{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T00:08:18Z",
  "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-07QKMYZ04C",
    "type": "page",
    "country": "de",
    "name": "Concat AG: public contracts won without a rival in Germany",
    "url": "https://assay-systems.com/register/de/uncontested/s/concat-ag/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 6,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 26,
        "unit": "percent",
        "display": "26%"
      },
      {
        "label": "without a competition",
        "value": 0,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 6,
        "unit": "count"
      }
    ],
    "text": [
      "Concat AG won 6 of its 23 public contract awards in Germany without a rival from 2024-01-09 to 2026-08-24: 0 without a competition and 6 after a competition that drew a single bid. 6 buyers awarded it without a rival, the largest ÜSTRA Hannoversche Verkehrsbetriebe Aktiengesellschaft with 1."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2026-08-24",
          "Buyer": "Deutsches Elektronen-Synchrotron DESY 582742-2026",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/deutsches-elektronen-synchrotron-desy/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2026-06-02",
          "Buyer": "Städtisches Klinikum Braunschweig gGmbH (GBA) 375962-2026",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/stadtisches-klinikum-braunschweig-ggmbh/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2026-01-30",
          "Buyer": "ÜSTRA Hannoversche Verkehrsbetriebe Aktiengesellschaft 69106-2026",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/ustra-hannoversche-verkehrsbetriebe-aktiengesellschaft/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2024-03-05",
          "Buyer": "Rhein-Erft-Kreis 134094-2024",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/rhein-erft-kreis/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2024-02-14",
          "Buyer": "Universität Stuttgart 93957-2024",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/universitat-stuttgart/",
          "How": "Single bid open",
          "Stated reason": "—"
        },
        {
          "Date": "2024-01-09",
          "Buyer": "Universität Duisburg-Essen 13592-2024",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/universitat-duisburg-essen/",
          "How": "Single bid open",
          "Stated reason": "—"
        }
      ]
    ],
    "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/concat-ag/"
      },
      {
        "name": "ÜSTRA Hannoversche Verkehrsbetriebe Aktiengesellschaft",
        "url": "https://assay-systems.com/register/de/uncontested/b/ustra-hannoversche-verkehrsbetriebe-aktiengesellschaft/"
      },
      {
        "name": "Universität Duisburg-Essen",
        "url": "https://assay-systems.com/register/de/uncontested/b/universitat-duisburg-essen/"
      },
      {
        "name": "Universität Stuttgart",
        "url": "https://assay-systems.com/register/de/uncontested/b/universitat-stuttgart/"
      },
      {
        "name": "Städtisches Klinikum Braunschweig gGmbH (GBA)",
        "url": "https://assay-systems.com/register/de/uncontested/b/stadtisches-klinikum-braunschweig-ggmbh/"
      },
      {
        "name": "Deutsches Elektronen-Synchrotron DESY",
        "url": "https://assay-systems.com/register/de/uncontested/b/deutsches-elektronen-synchrotron-desy/"
      },
      {
        "name": "Rhein-Erft-Kreis",
        "url": "https://assay-systems.com/register/de/uncontested/b/rhein-erft-kreis/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-DE-07QKMYZ04C",
    "cite_as": "Assay Systems, \"Concat AG: public contracts won without a rival in Germany\", https://assay-systems.com/register/de/uncontested/s/concat-ag/"
  }
}