tga-engineering

What tga-engineering does

tga-engineering GmbH is a privately held German engineering consultancy headquartered in Erlangen, Bavaria, founded in 1998 and operating for approximately 25 years. The firm delivers neutral, vendor-independent consulting across the full spectrum of technical building equipment (Technische Gebäudeausrüstung, TGA), covering air conditioning and climate technology, energy and heat technology, electrical engineering, sanitary technology, data/IT infrastructure, and fire protection. Service delivery follows the German HOAI fee framework (§53-56) and spans all nine Leistungsphasen, from analysis and concept development through planning, tendering, construction supervision, and quality control, supplemented by energy consulting, energy certificates, energy controlling, technical project management, and training.

The company is led by two Managing Directors, Roland Piatkowski and Stefan Hackl. Piatkowski is a publicly appointed and sworn expert (öffentlich bestellter und vereidigter Sachverständiger) for energy measurement and billing, serves on the executive board of the Energieregion Nürnberg, and acts as an arbitrator in energy-related disputes; the firm also holds VdS certification for fire alarm systems. Customer concentration sits in the Nuremberg metropolitan region across education (multiple Realschulen and Gymnasien), public administration (municipal buildings, police stations), banking (Sparkasse Erlangen, Deutsche Bank, Raiffeisenbank), insurance, healthcare, and transportation (VAG Nürnberg streetcar depot), with over 500 projects completed historically.

Revenue is generated exclusively through project-based professional service fees under HOAI structures, targeting B2B and public-sector clients; private customers are handled by phone only. There is no disclosed revenue, no external funding, no app, no API, no digital product surface, and no AI/ML capability — the business model is fundamentally labor-based expert consulting, with growth contingent on the personal capacity and authority of its principals rather than scale economics.

Name

tga-engineering

Legal name

tga-engineering GmbH

Website

https://tgaengineering.de

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

1–10 employees

Short description

tga-engineering GmbH is a privately held Erlangen-based engineering consultancy providing vendor-independent technical building equipment (TGA) services across HVAC, energy, electrical, sanitary, data, and fire protection disciplines for B2B and public-sector clients in the Nuremberg metropolitan region.

Ownership category

akta.pro rank

Product category

Building Services Engineering Consulting

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413), Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Testing, Adjusting & Balancing (TAB) & Performance Verification (BPABACAJ)

akta.pro secondary industries

HVAC & Refrigeration Contracting (IMAFALAB), Building Thermal Controls & Building Management Systems (HVAC BMS) (IMAHAKAK)

Keywords

• Building services engineering
• HVAC engineering consulting
• Fire protection engineering
• Energy efficiency consulting
• Technical building equipment

Headquarters

HQ city

Erlangen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional engineering services provided under HOAI §53-56, covering all 9 performance phases (Leistungsphasen 1-9) for technical building equipment. Revenue is generated through project-based professional service fees for analysis, planning, tendering, and construction supervision.
2. Expertise and Appraisals: Expert witness services and technical appraisals, including public appointment as expert in energy measurement and billing (Energiemessung und Energieabrechnung)
3. Energy Consulting Services: Energy consulting, energy concepts and studies, energy passports, and energy controlling services

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

tga-engineering GmbH provides neutral engineering consulting services for technical building equipment (Technische Gebäudeausrüstung, TGA) across HVAC/air-climate, energy/heat, electrical, sanitary, data, and fire protection disciplines. Engagements are delivered through all nine HOAI Leistungsphasen (analysis, planning, tendering, construction supervision) and supplemented by energy consulting, energy certificates, energy controlling, technical project management, quality control, and publicly appointed expert witness services for energy measurement and billing.

Product overview

tga-engineering GmbH is an engineering consulting firm offering neutral, comprehensive technical building services (TGA – Technische Gebäudeausrüstung) across air/climate technology, energy/heat technology, electrical engineering, plumbing, data technology, and fire protection. The company provides services from analysis and consultation through planning, tendering, and project supervision using HOAI Leistungsphasen 1-9. Additional specialized offerings include energy consulting, energy concepts and certificates, energy controlling, expert witness services, VdS-certified fire alarm systems, technical project management, and quality control. The portfolio functions as a unified consulting service with add-on specialized capabilities rather than discrete software products.

Differentiator

Problem solved

Functional benefit

Products and services

• Air and Climate Technology Engineering (Luft- und Klimatechnik) Engineering and consulting services for air conditioning and climate control systems in buildings, covering new builds, renovation, and energy-efficient modernization.
• Energy and Heat Technology Engineering (Energie- und Wärmetechnik) Engineering services for energy systems and heating technology in buildings, including energy efficiency and thermal system design.
• Electrical Engineering (Elektrotechnik) Electrical engineering consulting and design services for building installations and systems.
• Sanitary/Plumbing Engineering (Sanitärtechnik) Sanitary and plumbing engineering services for building water and waste systems.
• Data Technology Engineering (Datentechnik) Data and IT infrastructure engineering services integrated into building technical equipment scope.
• Fire Protection Engineering (Brandschutztechnik) Fire protection engineering services including VdS-certified fire alarm systems installation and planning.
• HOAI Engineering Services §§53-56 (Leistungsphasen 1-9) Full-spectrum engineering services under German HOAI regulations covering all nine Leistungsphasen (1-9): analysis, planning, tendering, and object-related services for technical building equipment projects.
• Energy Consulting (Energieberatung) Energy consulting services advising on energy use and efficiency for buildings and facilities.
• Energy Concepts and Studies (Energiekonzepte und -studien) Development of energy concepts and feasibility studies for new builds and renovations.
• Energy Passes/Certificates (Energiepässe) Preparation of energy certificates and documentation for buildings.
• Energy Controlling (Energiecontrolling) Post-construction energy monitoring and controlling services for buildings.
• Expert Witness Services (Sachverständigenleistungen) Certified expert services including publicly appointed and sworn expert opinions in energy measurement and billing, plus assessor (Beisitzer) duties in arbitration courts.
• Technical Project Management (Technisches Projektmanagement) Technical project management for building projects covering coordination, scheduling, and oversight of engineering deliverables.
• Quality Control (Qualitätskontrolle) Quality assurance and control services for building technical installations, including monitoring and acceptance of contractor work.

Named customers13 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

Feature4 records

Partnerships

One partnership is on record.

• Energieregion NürnbergcoreStrategic or Co-development PartnerThe company is represented on the executive board of the Energieregion Nürnberg, demonstrating their special expertise in energy and energy efficiency topics. This strategic positioning provides visibility and influence in regional energy policy and sustainable building practices.

Scale indicators2 records

Recent moves4 records

Expansion highlights3 records

Broad incumbents

• Drees & Sommer: Large German engineering firm offering MEP/TGA planning, energy consulting, and sustainable building advisory. Overlaps with tga-engineering's full HOAI service chain but serves a broader client base and larger projects nationally and internationally.

Direct peers

• ZWP Ingenieur-AG: German engineering consultancy specializing in technical building equipment (TGA), energy concepts, and HOAI-compliant planning services. Operates at larger scale across multiple offices, directly competing for the same MEP/HVAC engineering engagements that tga-engineering serves.
• Ingenieurgruppe Bauen: Mid-sized German engineering consultancy delivering TGA planning, energy consulting, and building services engineering in line with HOAI performance phases. Closely comparable in scope, regional German footprint, and project types.
• ECE Engineering GmbH: German engineering office specializing in energy and building services engineering, including energy concepts, energy certificates, and HOAI-based TGA planning—a close functional peer to tga-engineering's energy-focused offerings.
• GTB Ingenieure GmbH: Berlin-based engineering consultancy focused on technical building equipment, energy efficiency, and HOAI-compliant planning. Comparable mid-sized competitor pursuing similar public-sector and commercial TGA engagements.
• Hetzel + Sponheuer GmbH: German TGA engineering office providing HVAC, sanitary, electrical, and fire protection design along with energy consulting. Directly comparable service portfolio and HOAI-based delivery model.
• K+P Ingenieure GmbH: German engineering firm offering TGA planning, energy consulting, and building services design. Directly comparable in service mix and customer segments including public-sector clients.

Emerging players

• Solares Bauen GmbH: Stuttgart-based engineering firm focused on solar-integrated building services, energy concepts, and sustainable TGA planning. Comparable niche overlap with tga-engineering's energy and heat technology practice.

Market position

Strengths3 records

Weaknesses3 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 tga-engineering