What Schnewlin + Küttel does

S+K Bauingenieure AG (also referenced as Schnewlin + Küttel) is a privately-held Swiss civil engineering consultancy headquartered in Winterthur, Canton of Zurich. The firm operates across three service pillars: Hochbau (structural engineering for residential, commercial, and agricultural buildings), Tiefbau (civil infrastructure including roads, drainage, sewer systems, streams, and pathway works), and Diverses (specialized projects such as cemetery facilities, water basin restoration, demolition, and environmental remediation). The firm employs approximately six people, including SIA/USIC-certified civil engineers, and delivers an integrated full-service model covering project development, tendering, execution planning, specialist construction management (Fachbauleitung), and site supervision.

Technical competencies center on complex urban construction sites and include construction pit engineering with wellpoint dewatering, bored pile foundations, steel construction, structural concrete works, and specialized gas- and water-tight sealing for fermentation facilities. A 2026 capability highlight is the adoption of CO2-neutral KLARK concrete for the Volketswil energy center, alongside ongoing work on gas-tight structural elements for the Schlattingen biomass utilization plant. The firm holds ISO 9001 (quality management) and ISO 14001 (environmental management) certifications, both successfully recertified in March 2026. Operations are exclusively domestic, concentrated in the Winterthur and greater Zurich region, with active projects across Winterthur, Zürich, Volketswil, Kloten, Bauma, Dinhard, Fehraltorf, Attikon, and Marthalen.

The business model is project-based engineering consultancy. Revenue is generated through direct contracts with private developers, enterprises, and public-sector clients, with pricing quoted per project and not publicly disclosed. The customer mix spans private foundations (Dr. Stephan à Porta-Stiftung), utilities (Energie 360°), retail (ALDI Suisse SA), municipal government (Stadt Winterthur Tiefbauamt), and airport infrastructure (Flughafen Zürich AG). Distribution is direct with no intermediary channels; marketing is conducted through the firm's project portfolio website (sking.ch), LinkedIn, and professional referrals from architects and planning partners. The firm is independently owned under the Swiss AG (Aktiengesellschaft) legal form, with no disclosed parent company, subsidiaries, institutional investors, or funding history.

Name

Schnewlin + Küttel

Legal name

S+K Bauingenieure AG

Website

https://sking.ch

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

S+K Bauingenieure AG is a Winterthur-based Swiss civil engineering consultancy providing integrated structural, infrastructure, and specialized construction services to public and private clients across the greater Zurich region of Switzerland.

Ownership category

akta.pro rank

Product category

Civil Engineering Services

NAICS

Engineering Services (541330)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

Keywords

• Civil engineering services
• Structural engineering
• Infrastructure construction
• Construction management
• Foundation engineering

Headquarters

HQ city

Winterthur

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations

Distribution channels1 record

Marketing channels3 records

Core offering

S+K Bauingenieure AG is a SIA/USIC-certified civil and structural engineering consultancy based in Winterthur, Switzerland. The firm provides integrated engineering services spanning project design, tendering, execution planning, and specialist construction management across residential developments, commercial buildings, municipal infrastructure (roads, drainage, waterways), energy facilities (biomass plants, energy centers), and specialized demolition/remediation projects. Services are organized into three categories: Hochbau (structural engineering), Tiefbau (civil infrastructure), and Diverses (specialized projects such as cemetery facilities, water basin restoration, and contaminated site remediation).

Product overview

S+K Bauingenieure AG is a civil engineering firm (Bauingenieure SIA/USIC) based in Winterthur, Switzerland, offering a unified portfolio of engineering services organized into three main areas: Hochbau (structural engineering), Tiefbau (civil infrastructure), and Diverses (specialized projects). The company provides full-service engineering from project design and planning through to execution management and site supervision, serving both public and private clients across residential, commercial, agricultural, and infrastructure sectors. Projects range from residential housing developments and energy centers to road construction, water management systems, and specialized facilities like biomass plants and cemetery infrastructure.

Differentiator

Problem solved

Functional benefit

Named customers5 records

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Five partnerships are on record, tiered core and supporting.

• Rothen Architektur GmbH, WinterthurcoreStrategic or Co-development Partner · 1 January 2026
• innoraum ag, FrauenfeldcoreStrategic or Co-development Partner · 1 January 2026
• Dr. Heinrich Jäckli AG, WinterthursupportingImplementation/ SI/ Consulting Partner · 1 January 2026
• Bucher Partner Architekten AG, WinterthursupportingStrategic or Co-development Partner · 1 January 2026
• Schindler & Scheibling AGsupportingImplementation/ SI/ Consulting Partner · 1 January 2026

Recent moves5 records

Expansion highlights4 records

Direct peers

• WaltGalmarini AG: Zurich-based structural and civil engineering consultancy focused on complex buildings, bridges, and infrastructure — directly comparable to S+K's Hochbau/Tiefbau portfolio in the same regional market.
• Dr. Lüchinger + Meyer Bauingenieure AG: Zurich-based structural engineering consultancy serving residential, commercial, and infrastructure clients — a directly comparable boutique in the same Swiss-German market as S+K.
• Bänziger Partner AG: Swiss structural engineering consultancy serving building and infrastructure clients; comparable mid-sized boutique offering similar Hochbau/Tiefbau services to S+K.
• Conzett Bronzini Partner AG: Swiss structural engineering firm specializing in bridge and building construction with comparable SIA/USIC credentials and overlapping service scope to S+K's structural and civil offering.
• Schnetzer Puskas Ingenieure AG: Basel/Zurich structural engineering consultancy with comparable SIA-certified civil engineering offering across residential, commercial, and infrastructure projects.
• Henauer Gugler AG: Swiss engineering consultancy focused on structural engineering and building physics, providing comparable services to S+K for building and infrastructure clients across Switzerland.
• ING PLUS AG: Swiss engineering consultancy offering structural and civil engineering services for buildings and infrastructure — a comparable regional boutique operating in adjacent Swiss-German markets.

Broad incumbents

• Gruner AG: Large Swiss multidisciplinary engineering group with broad services in structural, civil, and environmental engineering — competes with S+K on the same project types but at significantly larger scale and geographic footprint.
• Basler & Hofmann AG: Established Swiss engineering consultancy with full-service structural, civil, and infrastructure capabilities; competes with S+K on larger institutional projects in the same regional market.
• Amstein + Walthert AG: Major Swiss engineering firm with broad building services and structural capabilities; comparable on building projects but operates at significantly larger scale than S+K.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/schnewlin-k%C3%BCttel

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

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 Schnewlin + Küttel