{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T04:21:42Z",
  "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-DE-0RK9VH51EQ",
    "type": "page",
    "country": "de",
    "name": "Gegenbauer Services GmbH: public contracts won without a rival in Germany",
    "url": "https://assay-systems.com/register/de/uncontested/s/gegenbauer-services-gmbh/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 3,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 5,
        "unit": "percent",
        "display": "5%"
      },
      {
        "label": "without a competition",
        "value": 1,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 2,
        "unit": "count"
      }
    ],
    "text": [
      "Gegenbauer Services GmbH won 3 of its 61 public contract awards in Germany without a rival from 2024-01-24 to 2025-08-20: 1 without a competition and 2 after a competition that drew a single bid. 3 buyers awarded it without a rival, the largest Martin-Luther-Universität Halle-Wittenberg, Abt. 4 - Bau, Liegenschaften und Gebäudemanagement with 1."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2025-08-20",
          "Buyer": "DRV Bund Einkaufsmanagement 542540-2025",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/drv-bund-einkaufsmanagement/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2024-11-28",
          "Buyer": "Deutsche Rentenversicherung Berlin-Brandenburg 728021-2024",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/deutsche-rentenversicherung-berlin-brandenburg/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2024-01-24",
          "Buyer": "Martin-Luther-Universität Halle-Wittenberg, Abt. 4 - Bau, Liegenschaften und Gebäudemanagement 48049-2024",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/martin-luther-universitat-halle-wittenberg-abt-4-bau-liegenschaften-und-gebaudem/",
          "How": "No competition neg-wo-call",
          "Stated reason": "contest"
        }
      ]
    ],
    "records": [
      {
        "name": "all of Germany",
        "url": "https://assay-systems.com/register/de/uncontested/"
      },
      {
        "name": "record in the register",
        "url": "https://assay-systems.com/register/de/gegenbauer-services-gmbh/"
      },
      {
        "name": "Martin-Luther-Universität Halle-Wittenberg, Abt. 4 - Bau, Liegenschaften und Gebäudemanagement",
        "url": "https://assay-systems.com/register/de/uncontested/b/martin-luther-universitat-halle-wittenberg-abt-4-bau-liegenschaften-und-gebaudem/"
      },
      {
        "name": "Deutsche Rentenversicherung Berlin-Brandenburg",
        "url": "https://assay-systems.com/register/de/uncontested/b/deutsche-rentenversicherung-berlin-brandenburg/"
      },
      {
        "name": "DRV Bund Einkaufsmanagement",
        "url": "https://assay-systems.com/register/de/uncontested/b/drv-bund-einkaufsmanagement/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-DE-0RK9VH51EQ",
    "cite_as": "Assay Systems, \"Gegenbauer Services GmbH: public contracts won without a rival in Germany\", https://assay-systems.com/register/de/uncontested/s/gegenbauer-services-gmbh/"
  }
}