{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T06:04:55Z",
  "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-NL-0GRAB2W1D4",
    "type": "page",
    "country": "nl",
    "name": "Donker Groep B.V: public contracts won without a rival in Netherlands",
    "url": "https://assay-systems.com/register/nl/uncontested/s/donker-groep-b-v/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 8,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 11,
        "unit": "percent",
        "display": "11%"
      },
      {
        "label": "without a competition",
        "value": 0,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 8,
        "unit": "count"
      }
    ],
    "text": [
      "Donker Groep B.V won 8 of its 71 public contract awards in Netherlands without a rival from 2023-11-22 to 2026-07-08: 0 without a competition and 8 after a competition that drew a single bid. 8 buyers awarded it without a rival, the largest Rijkswaterstaat Corporate Dienst with 1."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2026-07-08",
          "Buyer": "Vrije Universiteit Amsterdam 471876-2026",
          "Buyer link": "https://assay-systems.com/register/nl/uncontested/b/vrije-universiteit-amsterdam/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2026-02-03",
          "Buyer": "Gemeente Lelystad 78655-2026",
          "Buyer link": "https://assay-systems.com/register/nl/uncontested/b/gemeente-lelystad/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2025-01-29",
          "Buyer": "Gemeente Arnhem 60350-2025",
          "Buyer link": "https://assay-systems.com/register/nl/uncontested/b/gemeente-arnhem/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2024-04-10",
          "Buyer": "Gemeente Meppel 211232-2024",
          "Buyer link": "https://assay-systems.com/register/nl/uncontested/b/gemeente-meppel/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2024-03-26",
          "Buyer": "Rijkswaterstaat Corporate Dienst 179731-2024",
          "Buyer link": "https://assay-systems.com/register/nl/uncontested/b/rijkswaterstaat-corporate-dienst/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2024-01-04",
          "Buyer": "Gemeente Roerdalen 5927-2024",
          "Buyer link": "https://assay-systems.com/register/nl/uncontested/b/gemeente-roerdalen/",
          "How": "Single bid open",
          "Stated reason": "—"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Netherlands",
        "url": "https://assay-systems.com/register/nl/uncontested/"
      },
      {
        "name": "record in the register",
        "url": "https://assay-systems.com/register/nl/donker-groep-b-v/"
      },
      {
        "name": "Rijkswaterstaat Corporate Dienst",
        "url": "https://assay-systems.com/register/nl/uncontested/b/rijkswaterstaat-corporate-dienst/"
      },
      {
        "name": "Gemeente Staphorst",
        "url": "https://assay-systems.com/register/nl/uncontested/b/gemeente-staphorst/"
      },
      {
        "name": "Gemeente Roerdalen",
        "url": "https://assay-systems.com/register/nl/uncontested/b/gemeente-roerdalen/"
      },
      {
        "name": "Diamant-groep",
        "url": "https://assay-systems.com/register/nl/uncontested/b/diamant-groep/"
      },
      {
        "name": "Gemeente Arnhem",
        "url": "https://assay-systems.com/register/nl/uncontested/b/gemeente-arnhem/"
      },
      {
        "name": "Gemeente Lelystad",
        "url": "https://assay-systems.com/register/nl/uncontested/b/gemeente-lelystad/"
      },
      {
        "name": "Gemeente Meppel",
        "url": "https://assay-systems.com/register/nl/uncontested/b/gemeente-meppel/"
      },
      {
        "name": "Vrije Universiteit Amsterdam",
        "url": "https://assay-systems.com/register/nl/uncontested/b/vrije-universiteit-amsterdam/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-NL-0GRAB2W1D4",
    "cite_as": "Assay Systems, \"Donker Groep B.V: public contracts won without a rival in Netherlands\", https://assay-systems.com/register/nl/uncontested/s/donker-groep-b-v/"
  }
}