General Contractors in
Solothurn

13 companies in General Contractors based in Solothurn — name and year of registration from the commercial register. The list below shows them all.

Companies

All 13 companies in Solothurn

baderpartner ag planen bauen nutzen Logo

baderpartner ag planen bauen nutzen

Since 1998

ArchitectureBuilding Renewal & RefurbishmentGeneral Planner
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BauAllianz AG Logo

BauAllianz AG

Since 2000

Business managementSuccession solutionProject development
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Haller Architekten GmbH Logo

Haller Architekten GmbH

Since 2014

ArchitectureConstruction Management
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Reanova GmbH Logo

Reanova GmbH

Since 2023

Planning and ArchitectureBuilding Services EngineeringInterior and Exterior Construction
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AG

Alphons Glutz-Blotzheim AG

Since 1915

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CA

Casa Ambiente AG

Since 1990

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WB

Walo Bertschinger AG Bern

Since 1998

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GE

Giger Engineering GmbH

Since 2012

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WG

WABO GmbH

Since 2015

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SB

SOA Bau Generalunternehmen, Inhaberin Devarajah

Since 2020

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HI

Haltenegg Immobilien AG

Since 2022

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SG

SOA GU & Immo GmbH

Since 2025

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SG

SolFloor GmbH

Since 2026

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General Contractors in Solothurn

13General ContractorsCommercial register (Zefix) · as of September 23, 2026
2014Median year of registrationCommercial register (Zefix) · as of September 23, 2026
213in the Canton of SolothurnCommercial register (Zefix) · as of September 23, 2026
9,178in SwitzerlandCommercial register (Zefix) · as of September 23, 2026
Locations

General Contractors in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of September 23, 2026

Largest places

Olten23Grenchen18Balsthal9Feldbrunnen7Härkingen6Egerkingen6Dornach6Gerlafingen6Biberist6Schönenwerd5
Industry axis

General Contractors in other places

General Contractors across Switzerland
Olten23Grenchen18Balsthal9Feldbrunnen7Härkingen6Egerkingen6Dornach6Gerlafingen6Biberist6Schönenwerd5Trimbach5Wangen B. Olten5Kappel SO5Derendingen5Zuchwil5Lohn-Ammannsegg5

By canton

Canton of Zurich1,197Canton of Vaud835Canton of Ticino803Canton of Bern705Canton of Geneva617Canton of Aargau558Canton of St. Gallen543Canton of Fribourg468Canton of Lucerne442Canton of Valais437Canton of Zug403Canton of Schwyz341Canton of Thurgau330Canton of Grisons292Canton of Basel-Country257Canton of Solothurn213Canton of Neuchâtel120Canton of Appenzell Outer Rhodes91Canton of Nidwalden76Canton of Schaffhausen68Canton of Glarus50Canton of Obwalden48Canton of Jura37Canton of Appenzell Inner Rhodes21Canton of Uri15
Place axis

Other industries in Solothurn

All companies in Solothurn
Holding Companies96Management Consulting92Property Management89Restaurants87IT Consulting & Services78Architecture Firms59Real Estate Project Development57Fiduciary Offices56Coaching & Personal Development50Software Development50Real Estate Brokerage45Advertising Agencies44Hair Salons43Beauty Salons31NGOs & NPOs30Cultural & Educational Organizations30Technical Consulting & Engineering29Continuing Education Institutes29Recruitment & HR Consulting27Catering25Trade Fair & Event Organizers23Psychiatry & Psychotherapy22Retail - Textiles & Clothing22Clubs, Bars & Event Venues21Retail - General Specialty Trade20Other Service Industries18Food Processing17Retail - Food & Luxury Items17Construction & Project Management16Sports & Recreation Instruction16Naturopathic Clinics16Non-Medical Healthcare Professions16Physiotherapy16Medical Technology Industry16Web Portals & Platform Companies16Wholesale - General Specialty Trade16Online Shops15Retail - Bicycles & Sports Equipment15Painting & Plastering14Solar & Photovoltaics14Financial Services14Hotels14Administrative Services13Law Firms & Notary Offices13Pension Funds13Plumbing & Building Services12General Practitioner Clinics12IT Infrastructure & Cloud12