A. Lehmann Elektro AG

What A. Lehmann Elektro AG does

A. Lehmann Elektro AG is a family-owned Swiss electrical contracting and building technology firm headquartered at Tellstrasse 4, Gossau, founded in 1960. The company operates across five integrated service lines: Gebäudetechnik (building electrical planning, installation, and maintenance), ICT (IT infrastructure, networking, and telecommunications), Automation (KNX, Loxone, and MSRL building automation), Photovoltaik (solar PV planning, installation, and consulting), and Elektromobilität (EV charging infrastructure). It serves four primary customer segments — residential property owners, commercial and industrial businesses, public institutions, and agricultural operations — across Eastern Switzerland (8 branches in Gossau, Herisau, St. Gallen, Arnegg, Waldkirch, Schönengrund, Niederteufen) and a German branch in Konstanz, with 24/7 service availability 365 days per year.

The business generates revenue through project-based professional services contracts (planning, installation, maintenance) across all five service lines, with pricing not publicly disclosed. The company maintains a partner ecosystem of more than 35 vendors including Microsoft, Google, Cisco, Fortinet, Sophos, Siemens, Loxone, KNX, Swisscom, and Sunrise. It has developed proprietary software tools — the Lehmann-Connector (telephony integration for MS Teams and 3CX) and the IKT Security Toolbox (framework for implementing the Swiss IKT-Minimalstandard) — alongside embeddable customer-facing tools including an Eturnity-powered solar calculator and a Smarango SmartHome configurator. Marketing channels include the company website, Facebook and Instagram, local event sponsorship (e.g., Königssponsor at NOS 2025), and Google reviews.

A. Lehmann Elektro is owner-managed. Madeleine and Albert Lehmann acquired the business in 1991 and grew it from a small operation to 160+ employees across 8 locations. In June 2024, Albert Lehmann transferred operational leadership to Ralf Zeller as Geschäftsführer (CEO); the Lehmann family retains ownership and active involvement. The company operates a structured apprenticeship program with a dedicated training workshop opened in Gossau in February 2026, and achieved a 12-of-12 apprentice exam pass rate in 2025 with full graduate retention. A German operating entity (A. Lehmann Elektro GmbH, Konstanz) supports cross-border activity.

Name

A. Lehmann Elektro AG

Legal name

A. Lehmann Elektro AG

Website

https://lehmann.ch

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

11–50 employees

Short description

A. Lehmann Elektro AG is a family-owned Swiss electrical contracting firm providing building technology, ICT, automation, solar PV, and EV charging services across eight regional locations in Eastern Switzerland and Southern Germany, with over 150 employees and a structured apprenticeship program.

Ownership category

akta.pro rank

Product category

Electrical Contracting & Building Technology Services

akta.pro primary industry

Electrical Systems Maintenance (LV/MV, Switchgear, UPS) (BPABACAC)

Keywords

• Electrical installation services
• Building technology solutions
• Photovoltaic system installation
• ICT infrastructure services
• Building automation systems

Headquarters

HQ city

Gossau

HQ country

Switzerland

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Building Technology Services: Planning, installation and maintenance of electrical systems in buildings for all types of use cases
2. ICT Services: Design, setup and maintenance of secure IT environments and telecommunications systems
3. Photovoltaics: Solar panel installation services including planning, installation and commissioning
4. Automation: Building automation systems including KNX, Loxone and MSRL solutions
5. Electromobility: Electric vehicle charging station installation services

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

A. Lehmann Elektro AG plans, installs and maintains electrical engineering systems for buildings, spanning electrical installations (Gebäudetechnik), ICT and telecommunications infrastructure, building automation (KNX, Loxone, MSRL), photovoltaic (solar PV) systems and electromobility charging infrastructure. The company additionally offers periodic electrical device testing, remote maintenance services and proprietary tools such as the Lehmann-Connector (telephony integration for MS Teams and 3CX) and the IKT Security Toolbox for SMB IT security compliance.

Product overview

A. Lehmann Elektro AG is a building technology provider offering a portfolio of integrated services under one roof: Gebäudetechnik (electrical installation), ICT (IT and telecommunications), Automation (MSRL/building automation including KNX), Photovoltaik (solar/PV systems), and Elektromobilität (EV charging). Key named offerings include the Solarrechner (online solar calculator), the Lehmann-Connector (telephony integration tool for MS Teams and 3CX), and the IKT Security Toolbox (structured IT security implementation framework). The company also operates a SmartHome Konfigurator and provides remote maintenance services. The portfolio is organized by business division rather than a single unified software platform.

Differentiator

Problem solved

Functional benefit

Brands

• Lehmann-Connector: A telephony integration tool developed by A. Lehmann Elektro AG that integrates with MS Teams Telephony and 3CX, displaying caller information and allowing users to copy contact details directly from the connector.
• IKT Security Toolbox

Products and services

• Gebäudetechnik (Building Technology) Planning, installation and maintenance of electrical systems for residential, commercial, industrial, agricultural and public-sector buildings, covering power distribution, lighting, safety systems and energy-efficient electrical solutions.
• ICT / Informatik Design, setup and maintenance of secure IT environments, networking, cybersecurity, cloud (Microsoft 365, Azure, Google Workspace), telecommunications and telephony systems for SMB and enterprise customers.
• Automation (Building Automation) Building automation services using MSRL (measurement, control, regulation) and KNX systems for intelligent control of HVAC, lighting and other building systems in residential and commercial properties.
• Photovoltaik (PV Systems) Photovoltaic system planning, installation and commissioning for residential, commercial and industrial customers, including rooftop PV plants up to 890 kWp, with grid connection support and economics assessment via an online solar calculator.
• Elektromobilität (EV Charging Infrastructure) Planning and installation of electric vehicle charging stations for residential, commercial and public applications, including 150 kW fast-charging infrastructure delivered through partnership with Swissecharge.ch.
• Lehmann-Connector Proprietary telephony integration tool that connects to enterprise data systems to display caller name and additional data during incoming calls, integrated with Microsoft Teams Telephony and 3CX PBX environments for enhanced call handling.
• IKT Security Toolbox Proprietary IT security implementation toolkit providing structured methodology to implement the IKT-Minimalstandard's five core functions (Identify, Protect, Detect, Respond, Recover), including documentation templates, customizable checklists and professional guidance for SMBs.
• Periodische Geräteprüfung Periodic testing of electrical devices as mandated by Swiss law since May 2018, covering inspection and compliance documentation for Swiss businesses.
• Fernwartung (Remote Maintenance) Remote maintenance and support service using TeamViewer that enables Lehmann technicians to access and resolve customer IT and telecommunications issues remotely.

Quantifiable outcome

• 12 of 12 apprentices passed final exams in 2025
• +2 more outcomes

Named customers16 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature3 records

Partnerships

38 partnerships are on record, tiered core.

• SiemenscoreTechnology or IntegrationTechnology partner for building automation and electrical installation products
• LoxonecoreTechnology or IntegrationSmart home automation partner for residential and commercial building automation solutions
• MicrosoftcoreTechnology or IntegrationCore IT partner for cloud services, Microsoft 365, and Azure infrastructure. Key Dienstleister (service provider) in IT area.
• GooglecoreTechnology or IntegrationCore IT partner for workspace and cloud services. Key Dienstleister (service provider) in IT area.
• CiscocoreTechnology or IntegrationNetworking equipment partner for IT infrastructure solutions
• Cisco MerakicoreTechnology or IntegrationCloud-managed IT networking solutions partner
• FortinetcoreTechnology or IntegrationCybersecurity solutions partner for network security
• SophoscoreTechnology or IntegrationIT security and endpoint protection solutions
• VMwarecoreTechnology or IntegrationVirtualization and cloud infrastructure partner
• SwisscomcoreChannel Partner/ Reseller/ DistributorTelecommunications services partner
• SunrisecoreChannel Partner/ Reseller/ DistributorTelecommunications services partner
• WAGOcoreTechnology or IntegrationAutomation components and SPS (PLC) solutions partner
• KNXcoreTechnology or IntegrationStandard for home and building automation
• DELLcoreTechnology or IntegrationHardware partner for computers and servers
• SynologycoreTechnology or IntegrationStorage solutions and NAS systems partner
• BitdefendercoreTechnology or IntegrationSecurity software solutions
• ESETcoreTechnology or IntegrationAntivirus and endpoint security solutions
• Avast BusinesscoreTechnology or IntegrationBusiness antivirus and security solutions
• Trend MicrocoreTechnology or IntegrationCybersecurity and threat protection solutions
• VeeamcoreTechnology or IntegrationBackup and data protection solutions
• AcroniscoreTechnology or IntegrationCyber protection and backup solutions
• CitrixcoreTechnology or IntegrationVirtualization and desktop solutions
• SipcallcoreChannel Partner/ Reseller/ DistributorVoIP telephony services provider
• PeoplefonecoreChannel Partner/ Reseller/ DistributorCloud telephony services provider
• 3CXcoreTechnology or IntegrationPBX and telephony solutions - Lehmann-Connector integrates with 3CX
• Control & Connect AGcoreTechnology or IntegrationBuilding technology integration partner
• RUVOR Management AGcoreTechnology or IntegrationAlarm receiving center services
• e3m EnergiemanagementcoreTechnology or IntegrationEnergy management solutions
• SAK (St. Gallisch-Appenzellische Kraftwerke)coreChannel Partner/ Reseller/ DistributorRegional energy utility company - PV installation connection partner
• Swissecharge.chcoreChannel Partner/ Reseller/ DistributorElectric vehicle charging infrastructure partner
• Blumer Lehmann AGcoreStrategic or Co-development PartnerModular construction partner - collaborated on multiple projects including school pavilions ZM10 Zürich, Bio-Café Lausanne, Innovationspark Zürich. Shared business relationships and co-development of building solutions.
• SwisseprojectcoreTechnology or IntegrationConstruction project management software partner
• PRTG (Paessler)coreTechnology or IntegrationNetwork monitoring and management solutions
• HP/HPEcoreTechnology or IntegrationComputing hardware partner
• LenovocoreTechnology or IntegrationComputing hardware partner
• AlsocoreChannel Partner/ Reseller/ DistributorIT distribution and solution provider
• Smarango (Sonepar Suisse AG)coreTechnology or IntegrationSmartHome configurator tool provider integrated on website
• Eturnity AGcoreTechnology or IntegrationSolar and heating calculator tool provider integrated on website

Scale indicators5 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Walter Fierz Elektro AG: Privately held Swiss electrical contractor focused on building technology, ICT, and energy solutions with regional branches. Operates with similar multi-branch, integrated service model and competes in comparable Swiss sub-regions.
• Implenia AG: Switzerland's largest construction and real-estate services company, listed on SIX. Comparable as a major contractor delivering integrated building services for institutional and commercial clients - directly overlapping with Lehmann's large-project portfolio (e.g., Blumer Lehmann modular builds).
• Burkhalter Group: Switzerland's largest publicly listed independent electrical contractor (SIX: BRKN), headquartered in Zurich. Operates a multi-branch Swiss network providing electrical installations, building technology, and ICT services - the closest scaled analog to Lehmann's integrated service model.
• ETAVIS (Bouygues Energies & Services): Swiss electrical contracting and building services group, now part of Bouygues Energies & Services. Competes head-to-head with Lehmann in commercial and industrial electrical installations, automation, and infrastructure projects across Switzerland.

Broad incumbents

• BKW AG: Swiss energy and infrastructure services group headquartered in Bern. Provides integrated building, energy, and network services across Switzerland, partially overlapping with Lehmann's PV, electromobility, and electrical contracting offerings, particularly in regional Swiss markets.
• ABB Schweiz AG: Swiss-headquartered global leader in electrification, automation, and motion. As a major supplier of switchgear, drives, and industrial automation products, ABB is both an adjacent ecosystem player and a broad incumbent whose product portfolio can displace independent integrator services like Lehmann's.
• Schindler Aufzüge AG: Swiss-headquartered global elevator/escalator and multi-technology building services company (listed on SIX). Comparable as a large Swiss-rooted, owner-influenced firm delivering integrated building technology services, with overlapping institutional and commercial customer relationships.
• Swisscom AG: Switzerland's incumbent telecom provider and listed on SIX. Functions both as a core telecommunications channel/partner for Lehmann's ICT services and as a broad incumbent offering enterprise IT and managed services that can substitute for parts of Lehmann's ICT portfolio.
• Siemens Schweiz AG: Swiss arm of the global electrical engineering and automation conglomerate. Lehmann is an active technology/integration partner for Siemens building automation products, but Siemens is also a broad incumbent that supplies and sometimes delivers solutions competing with Lehmann's automation business.

Emerging players

• Landis+Gyr AG: Swiss-listed (SIX: LAND) global leader in smart metering and grid management headquartered in Cham. Adjacent to Lehmann's energy services and PV metering integration work; not a direct competitor but a relevant adjacent player in the broader Swiss energy/infrastructure ecosystem.

Market position

Strengths4 records

Weaknesses2 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookde-de.facebook.com/lehmannag
• Instagraminstagram.com/alehmannelektroag/?hl=de
• Xx.com/LehmannElektro

Revenue estimate

Valuation estimate

Number of profiles

Profiles18 records

Subsidiaries1 record

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 A. Lehmann Elektro AG