General contractor in
Bischofszell

6 companies in General contractor based in Bischofszell — name and year of registration from the commercial register. The list below shows them all.

Companies

All 6 companies in Bischofszell

Koch Generalunternehmen AG Logo

Koch Generalunternehmen AG

Since 1972 · 101–500 empl.

Koch Generalunternehmen AG generates renewable energy from hydropower and maintains hydroelectric power plants. It also develops, rents out and maintains commercial premises.

General contractorBusiness parkOffice and commercial spacesAvailable rental spaces
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #1
Ralph Lehmann GmbH Logo

Ralph Lehmann GmbH

Since 2001 · 1–10 empl.

Ralph Lehmann GmbH is a joinery business specialising in kitchens and interior fitting. It makes solid wood tables, chairs and furniture, and carries out carpentry work.

General contractorKitchen constructionInterior fit-outSolid wood tables
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
Milan Bau Art GmbH Logo

Milan Bau Art GmbH

Since 2023 · 1–10 empl.5.0(6)

Milan Bau Art GmbH is a general and total contractor specialising in the renovation and conversion of existing buildings. Its services include planning, building permits, site management and construction, as well as heritage-building renovation, roof conversions, barn conversions, interior fit-outs and fire protection work.

ArchitectConstruction planning and executionArchitecture and visualisation servicesConstruction management and building contractor work
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #3
BAU-ART Giacchino GmbH Logo

BAU-ART Giacchino GmbH

Since 2008 · 1–10 empl.1.0(2)

General contractor
ranQ Trust Score 3.5 out of 5.0, rated Solid, Rank #4
NI

New Immoinvest AG

Since 2018 · 1–10 empl.

General contractor
No score yet
SP

Start Projekte GmbH

Since 2021 · 1–10 empl.

General contractor
No score yet

General contractor in Bischofszell

6General contractorCommercial register (Zefix) · as of November 6, 2026
2018Median year of registrationCommercial register (Zefix) · as of November 6, 2026
332in the Canton of ThurgauCommercial register (Zefix) · as of November 6, 2026
9,195in SwitzerlandCommercial register (Zefix) · as of November 6, 2026
Locations

General contractor in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 6, 2026