What Baumann Koelliker does

Baumann Koelliker Gruppe is a Swiss, family-owned electrical installation group headquartered in Zürich, founded in 1868, and operating today through 16 independently managed but wholly owned subsidiary companies. The group employs approximately 1,250 specialist workers and trains 280-300 apprentices, with operations concentrated in German-speaking Switzerland across the cantons of Zürich, Thurgau, Aargau, Schaffhausen, Zug, and the Fricktal and Freiamt regions. Its portfolio spans the full electrical value chain: residential, commercial, and industrial installation; service and maintenance; switchgear manufacturing (Beltech Schaltanlagen AG, Bolanz AG); SECO-accredited safety inspection (Electro Inspect AG); and emerging offerings in building automation (KNX, Loxone Platinum partnership via Miesch Elektro AG), photovoltaic systems, and EV charging infrastructure.

The group's revenue model is project-based and service-oriented, generated almost exclusively through direct field sales and service delivery by its 16 regional subsidiaries. Aggregate disclosed subsidiary revenues total approximately CHF 140.8M, led by Baumann Koelliker AG (CHF 33M) and Ellenbroek Hugentobler AG (CHF 30M). Customers are served through local offices with a 24/7 emergency hotline, and the group markets primarily through its corporate website, a dedicated job portal, and organic social channels. Notable enterprise references include SBB, Zurich Airport, Thurgauer Kantonalbank, Santander, and luxury watchmakers Breitling and Hublot, alongside large residential and SMB volume distributed across the regional brands. The group has won the Swiss Arbeitgeber Award twice (2018, 2025), and ownership has remained across three family generations without external investors.

Name

Baumann Koelliker

Legal name

Baumann Koelliker Management AG

Website

https://baumann-koelliker-gruppe.ch

Company type

Private

Founded year

1868

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Baumann Koelliker Gruppe is a Swiss, family-owned electrical installation group operating 16 regional subsidiaries across German-speaking Switzerland, delivering installation, maintenance, switchgear manufacturing, safety inspection, and smart-building automation services to residential, commercial, and industrial clients.

Ownership category

akta.pro rank

Product category

Electrical Installation Services

NAICS

Electrical Equipment Manufacturing (33531), Switchgear and Switchboard Apparatus Manufacturing (335313), Power, Distribution, and Specialty Transformer Manufacturing (335311), Engineering Services (541330), Architectural, Engineering, and Related Services (5413)

SIC

Electrical Industrial Apparatus (3620), Switchgear & Switchboard Apparatus (3613), Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electric Lighting & Wiring Equipment (3640)

akta.pro primary industry

Outlet, Switch, GFCI/AFCI & Receptacle Installation (HSAOADAE)

akta.pro secondary industries

Protection, Control & SCADA/Automation Installation (Relay Panels, RTUs) (IMAFAHAF), Overhead & Underground Collection System Construction (MV/HV Lines, Duct Banks) (EUAEADAG), Power Plant Electrical Systems EPC (Switchyard, Transformers, Protection & Controls) (EUAEAAAM), Risk, Controls & Governance (GRC) Platforms (FSAFAOAG)

Keywords

• Electrical installation services
• Building automation systems
• Switchgear manufacturing
• Photovoltaic installation
• Electrical safety inspection

Headquarters

HQ city

Zürich

HQ country

Switzerland

HQ region

Europe

Offices24 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Electrical Installation Services: Core revenue from electrical installation services for residential, commercial, and industrial buildings, including new builds, renovations, and upgrades. Revenue is project-based and service-oriented, generated through the 16 subsidiary companies.
2. Service and Maintenance: Ongoing maintenance, repair, and service contracts for electrical installations and building systems
3. Switchgear Manufacturing: Design and manufacture of switchgear panels for residential, industrial, commercial and public institutions, plus control systems for machines and heat pumps (Beltech, Bolanz)
4. Renewable Energy Systems: Photovoltaic installations, battery storage, and solar solutions
5. Electrical Safety Inspection: SECO-accredited inspection and safety certification services for electrical installations (Electro Inspect AG)
6. Building Automation and Smart Home: Building automation systems including KNX and Loxone programming and commissioning

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Baumann Koelliker Gruppe is a Swiss family-owned group of 16 regionally anchored electrical installation companies that design, install, maintain, and inspect electrical systems for residential, commercial, industrial, and public-sector buildings. The portfolio covers low- and high-current installations, building automation (KNX/Loxone), photovoltaic and e-mobility infrastructure, fiber optic networks, custom switchgear manufacturing, and SECO-accredited electrical safety inspection.

Product overview

Baumann Koelliker Gruppe operates as a multi-subsidiary electrical installation services company consisting of 16 independent companies under Baumann Koelliker Management AG. The group offers comprehensive electrical services across residential, commercial, industrial, and public sectors. The portfolio includes: Baumann Koelliker AG (largest unit, building technology/fiber optics/renewable energies), Beltech/Bolanz (switchgear systems), Brupbacher Gatti/Bütler/De Boni (electrical installations), Electro Inspect (inspection/safety services), Ellenbroek Hugentobler (network construction), Glattal Installationen (commercial projects), Haupt + Studer (high-voltage/telematics), Miesch (Loxone building automation), Ruther/Stadler/Wenger + Wirz (regional electrical services), and Elektro M + C Zürich (full-service installations). The Smart Energy Group unifies these offerings under an intelligent building management approach. As a services company rather than a software product vendor, no public API or SaaS products are offered.

Differentiator

Problem solved

Functional benefit

Products and services

• Baumann Koelliker AG - Electrical Installation Services Comprehensive electrical installation, building technology, fiber optics, and renewable energy services for residential, commercial, and industrial customers across all districts of Zürich and beyond. Operates with 250 employees and reports CHF 33 million revenue.
• Beltech Schaltanlagen AG - Switchgear Manufacturing Designs and constructs innovative switchgear systems for residential, industrial, commercial, and public institution customers. Specializes in control systems for machines and heat pumps. Based in Muri with 38 employees and CHF 6 million revenue.
• Bolanz AG - Switchgear Manufacturing Develops and manufactures switchgear for buildings, commerce, and industry, complemented by individual control solutions and comprehensive switchgear engineering expertise. Based in Neuhausen with 13 employees and CHF 1.8 million revenue.
• Brupbacher Gatti AG - High and Low Current Installations Specializes in high-current, low-current, and lighting installations for customers on the left bank of Lake Zürich. Established since 1893, operates two locations (Horgen, Wädenswil) with 76 employees and CHF 11 million revenue.
• Bütler Elektro Telecom AG - Electrical Installations, Building Technology, Photovoltaics Provides electrical installations, building technology, and photovoltaic systems across three locations in the Freiamt region. Operates with 80 trained professionals, 111 employees, and CHF 14 million revenue.
• De Boni Elektro AG - Regional Electrical Installations Electrical installation company active for 50 years in the Zürcher Oberland region with a strong reputation in building technology and renewable energies. Based in Hinwil with CHF 7 million revenue.
• Electro Inspect AG - SECO-Accredited Electrical Safety Inspection Specializes in inspection and safety of electrical installations. One of few companies in Switzerland officially accredited by SECO for this purpose. Operates six locations across German-speaking Switzerland with CHF 2 million revenue.
• Elektro M + C Zürich AG - Full-Spectrum Electrical Services Provides full-spectrum electrical services including installation, measurement, service, and maintenance, including emergency support. Known for customized solutions tailored to customer needs in Zürich.
• Ellenbroek Hugentobler AG - Canton Thurgau Electrical Services Leading company in Canton Thurgau for electronic installations, network construction, and building technology. Operates four locations (Frauenfeld, Kreuzlingen, Romanshorn, Weinfelden) with CHF 30 million revenue.
• Glattal Installationen AG - Commercial Electrical Projects Specializes in demanding electrical installation projects in Zürich North, particularly in gastronomy, hospitality, commercial, office fit-outs, and new construction. Based in Glattbrugg with CHF 8 million revenue.
• Haupt + Studer AG - High-Voltage and Telematics Leading company in the Limmattal region specializing in high-voltage installations and telematics, with focus on developing and successfully implementing new solutions for customers. Based in Schlieren.
• Käser AG - Regional Electrical Installations Quality-focused electrical installation company since 1916 with broad positioning across locations in Olten and Aarwangen. Approaches projects proactively and thoughtfully with CHF 15 million revenue.
• Miesch Elektro AG - Loxone Smart Building Automation Passionate about intelligent solutions in building technology. One of the first Platinum Partners of Loxone Switzerland, offering sustainable building automation installed by intelligent specialists. Based in Eschlikon with CHF 3 million revenue.
• Ruther AG - Regional Electrical Installations Rooted in the Fricktal region, providing electrical installations with a long-term customer focus, known for experience, enthusiasm, and commitment. Based in Möhlin with CHF 10 million revenue. Leadership transitioning from Raymond Keller to Fabrice Schreiber end of May 2026.
• Stadler AG - Traditional Zug Electrical Installations Traditional Zug electrical installation company that has been successfully operating since 1892, known for thoughtful, professional, and engaged approach for every assignment.
• Wenger + Wirz AG - Schaffhausen Regional Leader Number 1 in the Schaffhausen region with 130 employees across three locations (Diessenhofen, Stein am Rhein, Schaffhausen). Founded over 120 years ago with concentrated knowledge in quality, reliability, and friendliness.

Named customers15 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Loxone SchweizcoreTechnology or IntegrationMiesch Elektro AG is one of the first Platinum Partners of Loxone Schweiz, specializing in intelligent building automation solutions. This partnership enables the delivery of sustainable, smart building management systems.
• Swiss HelicopterminorStrategic or Co-development PartnerCollaborated with Ellenbroek Hugentobler AG on a candelabra installation project for a football field in Kirchberg Sonnmatt. Swiss Helicopter provided helicopter services to set 10 candelabras, avoiding damage to the natural turf while speeding up installation.
• Elektron AGminorStrategic or Co-development PartnerElektron AG collaborated with Ellenbroek Hugentobler AG on a candelabra installation project, contributing to the successful delivery of the network cabling and lighting installation.
• Solarmarkt Aarau GmbHminorStrategic or Co-development PartnerSolarmarkt Aarau GmbH partnered with Käser AG on a solar facade project in Aarau, installing 350 frameless modules weighing 12 tonnes, integrating photovoltaic technology as architectural design.

Scale indicators16 records

Recent moves6 records

Expansion highlights5 records

Others

• Loxone Electronics GmbH: Austrian smart-building automation platform vendor — not a direct competitor but a strategic technology partner (via Miesch Elektro Platinum partnership) whose platform BK deploys and resells across Swiss residential and commercial projects.

Broad incumbents

• ABB Schweiz AG (Smart Buildings/Installation Products): Swiss-headquartered global technology company producing switchgear, protection and building-automation products — relevant incumbent on the supply/equipment side that BK installs and integrates.
• Bouygues Energies & Services Schweiz AG: Swiss subsidiary of French group providing multi-technical building services, including electrical installation, building automation and renewable energy — comparable on services though with broader geographic and segment reach.
• BKW Building Solutions AG: Swiss building technology and energy solutions arm of BKW Group, covering electrical installation, photovoltaics, EV charging and building automation — overlapping with BK's renewable energy and smart building service lines.
• VINCI Energies Schweiz (Actemium/Axians): Swiss arm of VINCI's energy and digital services division, providing electrical installation, automation and infrastructure solutions across industries — broader portfolio but directly competes for industrial and infrastructure electrical work.
• Schneider Electric Schweiz AG: Global energy management and automation provider whose switchgear, protection and KNX-aligned offerings overlap with BK's switchgear manufacturing (Beltech, Bolanz) and building-automation business.

Direct peers

• Etavis AG: Swiss electrical services and building-automation specialist under the Equans (Bouygues) group, offering installation, KNX/smart building and renewable energy services — directly comparable to BK's automation and renewable offerings.
• Amstein + Walthert AG: Swiss engineering services firm focused on building technology, energy and electrical engineering consulting/planning — comparable to BK's engineering and building-automation capabilities, with overlap on KNX/smart-building projects.
• Burkhalter Holding AG: Switzerland's largest listed electrical engineering contractor (~CHF 2.6B revenue) providing installation, building technology, switchgear and switchboard services to residential, commercial and industrial clients across Switzerland — directly comparable to BK's core offering and scale-model.
• csg Gruppe AG: Swiss electrical services group serving residential, commercial and industrial customers with installations, building automation and renewable energy — closely aligned with BK's vertically integrated regional model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/baumannkoellikergruppe
• LinkedInlinkedin.com/company/baumann-koelliker-gruppe

Revenue estimate

Valuation estimate

Number of profiles

Profiles17 records

Subsidiaries16 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 Baumann Koelliker