{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T03:27:51Z",
  "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-EC-1MQORBX0M7",
    "type": "page",
    "country": "ec",
    "name": "CONSTRUCTORA DIAZ CALVA CIA LTDA: public contracts won without a rival in Ecuador",
    "url": "https://assay-systems.com/register/ec/uncontested/s/constructora-diaz-calva-cia-ltda/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 10,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 71,
        "unit": "percent",
        "display": "71%"
      },
      {
        "label": "without a competition",
        "value": 6,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 4,
        "unit": "count"
      }
    ],
    "text": [
      "CONSTRUCTORA DIAZ CALVA CIA LTDA won 10 of its 14 public contract awards in Ecuador without a rival from 2017-07-03 to 2023-04-03: 6 without a competition and 4 after a competition that drew a single bid. 6 buyers awarded it without a rival, the largest GOBIERNO AUTONOMO DESCENTRALIZADO PARROQUIAL RURAL DE JIMBURA with 3."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2023-04-03",
          "Buyer": "GOBIERNO AUTONOMO DESCENTRALIZADO DE LA PARROQUIA EL INGENIO ocds-5wno2w-MCO-GADPEI-001-2023-153045",
          "Buyer link": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-de-la-parroquia-el-ingenio-2/",
          "How": "Single bid selective",
          "Stated reason": "Menor Cuantía"
        },
        {
          "Date": "2023-03-29",
          "Buyer": "GOBIERNO AUTONOMO DESCENTRALIZADO PARROQUIAL RURAL DE JIMBURA ocds-5wno2w-CDC-GADPRJ-002-2023-126034",
          "Buyer link": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-parroquial-rural-de-jimbura/",
          "How": "No competition direct",
          "Stated reason": "Contratacion directa"
        },
        {
          "Date": "2023-03-22",
          "Buyer": "GOBIERNO AUTONOMO DESCENTRALIZADO DE LA PARROQUIA EL LUCERO ocds-5wno2w-CDC-GADPEL-002-2023-127716",
          "Buyer link": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-de-la-parroquia-el-lucero/",
          "How": "No competition direct",
          "Stated reason": "Contratacion directa"
        },
        {
          "Date": "2022-08-31",
          "Buyer": "GOBIERNO AUTONOMO DESCENTRALIZADO DE LA PARROQUIA EL AIRO ocds-5wno2w-CDC_GADPRAI-002_2022-114995",
          "Buyer link": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-de-la-parroquia-el-airo/",
          "How": "No competition direct",
          "Stated reason": "Contratacion directa"
        },
        {
          "Date": "2022-08-25",
          "Buyer": "GOBIERNO AUTONOMO DESCENTRALIZADO PARROQUIAL RURAL DE JIMBURA ocds-5wno2w-CDC-GADPRJ-002-2022-126034",
          "Buyer link": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-parroquial-rural-de-jimbura/",
          "How": "No competition direct",
          "Stated reason": "Contratacion directa"
        },
        {
          "Date": "2022-02-21",
          "Buyer": "GOBIERNO AUTONOMO DESCENTRALIZADO DE LA PARROQUIA EL AIRO ocds-5wno2w-MCO-GADPEAI_1_2022-114995",
          "Buyer link": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-de-la-parroquia-el-airo/",
          "How": "Single bid selective",
          "Stated reason": "Menor Cuantía"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Ecuador",
        "url": "https://assay-systems.com/register/ec/uncontested/"
      },
      {
        "name": "GOBIERNO AUTONOMO DESCENTRALIZADO PARROQUIAL RURAL DE JIMBURA",
        "url": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-parroquial-rural-de-jimbura/"
      },
      {
        "name": "GOBIERNO AUTONOMO DESCENTRALIZADO DE LA PARROQUIA EL INGENIO",
        "url": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-de-la-parroquia-el-ingenio-2/"
      },
      {
        "name": "GOBIERNO AUTONOMO DESCENTRALIZADO DE LA PARROQUIA EL AIRO",
        "url": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-de-la-parroquia-el-airo/"
      },
      {
        "name": "GOBIERNO AUTONOMO DESCENTRALIZADO DE LA PARROQUIA EL LUCERO",
        "url": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-de-la-parroquia-el-lucero/"
      },
      {
        "name": "GOBIERNO AUTONOMO DESCENTRALIZADO PARROQUIAL DE EL CISNE",
        "url": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-parroquial-de-el-cisne/"
      },
      {
        "name": "GOBIERNO AUTONOMO DESCENTRALIZADO PARROQUIAL RURAL SANTA TERESITA",
        "url": "https://assay-systems.com/register/ec/uncontested/b/gobierno-autonomo-descentralizado-parroquial-rural-santa-teresita-2/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-EC-1MQORBX0M7",
    "cite_as": "Assay Systems, \"CONSTRUCTORA DIAZ CALVA CIA LTDA: public contracts won without a rival in Ecuador\", https://assay-systems.com/register/ec/uncontested/s/constructora-diaz-calva-cia-ltda/"
  }
}