Kempter Partner AG

What Kempter Partner AG does

Kempter+Partner AG is a Swiss building services engineering consultancy founded in 1984 and headquartered in St.Gallen, Switzerland. The firm operates as a privately held Aktiengesellschaft owned by its partners, currently employing 23 staff and led by Managing Director Ivo Kempter. With 800+ completed projects over 40+ years, it specializes in integral planning of HLKKSE building services — heating, ventilation, air conditioning, climate, sanitary, and electrical systems — serving as general planner (Gesamtplaner) across all SIA project phases from concept through realization.

The company's core offering spans five integrated service lines: Gebäudetechnikplanung (building technology planning), Beratung (consulting), Dienstleistungen (services), Energie (energy optimization), and Systeme (systems including district heating, thermoactive building systems, and soft ventilation). It applies Building Information Modeling (BIM) methodology with 3D planning as standard practice for over a decade, enabling clash detection and multi-trade coordination. Differentiated technical capabilities include soft ventilation and climate systems using 100% outside air, thermoactive building component systems leveraging thermal inertia, and district heating network planning.

Revenue is generated through project-based professional engineering fees for B2B clients across nine building categories: industry, public buildings, commercial, banks/insurance, historical buildings, retail, hospitality, healthcare, schools, and residential. The firm has no public pricing, no external funding, and operates exclusively in Switzerland (primarily Eastern Switzerland) through direct client engagement and architect referrals. Notable reference customers include Credit Suisse, Swisscom, Migros, Coop, Lidl, Kantonsspital St.Gallen, and the Theater St.Gallen, with the firm claiming 20–30% construction cost savings and up to 50% operating cost reductions as quantitative outcomes of its planning approach.

Name

Kempter Partner AG

Legal name

Kempter+Partner AG

Website

https://kempter-partner.ch

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

Kempter+Partner AG is a Swiss building services engineering consultancy in St.Gallen providing integral HLKKSE planning (heating, ventilation, climate, sanitary, electrical) using BIM methodology. The 23-employee firm serves enterprise clients across industry, banking, healthcare, retail, and public sectors throughout Switzerland.

Ownership category

akta.pro rank

Product category

Building Services Engineering

NAICS

Management, Scientific, and Technical Consulting Services (5416), Other Scientific and Technical Consulting Services (54169)

SIC

Services-Engineering, Accounting, Research, Management (8700), Services-Management Consulting Services (8742)

akta.pro primary industry

Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE) (EUAMAFAJ)

akta.pro secondary industries

Asset Management & Owner’s Engineering (Lifecycle Strategy, Budgeting, Technical Due Diligence) (EUAMAGAJ), Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight) (EUANALAE)

Keywords

• Building services engineering
• HVAC planning
• Energy consulting
• Sanitary engineering
• Building technology planning

Headquarters

HQ city

Saint Gallen

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure

Revenue model

1. Building Services Engineering Consultancy: Professional engineering services for planning and realization of building technology systems including heating, ventilation, air conditioning, cooling, sanitary, and coordination services. Projects are typically commissioned by property developers, industrial companies, public institutions, and commercial clients for new construction and renovation projects.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Kempter+Partner AG provides integrated building services engineering planning covering heating, ventilation, air conditioning, climate, cooling, sanitary, MSR (measurement, control, regulation), and electrical systems. As a general planner, the firm delivers comprehensive project services from concept through realization and coordinates all building services trades. The portfolio is complemented by energy consulting, feasibility studies, building physics calculations, and Minergie/energy certifications for clients across residential, industrial, public, healthcare, retail, and financial sectors.

Product overview

Kempter+Partner AG is an engineering consulting firm offering integrated building technology planning services as a general contractor. The company provides a unified portfolio of services centered on Gebäudetechnikplanung (building technology planning), complemented by Beratung (consulting), Dienstleistungen (services), Energie (energy solutions), and Systeme (systems). Services span heating, ventilation, air conditioning, cooling, sanitary, MSR, and electrical engineering, delivered through integral planning across all SIA phases. The company operates as a single unified offering rather than a modular platform, with all services coordinated internally from initial concept through to realization.

Differentiator

Problem solved

Functional benefit

Products and services

• Gebäudetechnikplanung (Building Technology Planning) Comprehensive integral building technology planning covering heating, ventilation, air conditioning, climate, cooling, sanitary, MSR (measurement, control, regulation), and electrical systems. Services include analysis, coordinated planning, and realization across all SIA phases, from residential buildings to large industrial or administrative complexes. Targeted at property developers, industrial companies, public institutions, banks, and commercial clients.
• Beratung (Consulting) Engineering and consulting services focused on supply security, economic viability, high user comfort, and ecological sustainability. Provides expertise in integral planning, energy concepts, and sustainable building operation and maintenance concepts for property developers, architects, and building owners.
• Dienstleistungen (Building Services Implementation Services) Full-range building technology services including renewable and alternative energy systems, automatic wood combustion, cogeneration (CHP), heat pumps, heat recovery, photovoltaic, district heating, ventilation, climate control, cooling, sanitary, sprinkler systems, coordination, building physics, energy certification, building automation, energy studies, and expert opinions. Targeted at clients requiring comprehensive building services planning.
• Energie (Energy Solutions) Energy optimization services including energy and feasibility studies, energetic renovation assessments, investment analysis, and renewable energy solutions such as solar energy systems. Focuses on environmentally friendly energy resources and energy-saving systems for building owners and developers.
• Systeme (Building Technology Systems) Specialized building technology systems planning including district heating and energy networks, soft ventilation and climate systems, intelligent buildings, thermoactive building systems (TABS), controlled ventilation systems, and HVAC hygiene solutions. Specializes in BVT (Best Available Technology) planning for commercial, administrative, school, industrial, and hospital buildings.

Quantifiable outcome

• 20-30% reduction in building services construction costs compared to conventional techniques through thorough needs assessments
• +3 more outcomes

Named customers18 records

Segments9 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered minor and core.

• Keel Marktideen AGminorImplementation/ SI/ Consulting PartnerKeel Marktideen AG is responsible for concept, design, and TYPO3 programming of the Kempter+Partner website. Located at Hintere Davidstrasse 24, 9000 St. Gallen, Switzerland.
• Trusted Electrical PlannerscoreChannel Partner/ Reseller/ DistributorKempter+Partner collaborates with trusted electrical planners to offer comprehensive total planning services (Gesamtplanung) in HLKKSE trades. This partnership enables them to provide complete building services planning including electrical systems on customer request.

Scale indicators6 records

Recent moves8 records

Expansion highlights4 records

Broad incumbents

• Sweco: European engineering consultancy with Swiss offices covering building services, energy, and infrastructure. Competitor on larger building mandates requiring multidisciplinary coordination.
• ENGIE Solutions: International energy and building services firm with Swiss operations covering energy efficiency, HVAC, and facility services. Broader portfolio than Kempter+Partner but overlapping on energy-oriented building projects.
• AFRY: International engineering, design, and advisory firm with Swiss operations. Competes on larger multidisciplinary infrastructure and building mandates but offers broader scope than Kempter+Partner's specialty.
• Siemens Smart Infrastructure: Global building technologies incumbent offering HVAC, building automation, and energy services. Competes for smart-building mandates but does not specialize in Swiss HLKKSE planning.
• EQUANS: Global multi-technical services provider with Swiss presence in building services, HVAC, and energy. Competes for technical facility mandates but as part of a much broader services portfolio.

Direct peers

• Amstein + Walthert AG: One of Switzerland's largest independent engineering consultancies offering building services (HLKK) planning, energy, and sustainability consulting. Direct competitor for the same pool of Swiss commercial, healthcare, and industrial clients with virtually identical service scope.
• Waldhauser + Hermann AG: Eastern Switzerland engineering firm providing building services planning. Closest geographic peer operating in the same regional market for the same client types.
• Gruner AG: Swiss engineering firm with strong building services, energy, and infrastructure practices across multiple cantons. Competes for HLKKSE planning mandates on the same building types (industrial, healthcare, public).
• HHM Hefti Hess Martignoni AG: Swiss engineering consultancy with HLKK planning, energy, and building physics services. Comparable mid-sized firm competing for similar Swiss building services mandates.
• Ernst Basler + Partner (EBP): Swiss planning and engineering consultancy with building services, energy, and sustainability expertise. Overlaps with Kempter+Partner on energy studies, building physics, and Minergie certification projects.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/kempter-partner-ag

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Kempter Partner AG