{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-18T03:56:23Z",
  "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-0TECU3A0II",
    "type": "page",
    "country": "de",
    "name": "ZECH Bau SE: public contracts won without a rival in Germany",
    "url": "https://assay-systems.com/register/de/uncontested/s/zech-bau-se/",
    "figures": [
      {
        "label": "uncontested awards",
        "value": 3,
        "unit": "count"
      },
      {
        "label": "of its awards",
        "value": 30,
        "unit": "percent",
        "display": "30%"
      },
      {
        "label": "without a competition",
        "value": 0,
        "unit": "count"
      },
      {
        "label": "single bid",
        "value": 3,
        "unit": "count"
      }
    ],
    "text": [
      "ZECH Bau SE won 3 of its 10 public contract awards in Germany without a rival from 2025-10-13 to 2026-03-30: 0 without a competition and 3 after a competition that drew a single bid. 3 buyers awarded it without a rival, the largest Berliner Stadtreinigungsbetriebe AöR with 1."
    ],
    "tables": [
      [
        {},
        {
          "Date": "2026-03-30",
          "Buyer": "Berliner Stadtreinigungsbetriebe AöR 218356-2026",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/berliner-stadtreinigungsbetriebe-aor-2/",
          "How": "Single bid neg-w-call",
          "Stated reason": "—"
        },
        {
          "Date": "2025-10-21",
          "Buyer": "NRW.BANK AöR 693267-2025",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/nrw-bank-aor/",
          "How": "Single bid neg-w-call",
          "Stated reason": "—"
        },
        {
          "Date": "2025-10-13",
          "Buyer": "Amt für Recht, Vergabe und Versicherungen 672262-2025",
          "Buyer link": "https://assay-systems.com/register/de/uncontested/b/amt-fur-recht-vergabe-und-versicherungen/",
          "How": "Single bid neg-w-call",
          "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/zech-bau-se/"
      },
      {
        "name": "Berliner Stadtreinigungsbetriebe AöR",
        "url": "https://assay-systems.com/register/de/uncontested/b/berliner-stadtreinigungsbetriebe-aor-2/"
      },
      {
        "name": "NRW.BANK AöR",
        "url": "https://assay-systems.com/register/de/uncontested/b/nrw-bank-aor/"
      },
      {
        "name": "Amt für Recht, Vergabe und Versicherungen",
        "url": "https://assay-systems.com/register/de/uncontested/b/amt-fur-recht-vergabe-und-versicherungen/"
      },
      {
        "name": "All countries",
        "url": "https://assay-systems.com/register/uncontested/"
      }
    ],
    "assay_record": "ASY-DE-0TECU3A0II",
    "cite_as": "Assay Systems, \"ZECH Bau SE: public contracts won without a rival in Germany\", https://assay-systems.com/register/de/uncontested/s/zech-bau-se/"
  }
}