General Contractors in
Rorschach

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

Companies

All 12 companies in Rorschach

Starhaus AG Logo

Starhaus AG

Since 2014 · 11–20 empl.5.0(4)

The Starhaus AG is a general contractor based in Rorschach, specializing in the planning, design and construction of residential buildings. In addition to project development and architectural planning, the company also provides support with financing issues and questions related to building land.

Architecture FirmsConstruction consulting and site supervisionHome buildingProject development
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #1
Niederer Ralph Generalunternehmer AG Logo

Niederer Ralph Generalunternehmer AG

Since 2005 · 1–10 empl.

The core activity of N-R-G (Niederer Ralph Generalunternehmer AG) is general contracting in the field of real estate development and renovation, including partial renovation, comprehensive renovation and replacement new construction. The company offers services such as valuation, consulting, development, realization, marketing and management of real estate.

General ContractorsGeneral contractingRenovationsOverall concepts for construction projects
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
Bendoraitis Immobilien Logo

Bendoraitis Immobilien

Since 2025 · 1–10 empl.

Bendoraitis Immobilien is a construction and renovation company offering construction project management, building refurbishment and related finishing services. Its range includes dry construction, painting, flooring, installation work, demolition, timber construction, and electrical and sanitary services.

Construction & Project ManagementConstruction Project ManagementBuilding RenovationInstallation Services
No score yetGI

Gebimo Immobilien AG

Since 2014 · 1–10 empl.

General Contractors
No score yetRE

Royal Effect GmbH

Since 2014 · 1–10 empl.

Construction & Project Management
No score yetMG

Mobecg GmbH

Since 2015 · 1–10 empl.

General Contractors
No score yetSB

Stefani Bau GmbH

Since 2018 · 1–10 empl.

General Contractors
No score yetSB

SWITCH BAU GmbH

Since 2021 · 1–10 empl.

Building Construction
No score yetAB

A.I.G. Bau GmbH

Since 2025 · 1–10 empl.

Construction & Project Management
No score yetVG

Valis Generalunternehmung AG

Since 2026 · 1–10 empl.

General Contractors
No score yetSB

Shero Bau GmbH

Since 2026 · 1–10 empl.

General Contractors
No score yetAP

Awiroc Projekt AG

Since 2026 · 1–10 empl.

Construction & Project Management
No score yet

General Contractors in Rorschach

12General ContractorsCommercial register (Zefix) · as of October 10, 2026
2021Median year of registrationCommercial register (Zefix) · as of October 10, 2026
550in the Canton of St. GallenCommercial register (Zefix) · as of October 10, 2026
9,216in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

General Contractors in the region

Point size by number of companies per place.

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

Largest places

St. Gallen82Wil SG37Buchs SG29Widnau17Altstätten SG15Rheineck14Jona14Rapperswil SG13Flawil12Zuzwil SG11
Industry axis

General Contractors in other places

General Contractors across Switzerland
St. Gallen82Wil SG37Buchs SG29Widnau17Altstätten SG15Rheineck14Jona14Rapperswil SG13Flawil12Zuzwil SG11Goldach10Gossau SG10Wattwil10Uznach9Au SG8Oberuzwil8Wittenbach7Niederuzwil7Eschenbach SG7Staad SG6Sevelen6Sargans6Mörschwil6Mels6Grabs6Uzwil6Rebstein5Thal5Engelburg5Bazenheid5

By canton

Canton of Zurich1,206Canton of Vaud836Canton of Ticino804Canton of Bern705Canton of Geneva615Canton of Aargau562Canton of St. Gallen550Canton of Fribourg464Canton of Lucerne447Canton of Valais445Canton of Zug404Canton of Schwyz342Canton of Thurgau334Canton of Grisons291Canton of Basel-Country258Canton of Solothurn213Canton of Neuchâtel122Canton of Appenzell Outer Rhodes90Canton of Nidwalden75Canton of Schaffhausen68Canton of Glarus50Canton of Obwalden49Canton of Jura41Canton of Appenzell Inner Rhodes21Canton of Uri15
Place axis

Other industries in Rorschach

All companies in Rorschach
Restaurants59Property Management36Management Consulting31Fiduciary Offices28Cultural & Educational Organizations26Hair Salons23Holding Companies23Real Estate Project Development23IT Consulting & Services20Real Estate Brokerage20Online Shops20Advertising Agencies18Wholesale - General Specialty Trade18NGOs & NPOs17Retail - Textiles & Clothing17Recruitment & HR Consulting16Technical Consulting & Engineering16Painting & Plastering16Coaching & Personal Development15Trade Fair & Event Organizers15Catering15Beauty Salons14Retail - General Specialty Trade14Other Service Industries13Software Development13Construction & Project Management12Facility Management & Cleaning12Automotive & Vehicle Trade12Flooring & Tiling11Building Maintenance10Electrical Planning & Installation10Plumbing & Building Services10Financial Services10Interior Construction9Solar & Photovoltaics9Retail - Food & Luxury Items9Clubs, Bars & Event Venues9Repair of Consumer Goods8Insurance Brokerage & Consulting8Architecture Firms7Horticulture & Landscaping7Joinery7Metal Construction7Continuing Education Institutes7Retail - Bicycles & Sports Equipment7Photography6Building Construction6Tattoo & Piercing Studios6