The database of public procurement

108,405 companies69,545 contracting authorities2,222 BoQs with a specified brand26,228 planning offices344,994 awardsAwards up to 1 Oct 2026

Planning office

Ingenieurplan Siebel GmbH

Ingenieurplan Siebel GmbH from Haan has received one public planning contract since 2025 (as of 1 Oct 2026).

As of: · Source: official notices (Datenservice Öffentlicher Einkauf, CC0), EU Official Journal (TED) and procurement portals · How we count

42781 Haan, North Rhine-WestphaliaGeneral planningRegister No. 7273
1
planning contracts, since 21 May 2025
0
in the last twelve months
€729,388
median contract value, 1 stating one
1
median number of bids, 1 stating it

Contracts per year

2025: 1 contracts12025

The network of this office

Contracting authoritiesServicesBergisch-Rheinischer Wasserverband1Bergisch-Rheinischer Wasserverband: 1General planning1General planning: 1Ingenieurplan S…1 contracts

Contracting authorities

Services

  • General planning1

Contracting authorities from the award notices, services from the planning contracts.

Recently commissioned

DateContractContracting authorityValue
21 May 2025Generalplanung Neubau VerbandslaborGeneral planning · NoticeBergisch-Rheinischer WasserverbandNorth Rhine-Westphalia€729,388

The 1 most recent of 1.

Questions and answers

How many public contracts has Ingenieurplan Siebel GmbH received?

Ingenieurplan Siebel GmbH has received 1 public planning contract since 2025. The median contract value is €729,388, calculated over 1 contract with a stated value.

Which contracting authorities does Ingenieurplan Siebel GmbH plan for most often?

Most contracts came from Bergisch-Rheinischer Wasserverband (1).

Which planning services does Ingenieurplan Siebel GmbH provide?

Most contracts fall under “General planning” (1).

In which German states does Ingenieurplan Siebel GmbH plan?

Most contracts came from North Rhine-Westphalia (1).