{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-17T22:40:51Z",
  "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-CO-0I55NB812N",
    "type": "page",
    "country": "co",
    "name": "CONSTRUMATER SAS: public contracts won without a rival in Colombia",
    "url": "https://assay-systems.com/register/co/uncontested/s/construmater-sas/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 7,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 12,
        "unit": "percent",
        "display": "12%"
      },
      {
        "label": "without a competition",
        "value": 7,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 0,
        "unit": "count"
      }
    ],
    "text": [
      "CONSTRUMATER SAS won 7 of its 60 public contract awards in Colombia without a rival from 2023-01-12 to 2026-10-03: 7 without a competition and 0 after a competition that drew a single bid. 3 buyers awarded it without a rival, the largest EMPRESA DE DESARROLLO URBANO Y RURAL TAMESIS with 3."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2025-12-05",
          "Buyer": "EMPRESA DE DESARROLLO URBANO Y RURAL TAMESIS CO1.PCCNTR.8681792",
          "Buyer link": "https://assay-systems.com/register/co/uncontested/b/empresa-de-desarrollo-urbano-y-rural-tamesis/",
          "How": "No competition Contratación régimen especial",
          "Stated reason": "Regla aplicable"
        },
        {
          "Date": "2025-10-29",
          "Buyer": "EMPRESA DE DESARROLLO URBANO Y RURAL TAMESIS CO1.PCCNTR.8515529",
          "Buyer link": "https://assay-systems.com/register/co/uncontested/b/empresa-de-desarrollo-urbano-y-rural-tamesis/",
          "How": "No competition Contratación régimen especial",
          "Stated reason": "Regla aplicable"
        },
        {
          "Date": "2025-10-10",
          "Buyer": "EMPRESA DE DESARROLLO URBANO Y RURAL TAMESIS CO1.PCCNTR.8443527",
          "Buyer link": "https://assay-systems.com/register/co/uncontested/b/empresa-de-desarrollo-urbano-y-rural-tamesis/",
          "How": "No competition Contratación régimen especial",
          "Stated reason": "Regla aplicable"
        },
        {
          "Date": "2025-07-02",
          "Buyer": "MUNICIPIO DE ANZA CO1.PCCNTR.8038767",
          "Buyer link": "https://assay-systems.com/register/co/uncontested/b/municipio-de-anza/",
          "How": "No competition Contratación directa",
          "Stated reason": "Urgencia manifiesta"
        },
        {
          "Date": "2025-05-14",
          "Buyer": "MUNICIPIO DE ANZA CO1.PCCNTR.7878037",
          "Buyer link": "https://assay-systems.com/register/co/uncontested/b/municipio-de-anza/",
          "How": "No competition Contratación directa",
          "Stated reason": "Urgencia manifiesta"
        },
        {
          "Date": "2023-08-10",
          "Buyer": "EMPRESA DE VIVIENDA Y DESARROLLO URBANO Y RURAL DEL MUNICIPIO DE ENVIGADO CO1.PCCNTR.5288467",
          "Buyer link": "https://assay-systems.com/register/co/uncontested/b/empresa-de-vivienda-y-desarrollo-urbano-y-rural-del-municipio-de-envigado/",
          "How": "No competition Contratación régimen especial",
          "Stated reason": "Regla aplicable"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Colombia",
        "url": "https://assay-systems.com/register/co/uncontested/"
      },
      {
        "name": "record in the register",
        "url": "https://assay-systems.com/register/co/construmater-sas/"
      },
      {
        "name": "EMPRESA DE DESARROLLO URBANO Y RURAL TAMESIS",
        "url": "https://assay-systems.com/register/co/uncontested/b/empresa-de-desarrollo-urbano-y-rural-tamesis/"
      },
      {
        "name": "MUNICIPIO DE ANZA",
        "url": "https://assay-systems.com/register/co/uncontested/b/municipio-de-anza/"
      },
      {
        "name": "EMPRESA DE VIVIENDA Y DESARROLLO URBANO Y RURAL DEL MUNICIPIO DE ENVIGADO",
        "url": "https://assay-systems.com/register/co/uncontested/b/empresa-de-vivienda-y-desarrollo-urbano-y-rural-del-municipio-de-envigado/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-CO-0I55NB812N",
    "cite_as": "Assay Systems, \"CONSTRUMATER SAS: public contracts won without a rival in Colombia\", https://assay-systems.com/register/co/uncontested/s/construmater-sas/"
  }
}