      },
      {
        "name": "VIDAL FERRERO, S.L.",
        "url": "https://assay-systems.com/register/es/vidal-ferrero-s-l/"
      },
      {
        "name": "VILOR INFRAESTRUCTURAS, S.L.",
        "url": "https://assay-systems.com/register/es/vilor-infraestructuras-s-l/"
      }
    ],
    "assay_record": "ASY-ES-18A4XYQ195",
    "cite_as": "Assay Systems, \"Construction work for bridges and tunnels, shafts and subways: Spain public contracts since 2024\", https://assay-systems.com/register/es/line/construction-work-for-bridges-and-tunnels-shafts-and-subways/"
  }
}