Ingenieurgesellschaft Hetzel mbH & Co.KG

What Ingenieurgesellschaft Hetzel mbH & Co.KG does

Ingenieurgesellschaft Hetzel mbH & Co. KG (IGH) is a privately held German engineering firm founded in 1997 by Thomas Hetzel and headquartered in Schwäbisch Gmünd, Baden-Württemberg, with a regional subsidiary in Stuttgart. The firm operates as a consulting partner and Generalplaner for Technical Building Equipment (Technische Gebäudeausrüstung, TGA), providing integral planning services across HVAC, electrical engineering, fire protection and sprinkler systems, measurement-control-regulation (MSR), building automation, energy concepts, and building physics for the entire building lifecycle under HOAI Leistungsphasen 1-9.

IGH serves primarily industrial manufacturing and healthcare clients, with a distinctive concentration of approximately 70% of projects executed in existing buildings under ongoing operations—a capability that addresses the operational complexity of retrofit and modernization mandates. Named engagements span automotive (Porsche), medical technology (Erbe Elektromedizin, SCHOTT), healthcare (Ostalb-Klinikum Aalen), consumer electronics (Nubert), industrial manufacturing (GEMÜ, Franke, Hartmann, Goetze, LIZ), financial services (Kreissparkasse Ostalb), and education/research institutions (IHK Weingarten, Forschungsinstitut Edelmetalle). The firm applies BIM methodology, 3D laser scanning, VR visualization, DDS-CAD, and Dialux/Relux lighting design, and is ISO 9001 certified with VDI-certified drinking water hygiene expertise.

IGH generates revenue through project-based professional-services fees and general-planning mandates, sold via direct enterprise sales and long-term client relationships, with growth driven by referrals and industry reputation. The firm co-founded the 360Akademie joint continuing-education platform with Kubus360 and Elektroplan in 2014, and has been consecutively awarded the TOP JOB employer seal (2020, 2022, 2024) with a 2025 Employer-of-the-Year nomination, reflecting a stable Mittelstand consultancy operating across Baden-Württemberg and adjacent German markets.

Name

Ingenieurgesellschaft Hetzel mbH & Co.KG

Legal name

Ingenieurgesellschaft Hetzel mbH & Co. KG

Website

https://ig-hetzel.com

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

1–10 employees

Short description

Ingenieurgesellschaft Hetzel is a privately held German engineering consultancy founded in 1997, serving as Generalplaner for Technical Building Equipment (TGA) for industrial manufacturing and healthcare clients across the building lifecycle, leveraging BIM, 3D laser scanning, and VR-based planning.

Ownership category

akta.pro rank

Product category

Building Services Engineering

NAICS

Architectural, Engineering, and Related Services (5413), Management, Scientific, and Technical Consulting Services (5416)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Systems Engineering & Technical Program Management (BPAHAIAI)

akta.pro secondary industries

Building Automation & Controls (BAS/BMS) Contracting (IMAFALAE), Asset & Lifecycle Management (CapEx Planning, Reliability) (BPABAAAI)

Keywords

• Building services engineering
• HVAC system planning
• General planning services
• Building information modeling
• Energy consulting

Headquarters

HQ city

Schwäbisch Gmünd

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Planning Services for Technical Building Equipment: IGH provides comprehensive consulting, integral planning, and competent realization for technical building equipment across the entire lifecycle of buildings and plants. Services span eight Leistungsfelder (service fields) including HVAC, electrical engineering, fire protection, sprinkler systems, MSR technology, building automation, energy concepts, and building physics. Revenue is generated through project-based fees for consulting and planning services (HOAI Leistungsphasen 1-9), general planning mandates, and ongoing project management and construction supervision engagements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Ingenieurgesellschaft Hetzel is an engineering consulting firm providing integral general planning (Generalplanung) for Technical Building Equipment (Technische Gebäudeausrüstung, TGA). Services span HVAC, sanitation, cooling, electrical engineering, fire protection and sprinkler systems, MSR technology, building automation, energy concepts, and building physics for industrial, healthcare, and public-sector clients. The firm emphasizes lifecycle-oriented planning, BIM methodology, 3D laser scanning, VR visualization, and execution in occupied existing buildings.

Product overview

IGH Ingenieurgesellschaft Hetzel operates as an engineering consulting firm offering integrated technical building equipment (TGA) planning services. The core offering centers on TGA Generalplanung, supported by specialized capabilities including Energiekonzepte for sustainable energy planning, BIM-Projekte for digital lifecycle-oriented design, 3D-Laserscanning for existing condition capture, and VR-Visualisierung for immersive project visualization. The company also provides specialized services such as Gefährdungsanalyse Trinkwasser for drinking water hygiene certification. The 360Akademie serves as an educational platform for internal development and external industry knowledge sharing. The company focuses primarily on industrial and healthcare sectors, with approximately 70% of projects executed in occupied buildings during ongoing operations.

Differentiator

Problem solved

Functional benefit

Products and services

• TGA Generalplanung (Technische Gebäudeausrüstung General Planning)
• Energiekonzepte (Energy Consulting)
• Gefährdungsanalyse Trinkwasser (Drinking Water Risk Analysis)
• 360Akademie

Quantifiable outcome

• Approximately 70% of IGH's projects are completed in existing buildings with ongoing operations.
• +2 more outcomes

Named customers12 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Four partnerships are on record, tiered core and supporting.

• Kubus360 GmbHcoreStrategic or Co-development PartnerIGH co-founded the 360Akademie together with Kubus360 GmbH and Elektroplan as a joint continuing education and knowledge-sharing platform serving approximately 100 employees across the three partner companies. The initiative covers all lifecycle phases of real estate and organizes networking events for industry professionals.
• Elektroplan Ingenieur GmbHcoreStrategic or Co-development PartnerIGH co-founded the 360Akademie together with Kubus360 GmbH and Elektroplan as a joint continuing education and knowledge-sharing platform. Elektroplan brings expertise in electrical engineering to complement IGH's TGA capabilities.
• Hopp + Flaig PartG mbBsupportingImplementation/ SI/ Consulting PartnerHopp + Flaig supported IGH's ISO 9001 certification process and provides ongoing quality management consulting. Their partner Mustafa Vural also serves as IGH's officially appointed Data Protection Officer (Datenschutzbeauftragter).
• BFK-Architekten StuttgartsupportingImplementation/ SI/ Consulting PartnerArchitecture firm serving as Generalplaner and architect for the Ludwigsburg Industrial Center (LIZ) project. IGH provides Technical Building Equipment planning for this flagship regional project.

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Drees & Sommer: One of Germany's largest independent engineering consultancies with a deep TGA and building services practice. Comparable to IGH on core service lines (HVAC, electrical, building automation, energy consulting) but operates nationally and internationally with thousands of employees, serving as the broader incumbent benchmark IGH competes against for larger mandates.
• Johnson Controls: Global building technologies provider with HVAC, building automation, fire protection, and energy services. Competes with IGH on building-automation-heavy mandates and energy-retrofit projects for industrial and healthcare clients, though at vastly larger scale.
• Siemens Smart Infrastructure: Global incumbent in building automation, energy management, and electrical infrastructure. Competes with IGH where clients prioritize integrated automation platforms alongside TGA planning in industrial and healthcare settings.
• SPIE Deutschland (Building Solutions): Major German technical building services provider with planning, installation, and facility management capabilities. Overlaps with IGH on TGA planning for industrial and healthcare clients, but operates at a much larger scale nationally.
• ENGIE Deutschland (Building Services): Large German arm of global energy and building services group offering TGA planning, installation, and operations across HVAC, energy, and automation. Competes with IGH on industrial and healthcare projects where integrated planning plus execution is required by clients.

Direct peers

• Planungsgruppe M+M AG: German engineering consultancy providing technical building equipment planning, energy consulting, and facility-related services. Comparable to IGH in service breadth, HOAI-based delivery, and industrial/healthcare client focus, with a slightly larger national footprint.
• ZWP Ingenieure: Germany-focused engineering consultancy specializing in technical building equipment (TGA) planning, energy concepts, and building automation. Now part of the Drees & Sommer group, it is one of the closest direct competitors to IGH on industrial and healthcare TGA Generalplanung mandates.
• R + S SCHILLING GmbH: German TGA engineering firm providing HVAC, electrical, fire protection, and MSR planning for industrial and commercial clients. Closely comparable mid-sized practice with similar HOAI-based service model and direct overlap with IGH's core offering.
• Ingenieurgemeinschaft für Haustechnik (IGH Ingenieure / iwb): Mid-sized German engineering firm delivering integrated TGA planning including HVAC, sanitary, electrical, and building automation for industrial, healthcare, and commercial clients. Direct peer in service scope and customer profile.

Regional players

• Klotz und Partner Ingenieurbüro: Mid-sized German engineering firm focused on TGA planning for industrial, commercial, and healthcare projects. Comparable to IGH in service scope and client profile but with a different regional concentration, illustrating IGH's competitive set among like-sized TGA consultancies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

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Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Ingenieurgesellschaft Hetzel mbH & Co.KG