{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-17T23:47:29Z",
  "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-CL-1OLME2H0VG",
    "type": "page",
    "country": "cl",
    "name": "CONSTRUCTORA SIROZ LIMITADA: public contracts won without a rival in Chile",
    "url": "https://assay-systems.com/register/cl/uncontested/s/constructora-siroz-limitada/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 8,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 67,
        "unit": "percent",
        "display": "67%"
      },
      {
        "label": "without a competition",
        "value": 1,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 7,
        "unit": "count"
      }
    ],
    "text": [
      "CONSTRUCTORA SIROZ LIMITADA won 8 of its 12 public contract awards in Chile without a rival from 2024-02-20 to 2026-05-04: 1 without a competition and 7 after a competition that drew a single bid. 4 buyers awarded it without a rival, the largest I MUNICIPALIDAD DE LA FLORIDA with 3."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2026-03-26",
          "Buyer": "ILUSTRE MUNICIPALIDAD DE MELIPILLA CL-9628692",
          "Buyer link": "https://assay-systems.com/register/cl/uncontested/b/ilustre-municipalidad-de-melipilla/",
          "How": "Single bid Licitación Pública Entre 100 y 1000 UTM (LE)",
          "Stated reason": "—"
        },
        {
          "Date": "2026-03-09",
          "Buyer": "I MUNICIPALIDAD DE LA FLORIDA CL-9602619",
          "Buyer link": "https://assay-systems.com/register/cl/uncontested/b/i-municipalidad-de-la-florida/",
          "How": "Single bid Licitación Pública Mayor 1000 UTM (LP)",
          "Stated reason": "—"
        },
        {
          "Date": "2025-04-25",
          "Buyer": "I MUNICIPALIDAD DE BUIN CL-9494512",
          "Buyer link": "https://assay-systems.com/register/cl/uncontested/b/i-municipalidad-de-buin/",
          "How": "Single bid Licitación Pública Mayor 1000 UTM (LP)",
          "Stated reason": "—"
        },
        {
          "Date": "2025-01-13",
          "Buyer": "I MUNICIPALIDAD DE BUIN CL-9441487",
          "Buyer link": "https://assay-systems.com/register/cl/uncontested/b/i-municipalidad-de-buin/",
          "How": "Single bid Licitación Pública entre a 2000 y 5000 UTM (LQ)",
          "Stated reason": "—"
        },
        {
          "Date": "2024-06-24",
          "Buyer": "I MUNICIPALIDAD DE LA FLORIDA CL-9351693",
          "Buyer link": "https://assay-systems.com/register/cl/uncontested/b/i-municipalidad-de-la-florida/",
          "How": "Single bid Licitación Pública entre a 2000 y 5000 UTM (LQ)",
          "Stated reason": "—"
        },
        {
          "Date": "2024-03-22",
          "Buyer": "ILUSTRE MUNICIPALIDAD DE MELIPILLA CL-50104915",
          "Buyer link": "https://assay-systems.com/register/cl/uncontested/b/ilustre-municipalidad-de-melipilla/",
          "How": "No competition direct",
          "Stated reason": "—"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Chile",
        "url": "https://assay-systems.com/register/cl/uncontested/"
      },
      {
        "name": "record in the register",
        "url": "https://assay-systems.com/register/cl/constructora-siroz-limitada/"
      },
      {
        "name": "I MUNICIPALIDAD DE LA FLORIDA",
        "url": "https://assay-systems.com/register/cl/uncontested/b/i-municipalidad-de-la-florida/"
      },
      {
        "name": "I MUNICIPALIDAD DE BUIN",
        "url": "https://assay-systems.com/register/cl/uncontested/b/i-municipalidad-de-buin/"
      },
      {
        "name": "ILUSTRE MUNICIPALIDAD DE MELIPILLA",
        "url": "https://assay-systems.com/register/cl/uncontested/b/ilustre-municipalidad-de-melipilla/"
      },
      {
        "name": "I MUNICIPALIDAD DE CALERA DE TANGO",
        "url": "https://assay-systems.com/register/cl/uncontested/b/i-municipalidad-de-calera-de-tango/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-CL-1OLME2H0VG",
    "cite_as": "Assay Systems, \"CONSTRUCTORA SIROZ LIMITADA: public contracts won without a rival in Chile\", https://assay-systems.com/register/cl/uncontested/s/constructora-siroz-limitada/"
  }
}