The database of public procurement

116,343 companies72,724 contracting authorities2,567 BoQs with a specified brand27,690 planning offices366,662 awardsAwards up to 3 Oct 2026

Company

TAC-Solar GmbH

TAC-Solar GmbH from Düsseldorf has been awarded 7 public contracts by 6 contracting authorities since 2024 (as of 4 Oct 2026).

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

40210 Düsseldorf, North Rhine-WestphaliaElectrical installationsID DE278863049also as Tac-Solar
7
awards in 7 procedures, since 28 Oct 2024
€544,791
contract value, 5 of 7 stating one
13.3
bids on average when this company wins; sole bidder 0 times
21 Apr 2026
latest award, 3 times in Schleswig-Holstein

Awards per year

2024: 1 award120242025: 5 awards520252026: 1 award12026

2024: €95,933 · 2025: €448,857. The current year is incomplete.

Timeline, 36 months

202320242025202621 Apr 2026: Installation von Photovoltaikanlagen ggf. mit Photovoltaik-gekoppeltem Batteriespeichersystem für diverse von der BIM …14 Jul 2025: BÜ_35 (PV-Anlage), €149,37214 Jul 2025: WSB_35 (PV-Anlage), €80,71514 Jul 2025: 34_VE35 (PV-Anlage), €163,63714 Apr 2025: Neubau FWH Notzingen - Los 06 - PV-Anlage, €55,1343 Apr 2025: Los 416 PV-Anlage28 Oct 2024: Neubau Grundschule am Sportzentrum Haselünne: Photovoltaikanlage, €95,933

One dot per award in the month of the notice, sized by value, red when there was only one bid. Click a dot to open the notice.

The network around TAC-Solar

Contracting authoritiesNext door on the siteAmt Büsum-Wesselburen2Amt Büsum-Wesselburen: 2Schulverband Wesselburen1Schulverband Wesselburen: 1Stadt Haselünne1Stadt Haselünne: 1Gemeinde Notzingen1Gemeinde Notzingen: 1Land Berlin (Sondervermögen Immob…1Land Berlin (Sondervermögen Immobilien des Landes Berlin): 1Solarpraxis Engineering GmbH1Solarpraxis Engineering GmbH: 1TAC-Solar GmbH7 awards

Contracting authorities and neighbours from the award notices, planners from the office register, brands from the bills of quantities of the tender before the award. Figures are lots.

Competitors

Pro · 10 companies win the same trades with the same authorities
With count, location and latest award, each with a profile. See everything with Pro

Who wins with the 6 most frequent contracting authorities of this company in Electrical installations.

References: recently won

DateLotContracting authorityValueBids
21 Apr 2026Installation von Photovoltaikanlagen ggf. mit Photovoltaik-gekoppeltem Batteriespeichersystem für diverse von der BIM …Electrical installations · Source (Procurement portal)Land Berlin (Sondervermögen Immobilien des Landes Berlin)
14 Jul 2025BÜ_35 (PV-Anlage)Electrical installations · NoticeAmt Büsum-WesselburenSchleswig-Holstein€149,372
14 Jul 2025WSB_35 (PV-Anlage)Electrical installations · NoticeAmt Büsum-WesselburenSchleswig-Holstein€80,715
14 Jul 202534_VE35 (PV-Anlage)Electrical installations · NoticeSchulverband WesselburenSchleswig-Holstein€163,637
14 Apr 2025Neubau FWH Notzingen - Los 06 - PV-AnlageElectrical installations · NoticeGemeinde NotzingenBaden-Württemberg€55,13417
3 Apr 2025Los 416 PV-AnlageElectrical installations · NoticeLandratsamt Landkreis LeipzigSaxony13
28 Oct 2024Neubau Grundschule am Sportzentrum Haselünne: PhotovoltaikanlageElectrical installations · NoticeStadt HaselünneLower Saxony€95,93310

The 7 most recent of 7. All with Pro.

EU-wide awards 2006 to 2023

No EU-wide award under this name between 2006 and 2023.

Questions and answers

How many public contracts has TAC-Solar GmbH won?

TAC-Solar GmbH has received 7 contract awards from public tenders since 2024, most recently on 21 Apr 2026. The notices state a combined value of €544,791 (5 of 7 awards state a value). When the company won, there were 13.3 bids on average.

Which contracting authorities does TAC-Solar GmbH work for most often?

Most awards came from Amt Büsum-Wesselburen (2), Schulverband Wesselburen (1) and Stadt Haselünne (1). In total there are 6 contracting authorities.

In which trades does TAC-Solar GmbH win public contracts?

Most awards fall under the trade “Electrical installations” (7). The trade is assigned from the CPV code and the title of the lot.

In which German states is TAC-Solar GmbH active?

By region of the contract, most awards came from Schleswig-Holstein (3), Baden-Württemberg (1) and Lower Saxony (1).