{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-15T22:16:52Z",
  "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-08KHI070CP",
    "type": "line",
    "country": "es",
    "name": "Construction work for tunnels, shafts and subways: Spain public contracts since 2024",
    "url": "https://assay-systems.com/register/es/line/construction-work-for-tunnels-shafts-and-subways/",
    "text": [
      "Since January 2024 the line carries 47 award notices from 13 buyers. 74 suppliers share it.",
      "15 in 2024. 20 in 2025. 12 in the first 9 months of 2026.",
      "45 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": "TECSA, EMPRESA CONSTRUCTORA, S.A.",
        "url": "https://assay-systems.com/register/es/tecsa-empresa-constructora-s-a/"
      },
      {
        "name": "FERROVIAL CONSTRUCCIÓN, S.A.",
        "url": "https://assay-systems.com/register/es/ferrovial-construccion-s-a/"
      },
      {
        "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": "VIAS Y CONSTRUCCIONES, S.A.",
        "url": "https://assay-systems.com/register/es/vias-y-construcciones-s-a/"
      },
      {
        "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": "COMSA, S.A.U.",
        "url": "https://assay-systems.com/register/es/comsa-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": "COPCISA SA",
        "url": "https://assay-systems.com/register/es/copcisa-sa/"
      },
      {
        "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 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": "ADIANTE INFRAESTRUCTURAS, S.A.-CONSTRUCCIONES MARIEZCURRENA, S.L.",
        "url": "https://assay-systems.com/register/es/adiante-infraestructuras-s-a-construcciones-mariezcurrena-s-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": "AXIL INGENIERIA Y SERVICIOS SL",
        "url": "https://assay-systems.com/register/es/axil-ingenieria-y-servicios-sl/"
      },
      {
        "name": "BYCAM SERVICIOS EDIFICIOS E INFRAESTRUCTURAS, S.A.",
        "url": "https://assay-systems.com/register/es/bycam-servicios-edificios-e-infraestructuras-s-a/"
      },
      {
        "name": "Construcciones Rubau, SA",
        "url": "https://assay-systems.com/register/es/construcciones-rubau-sa/"
      },
      {
        "name": "CONSTRUCCIONES SÁNCHEZ DOMÍNGUEZ-SANDO, S.A.U.",
        "url": "https://assay-systems.com/register/es/construcciones-sanchez-dominguez-sando-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": "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": "FCC CONSTRUCCIÓN, S.A.",
        "url": "https://assay-systems.com/register/es/fcc-construccion-s-a/"
      },
      {
        "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": "Grusamar Ingeniería y Consulting, SLU",
        "url": "https://assay-systems.com/register/es/grusamar-ingenieria-y-consulting-slu/"
      },
      {
        "name": "MOYUA-JAIZUBIA-GEOTUNEL P20025381",
        "url": "https://assay-systems.com/register/es/moyua-jaizubia-geotunel-p20025381/"
      },
      {
        "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": "ROVER INFRAESTRUCTURAS, S.A.",
        "url": "https://assay-systems.com/register/es/rover-infraestructuras-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": "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 AMENABAR CYCASA",
        "url": "https://assay-systems.com/register/es/ute-amenabar-cycasa/"
      },
      {
        "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 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 - 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.-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 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 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 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 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 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 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": "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/"
      }
    ],
    "assay_record": "ASY-ES-08KHI070CP",
    "cite_as": "Assay Systems, \"Construction work for tunnels, shafts and subways: Spain public contracts since 2024\", https://assay-systems.com/register/es/line/construction-work-for-tunnels-shafts-and-subways/"
  }
}