Stäheli Partner AG Architekten ETH SIA

What Stäheli Partner AG Architekten ETH SIA does

Stäheli Partner AG Architekten ETH SIA is a privately held Swiss architecture firm headquartered in Frauenfeld, Thurgau, delivering full-service architecture — from concept and project planning through construction management — to residential, commercial, and public-sector clients across eastern Switzerland. The firm was founded in 1994 by Bruno Stäheli as Architekturbüro Bruno Stäheli, incorporated as an Aktiengesellschaft in 2017, and expanded its leadership in 2020 when Joëlle Thomas, Lena Stäheli, and Thomas Kolb joined Bruno Stäheli as partners to formalize succession. The team consists of ETH/ZFH-trained architects, a certified construction manager, trained drafters (Zeichner EFZ), and apprentices, with the core capability centered on integrated delivery rather than proprietary tooling.

The firm's commercial activity spans single-family and multi-family residential projects (e.g., the Hugelshofer Himalaya building, the Brunegg and Westfeld residential developments for institutional clients), commercial and hospitality work (Hotel Frauenfeld, Raiffeisen Frauenfeld 2025, Richterhaus Stettfurt 2025, Alte Poststrasse Matzingen 2025), and public-sector mandates (Primarschule Rietwies 1995, Oberstufe Reutenen, PSG Hüttwilen, APTK Weinfelden, Münsterlingen Houses U+K for Thurmed). The firm competes for public-sector work through architecture competitions and invited studies, and serves residential and commercial clients through direct commission and referral. Marketing is limited to a project portfolio and an Instagram channel (@arch.staeheli); there is no published pricing, no app or digital product distribution, and no public revenue disclosure.

The business model is professional-services based: custom, project-based architecture engagements with multi-year contract cadences and quote-based pricing, financed by retainers and milestone payments from property developers, commercial enterprises, municipalities, and healthcare real estate owners in the Thurgau and St. Gallen regions. Ownership remains with the four named partners; there is no external investment, no parent entity, and no subsidiary structure. Operating geographies are explicitly regional with no global footprint claim.

Name

Stäheli Partner AG Architekten ETH SIA

Legal name

Stäheli Partner AG Architekten ETH SIA

Website

https://arch-staeheli.ch

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

1–10 employees

Short description

Stäheli Partner AG is a privately held Swiss architecture firm in Frauenfeld, Thurgau, delivering full-service design, project planning, and construction management for residential, commercial, and public-sector clients across eastern Switzerland.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (541310), Architectural Services (54131)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Residential Design-Build & Renovation-Integrated Builders (IMAFABAE)

akta.pro secondary industry

Office & Corporate Building Construction (IMAFACAA)

Keywords

• Architectural design services
• Residential architecture
• Commercial architecture
• Public buildings design
• Construction management

Headquarters

HQ city

Frauenfeld

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Architecture Services: Project-based architecture services including conception, project planning, and realization for residential (single-family homes, multi-family houses), commercial, and public buildings. Full service from design through construction management.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels1 record

Core offering

Stäheli Partner AG is a Swiss architecture firm delivering complete architecture services — conception, design, project planning, and construction management — for residential (single-family homes, multi-family houses), commercial (offices, hotels, mixed-use), and public buildings (schools, healthcare, community facilities). The firm also participates in architectural competitions and commissioned studies, offering an integrated team of architects, construction managers, and drafters across the full project lifecycle.

Product overview

Stäheli Partner AG Architekten ETH SIA is a Swiss architecture firm offering comprehensive architectural services across three main categories: Residential (Wohnen), Commercial (Gewerbe), and Public Buildings (Öffentliche Bauten). Their full-service offering spans from concept and design through to project management and construction realization, covering new construction, renovation, and conversion projects. The firm also participates in architectural competitions and commissioned studies. Founded in 1994 and incorporated as AG in 2017, the company is based in Frauenfeld, Switzerland.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Architecture Services (Wohnen) Design, planning, and realization services for single-family homes (EFH), multi-family houses (MFH), residential complexes, renovations, and conversions, delivered for property developers and individual homeowners in eastern Switzerland.
• Commercial Architecture Services (Gewerbe) Architecture services for commercial buildings including office buildings, hotels, mixed-use residential-commercial developments, retail spaces, and industrial buildings, serving enterprise clients and investors.
• Public Buildings Architecture (Öffentliche Bauten) Architecture services for public-sector buildings including schools, healthcare facilities, community buildings, and institutions, frequently delivered through architecture competitions and public procurement.
• Architecture Competitions and Studies (Wettbewerbe & Studienaufträge) Participation in architectural competitions and commissioned studies (Studienaufträge) for various building projects, leveraging the firm's expertise in competition procedures and public procurement processes.

Named customers10 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record, tiered minor.

• USUS LandschaftsarchitektenminorStrategic or Co-development PartnerCollaboration on Studienauftrag Altnau (2022) for residential development project Oberdorf Altnau. Landscape architecture partnership.
• Chavez Biedermann LandschaftsarchitektenminorStrategic or Co-development PartnerCollaboration on Zentrum Berg area development project (2022) in partnership with Gemeinde Berg TG and BEWOGE Genossenschaft.
• Thurmed Immobilien AGminorStrategic or Co-development PartnerReal estate owner and client for multiple healthcare facility projects including geriatric psychiatric day clinic in Weinfelden.
• Hugelshofer Immobilien AGminorStrategic or Co-development PartnerClient for Himalaya residential-commercial building project in Frauenfeld (2009-2011).
• thurmed Immobilien AGminorStrategic or Co-development PartnerClient for psychiatric clinic Münsterlingen renovation project (2015-2020) including Houses U and K.
• Schulstiftung GlariseggminorStrategic or Co-development PartnerCompetition organizer for open project competition for extension and renovation of Schulhaus Schulstiftung Glarisegg (2020).
• Space Clip ArchitectsminorStrategic or Co-development PartnerInterior architecture collaboration for Kyoto apartment renovation project.

Scale indicators2 records

Recent moves8 records

Expansion highlights5 records

Market position

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/arch.staeheli
• LinkedInlinkedin.com/company/st%C3%A4heli-partner-ag-architekten-eth-sia

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stäheli Partner AG Architekten ETH SIA