{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T01:41:40Z",
  "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-PY-00TJU781LB",
    "type": "page",
    "country": "py",
    "name": "CANTERO S.A: public contracts won without a rival in Paraguay",
    "url": "https://assay-systems.com/register/py/uncontested/s/cantero-s-a/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 49,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 55,
        "unit": "percent",
        "display": "55%"
      },
      {
        "label": "without a competition",
        "value": 0,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 49,
        "unit": "count"
      }
    ],
    "text": [
      "CANTERO S.A won 49 of its 89 public contract awards in Paraguay without a rival from 2016-05-06 to 2026-04-27: 0 without a competition and 49 after a competition that drew a single bid. 14 buyers awarded it without a rival, the largest Dirección Nacional de Aeronáutica Civil (DINAC) with 24."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2026-03-10",
          "Buyer": "Dirección Nacional de Aeronáutica Civil (DINAC) ocds-03ad3f-476300-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/direccion-nacional-de-aeronautica-civil-dinac/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2026-02-27",
          "Buyer": "Municipalidad de Concepción ocds-03ad3f-478095-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-concepcion/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2025-11-19",
          "Buyer": "Dirección Nacional de Aeronáutica Civil (DINAC) ocds-03ad3f-474580-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/direccion-nacional-de-aeronautica-civil-dinac/",
          "How": "Single bid open",
          "Stated reason": "Licitación Pública Nacional"
        },
        {
          "Date": "2025-09-16",
          "Buyer": "Comisión Nacional de Telecomunicaciones (CONATEL) ocds-03ad3f-463675-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/comision-nacional-de-telecomunicaciones-conatel/",
          "How": "Single bid open",
          "Stated reason": "Licitación Pública Nacional"
        },
        {
          "Date": "2025-08-18",
          "Buyer": "Dirección Nacional de Aeronáutica Civil (DINAC) ocds-03ad3f-468304-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/direccion-nacional-de-aeronautica-civil-dinac/",
          "How": "Single bid open",
          "Stated reason": "Licitación Pública Nacional"
        },
        {
          "Date": "2025-08-18",
          "Buyer": "Dirección Nacional de Aeronáutica Civil (DINAC) ocds-03ad3f-468248-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/direccion-nacional-de-aeronautica-civil-dinac/",
          "How": "Single bid open",
          "Stated reason": "Licitación Pública Nacional"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Paraguay",
        "url": "https://assay-systems.com/register/py/uncontested/"
      },
      {
        "name": "record in the register",
        "url": "https://assay-systems.com/register/py/cantero-s-a/"
      },
      {
        "name": "Dirección Nacional de Aeronáutica Civil (DINAC)",
        "url": "https://assay-systems.com/register/py/uncontested/b/direccion-nacional-de-aeronautica-civil-dinac/"
      },
      {
        "name": "Municipalidad de Concepción",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-concepcion/"
      },
      {
        "name": "Instituto Nacional de Tecnología, Normalización y Metrología (INTN)",
        "url": "https://assay-systems.com/register/py/uncontested/b/instituto-nacional-de-tecnologia-normalizacion-y-metrologia-intn/"
      },
      {
        "name": "Municipalidad de Luque",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-luque/"
      },
      {
        "name": "Gobierno Departamental de Concepción (CONCEPCIÓN)",
        "url": "https://assay-systems.com/register/py/uncontested/b/gobierno-departamental-de-concepcion-concepcion/"
      },
      {
        "name": "Ministerio de Salud Pública y Bienestar Social (MSPBS)",
        "url": "https://assay-systems.com/register/py/uncontested/b/ministerio-de-salud-publica-y-bienestar-social-mspbs/"
      },
      {
        "name": "Petróleos Paraguayos (PETROPAR)",
        "url": "https://assay-systems.com/register/py/uncontested/b/petroleos-paraguayos-petropar/"
      },
      {
        "name": "Comisión Nacional de Telecomunicaciones (CONATEL)",
        "url": "https://assay-systems.com/register/py/uncontested/b/comision-nacional-de-telecomunicaciones-conatel/"
      },
      {
        "name": "Ministerio de Defensa Nacional (MDN)",
        "url": "https://assay-systems.com/register/py/uncontested/b/ministerio-de-defensa-nacional-mdn/"
      },
      {
        "name": "Ministerio de Desarrollo Social (MDS)",
        "url": "https://assay-systems.com/register/py/uncontested/b/ministerio-de-desarrollo-social-mds/"
      },
      {
        "name": "Dirección Nacional de Migraciones (DNM)",
        "url": "https://assay-systems.com/register/py/uncontested/b/direccion-nacional-de-migraciones-dnm/"
      },
      {
        "name": "Municipalidad de Mariano Roque Alonso",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-mariano-roque-alonso/"
      },
      {
        "name": "Ente Regulador de Servicios Sanitarios (ERSSAN)",
        "url": "https://assay-systems.com/register/py/uncontested/b/ente-regulador-de-servicios-sanitarios-erssan/"
      },
      {
        "name": "Gobierno Departamental de Central (CENTRAL)",
        "url": "https://assay-systems.com/register/py/uncontested/b/gobierno-departamental-de-central-central/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-PY-00TJU781LB",
    "cite_as": "Assay Systems, \"CANTERO S.A: public contracts won without a rival in Paraguay\", https://assay-systems.com/register/py/uncontested/s/cantero-s-a/"
  }
}