{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T14:22:32Z",
  "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-1Z0E2FJ16R",
    "type": "page",
    "country": "es",
    "name": "Administrador de Infraestructuras Ferroviarias: contracts awarded without a rival",
    "url": "https://assay-systems.com/register/es/uncontested/b/administrador-de-infraestructuras-ferroviarias/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 207,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 21,
        "unit": "percent",
        "display": "21%"
      },
      {
        "label": "suppliers",
        "value": 110,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 30,
        "unit": "count"
      }
    ],
    "text": [
      "Administrador de Infraestructuras Ferroviarias made 207 of its 968 public contract awards without a rival from 2023-11-03 to 2026-09-25: 177 without a competition and 30 after a competition that drew a single bid, to 110 suppliers; the most to VÍAS Y CONSTRUCCIONES, S.A, 8."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2026-09-24",
          "Supplier": "ArcelorMittal España S.A 659525-2026",
          "Supplier link": "https://assay-systems.com/register/es/uncontested/s/arcelormittal-espana-s-a/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2026-09-24",
          "Supplier": "Vodafone España S.A.U 657910-2026",
          "Supplier link": "https://assay-systems.com/register/es/uncontested/s/vodafone-espana-s-a-u/",
          "How": "No competition neg-wo-call",
          "Stated reason": "exclusive"
        },
        {
          "Date": "2026-09-16",
          "Supplier": "QUIRÓN PREVENCIÓN, S.L.U 637213-2026",
          "Supplier link": "https://assay-systems.com/register/es/uncontested/s/quiron-prevencion-s-l-u/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2026-09-04",
          "Supplier": "Voestalpine Railway Systems Jez SL 611282-2026",
          "Supplier link": "https://assay-systems.com/register/es/uncontested/s/voestalpine-railway-systems-jez-sl/",
          "How": "No competition neg-wo-call",
          "Stated reason": "exclusive"
        },
        {
          "Date": "2026-09-04",
          "Supplier": "RENFE VIAJEROS, S.M.E., S.A 609556-2026",
          "Supplier link": "https://assay-systems.com/register/es/uncontested/s/renfe-viajeros-s-m-e-s-a/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2026-09-02",
          "Supplier": "ADLER INSTRUMENTOS, S.L 602765-2026",
          "Supplier link": "https://assay-systems.com/register/es/uncontested/s/adler-instrumentos-s-l/",
          "How": "Single bid open",
          "Stated reason": "—"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Spain",
        "url": "https://assay-systems.com/register/es/uncontested/"
      },
      {
        "name": "VÍAS Y CONSTRUCCIONES, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/vias-y-construcciones-s-a/"
      },
      {
        "name": "VÍAS Y CONSTRUCCIONES, S.A in the register",
        "url": "https://assay-systems.com/register/es/vias-y-construcciones-s-a/"
      },
      {
        "name": "AYESA INGENIERÍA Y ARQQUITECTURA, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/ayesa-ingenieria-y-arqquitectura-s-a-u/"
      },
      {
        "name": "AYESA INGENIERÍA Y ARQQUITECTURA, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/ayesa-ingenieria-y-arqquitectura-s-a-u/"
      },
      {
        "name": "TECSA EMPRESA CONSTRUCTORA, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/tecsa-empresa-constructora-s-a/"
      },
      {
        "name": "TECSA EMPRESA CONSTRUCTORA, S.A in the register",
        "url": "https://assay-systems.com/register/es/tecsa-empresa-constructora-s-a/"
      },
      {
        "name": "SISTEMAS Y MONTAJES INDUSTRIALES, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/sistemas-y-montajes-industriales-s-a/"
      },
      {
        "name": "SISTEMAS Y MONTAJES INDUSTRIALES, S.A in the register",
        "url": "https://assay-systems.com/register/es/sistemas-y-montajes-industriales-s-a/"
      },
      {
        "name": "CONTRATAS Y VENTAS, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/contratas-y-ventas-s-a/"
      },
      {
        "name": "CONTRATAS Y VENTAS, S.A in the register",
        "url": "https://assay-systems.com/register/es/contratas-y-ventas-s-a/"
      },
      {
        "name": "FERROVIAL CONSTRUCCIÓN, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/ferrovial-construccion-s-a/"
      },
      {
        "name": "FERROVIAL CONSTRUCCIÓN, S.A in the register",
        "url": "https://assay-systems.com/register/es/ferrovial-construccion-s-a/"
      },
      {
        "name": "INFRAKONSULT EUROPA, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/infrakonsult-europa-s-l/"
      },
      {
        "name": "INFRAKONSULT EUROPA, S.L in the register",
        "url": "https://assay-systems.com/register/es/infrakonsult-europa-s-l/"
      },
      {
        "name": "COMSA, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/comsa-s-a-u/"
      },
      {
        "name": "COMSA, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/comsa-s-a-u/"
      },
      {
        "name": "Indra Sistemas SA",
        "url": "https://assay-systems.com/register/es/uncontested/s/indra-sistemas-sa/"
      },
      {
        "name": "Indra Sistemas SA in the register",
        "url": "https://assay-systems.com/register/es/indra-sistemas-sa/"
      },
      {
        "name": "Arcelormittal España, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/arcelormittal-espana-s-a/"
      },
      {
        "name": "Arcelormittal España, S.A in the register",
        "url": "https://assay-systems.com/register/es/arcelormittal-espana-s-a/"
      },
      {
        "name": "APPLUS NORCONTROL, S.L.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/applus-norcontrol-s-l-u/"
      },
      {
        "name": "APPLUS NORCONTROL, S.L.U in the register",
        "url": "https://assay-systems.com/register/es/applus-norcontrol-s-l-u/"
      },
      {
        "name": "AZVI, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/azvi-s-a-u/"
      },
      {
        "name": "AZVI, S.A.U in the register",
        "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/uncontested/s/empresa-de-transformacion-agraria-s-a-s-m-e-m-p/"
      },
      {
        "name": "EMPRESA DE TRANSFORMACIÓN AGRARIA, S.A., S.M.E., M.P in the register",
        "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/uncontested/s/lantania-s-a/"
      },
      {
        "name": "LANTANIA, S.A in the register",
        "url": "https://assay-systems.com/register/es/lantania-s-a/"
      },
      {
        "name": "SYNEOX RAIL, S.A.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/syneox-rail-s-a-l/"
      },
      {
        "name": "SYNEOX RAIL, S.A.L in the register",
        "url": "https://assay-systems.com/register/es/syneox-rail-s-a-l/"
      },
      {
        "name": "ROVER RAIL, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/rover-rail-s-a/"
      },
      {
        "name": "ROVER RAIL, S.A in the register",
        "url": "https://assay-systems.com/register/es/rover-rail-s-a/"
      },
      {
        "name": "AGRUPACIÓN GUINOVART OBRAS Y SERVICIOS HISPANIA, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/agrupacion-guinovart-obras-y-servicios-hispania-s-a/"
      },
      {
        "name": "AGRUPACIÓN GUINOVART OBRAS Y SERVICIOS HISPANIA, S.A in the register",
        "url": "https://assay-systems.com/register/es/agrupacion-guinovart-obras-y-servicios-hispania-s-a/"
      },
      {
        "name": "SIEMENS RAIL AUTOMATION, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/siemens-rail-automation-s-a-u/"
      },
      {
        "name": "SIEMENS RAIL AUTOMATION, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/siemens-rail-automation-s-a-u/"
      },
      {
        "name": "ALDESA CONSTRUCCIONES, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/aldesa-construcciones-s-a/"
      },
      {
        "name": "ALDESA CONSTRUCCIONES, S.A in the register",
        "url": "https://assay-systems.com/register/es/aldesa-construcciones-s-a/"
      },
      {
        "name": "HITACHI RAIL GTS SPAIN S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/hitachi-rail-gts-spain-s-a/"
      },
      {
        "name": "HITACHI RAIL GTS SPAIN S.A in the register",
        "url": "https://assay-systems.com/register/es/hitachi-rail-gts-spain-s-a/"
      },
      {
        "name": "ALSTOM MOVILIDAD, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/alstom-movilidad-s-l/"
      },
      {
        "name": "ALSTOM MOVILIDAD, S.L in the register",
        "url": "https://assay-systems.com/register/es/alstom-movilidad-s-l/"
      },
      {
        "name": "Renfe Mercancías, S.M.E., S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/renfe-mercancias-s-m-e-s-a/"
      },
      {
        "name": "Renfe Mercancías, S.M.E., S.A in the register",
        "url": "https://assay-systems.com/register/es/renfe-mercancias-s-m-e-s-a/"
      },
      {
        "name": "PATENTES TALGO, S.L.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/patentes-talgo-s-l-u/"
      },
      {
        "name": "PATENTES TALGO, S.L.U in the register",
        "url": "https://assay-systems.com/register/es/patentes-talgo-s-l-u/"
      },
      {
        "name": "ARDANUY INGENIERÍA, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/ardanuy-ingenieria-s-a/"
      },
      {
        "name": "ARDANUY INGENIERÍA, S.A in the register",
        "url": "https://assay-systems.com/register/es/ardanuy-ingenieria-s-a/"
      },
      {
        "name": "Coalvi, S. A",
        "url": "https://assay-systems.com/register/es/uncontested/s/coalvi-s-a/"
      },
      {
        "name": "Coalvi, S. A in the register",
        "url": "https://assay-systems.com/register/es/coalvi-s-a/"
      },
      {
        "name": "AMURRIO FERROCARRIL Y EQUIPOS, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/amurrio-ferrocarril-y-equipos-s-a/"
      },
      {
        "name": "AMURRIO FERROCARRIL Y EQUIPOS, S.A in the register",
        "url": "https://assay-systems.com/register/es/amurrio-ferrocarril-y-equipos-s-a/"
      },
      {
        "name": "ELECTREN, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/electren-s-a/"
      },
      {
        "name": "ELECTREN, S.A in the register",
        "url": "https://assay-systems.com/register/es/electren-s-a/"
      },
      {
        "name": "REDALSA, S.A. S.M.E",
        "url": "https://assay-systems.com/register/es/uncontested/s/redalsa-s-a-s-m-e/"
      },
      {
        "name": "REDALSA, S.A. S.M.E in the register",
        "url": "https://assay-systems.com/register/es/redalsa-s-a-s-m-e/"
      },
      {
        "name": "Deimos Space SLU",
        "url": "https://assay-systems.com/register/es/uncontested/s/deimos-space-slu/"
      },
      {
        "name": "Deimos Space SLU in the register",
        "url": "https://assay-systems.com/register/es/deimos-space-slu/"
      },
      {
        "name": "Vodafone España S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/vodafone-espana-s-a-u/"
      },
      {
        "name": "Vodafone España S.A.U in the register",
        "url": "https://assay-systems.com/register/es/vodafone-espana-s-a-u/"
      },
      {
        "name": "HITACHI RAIL GTS SPAIN, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/hitachi-rail-gts-spain-s-a-u/"
      },
      {
        "name": "HITACHI RAIL GTS SPAIN, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/hitachi-rail-gts-spain-s-a-u/"
      },
      {
        "name": "Capgemini España, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/capgemini-espana-s-l/"
      },
      {
        "name": "Capgemini España, S.L in the register",
        "url": "https://assay-systems.com/register/es/capgemini-espana-s-l/"
      },
      {
        "name": "PLASSER & THEURER IBÉRICA, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/plasser-theurer-iberica-s-a-u/"
      },
      {
        "name": "PLASSER & THEURER IBÉRICA, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/plasser-theurer-iberica-s-a-u/"
      },
      {
        "name": "IDOM CONSULTING, ENGINEERING, ARCHITECTURE, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/idom-consulting-engineering-architecture-s-a-u/"
      },
      {
        "name": "IDOM CONSULTING, ENGINEERING, ARCHITECTURE, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/idom-consulting-engineering-architecture-s-a-u/"
      },
      {
        "name": "UTE SIEMENS RAIL AUTOMATION S.A. - FCC INDUSTRIAL E INFRAESTRUCTURAS ENERGETICAS S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/ute-siemens-rail-automation-s-a-fcc-industrial-e-infraestructuras-energeticas-s/"
      },
      {
        "name": "UTE SIEMENS RAIL AUTOMATION S.A. - FCC INDUSTRIAL E INFRAESTRUCTURAS ENERGETICAS S.A in the register",
        "url": "https://assay-systems.com/register/es/ute-siemens-rail-automation-s-a-fcc-industrial-e-infraestructuras-energeticas-s-a/"
      },
      {
        "name": "GTS TRANSPORTATION SPAIN S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/gts-transportation-spain-s-a-u/"
      },
      {
        "name": "GTS TRANSPORTATION SPAIN S.A.U in the register",
        "url": "https://assay-systems.com/register/es/gts-transportation-spain-s-a-u/"
      },
      {
        "name": "ALSTOM TRANSPORTE SAU",
        "url": "https://assay-systems.com/register/es/uncontested/s/alstom-transporte-sau/"
      },
      {
        "name": "UTE ALSTOM INTEL VILASECA (Constituida por ALSTOM TRANSPORTE, S.A.U. e INSTALACIONES Y TÉCNICAS ELÉCTRICAS ASTURIANAS, S.A.)",
        "url": "https://assay-systems.com/register/es/uncontested/s/ute-alstom-intel-vilaseca-constituida-por-alstom-transporte-s-a-u-e-instalacione/"
      },
      {
        "name": "TK ELEVADORES ESPAÑA, S.L.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/tk-elevadores-espana-s-l-u-thyssenkrupp-elevadores-sl-empresa-extinguida/"
      },
      {
        "name": "TK ELEVADORES ESPAÑA, S.L.U in the register",
        "url": "https://assay-systems.com/register/es/tk-elevadores-espana-s-l-u/"
      },
      {
        "name": "MER MEC ESPAÑA, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/mer-mec-espana-s-l/"
      },
      {
        "name": "MER MEC ESPAÑA, S.L in the register",
        "url": "https://assay-systems.com/register/es/mer-mec-espana-s-l/"
      },
      {
        "name": "GUARCONSA, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/guarconsa-s-a/"
      },
      {
        "name": "GUARCONSA, S.A in the register",
        "url": "https://assay-systems.com/register/es/guarconsa-s-a/"
      },
      {
        "name": "GRUSAMAR INGENIERIA Y CONSULTING SL",
        "url": "https://assay-systems.com/register/es/uncontested/s/grusamar-ingenieria-y-consulting-slu/"
      },
      {
        "name": "UTE PERFILADO APARATOS VÍA LAV EXPLOTACIÓN",
        "url": "https://assay-systems.com/register/es/uncontested/s/ute-perfilado-aparatos-via-lav-explotacion/"
      },
      {
        "name": "UTE PERFILADO APARATOS VÍA LAV EXPLOTACIÓN in the register",
        "url": "https://assay-systems.com/register/es/ute-perfilado-aparatos-via-lav-explotacion/"
      },
      {
        "name": "VILOR INFRAESTRUCTURAS, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/vilor-infraestructuras-s-l/"
      },
      {
        "name": "VILOR INFRAESTRUCTURAS, S.L in the register",
        "url": "https://assay-systems.com/register/es/vilor-infraestructuras-s-l/"
      },
      {
        "name": "ALSTOM TRANSPORTE, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/alstom-transporte-s-a-u/"
      },
      {
        "name": "ALSTOM TRANSPORTE, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/alstom-transporte-s-a-u/"
      },
      {
        "name": "KYNDRYL ESPAÑA, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/kyndryl-espana-s-a/"
      },
      {
        "name": "KYNDRYL ESPAÑA, S.A in the register",
        "url": "https://assay-systems.com/register/es/kyndryl-espana-s-a/"
      },
      {
        "name": "CAF Signalling, S. L. U",
        "url": "https://assay-systems.com/register/es/uncontested/s/caf-signalling-s-l-u/"
      },
      {
        "name": "CAF Signalling, S. L. U in the register",
        "url": "https://assay-systems.com/register/es/caf-signalling-s-l-u/"
      },
      {
        "name": "VIUDA DE SAINZ, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/viuda-de-sainz-s-l/"
      },
      {
        "name": "VIUDA DE SAINZ, S.L in the register",
        "url": "https://assay-systems.com/register/es/viuda-de-sainz-s-l/"
      },
      {
        "name": "SUMINISTROS Y MONTAJES ALFAR",
        "url": "https://assay-systems.com/register/es/uncontested/s/suministros-y-montajes-alfar/"
      },
      {
        "name": "SUMINISTROS Y MONTAJES ALFAR in the register",
        "url": "https://assay-systems.com/register/es/suministros-y-montajes-alfar/"
      },
      {
        "name": "VIAVI SOLUTIONS SPAIN S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/viavi-solutions-spain-s-l/"
      },
      {
        "name": "VIAVI SOLUTIONS SPAIN S.L in the register",
        "url": "https://assay-systems.com/register/es/viavi-solutions-spain-s-l/"
      },
      {
        "name": "ENYSE, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/enyse-s-a/"
      },
      {
        "name": "ENYSE, S.A in the register",
        "url": "https://assay-systems.com/register/es/enyse-s-a/"
      },
      {
        "name": "ZENTRAL DE PROYECTOS Y SUMINISTROS FERROVIARIOS, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/zentral-de-proyectos-y-suministros-ferroviarios-s-l/"
      },
      {
        "name": "ZENTRAL DE PROYECTOS Y SUMINISTROS FERROVIARIOS, S.L in the register",
        "url": "https://assay-systems.com/register/es/zentral-de-proyectos-y-suministros-ferroviarios-s-l/"
      },
      {
        "name": "SONDEOS ESTRUCTURAS Y GEOTECNIA SL",
        "url": "https://assay-systems.com/register/es/uncontested/s/sondeos-estructuras-y-geotecnia-sl/"
      },
      {
        "name": "SONDEOS ESTRUCTURAS Y GEOTECNIA SL in the register",
        "url": "https://assay-systems.com/register/es/sondeos-estructuras-y-geotecnia-sl/"
      },
      {
        "name": "HDI GLOBAL SE Sucursal en España",
        "url": "https://assay-systems.com/register/es/uncontested/s/hdi-global-se-sucursal-en-espana/"
      },
      {
        "name": "HDI GLOBAL SE Sucursal en España in the register",
        "url": "https://assay-systems.com/register/es/hdi-global-se-sucursal-en-espana/"
      },
      {
        "name": "RENFE VIAJEROS, S.M.E., S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/renfe-viajeros-s-m-e-s-a/"
      },
      {
        "name": "RENFE VIAJEROS, S.M.E., S.A in the register",
        "url": "https://assay-systems.com/register/es/renfe-viajeros-s-m-e-s-a/"
      },
      {
        "name": "Voestalpine Railway Systems Jez SL",
        "url": "https://assay-systems.com/register/es/uncontested/s/voestalpine-railway-systems-jez-sl/"
      },
      {
        "name": "Voestalpine Railway Systems Jez SL in the register",
        "url": "https://assay-systems.com/register/es/voestalpine-railway-systems-jez-sl/"
      },
      {
        "name": "GPO INGENIERÍA Y ARQUITECTURA SLU",
        "url": "https://assay-systems.com/register/es/uncontested/s/gpo-ingenieria-y-arquitectura-slu/"
      },
      {
        "name": "GPO INGENIERÍA Y ARQUITECTURA SLU in the register",
        "url": "https://assay-systems.com/register/es/gpo-ingenieria-y-arquitectura-slu/"
      },
      {
        "name": "INDRA SISTEMAS, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/indra-sistemas-s-a/"
      },
      {
        "name": "INDRA SISTEMAS, S.A in the register",
        "url": "https://assay-systems.com/register/es/indra-sistemas-s-a/"
      },
      {
        "name": "ICON MULTIMEDIA, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/icon-multimedia-s-l/"
      },
      {
        "name": "ICON MULTIMEDIA, S.L in the register",
        "url": "https://assay-systems.com/register/es/icon-multimedia-s-l/"
      },
      {
        "name": "Applus Norcontrol SLU",
        "url": "https://assay-systems.com/register/es/uncontested/s/applus-norcontrol-slu/"
      },
      {
        "name": "Applus Norcontrol SLU in the register",
        "url": "https://assay-systems.com/register/es/applus-norcontrol-slu/"
      },
      {
        "name": "SAITEC, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/saitec-s-a/"
      },
      {
        "name": "SAITEC, S.A in the register",
        "url": "https://assay-systems.com/register/es/saitec-s-a/"
      },
      {
        "name": "SYNEOX RAIL SL",
        "url": "https://assay-systems.com/register/es/uncontested/s/syneox-rail-sl/"
      },
      {
        "name": "SYNEOX RAIL SL in the register",
        "url": "https://assay-systems.com/register/es/syneox-rail-sl/"
      },
      {
        "name": "CONSTRUCCIONES Y AUXILIAR DE FERROCARRILES, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/construcciones-y-auxiliar-de-ferrocarriles-s-a/"
      },
      {
        "name": "CONSTRUCCIONES Y AUXILIAR DE FERROCARRILES, S.A in the register",
        "url": "https://assay-systems.com/register/es/construcciones-y-auxiliar-de-ferrocarriles-s-a/"
      },
      {
        "name": "AXIL INGENIERIA Y SERVICIOS SL",
        "url": "https://assay-systems.com/register/es/uncontested/s/axil-ingenieria-y-servicios-sl/"
      },
      {
        "name": "AXIL INGENIERIA Y SERVICIOS SL in the register",
        "url": "https://assay-systems.com/register/es/axil-ingenieria-y-servicios-sl/"
      },
      {
        "name": "PRICEWATERHOUSECOOPERS ASESORES DE NEGOCIOS, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/pricewaterhousecoopers-asesores-de-negocios-s-l/"
      },
      {
        "name": "PRICEWATERHOUSECOOPERS ASESORES DE NEGOCIOS, S.L in the register",
        "url": "https://assay-systems.com/register/es/pricewaterhousecoopers-asesores-de-negocios-s-l/"
      },
      {
        "name": "UTE GTS SOLUCIÓN ACTIVOS CONECTADOS Y CIBERSEGURIDAD",
        "url": "https://assay-systems.com/register/es/uncontested/s/ute-gts-solucion-activos-conectados-y-ciberseguridad/"
      },
      {
        "name": "UTE GTS SOLUCIÓN ACTIVOS CONECTADOS Y CIBERSEGURIDAD in the register",
        "url": "https://assay-systems.com/register/es/ute-gts-solucion-activos-conectados-y-ciberseguridad/"
      },
      {
        "name": "INNOVACIÓN GLOBAL DE SEGURIDAD, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/innovacion-global-de-seguridad-s-a-u/"
      },
      {
        "name": "INNOVACIÓN GLOBAL DE SEGURIDAD, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/innovacion-global-de-seguridad-s-a-u/"
      },
      {
        "name": "CONSULTRANS, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/consultrans-s-a-u/"
      },
      {
        "name": "CONSULTRANS, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/consultrans-s-a-u/"
      },
      {
        "name": "UTE OBRAS DE TELECOMUNICACIONES NORTE, NORESTE Y NOROESTE (constituida por TPF GETINSA EUROESTUDIOS, S.L.- TYLIN SPAIN, S.L.)",
        "url": "https://assay-systems.com/register/es/uncontested/s/ute-obras-de-telecomunicaciones-norte-noreste-y-noroeste-constituida-por-tpf-get/"
      },
      {
        "name": "QUIRÓN PREVENCIÓN, S.L.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/quiron-prevencion-s-l-u/"
      },
      {
        "name": "QUIRÓN PREVENCIÓN, S.L.U in the register",
        "url": "https://assay-systems.com/register/es/quiron-prevencion-s-l-u/"
      },
      {
        "name": "PONDIO INGENIEROS, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/pondio-ingenieros-s-l/"
      },
      {
        "name": "PONDIO INGENIEROS, S.L in the register",
        "url": "https://assay-systems.com/register/es/pondio-ingenieros-s-l/"
      },
      {
        "name": "SGS TECNOS, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/sgs-tecnos-s-a/"
      },
      {
        "name": "SGS TECNOS, S.A in the register",
        "url": "https://assay-systems.com/register/es/sgs-tecnos-s-a/"
      },
      {
        "name": "UTE TÉCNICA Y PROYECTOS, S.A. (TYPSA) – INSERAIL, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/ute-tecnica-y-proyectos-s-a-typsa-inserail-s-l/"
      },
      {
        "name": "UTE TÉCNICA Y PROYECTOS, S.A. (TYPSA) – INSERAIL, S.L in the register",
        "url": "https://assay-systems.com/register/es/ute-tecnica-y-proyectos-s-a-typsa-inserail-s-l/"
      },
      {
        "name": "INDRA SOLUCIONES TECNOLOGIAS DE LA INFORMACION, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/indra-soluciones-tecnologias-de-la-informacion-s-l-u/"
      },
      {
        "name": "TÉCNICA Y PROYECTOS, S.A. (TYPSA)",
        "url": "https://assay-systems.com/register/es/uncontested/s/tecnica-y-proyectos-s-a/"
      },
      {
        "name": "TÉCNICA Y PROYECTOS, S.A. (TYPSA) in the register",
        "url": "https://assay-systems.com/register/es/tecnica-y-proyectos-s-a-typsa/"
      },
      {
        "name": "CANTERAS ÁVILA, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/canteras-avila-s-l/"
      },
      {
        "name": "CANTERAS ÁVILA, S.L in the register",
        "url": "https://assay-systems.com/register/es/canteras-avila-s-l/"
      },
      {
        "name": "AIRTREN, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/airtren-s-l/"
      },
      {
        "name": "AIRTREN, S.L in the register",
        "url": "https://assay-systems.com/register/es/airtren-s-l/"
      },
      {
        "name": "SIEMENS RAIL AUTOMOTION, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/siemens-rail-automotion-s-a/"
      },
      {
        "name": "SIEMENS RAIL AUTOMOTION, S.A in the register",
        "url": "https://assay-systems.com/register/es/siemens-rail-automotion-s-a/"
      },
      {
        "name": "SYNEOX RAIL, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/syneox-rail-s-l/"
      },
      {
        "name": "SYNEOX RAIL, S.L in the register",
        "url": "https://assay-systems.com/register/es/syneox-rail-s-l/"
      },
      {
        "name": "ESTEYCO, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/esteyco-s-a/"
      },
      {
        "name": "ESTEYCO, S.A in the register",
        "url": "https://assay-systems.com/register/es/esteyco-s-a/"
      },
      {
        "name": "GIS INGENIERÍA CIVIL, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/gis-ingenieria-civil-s-l/"
      },
      {
        "name": "GIS INGENIERÍA CIVIL, S.L in the register",
        "url": "https://assay-systems.com/register/es/gis-ingenieria-civil-s-l/"
      },
      {
        "name": "LRA INFRASTRUCTURES CONSULTING, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/lra-infrastructures-consulting-s-l/"
      },
      {
        "name": "LRA INFRASTRUCTURES CONSULTING, S.L in the register",
        "url": "https://assay-systems.com/register/es/lra-infrastructures-consulting-s-l/"
      },
      {
        "name": "SACYR FERROVIARIAS S.A.,",
        "url": "https://assay-systems.com/register/es/uncontested/s/sacyr-ferroviarias-s-a/"
      },
      {
        "name": "SACYR FERROVIARIAS S.A., in the register",
        "url": "https://assay-systems.com/register/es/sacyr-ferroviarias-s-a/"
      },
      {
        "name": "TPF Getinsa Euroestudios, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/tpf-getinsa-euroestudios-s-l/"
      },
      {
        "name": "TPF Getinsa Euroestudios, S.L in the register",
        "url": "https://assay-systems.com/register/es/tpf-getinsa-euroestudios-s-l/"
      },
      {
        "name": "TECSA, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/tecsa-s-a/"
      },
      {
        "name": "TECSA, S.A in the register",
        "url": "https://assay-systems.com/register/es/tecsa-s-a/"
      },
      {
        "name": "UTE TYLIN SPAIN S.L. (B66186479) (70%) – GEOCONTROL, S.A. (A28752285) (30%)",
        "url": "https://assay-systems.com/register/es/uncontested/s/ute-tylin-spain-s-l-b66186479-70-geocontrol-s-a-a28752285-30/"
      },
      {
        "name": "ADLER INSTRUMENTOS, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/adler-instrumentos-s-l/"
      },
      {
        "name": "ADLER INSTRUMENTOS, S.L in the register",
        "url": "https://assay-systems.com/register/es/adler-instrumentos-s-l/"
      },
      {
        "name": "COMFICA SOLUCIONES INTEGRALES, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/comfica-soluciones-integrales-s-a/"
      },
      {
        "name": "COMFICA SOLUCIONES INTEGRALES, S.A in the register",
        "url": "https://assay-systems.com/register/es/comfica-soluciones-integrales-s-a/"
      },
      {
        "name": "Nokia Spain, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/nokia-spain-s-a/"
      },
      {
        "name": "Nokia Spain, S.A in the register",
        "url": "https://assay-systems.com/register/es/nokia-spain-s-a/"
      },
      {
        "name": "SYSTRA ARDANUY INGENIERIA, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/systra-ardanuy-ingenieria-s-a-u/"
      },
      {
        "name": "SYSTRA ARDANUY INGENIERIA, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/systra-ardanuy-ingenieria-s-a-u/"
      },
      {
        "name": "IDOM CONSULTING ENGINEERING ARCHITECTURE SA",
        "url": "https://assay-systems.com/register/es/uncontested/s/idom-consulting-engineering-architecture-sau/"
      },
      {
        "name": "PASCH Y CÍA, S.A.U",
        "url": "https://assay-systems.com/register/es/uncontested/s/pasch-y-cia-s-a-u/"
      },
      {
        "name": "PASCH Y CÍA, S.A.U in the register",
        "url": "https://assay-systems.com/register/es/pasch-y-cia-s-a-u/"
      },
      {
        "name": "VIRTUALWARE 2007 SOCIEDAD ANONIMA",
        "url": "https://assay-systems.com/register/es/uncontested/s/virtualware-2007-sociedad-anonima/"
      },
      {
        "name": "VIRTUALWARE 2007 SOCIEDAD ANONIMA in the register",
        "url": "https://assay-systems.com/register/es/virtualware-2007-sociedad-anonima/"
      },
      {
        "name": "ORACLE IBÉRICA, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/oracle-iberica-s-l/"
      },
      {
        "name": "ORACLE IBÉRICA, S.L in the register",
        "url": "https://assay-systems.com/register/es/oracle-iberica-s-l/"
      },
      {
        "name": "TYLin Spain SL",
        "url": "https://assay-systems.com/register/es/uncontested/s/tylin-spain-sl/"
      },
      {
        "name": "TYLin Spain SL in the register",
        "url": "https://assay-systems.com/register/es/tylin-spain-sl/"
      },
      {
        "name": "SISTEMAS INFORMÁTICOS ABIERTOS, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/sistemas-informaticos-abiertos-s-a/"
      },
      {
        "name": "SISTEMAS INFORMÁTICOS ABIERTOS, S.A in the register",
        "url": "https://assay-systems.com/register/es/sistemas-informaticos-abiertos-s-a/"
      },
      {
        "name": "ASOCIACION DE ACCION FERROVIARIA (CETREN)",
        "url": "https://assay-systems.com/register/es/uncontested/s/asociacion-de-accion-ferroviaria-cetren/"
      },
      {
        "name": "ASOCIACION DE ACCION FERROVIARIA (CETREN) in the register",
        "url": "https://assay-systems.com/register/es/asociacion-de-accion-ferroviaria-cetren/"
      },
      {
        "name": "UTE AIRTREN, S.L. - TEKIA INGENIEROS, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/ute-airtren-s-l-tekia-ingenieros-s-a/"
      },
      {
        "name": "UTE AIRTREN, S.L. - TEKIA INGENIEROS, S.A in the register",
        "url": "https://assay-systems.com/register/es/ute-airtren-s-l-tekia-ingenieros-s-a/"
      },
      {
        "name": "INVESTIGACIÓN Y CONTROL DE CALIDAD S.A. Unipersonal (INCOSA)",
        "url": "https://assay-systems.com/register/es/uncontested/s/investigacion-y-control-de-calidad-s-a-unipersonal-incosa/"
      },
      {
        "name": "TREBOL INTEGRACIÓN SOCIAL, S.L",
        "url": "https://assay-systems.com/register/es/uncontested/s/trebol-integracion-social-s-l/"
      },
      {
        "name": "TREBOL INTEGRACIÓN SOCIAL, S.L in the register",
        "url": "https://assay-systems.com/register/es/trebol-integracion-social-s-l/"
      },
      {
        "name": "QLAR Europe GmbH",
        "url": "https://assay-systems.com/register/es/uncontested/s/qlar-europe-gmbh/"
      },
      {
        "name": "QLAR Europe GmbH in the register",
        "url": "https://assay-systems.com/register/es/qlar-europe-gmbh/"
      },
      {
        "name": "DESARROLLOS Y FABRICACIÓN, DYF, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/desarrollos-y-fabricacion-dyf-s-a/"
      },
      {
        "name": "DESARROLLOS Y FABRICACIÓN, DYF, S.A in the register",
        "url": "https://assay-systems.com/register/es/desarrollos-y-fabricacion-dyf-s-a/"
      },
      {
        "name": "SCHWIHAG AG",
        "url": "https://assay-systems.com/register/es/uncontested/s/schwihag-ag/"
      },
      {
        "name": "SCHWIHAG AG in the register",
        "url": "https://assay-systems.com/register/es/schwihag-ag/"
      },
      {
        "name": "Vossloh Fastening Systems GmbH",
        "url": "https://assay-systems.com/register/es/uncontested/s/vossloh-fastening-systems-gmbh/"
      },
      {
        "name": "Vossloh Fastening Systems GmbH in the register",
        "url": "https://assay-systems.com/register/es/vossloh-fastening-systems-gmbh/"
      },
      {
        "name": "TELECOMUNICACIÓN, ELECTRÓNICA Y CONMUTACIÓN S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/telecomunicacion-electronica-y-conmutacion-s-a-tecosa/"
      },
      {
        "name": "TELECOMUNICACIÓN, ELECTRÓNICA Y CONMUTACIÓN S.A in the register",
        "url": "https://assay-systems.com/register/es/telecomunicacion-electronica-y-conmutacion-s-a/"
      },
      {
        "name": "E.P.E RENFE-Operadora",
        "url": "https://assay-systems.com/register/es/uncontested/s/e-p-e-renfe-operadora/"
      },
      {
        "name": "HORUS HARDWARE, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/horus-hardware-s-a/"
      },
      {
        "name": "HORUS HARDWARE, S.A in the register",
        "url": "https://assay-systems.com/register/es/horus-hardware-s-a/"
      },
      {
        "name": "ALFAR",
        "url": "https://assay-systems.com/register/es/uncontested/s/alfar/"
      },
      {
        "name": "ALFAR in the register",
        "url": "https://assay-systems.com/register/es/alfar/"
      },
      {
        "name": "Grupo Tecnico Rivi SL",
        "url": "https://assay-systems.com/register/es/uncontested/s/grupo-tecnico-rivi-sl/"
      },
      {
        "name": "Grupo Tecnico Rivi SL in the register",
        "url": "https://assay-systems.com/register/es/grupo-tecnico-rivi-sl/"
      },
      {
        "name": "NORTHGATE ESPAÑA RENTING FLEXIBLE, S.A",
        "url": "https://assay-systems.com/register/es/uncontested/s/northgate-espana-renting-flexible-s-a/"
      },
      {
        "name": "NORTHGATE ESPAÑA RENTING FLEXIBLE, S.A in the register",
        "url": "https://assay-systems.com/register/es/northgate-espana-renting-flexible-s-a/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-ES-1Z0E2FJ16R",
    "cite_as": "Assay Systems, \"Administrador de Infraestructuras Ferroviarias: contracts awarded without a rival\", https://assay-systems.com/register/es/uncontested/b/administrador-de-infraestructuras-ferroviarias/"
  }
}