{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T00:43:30Z",
  "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-0QHMGNT1ME",
    "type": "page",
    "country": "py",
    "name": "ING. ROBERTO RODRIGUEZ ARIAS: public contracts won without a rival in Paraguay",
    "url": "https://assay-systems.com/register/py/uncontested/s/ing-roberto-rodriguez-arias/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 196,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 41,
        "unit": "percent",
        "display": "41%"
      },
      {
        "label": "without a competition",
        "value": 8,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 188,
        "unit": "count"
      }
    ],
    "text": [
      "ING. ROBERTO RODRIGUEZ ARIAS won 196 of its 478 public contract awards in Paraguay without a rival from 2016-02-12 to 2026-06-16: 8 without a competition and 188 after a competition that drew a single bid. 28 buyers awarded it without a rival, the largest Ministerio de Salud Pública y Bienestar Social (MSPBS) with 24."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2026-06-03",
          "Buyer": "Municipalidad de Santa Fé del Paraná ocds-03ad3f-488158-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-santa-fe-del-parana/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2026-05-18",
          "Buyer": "Municipalidad de Santa Fé del Paraná ocds-03ad3f-488154-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-santa-fe-del-parana/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2026-05-08",
          "Buyer": "Municipalidad de Mbaracayú ocds-03ad3f-480659-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-mbaracayu/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2026-04-30",
          "Buyer": "Municipalidad de Presidente Franco ocds-03ad3f-489008-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-presidente-franco/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2026-04-08",
          "Buyer": "Municipalidad de Mcal. Francisco Solano López ocds-03ad3f-481959-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-mcal-francisco-solano-lopez/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        },
        {
          "Date": "2026-04-08",
          "Buyer": "Municipalidad de Domingo Martínez de Irala ocds-03ad3f-481061-1",
          "Buyer link": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-domingo-martinez-de-irala/",
          "How": "Single bid open",
          "Stated reason": "Menor cuantía nacional"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Paraguay",
        "url": "https://assay-systems.com/register/py/uncontested/"
      },
      {
        "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": "Municipalidad de Domingo Martínez de Irala",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-domingo-martinez-de-irala/"
      },
      {
        "name": "Municipalidad de Mbaracayú",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-mbaracayu/"
      },
      {
        "name": "Municipalidad de los Cedrales",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-los-cedrales/"
      },
      {
        "name": "Universidad Nacional del Este (UNE)",
        "url": "https://assay-systems.com/register/py/uncontested/b/universidad-nacional-del-este-une/"
      },
      {
        "name": "Municipalidad de Mcal. Francisco Solano López",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-mcal-francisco-solano-lopez/"
      },
      {
        "name": "Municipalidad de Presidente Franco",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-presidente-franco/"
      },
      {
        "name": "Municipalidad de Katuete",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-katuete/"
      },
      {
        "name": "Municipalidad de San Cristobal",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-san-cristobal/"
      },
      {
        "name": "Municipalidad de Juan E. O'Leary",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-juan-e-o-leary/"
      },
      {
        "name": "Municipalidad de Hernandarias",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-hernandarias/"
      },
      {
        "name": "Municipalidad de Eusebio Ayala",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-eusebio-ayala/"
      },
      {
        "name": "Municipalidad de Natalio",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-natalio/"
      },
      {
        "name": "Municipalidad de Juan León Mallorquín",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-juan-leon-mallorquin/"
      },
      {
        "name": "Municipalidad de Naranjal",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-naranjal/"
      },
      {
        "name": "Municipalidad de Santa Fé del Paraná",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-santa-fe-del-parana/"
      },
      {
        "name": "Municipalidad de Ciudad del Este",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-ciudad-del-este/"
      },
      {
        "name": "Municipalidad de Pirapó",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-pirapo/"
      },
      {
        "name": "Municipalidad de Itakyry",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-itakyry/"
      },
      {
        "name": "Municipalidad de Nueva Esperanza",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-nueva-esperanza/"
      },
      {
        "name": "Municipalidad de Tavapy",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-tavapy/"
      },
      {
        "name": "Gobierno Departamental de San Pedro (S.PEDRO)",
        "url": "https://assay-systems.com/register/py/uncontested/b/gobierno-departamental-de-san-pedro-s-pedro/"
      },
      {
        "name": "Municipalidad de la Colmena",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-la-colmena/"
      },
      {
        "name": "Municipalidad de General Artigas",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-general-artigas/"
      },
      {
        "name": "Municipalidad de San Cosme y Damián",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-san-cosme-y-damian/"
      },
      {
        "name": "Municipalidad de Nueva Londres",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-nueva-londres/"
      },
      {
        "name": "Municipalidad de Salto del Guairá",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-salto-del-guaira/"
      },
      {
        "name": "Municipalidad de Tobatí",
        "url": "https://assay-systems.com/register/py/uncontested/b/municipalidad-de-tobati/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-PY-0QHMGNT1ME",
    "cite_as": "Assay Systems, \"ING. ROBERTO RODRIGUEZ ARIAS: public contracts won without a rival in Paraguay\", https://assay-systems.com/register/py/uncontested/s/ing-roberto-rodriguez-arias/"
  }
}