Anex Ingenieure AG

What Anex Ingenieure AG does

Anex Ingenieure AG is a Swiss building technology engineering consultancy specializing in the planning and implementation of HLKSE (heating, ventilation, climate, sanitary, electrical) and GA (building automation) systems. The firm operates from four regional offices in Zürich (headquarters), Chur, Luzern, and Basel, covering the German-speaking Swiss market. It is organized as a private company with multiple branch entities registered in the Swiss commercial register and is led by CEO and Chairman Thomas Gautschi alongside three executive managers (Matthias Kolb, Felix Frei) and a broader bench of project managers, quality managers, and specialists.

The company's service portfolio spans the full building lifecycle across four vertical specializations: industrial facilities, energy supply / utilities, hospital construction, and heritage-listed building renovation. Core technical capabilities include ground-source heat exchangers (Erdwärmesonden), photovoltaic planning, anergy networks, lake-water heating and cooling systems, building physics and acoustics, drinking water hygiene, and BIM-based 3D information modeling. The firm has codified two proprietary methodologies — the Raum- und Prozessmatrix (spatial-process matrix) and an information-based 3D building model — and runs continuous energy data monitoring and operational optimization services that feed cross-sector benchmarking (notably for hospital operators). Notable delivery includes the Anergienetz Friesenberg (330+ geothermal probes serving ~2,300 residential units using data center waste heat from Swisscom and Credit Suisse), the Circulago lake water system for WWZ Energie AG in Zug, and the HLKS planning for the Coop Grossbäckerei Schafisheim (CHF 600M construction, the largest private construction site in Switzerland at the time).

Anex generates revenue exclusively through professional services, billed project-by-project across all SIA phases from concept to commissioning, plus a managed-services layer for ongoing monitoring and operational optimization. Go-to-market is direct enterprise field sales to large Swiss corporates, municipal utilities, hospitals, and heritage-property owners, supported by referral-based repeat business, a project-portfolio website, and academic positioning through a ZHAW teaching partnership. The firm holds ISO 9001, ISO 14001, and AS/NZS ISO 45001 certifications, and its website is maintained through a marketing partnership with the agency allink.

Name

Anex Ingenieure AG

Legal name

Anex AG

Website

https://anex.ch

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Anex Ingenieure AG is a Swiss engineering consultancy that plans and delivers HLKSE and building automation systems for industrial, energy utility, hospital, and heritage-building clients across four regional offices in Zürich, Chur, Luzern, and Basel.

Ownership category

akta.pro rank

Product category

Building Technology Engineering Services

NAICS

Engineering Services (54133)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Energy Services (Retrofits/Commissioning/Testing & Balancing) (IMAIABAI)

akta.pro secondary industry

Performance Contracting & Energy-as-a-Service (EaaS) for Buildings (BPABAGAN)

Keywords

• Building technology engineering
• HVAC planning services
• Energy systems consulting
• Building automation solutions
• Sustainable building services

Headquarters

HQ city

Zürich

HQ country

Switzerland

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Planning Services: Anex generates revenue through comprehensive building technology engineering and planning services. This includes HLKSE/GA planning (heating, ventilation, air conditioning, sanitation, electrical, and building automation), from conceptual design through construction supervision and commissioning. Services are delivered across all SIA project phases.
2. Project Management and Quality Assurance: Revenue is generated through overall project leadership (Gesamtprojektleitung), construction management (Bauleitung), and quality assurance services for building technology projects.
3. Energy Strategy Consulting: Consulting services for energy strategies, decarbonization concepts, and sustainable energy system planning for municipalities, energy providers, and industrial clients.
4. Monitoring and Operations Optimization: Ongoing monitoring services, measurement campaigns, and operational optimization services for building technology installations.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Anex Ingenieure AG is a Swiss building technology engineering firm delivering comprehensive HLKSE & GA (heating, ventilation, air conditioning, sanitary, electrical, and building automation) planning and implementation services. The company serves four specialized industries — industrial facilities, energy supply companies, hospital construction, and heritage building renovation — with services spanning the full project lifecycle from strategy development and conceptual design through construction supervision, commissioning, quality assurance, and ongoing operational monitoring and optimization.

Product overview

Anex Ingenieure AG is a building technology engineering firm (Unternehmen für Gebäudetechnik) offering comprehensive services across the building lifecycle. The core offering centers on HLKSE & GA planning and implementation (heating, ventilation, air conditioning, sanitary, electrical, and building automation), supported by Bauherrenberatung und Qualitätssicherung (client advisory and quality assurance), Gesamtleitung Bauprojekte (total project management), and räumliche und technische Koordination (spatial and technical coordination). The company specializes in four key industries: Industrie (industrial facilities), Energieversorgung (energy supply), Spitalbau (hospital construction), and Sanierung denkmalgeschützter Objekte (heritage building renovation). Supporting services include Energiestrategie planen (energy strategy), Erdwärmesonden (ground source heat exchangers), Photovoltaik, Messwesen und Monitoring (measurement and monitoring), Bauphysik und Akustik (building physics and acoustics), Trinkwasserhygiene (drinking water hygiene), and Gasausstieg (gas phase-out consulting). The company employs proprietary methodologies including Raum- & Prozessmatrix (spatial-process matrix) and informationsbasiertes 3D-Modell (information-based 3D modeling) for project delivery.

Differentiator

Problem solved

Functional benefit

Products and services

• HLKSE & GA Planung und Umsetzung

Quantifiable outcome

• 8,000 tonnes annual CO2 reduction through Anergienetz Friesenberg
• +5 more outcomes

Named customers20 records

Segments6 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• IBC Energie Wasser ChurcoreStrategic or Co-development PartnerLong-term strategic partnership with IBC Energie Wasser Chur for developing and implementing sustainable heating and cooling solutions in the Chur region. Anex serves as a ' Sparringpartner' providing strategy development, business models, and comprehensive planning from concept through commissioning. Multiple projects including Vorstudien for anergy networks, energy centers, and tariff model development.
• SwisscomcoreOthersWaste heat supplier for Anergienetz Friesenberg project. Swisscom's data center waste heat is utilized through the anergy network to heat approximately 2,300 residential units.
• Credit SuissecoreOthersWaste heat supplier for Anergienetz Friesenberg project. Credit Suisse's data center waste heat is utilized through the anergy network, providing cooling in return.
• energienetz GSG AGcoreStrategic or Co-development PartnerStrategic partner for industrial area energy networking in St. Gallen/Gossau/Gaiserwald. Anex developed the master plan and led implementation of the anergy network utilizing waste heat from industrial processes.
• WWZ Energie AGcoreStrategic or Co-development PartnerLong-term partnership for Circulago project - a major lake water heating and cooling system for Zug and Baar-Süd. Anex provided overall concept, business model development, and planning through all project phases.
• ewl (Energie Wasser Luzern)coreStrategic or Co-development PartnerPartnership for See-Energie Horw Kriens project utilizing Lake Lucerne for heating and cooling. Anex provided overall planning for the lake water system and distribution network.
• ZHAW (Zürcher Hochschule für Angewandte Wissenschaften)minorStrategic or Co-development PartnerAcademic partnership where Anex and Coex provide practical knowledge for the energy transition through teaching in the CAS program 'Energiesysteme für klimaneutrale Areale und Quartiere'.

Scale indicators15 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Eicher + Pauli AG: Eicher + Pauli is a Swiss engineering firm focused on building services, energy, and sustainability consulting, with deep expertise in HVAC, energy strategies, and district heating/cooling. It is highly comparable to Anex in scope and customer profile across the DACH region with strong Swiss presence.
• Hefti Hess Martignoni (HHM) AG: HHM is a Swiss building services engineering consultancy providing HLKSE planning and energy concepts for healthcare, commercial, and residential projects. It competes with Anex in the same Swiss market with a comparable engineering-services business model.
• Grünenfelder + Partner AG: Grünenfelder + Partner is a Swiss building services engineering firm (HLKS) with expertise in hospital, industrial, and commercial projects. Its service portfolio and Swiss geographic footprint make it a direct niche competitor to Anex's core HLKSE planning offering.
• Amstein + Walthert AG: Amstein + Walthert is the largest independent Swiss building services engineering firm, offering HLKSE planning, energy consulting, and building automation across all building types. It is the most direct Swiss peer to Anex in terms of services, customer base (developers, hospitals, utilities, industry), and geographic footprint.
• Ernst Basler + Partner (EBP): EBP is a Swiss engineering and consulting firm with strong practices in energy, buildings, mobility, and infrastructure. Its energy strategy, district heating/cooling planning, and decarbonization advisory work directly overlap with Anex's Energieversorgung and Spitalbau service lines.
• Coex AG: Coex is a Swiss engineering consultancy specializing in building technology, energy, and sustainability planning, and is named jointly with Anex as a teaching partner in the ZHAW CAS program on climate-neutral energy systems. It overlaps directly with Anex in HLKSE planning, energy strategies, and decarbonization consulting for Swiss enterprise clients.
• Waldhauser + Hermann AG: Waldhauser + Hermann is a long-established Swiss building services engineering firm (HLKSE) active across residential, commercial, hospital, and industrial projects. Its service scope, Swiss geographic coverage, and project-based engineering model closely mirror Anex's core offerings.

Broad incumbents

• Equans Switzerland (formerly Bouygues Energies & Services): Equans Switzerland is part of a global multi-technical services group offering facility management, HVAC, energy, and building automation across Switzerland. As a broader incumbent, it overlaps with Anex on integrated building services and energy projects but operates at significantly larger scale and with full operations/maintenance capabilities beyond pure planning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks3 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/anex-ingenieure-ag

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Anex Ingenieure AG