Specialized Construction Activities in
Olten

7 companies in Specialized Construction Activities based in Olten — name and year of registration from the commercial register. The list below shows them all.

Companies

All 7 companies in Olten

IUB Engineering AG Logo

IUB Engineering AG

Since 2006 · 101–500 empl.4.5(2)

IUB Engineering AG is a planning and engineering firm providing overall planning services for infrastructure projects, with expertise in hydropower plants, underground construction, water engineering and civil engineering. Its services include design and realization of electromechanical equipment, client support and project management, studies, expert assessments and BIM.

Specialized Construction ActivitiesIntegrated planning and engineering services for infrastructure facilitiesProject management and client supportStudies and concepts
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #1
WW

Willi Wyss Ofenbau Cheminéebau Plattenbeläge

Since 1987 · 1–10 empl.

Specialized Construction Activities
No score yetK+

Keiser + Schmid Armierungen GmbH

Since 1997 · 1–10 empl.

Specialized Construction Activities
No score yetKB

Koller Building Systems AG

Since 2001 · 1–10 empl.

Specialized Construction Activities
No score yetHU

H. Uhr AG

Since 2007 · 1–10 empl.

Specialized Construction Activities
No score yetAS

Allround Service Constantin

Since 2024 · 1–10 empl.

Specialized Construction Activities
No score yetL&

Lume & Schrube GmbH

Since 2025 · 1–10 empl.

Specialized Construction Activities
No score yet

Specialized Construction Activities in Olten

7Specialized Construction ActivitiesCommercial register (Zefix) · as of October 10, 2026
2006Median year of registrationCommercial register (Zefix) · as of October 10, 2026
124in the Canton of SolothurnCommercial register (Zefix) · as of October 10, 2026
3,932in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

Specialized Construction Activities in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of October 10, 2026

Largest places

Grenchen8Dulliken6Schönenwerd5Däniken SO5Solothurn5
Industry axis

Specialized Construction Activities in other places

Specialized Construction Activities across Switzerland
Grenchen8Dulliken6Schönenwerd5Däniken SO5Solothurn5

By canton

Canton of Zurich559Canton of Vaud396Canton of Bern366Canton of Aargau339Canton of St. Gallen281Canton of Lucerne201Canton of Geneva201Canton of Valais192Canton of Ticino156Canton of Fribourg153Canton of Thurgau138Canton of Schwyz133Canton of Solothurn124Canton of Zug120Canton of Basel-Country111Canton of Grisons100Canton of Neuchâtel66Canton of Schaffhausen35Canton of Obwalden34Canton of Glarus34Canton of Jura33Canton of Appenzell Outer Rhodes31Canton of Nidwalden30Canton of Uri18Canton of Appenzell Inner Rhodes11
Place axis

Other industries in Olten

All companies in Olten
Property Management111Restaurants82Holding Companies79Management Consulting68Real Estate Brokerage61IT Consulting & Services52Technical Consulting & Engineering46Real Estate Project Development45Architecture Firms43Software Development43Fiduciary Offices37Hair Salons35Coaching & Personal Development34Advertising Agencies34Facility Management & Cleaning30Recruitment & HR Consulting29Automotive & Vehicle Trade26Beauty Salons24Online Shops24Retail - Textiles & Clothing24General Contractors23Construction & Project Management21Catering21Retail - Food & Luxury Items20Other Service Industries19Trade Fair & Event Organizers19Cultural & Educational Organizations18Continuing Education Institutes17NGOs & NPOs16Auto Repair Shops16Retail - General Specialty Trade16Electrical Planning & Installation15Financial Services15Insurance Brokerage & Consulting14Wholesale - General Specialty Trade14Clubs, Bars & Event Venues14Professional & Trade Associations13Law Firms & Notary Offices13Painting & Plastering13Non-Medical Healthcare Professions12Physiotherapy12Psychiatry & Psychotherapy12Logistics & Transport Companies12Mechanical Engineering Industry11Interior Construction10Printing Companies10Wholesale - Beverages & Spirits10Photography9