{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-16T15:58:37Z",
  "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-0QYK46J1PU",
    "type": "line",
    "country": "es",
    "name": "Construction work for buildings relating to railway transport: Spain public contracts since 2024",
    "url": "https://assay-systems.com/register/es/line/construction-work-for-buildings-relating-to-railway-transport/",
    "text": [
      "Since January 2024 the line carries 23 award notices from 6 buyers. 188 suppliers share it.",
      "11 in 2024. 11 in 2025. 1 in the first 9 months of 2026.",
      "87 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": "COMSA SAU",
        "url": "https://assay-systems.com/register/es/comsa-sau/"
      },
      {
        "name": "CONSTRUCCIONES ADOLFO SOBRINO, S.A.",
        "url": "https://assay-systems.com/register/es/construcciones-adolfo-sobrino-s-a/"
      },
      {
        "name": "COPCISA, S.A.",
        "url": "https://assay-systems.com/register/es/copcisa-s-a/"
      },
      {
        "name": "DRACE GEOCISA, S.A.",
        "url": "https://assay-systems.com/register/es/drace-geocisa-s-a/"
      },
      {
        "name": "FERROVIAL CONSTRUCCIÓN, S.A.",
        "url": "https://assay-systems.com/register/es/ferrovial-construccion-s-a/"
      },
      {
        "name": "Lantania, S.L.U.",
        "url": "https://assay-systems.com/register/es/lantania-s-l-u/"
      },
      {
        "name": "ABALA INFRAESTRUCTURAS, S.L.",
        "url": "https://assay-systems.com/register/es/abala-infraestructuras-s-l/"
      },
      {
        "name": "ACCIONA CONSTRUCCIÓN, S.A.",
        "url": "https://assay-systems.com/register/es/acciona-construccion-s-a/"
      },
      {
        "name": "Acciona Esco, S.L.",
        "url": "https://assay-systems.com/register/es/acciona-esco-s-l/"
      },
      {
        "name": "ACEINSA LEVANTE, S.A.",
        "url": "https://assay-systems.com/register/es/aceinsa-levante-s-a/"
      },
      {
        "name": "ACEINSA MOVILIDAD, S.A.",
        "url": "https://assay-systems.com/register/es/aceinsa-movilidad-s-a/"
      },
      {
        "name": "ACEINSA SALAMANCA S.A.",
        "url": "https://assay-systems.com/register/es/aceinsa-salamanca-s-a/"
      },
      {
        "name": "ACSA OBRAS E INFRAESTRUCTURAS SAU",
        "url": "https://assay-systems.com/register/es/acsa-obras-e-infraestructuras-sau/"
      },
      {
        "name": "ACTIVIDADES DE INFRAESTRUCTURAS PÚBLICA Y CONSERVACIÓN, S.L.",
        "url": "https://assay-systems.com/register/es/actividades-de-infraestructuras-publica-y-conservacion-s-l/"
      },
      {
        "name": "ADDA OPS SA",
        "url": "https://assay-systems.com/register/es/adda-ops-sa/"
      },
      {
        "name": "ADIANTE INFRAESTRUCTURAS, S.A.-LANTANIA, S.A.U.",
        "url": "https://assay-systems.com/register/es/adiante-infraestructuras-s-a-lantania-s-a-u/"
      },
      {
        "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": "AGUA RESIDUOS Y MEDIO AMBIENTE, S.A.-CONSTRUCCIONES RUBAU, S.A.",
        "url": "https://assay-systems.com/register/es/agua-residuos-y-medio-ambiente-s-a-construcciones-rubau-s-a/"
      },
      {
        "name": "Alcudia Servicios y Obras, S.L.",
        "url": "https://assay-systems.com/register/es/alcudia-servicios-y-obras-s-l/"
      },
      {
        "name": "ALDESA CONSTRUCCIONES, S.A.",
        "url": "https://assay-systems.com/register/es/aldesa-construcciones-s-a/"
      },
      {
        "name": "ALDESA CONSTRUCCIONES, S.A.- AVINTIA PROYECTOS Y CONSTRUCCIONES, S.L.",
        "url": "https://assay-systems.com/register/es/aldesa-construcciones-s-a-avintia-proyectos-y-construcciones-s-l/"
      },
      {
        "name": "Alitek Ingenieria y Pavimentos, S.L.",
        "url": "https://assay-systems.com/register/es/alitek-ingenieria-y-pavimentos-s-l/"
      },
      {
        "name": "Ambling Ingeniería y Servicios SL",
        "url": "https://assay-systems.com/register/es/ambling-ingenieria-y-servicios-sl/"
      },
      {
        "name": "ANEUM LED SL",
        "url": "https://assay-systems.com/register/es/aneum-led-sl/"
      },
      {
        "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": "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 AITANA, S.L.",
        "url": "https://assay-systems.com/register/es/asfaltos-y-construcciones-aitana-s-l/"
      },
      {
        "name": "Asfaltos y Construcciones Elsan, S.A.U.",
        "url": "https://assay-systems.com/register/es/asfaltos-y-construcciones-elsan-s-a-u/"
      },
      {
        "name": "ASTECOL INSTALACIONES S.L",
        "url": "https://assay-systems.com/register/es/astecol-instalaciones-s-l/"
      },
      {
        "name": "AVINTIA PROYECTOS Y CONSTRUCCIONES S.L.",
        "url": "https://assay-systems.com/register/es/avintia-proyectos-y-construcciones-s-l/"
      },
      {
        "name": "BECSA, S.A.",
        "url": "https://assay-systems.com/register/es/becsa-s-a/"
      },
      {
        "name": "CANALIZACIONES CIVILES S.A. - PROEMISA S.L.",
        "url": "https://assay-systems.com/register/es/canalizaciones-civiles-s-a-proemisa-s-l/"
      },
      {
        "name": "CANALIZACIONES Y DERRIBOS SAFOR S.L.",
        "url": "https://assay-systems.com/register/es/canalizaciones-y-derribos-safor-s-l/"
      },
      {
        "name": "CIVINED, SLU",
        "url": "https://assay-systems.com/register/es/civined-slu/"
      },
      {
        "name": "CM SALVI, SL",
        "url": "https://assay-systems.com/register/es/cm-salvi-sl/"
      },
      {
        "name": "COBRA INSTALACIONES Y SERVICIOS, S.A.U.",
        "url": "https://assay-systems.com/register/es/cobra-instalaciones-y-servicios-s-a-u/"
      },
      {
        "name": "COMPAÑÍA GENERAL DE CONSTRUCCIÓN ABALDO S.A.",
        "url": "https://assay-systems.com/register/es/compania-general-de-construccion-abaldo-s-a/"
      },
      {
        "name": "COMPAÑÍA LEVANTINA DE EDIFICACIÓN Y OBRA PÚBLICA SA CLEOP",
        "url": "https://assay-systems.com/register/es/compania-levantina-de-edificacion-y-obra-publica-sa-cleop/"
      },
      {
        "name": "COMPANYIA GENERAL D'AIGÜES DE CATALUNYA, S.A.",
        "url": "https://assay-systems.com/register/es/companyia-general-d-aigues-de-catalunya-s-a/"
      },
      {
        "name": "COMPANYIA GENERAL D'AIGÜES DE CATALUNYA, S.A. - PROEMISA S.L.",
        "url": "https://assay-systems.com/register/es/companyia-general-d-aigues-de-catalunya-s-a-proemisa-s-l/"
      },
      {
        "name": "COMSA INSTALACIONES Y SISTEMAS INDUSTRIALES, S.A.U.",
        "url": "https://assay-systems.com/register/es/comsa-instalaciones-y-sistemas-industriales-s-a-u/"
      },
      {
        "name": "COMSA, S.A.U.",
        "url": "https://assay-systems.com/register/es/comsa-s-a-u/"
      },
      {
        "name": "CONSTRUCCIONES RAFAEL ZARZOSO S.L.",
        "url": "https://assay-systems.com/register/es/construcciones-rafael-zarzoso-s-l/"
      },
      {
        "name": "CONSTRUCCIONES RUBAU, S.A.",
        "url": "https://assay-systems.com/register/es/construcciones-rubau-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": "CONSTRUCCIONES URDECON, S.A.",
        "url": "https://assay-systems.com/register/es/construcciones-urdecon-s-a/"
      },
      {
        "name": "CONSTRUCTORA SAN JOSE, S.A.",
        "url": "https://assay-systems.com/register/es/constructora-san-jose-s-a/"
      },
      {
        "name": "CONSTRURED OBRAS Y SERVICIOS, S.A.",
        "url": "https://assay-systems.com/register/es/construred-obras-y-servicios-s-a/"
      },
      {
        "name": "CONTRATAS Y SERVICIOS FERROVIARIOS, S.A.",
        "url": "https://assay-systems.com/register/es/contratas-y-servicios-ferroviarios-s-a/"
      },
      {
        "name": "Contratas y Ventas SAU",
        "url": "https://assay-systems.com/register/es/contratas-y-ventas-sau/"
      },
      {
        "name": "COPISA CONSTRUCTORA PIRENAICA, S.A.U.",
        "url": "https://assay-systems.com/register/es/copisa-constructora-pirenaica-s-a-u/"
      },
      {
        "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": "CUERVA ENERGÍA S.L.U",
        "url": "https://assay-systems.com/register/es/cuerva-energia-s-l-u/"
      },
      {
        "name": "Cyes Infraestructuras, S.L.U.",
        "url": "https://assay-systems.com/register/es/cyes-infraestructuras-s-l-u/"
      },
      {
        "name": "CYRESPA ARQUITECTÓNICO, S.L.",
        "url": "https://assay-systems.com/register/es/cyrespa-arquitectonico-s-l/"
      },
      {
        "name": "Cyros Construcción Sostenible, S.L.",
        "url": "https://assay-systems.com/register/es/cyros-construccion-sostenible-s-l/"
      },
      {
        "name": "DISEÑO Y OBJETIVOS DE CONSTRUCCION SL",
        "url": "https://assay-systems.com/register/es/diseno-y-objetivos-de-construccion-sl/"
      },
      {
        "name": "DOALCO, S.A.",
        "url": "https://assay-systems.com/register/es/doalco-s-a/"
      },
      {
        "name": "DRAGADOS S.A.",
        "url": "https://assay-systems.com/register/es/dragados-s-a/"
      },
      {
        "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 SA",
        "url": "https://assay-systems.com/register/es/eiffage-infraestructuras-sa/"
      },
      {
        "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": "Elsamex Gestión de Infraestructuras, S.L.",
        "url": "https://assay-systems.com/register/es/elsamex-gestion-de-infraestructuras-s-l/"
      },
      {
        "name": "ETRALUX, S.A.",
        "url": "https://assay-systems.com/register/es/etralux-s-a/"
      },
      {
        "name": "FCC CONSTRUCCIÓN, S.A.",
        "url": "https://assay-systems.com/register/es/fcc-construccion-s-a/"
      },
      {
        "name": "FERROVIAL CONSTRUCCIÓN, S.A. y CADAGUA, S.A.",
        "url": "https://assay-systems.com/register/es/ferrovial-construccion-s-a-y-cadagua-s-a/"
      },
      {
        "name": "FERROVIAL ENERGÍA, S.A.",
        "url": "https://assay-systems.com/register/es/ferrovial-energia-s-a/"
      },
      {
        "name": "FIRMES ECOLOGICOS SOLTEC, SA",
        "url": "https://assay-systems.com/register/es/firmes-ecologicos-soltec-sa/"
      },
      {
        "name": "FULTON S.A.",
        "url": "https://assay-systems.com/register/es/fulton-s-a/"
      },
      {
        "name": "GESTION INTEGRAL DE RESIDUOS SÓLIDOS, S.A.",
        "url": "https://assay-systems.com/register/es/gestion-integral-de-residuos-solidos-s-a/"
      },
      {
        "name": "GESTIÓN Y EJECUCIÓN DE OBRA CIVIL S.A.U.",
        "url": "https://assay-systems.com/register/es/gestion-y-ejecucion-de-obra-civil-s-a-u/"
      },
      {
        "name": "Global Omnium Medioambiente. S.L. - Canalizaciones Civiles S.A.",
        "url": "https://assay-systems.com/register/es/global-omnium-medioambiente-s-l-canalizaciones-civiles-s-a/"
      },
      {
        "name": "GONZALEZ SOTO, S.A.",
        "url": "https://assay-systems.com/register/es/gonzalez-soto-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": "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": "ICUBE INGENIERÍA, INTERNACIONALIZACIÓN E INNOVACIÓN S.L.",
        "url": "https://assay-systems.com/register/es/icube-ingenieria-internacionalizacion-e-innovacion-s-l/"
      },
      {
        "name": "IGNIS H2O, S.L.-PROEMISA, S.L.",
        "url": "https://assay-systems.com/register/es/ignis-h2o-s-l-proemisa-s-l/"
      },
      {
        "name": "IMESAPI, S.A.",
        "url": "https://assay-systems.com/register/es/imesapi-s-a/"
      },
      {
        "name": "INAM",
        "url": "https://assay-systems.com/register/es/inam/"
      },
      {
        "name": "INDICIA, S.L.",
        "url": "https://assay-systems.com/register/es/indicia-s-l/"
      },
      {
        "name": "INFRAESTRUCTURAS Y SERVICIOS SERVITRIA, S.A.",
        "url": "https://assay-systems.com/register/es/infraestructuras-y-servicios-servitria-s-a/"
      },
      {
        "name": "INSTALACIONES Y SISTEMAS HIDRAULICOS S.L.",
        "url": "https://assay-systems.com/register/es/instalaciones-y-sistemas-hidraulicos-s-l/"
      },
      {
        "name": "Jofraser Servicios Integrales, S.L.",
        "url": "https://assay-systems.com/register/es/jofraser-servicios-integrales-s-l/"
      },
      {
        "name": "MANTENIMIENTO DE ESTACIONES ,S.L.",
        "url": "https://assay-systems.com/register/es/mantenimiento-de-estaciones-s-l/"
      },
      {
        "name": "MARCO INFRAESTRUCTURAS Y MEDIO AMBIENTE, S.A.",
        "url": "https://assay-systems.com/register/es/marco-infraestructuras-y-medio-ambiente-s-a/"
      },
      {
        "name": "MARTÍN HOLGADO OBRA CIVIL, S.L.U.",
        "url": "https://assay-systems.com/register/es/martin-holgado-obra-civil-s-l-u/"
      },
      {
        "name": "MEDITERRÁNEO DE OBRAS Y ASFALTOS S.A.",
        "url": "https://assay-systems.com/register/es/mediterraneo-de-obras-y-asfaltos-s-a/"
      },
      {
        "name": "MONTAJES ELECTRICOS ESBER, S.L.",
        "url": "https://assay-systems.com/register/es/montajes-electricos-esber-s-l/"
      },
      {
        "name": "Montaxes Electricas Noroeste SL",
        "url": "https://assay-systems.com/register/es/montaxes-electricas-noroeste-sl/"
      },
      {
        "name": "MURAT CONSTRUCCION Y MANTENIMIENTO SLU",
        "url": "https://assay-systems.com/register/es/murat-construccion-y-mantenimiento-slu/"
      },
      {
        "name": "NERCO INFRAESTRUCTURAS SL",
        "url": "https://assay-systems.com/register/es/nerco-infraestructuras-sl/"
      },
      {
        "name": "NITLUX, S.A.U.",
        "url": "https://assay-systems.com/register/es/nitlux-s-a-u/"
      },
      {
        "name": "OBRASCON HUARTE LAIN SA",
        "url": "https://assay-systems.com/register/es/obrascon-huarte-lain-sa/"
      },
      {
        "name": "OBRAS Y SERVICIOS PUBLICOS, S.A.",
        "url": "https://assay-systems.com/register/es/obras-y-servicios-publicos-s-a/"
      },
      {
        "name": "OCIDE CONSTRUCCION S.A.",
        "url": "https://assay-systems.com/register/es/ocide-construccion-s-a/"
      },
      {
        "name": "OHL SERVICIOS - INGESAN",
        "url": "https://assay-systems.com/register/es/ohl-servicios-ingesan/"
      },
      {
        "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": "ORTIZ CONSTRUCCIONES Y PROYECTOS SA / ASTEISA TRATAMIENTOS DE AGUA, S.A.U.",
        "url": "https://assay-systems.com/register/es/ortiz-construcciones-y-proyectos-sa-ingenieria-y-disenos-tecnicos-s-a-u/"
      },
      {
        "name": "ORTIZ CONSTRUCCIONES Y PROYECTOS, S.A.",
        "url": "https://assay-systems.com/register/es/ortiz-construcciones-y-proyectos-s-a/"
      },
      {
        "name": "P20026787 - FERROVIAL CONSTRUCCION, S.A. y JAIZUBIA OBRAS Y SERVICIOS, S.L.",
        "url": "https://assay-systems.com/register/es/p20026787-ferrovial-construccion-s-a-y-jaizubia-obras-y-servicios-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": "PROYECON GALICIA,S.A.",
        "url": "https://assay-systems.com/register/es/proyecon-galicia-s-a/"
      },
      {
        "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": "PUENTES Y CALZADAS INFRAESTRUCTURAS, S.L.U.",
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        "name": "RAYSO SERVICIOS 2014 S.L.",
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        "name": "REBOGAR OBRAS Y SERVICIOS S.L.",
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        "name": "RIEGOS NEWRAIN, S.L.",
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        "name": "ROTOWATER, S.L.",
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        "name": "ROVER INFRAESTRUCTURAS, S.A.",
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        "name": "Rover Maritime SL-Ambling Ingeniería y Servicios SL",
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        "name": "Señalizaciones ROSES, s.l.",
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        "url": "https://assay-systems.com/register/es/seranco-s-a-u-serveis-i-projectes-begues-s-l-union-temporal-de-empresas-ley-18-1982-de-26-de-mayo-abreviadamente-ute-estacion-colera/"
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        "name": "Servicios Técnicos de Limpiezas Industriales Miguel Arias, S.L.",
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      {
        "name": "SETGA, S.L.U",
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      {
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        "name": "SOCIEDAD ANONIMA TRABAJOS Y OBRAS Unipersonal",
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        "name": "SOCIEDAD DE FOMENTO AGRÍCOLA CASTELLONENSE, S.A.",
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        "name": "SOCIEDAD ESPAÑOLA DE CONSTRUCCIONES ELÉCTRICAS SA",
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        "name": "SOCIEDAD IBÉRICA DE CONSTRUCCIONES ELÉCTRICAS, S.A.",
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        "name": "SOGEOSA- SOCIEDAD GENERAL DE OBRAS, S.A.",
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      {
        "name": "SOGESA INSTALACIONES INTEGRALES, SAU",
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        "name": "SOLUCIONES SOLURBAN, S.L.",
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        "name": "SOLUTIOMA, S.L",
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      {
        "name": "SORIGUE ACSA CONSERVACIÓN DE INFRAESTRUCTURAS S.A.",
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        "name": "TECMO INSTALACIONES, OBRAS Y SERVICIOS, S.A.",
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      {
        "name": "TECNOLOGIA DE FIRMES, S.A.",
        "url": "https://assay-systems.com/register/es/tecnologia-de-firmes-s-a/"
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      {
        "name": "TECNOLOGIA DE LA CONSTRUCCION Y OBRAS PUBLICAS, S.A.",
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        "name": "TECSA, EMPRESA CONSTRUCTORA, S.A.",
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        "name": "TECUNI, S.A.U.",
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      {
        "name": "TK Elevadores España,S.L.",
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      {
        "name": "TORRESCAMARA Y CIA DE OBRAS, SA",
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        "name": "TORRESCAMARA Y CIA. DE OBRAS, S.A.",
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        "name": "TRENASA S.A.",
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        "name": "UC10, S.A.U.",
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      {
        "name": "URBALUX SA",
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      {
        "name": "URBAMED PROJECTS, S.L.",
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        "name": "UTE ACCIONA CONSTRUCCIÓN, S.A. - ACCIONA AGUA, S.A.",
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        "name": "UTE ACCIONA CONSTRUCCION, S.A. (65%) - COPCISA, S.A.",
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        "name": "UTE ALDESA CONSTRUCCIONES, S.A. – COALVI, S.A. - MONTAJES ELÉCTRICOS VINAELECTRIC, S.L.",
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      {
        "name": "UTE Binaria Compañía General de Construcciones, S.L.-Construcciones Sarrión, S.L.",
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      {
        "name": "UTE CONSTRUCCIONES URDECON, S.A.- MANTENIMIENTO DE ESTACIONES, S.L.",
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      {
        "name": "UTE FCC CONSTRUCCIÓN, S.A. - MONCOBRA, S.A. - FCC INDUSTRIAL E INFRAESTRUCTURAS ENERGÉTICAS, S.A.U.",
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      {
        "name": "UTE FERROVIAL CONSTRUCCION, S.A. (42,50%) - VIAS Y CONSTRUCCIONES, S.A. (42,50%) - ZARZUELA S.A. EMPRESA CONSTRUCTORA",
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      {
        "name": "UTE GLOBAL OMNIUM MEDIOAMBIENTE - PROEMISA",
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      {
        "name": "UTE MATIAS ARROM BIBILONI, S.L. - AVINTIA PROYECTOS Y CONSTRUCCIONES S.L.",
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      {
        "name": "UTE NUEVA ESTACION PARETS",
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        "name": "UTE ROVER RAIL, S.A. (60%) - ROVER INFRAESTRUCTURAS, S.A. (20%) - ELECNOR SERVICIOS Y PROYECTOS, S.A.U.",
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      {
        "name": "UTE SOLTEC-ALERO-GC",
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      {
        "name": "UTE TRES ESTACIONES",
        "url": "https://assay-systems.com/register/es/ute-tres-estaciones/"
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        "name": "VAINSA INFRAESTRUCTURAS, SL",
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        "name": "VALDONAIRE SOLUCIONES TÉCNICAS, S.L.",
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      {
        "name": "VARESER 96, S.L.",
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      {
        "name": "VESTA REHABILITACIÓN, SL",
        "url": "https://assay-systems.com/register/es/vesta-rehabilitacion-sl/"
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      {
        "name": "VIALOBRA SL",
        "url": "https://assay-systems.com/register/es/vialobra-sl/"
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      {
        "name": "Vialobra, S.L",
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      {
        "name": "Victor Tormo S.L.",
        "url": "https://assay-systems.com/register/es/victor-tormo-s-l/"
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      {
        "name": "VILOR INFRAESTRUCTURAS, S.L.",
        "url": "https://assay-systems.com/register/es/vilor-infraestructuras-s-l/"
      }
    ],
    "assay_record": "ASY-ES-0QYK46J1PU",
    "cite_as": "Assay Systems, \"Construction work for buildings relating to railway transport: Spain public contracts since 2024\", https://assay-systems.com/register/es/line/construction-work-for-buildings-relating-to-railway-transport/"
  }
}