The database of public procurement
Contracting authority
Stadt Siegen
Stadt Siegen has awarded 7 contracts to 6 companies, most often to Köthen Energie GmbH (2) (as of 4 Oct 2026).
As of: · Source: official notices (Datenservice Öffentlicher Einkauf, CC0), EU Official Journal (TED) and procurement portals · How we count
Tenders since 2010
By year of publication, each notice once. Up to 2023 from the EU Official Journal (TED, only above the EU thresholds, buyer key “stadt siegen”), from 2024 from the DÖE, so that nothing in 2022 and 2023 is counted twice. Portals: open tenders from procurement portals beyond the DÖE, since 23 Sep 2026. Archive: national tenders from snapshots of the portals in the Internet Archive and from official gazettes, all in the past; an EU-wide procedure can appear there and in TED. The current year is incomplete.
Lots per quarter, 12 quarters
All stages, by quarter of publication.
Who wins here
| Company | Trade | Awards | Volume | Latest |
|---|---|---|---|---|
| Köthen Energie GmbHKöthen | Other | 2 | €7,123,017 | 24 Apr 2026 |
| Arbeitsgemeinschaft von Architekturstudirenden Au34Siegen | Civil engineering, earthworks | 1 | 29 Nov 2019 | |
| Deutsche Post AGBerlin | Other | 1 | 2 Oct 2013 | |
| PSS Post Service Siegerland GmbH & Co. KGSiegen | Other | 1 | 2 Oct 2013 | |
| PostCon Deutschland GmbHBerlin | Other | 1 | 2 Oct 2013 | |
| Atelier Loidl LandschaftsarchitektenBerlin | Other | 1 | 26 Feb 2010 |
6 companies with 7 awards across the whole record of this authority.
The network of this authority
Wins here
- Köthen Energie GmbH Köthen2
- Arbeitsgemeinschaft von Architekturstudirenden Au34 Siegen1
- Deutsche Post AG Berlin1
- PSS Post Service Siegerland GmbH & Co. KG Siegen1
- PostCon Deutschland GmbH Berlin1
Winners from the award notices, planning offices from the office register.
Bids per trade
Across all awards of this authority that state the number of bids. See everything with Pro
How many bids an award of this authority had. The figure that tells you whether a bid is worth it.
Open tenders
No tender of this authority is still open for bids today.
Latest lots
| Date | Lot | Stage | Value |
|---|---|---|---|
| 6 May 2026 | ErdgasNotice | Award | €6,000,000 |
| 6 May 2026 | StromNotice | Award | €6,400,000 |
| 15 Feb 2026 | ErdgasNotice | Tender | €6,000,000 |
| 15 Feb 2026 | StromNotice | Tender | €6,400,000 |
The 4 most recent lots of all stages in the last 12 quarters. Prior information means planning, no tender yet; archive means past.
Questions and answers
How many contracts has Stadt Siegen awarded?
Stadt Siegen has awarded 7 contracts to 6 companies. On average there were 4.2 bids per award, counted over 6 awards that state the number.
Which companies win most often at Stadt Siegen?
Most awards went to Köthen Energie GmbH (2), Arbeitsgemeinschaft von Architekturstudirenden Au34 (1) and Deutsche Post AG (1). In total, 6 companies have won an award here.
What does Stadt Siegen put out to tender?
By CPV division, the most recent tenders mainly concern “Construction work” (7), “Vehicles” (6) and “Energy, fuels” (5). The database holds 2 tenders of this authority.
Does Stadt Siegen have open tenders?
On 4 Oct 2026, no tender of this authority was open for bids.