General contractor in
Romanshorn

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

Companies

All 13 companies in Romanshorn

A. Somogyi AG Logo

A. Somogyi AG

Since 1981 · 1–10 empl.

A. Somogyi AG is an architecture and general contracting firm providing architectural services, project management and construction supervision. Its work includes single- and multi-family homes, industrial and commercial buildings, as well as conversions and renovations.

ArchitectArchitectureGeneral contracting
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #1
Projekt Bau-Contor AG Logo

Projekt Bau-Contor AG

Since 2020 · 1–10 empl.

Projekt Bau-Contor AG plans and delivers new-build, conversion and renovation projects. Its services also include client representation and construction project support, such as cost, execution and quality controls, as well as property valuations.

Building contractorNew constructionClient advisory / client representativeRenovations / conversions
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #2
Hafen Architektur AG Logo

Hafen Architektur AG

Since 2022 · 1–10 empl.4.3(6)

The core activity of Hafen Architektur AG is the provision of services in the field of architecture and construction management, including client consulting, planning, project management, construction management, execution planning and architecture. The company offers a wide range of services, from planning and design to monitoring of the construction phase, and specializes in the design of buildings, interior spaces and landscapes.

General contractorArchitectureSite managementProject development
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #3
Hartbau Group GmbH Logo

Hartbau Group GmbH

Since 2017 · 1–10 empl.4.0(1)

The core activity of the company 'Mind Solution' is the provision of psychotherapeutic services, particularly in the areas of: Treatment of concentration and attention disorders, Treatment of psychosomatic complaints and chronic pain, Treatment of tension headaches and migraines, Treatment of panic and anxiety disorders, Treatment of functional respiratory diseases, Psychovegetative stress and stress prophylaxis after stroke and heart attack. The company also offers diagnostics and therapy to identify and treat the causes of physical and mental illnesses.

Building contractorDiagnosticsTherapyTreatment of Concentration and Attention Disorders
ranQ Trust Score 3.7 out of 5.0, rated Solid, Rank #4
PG

Pajetta Group AG

Since 2008 · 1–10 empl.

General contractor
No score yet
SI

Swiss Immoo AG

Since 2014 · 1–10 empl.

General contractor
No score yet
MG

MAI Generalunternehmung GmbH

Since 2021 · 1–10 empl.

General contractor
No score yet
NL

NHN Liegenschaften GmbH

Since 2022 · 1–10 empl.

General contractor
No score yet
EG

EAMY GmbH

Since 2023 · 1–10 empl.

General contractor
No score yet
AS

AgroCover Swiss GmbH

Since 2024 · 1–10 empl.

General contractor
No score yet
SG

Solibau GmbH

Since 2025 · 1–10 empl.

General contractor
No score yet
LG

Luviva GmbH

Since 2025 · 1–10 empl.

General contractor
No score yet

General contractor in Romanshorn

13General contractorCommercial register (Zefix) · as of November 6, 2026
2022Median 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