{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-16T08:50:09Z",
  "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-1NZKZT915E",
    "type": "line",
    "country": "es",
    "name": "Ancillary works for water pipelines: Spain public contracts since 2024",
    "url": "https://assay-systems.com/register/es/line/ancillary-works-for-water-pipelines/",
    "text": [
      "Since January 2024 the line carries 119 award notices from 59 buyers. 358 suppliers share it.",
      "38 in 2024. 43 in 2025. 38 in the first 9 months of 2026.",
      "179 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": "CHM OBRAS E INFRAESTRUCTURAS SA",
        "url": "https://assay-systems.com/register/es/chm-obras-e-infraestructuras-sa/"
      },
      {
        "name": "ELECNOR SERVICIOS Y PROYECTOS SAU",
        "url": "https://assay-systems.com/register/es/elecnor-servicios-y-proyectos-sau/"
      },
      {
        "name": "ACSA, OBRAS E INFRAESTRUCTURAS, S.A.U.",
        "url": "https://assay-systems.com/register/es/acsa-obras-e-infraestructuras-s-a-u/"
      },
      {
        "name": "COPCISA, S.A.",
        "url": "https://assay-systems.com/register/es/copcisa-s-a/"
      },
      {
        "name": "FERROVIAL CONSTRUCCIÓN, S.A.",
        "url": "https://assay-systems.com/register/es/ferrovial-construccion-s-a/"
      },
      {
        "name": "PAVASAL EMPRESA CONSTRUCTORA, S.A.U.",
        "url": "https://assay-systems.com/register/es/pavasal-empresa-constructora-s-a-u/"
      },
      {
        "name": "SERVEO SERVICIOS, S.A.U.",
        "url": "https://assay-systems.com/register/es/serveo-servicios-s-a-u/"
      },
      {
        "name": "ALDESA CONSTRUCCIONES, S.A.",
        "url": "https://assay-systems.com/register/es/aldesa-construcciones-s-a/"
      },
      {
        "name": "AQUAMBIENTE, SERVICIOS PARA EL SECTOR DEL AGUA, SAU",
        "url": "https://assay-systems.com/register/es/aquambiente-servicios-para-el-sector-del-agua-sau/"
      },
      {
        "name": "AQUATEC, PROYECTOS PARA EL SECTOR DEL AGUA, S.A.U.",
        "url": "https://assay-systems.com/register/es/aquatec-proyectos-para-el-sector-del-agua-s-a-u/"
      },
      {
        "name": "Elsamex Gestión de Infraestructuras, S.L.",
        "url": "https://assay-systems.com/register/es/elsamex-gestion-de-infraestructuras-s-l/"
      },
      {
        "name": "EULEN, S.A.",
        "url": "https://assay-systems.com/register/es/eulen-s-a/"
      },
      {
        "name": "FCC Aqualia, S.A.",
        "url": "https://assay-systems.com/register/es/fcc-aqualia-s-a/"
      },
      {
        "name": "GRUPO BERTOLIN, SAU",
        "url": "https://assay-systems.com/register/es/grupo-bertolin-sau/"
      },
      {
        "name": "GUEROLA INFRAESTRUCTURAS S.L.U.",
        "url": "https://assay-systems.com/register/es/guerola-infraestructuras-s-l-u/"
      },
      {
        "name": "IMESAPI, S.A.",
        "url": "https://assay-systems.com/register/es/imesapi-s-a/"
      },
      {
        "name": "LICUAS S.A.",
        "url": "https://assay-systems.com/register/es/licuas-s-a/"
      },
      {
        "name": "OCIDE CONSTRUCCION S.A.",
        "url": "https://assay-systems.com/register/es/ocide-construccion-s-a/"
      },
      {
        "name": "ULLASTRES S.A.",
        "url": "https://assay-systems.com/register/es/ullastres-s-a/"
      },
      {
        "name": "UTE Binaria Compañía General de Construcciones, S.L.-Construcciones Sarrión, S.L.",
        "url": "https://assay-systems.com/register/es/ute-binaria-compania-general-de-construcciones-s-l-construcciones-sarrion-s-l/"
      },
      {
        "name": "UTE PAVASAL - PAVAGUA",
        "url": "https://assay-systems.com/register/es/ute-pavasal-pavagua/"
      },
      {
        "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": "ACTIVA PARQUES Y JARDINES S.L.",
        "url": "https://assay-systems.com/register/es/activa-parques-y-jardines-s-l/"
      },
      {
        "name": "ADIANTE INFRAESTRUCTURAS, S.A.-VENTUCELI SERVICIOS, S.L.",
        "url": "https://assay-systems.com/register/es/adiante-infraestructuras-s-a-ventuceli-servicios-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": "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 Elsan, S.A.U.",
        "url": "https://assay-systems.com/register/es/asfaltos-y-construcciones-elsan-s-a-u/"
      },
      {
        "name": "ASFALTOS Y OBRAS TAFURIASTE S.L",
        "url": "https://assay-systems.com/register/es/asfaltos-y-obras-tafuriaste-s-l/"
      },
      {
        "name": "ASTURAGUA SICA S.A.U.",
        "url": "https://assay-systems.com/register/es/asturagua-sica-s-a-u/"
      },
      {
        "name": "BECSA, S.A.",
        "url": "https://assay-systems.com/register/es/becsa-s-a/"
      },
      {
        "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.U.",
        "url": "https://assay-systems.com/register/es/comsa-s-a-u/"
      },
      {
        "name": "CONEGOAL SL",
        "url": "https://assay-systems.com/register/es/conegoal-sl/"
      },
      {
        "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 - EL EJIDILLO VIVEROS INTEGRALES, S.L.",
        "url": "https://assay-systems.com/register/es/constructora-san-jose-s-a-el-ejidillo-viveros-integrales-s-l/"
      },
      {
        "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": "Cyes Infraestructuras, S.L.U.",
        "url": "https://assay-systems.com/register/es/cyes-infraestructuras-s-l-u/"
      },
      {
        "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, S.A",
        "url": "https://assay-systems.com/register/es/eiffage-infraestructuras-s-a/"
      },
      {
        "name": "EIFFAGE INFRAESTRUCTURAS, S.A-TORRESCAMARA Y CIA. DE OBRAS, S A",
        "url": "https://assay-systems.com/register/es/eiffage-infraestructuras-s-a-torrescamara-y-cia-de-obras-s-a/"
      },
      {
        "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": "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": "FULTON S.A.",
        "url": "https://assay-systems.com/register/es/fulton-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": "GONZALEZ SOTO, S.A. y OBRAS E INFRAESTRUCTURAS CARTAGO, S.L.",
        "url": "https://assay-systems.com/register/es/gonzalez-soto-s-a-y-obras-e-infraestructuras-cartago-s-l/"
      },
      {
        "name": "GOSADEX SL",
        "url": "https://assay-systems.com/register/es/gosadex-sl/"
      },
      {
        "name": "GUEROLA ÁRIDOS Y HORMIGONES S.L",
        "url": "https://assay-systems.com/register/es/guerola-aridos-y-hormigones-s-l/"
      },
      {
        "name": "IGM, ingenieria y gestión medioambiental, s.l.",
        "url": "https://assay-systems.com/register/es/igm-ingenieria-y-gestion-medioambiental-s-l/"
      },
      {
        "name": "INDICIA, S.L.",
        "url": "https://assay-systems.com/register/es/indicia-s-l/"
      },
      {
        "name": "INFOREST MEDIO AMBIENTE, S.L.",
        "url": "https://assay-systems.com/register/es/inforest-medio-ambiente-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": "MARCO INFRAESTRUCTURAS Y MEDIO AMBIENTE, S.A.",
        "url": "https://assay-systems.com/register/es/marco-infraestructuras-y-medio-ambiente-s-a/"
      },
      {
        "name": "MEDITERRÁNEO DE OBRAS Y ASFALTOS S.A.",
        "url": "https://assay-systems.com/register/es/mediterraneo-de-obras-y-asfaltos-s-a/"
      },
      {
        "name": "OBRASCON HUARTE LAIN SA",
        "url": "https://assay-systems.com/register/es/obrascon-huarte-lain-sa/"
      },
      {
        "name": "OBRASCON HUARTE LAIN S.A. y COPISA CONSTRUCTORA PIRENAICA, S.A.U. en UTE",
        "url": "https://assay-systems.com/register/es/obrascon-huarte-lain-s-a-y-copisa-constructora-pirenaica-s-a-u-en-ute/"
      },
      {
        "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": "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.",
        "url": "https://assay-systems.com/register/es/puentes-y-calzadas-infraestructuras-s-l-u/"
      },
      {
        "name": "RAYSO SERVICIOS 2014 S.L.",
        "url": "https://assay-systems.com/register/es/rayso-servicios-2014-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": "ROVER INFRAESTRUCTURAS, S.A.",
        "url": "https://assay-systems.com/register/es/rover-infraestructuras-s-a/"
      },
      {
        "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": "SAMYL FACILITY SERVICES, S.L.",
        "url": "https://assay-systems.com/register/es/samyl-facility-services-s-l/"
      },
      {
        "name": "SOCIEDAD ANONIMA TRABAJOS Y OBRAS Unipersonal",
        "url": "https://assay-systems.com/register/es/sociedad-anonima-trabajos-y-obras-unipersonal/"
      },
      {
        "name": "SOCIEDAD DE FOMENTO AGRÍCOLA CASTELLONENSE, S.A.",
        "url": "https://assay-systems.com/register/es/sociedad-de-fomento-agricola-castellonense-s-a/"
      },
      {
        "name": "TAGUA S.L.",
        "url": "https://assay-systems.com/register/es/tagua-s-l/"
      },
      {
        "name": "TALLERES Y GRUAS GONZALEZ, S.L.U.",
        "url": "https://assay-systems.com/register/es/talleres-y-gruas-gonzalez-s-l-u/"
      },
      {
        "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": "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": "TRENASA S.A.",
        "url": "https://assay-systems.com/register/es/trenasa-s-a/"
      },
      {
        "name": "UC10, S.A.U.",
        "url": "https://assay-systems.com/register/es/uc10-s-a-u/"
      },
      {
        "name": "URBAMED PROJECTS, S.L.",
        "url": "https://assay-systems.com/register/es/urbamed-projects-s-l/"
      },
      {
        "name": "UTE CONSTRUCCIONES Y OBRAS VALBUENA, S.A.U.- ESPINA OBRAS HIDRAULICAS, S.A.U. - ROVER INFRAESTRUCTURAS, S.A.",
        "url": "https://assay-systems.com/register/es/ute-construcciones-y-obras-valbuena-s-a-u-espina-obras-hidraulicas-s-a-u-rover-infraestructuras-s-a/"
      },
      {
        "name": "UTE ROVER INFRAESTRUCTURAS, S.A. y VÍAS Y OBRAS PÚBLICAS, S.A.",
        "url": "https://assay-systems.com/register/es/ute-rover-infraestructuras-s-a-y-vias-y-obras-publicas-s-a/"
      },
      {
        "name": "VARESER 96, S.L.",
        "url": "https://assay-systems.com/register/es/vareser-96-s-l/"
      },
      {
        "name": "VIAS Y CONSTRUCCIONES, S.A.",
        "url": "https://assay-systems.com/register/es/vias-y-construcciones-s-a/"
      },
      {
        "name": "VILOR INFRAESTRUCTURAS, S.L.",
        "url": "https://assay-systems.com/register/es/vilor-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": "ACCIONA FACILITY SERVICES, S.A.",
        "url": "https://assay-systems.com/register/es/acciona-facility-services-s-a/"
      },
      {
        "name": "ACCIONA MEDIO AMBIENTE S.A.",
        "url": "https://assay-systems.com/register/es/acciona-medio-ambiente-s-a/"
      },
      {
        "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": "ACTIVIDADES DE INFRAESTRUCTURAS PÚBLICA Y CONSERVACIÓN, S.L.",
        "url": "https://assay-systems.com/register/es/actividades-de-infraestructuras-publica-y-conservacion-s-l/"
      },
      {
        "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": "ACTUACIONES DE DEMOLICIONES Y CONSTRUCCIÓN SL",
        "url": "https://assay-systems.com/register/es/actuaciones-de-demoliciones-y-construccion-sl/"
      },
      {
        "name": "ACTUA, SERVICIOS Y MEDIO AMBIENTE S.L.",
        "url": "https://assay-systems.com/register/es/actua-servicios-y-medio-ambiente-s-l/"
      },
      {
        "name": "ADALUQ EXCAVACIONES Y MATERIALES DE CONSTRUCCIÓN",
        "url": "https://assay-systems.com/register/es/adaluq-excavaciones-y-materiales-de-construccion/"
      },
      {
        "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": "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": "AGUAS DE VALENCIA S.A.",
        "url": "https://assay-systems.com/register/es/aguas-de-valencia-s-a/"
      },
      {
        "name": "AIGÜES DE BARCELONA, EMPRESA METROPOLITANA DE GESTIÓ DEL CICLE INTEGRAL DE L'AIGUA, S.A.",
        "url": "https://assay-systems.com/register/es/aigues-de-barcelona-empresa-metropolitana-de-gestio-del-cicle-integral-de-l-aigua-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.- AVINTIA PROYECTOS Y CONSTRUCCIONES, S.L.",
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        "url": "https://assay-systems.com/register/es/aquatec-soluciones-medioambientales-s-a-u/"
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        "url": "https://assay-systems.com/register/es/aridos-y-excavaciones-platero-martinez-s-l/"
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        "url": "https://assay-systems.com/register/es/audeca-s-l-u/"
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        "url": "https://assay-systems.com/register/es/bycam-servicios-edificios-e-infraestructuras-s-a/"
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        "name": "Cabo Roca SL",
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        "name": "CASERVI MANTENIMIENTOS GENERALES SL",
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    "cite_as": "Assay Systems, \"Ancillary works for water pipelines: Spain public contracts since 2024\", https://assay-systems.com/register/es/line/ancillary-works-for-water-pipelines/"
  }
}