brendel Ingenieure GmbH

What brendel Ingenieure GmbH does

brendel Ingenieure GmbH is an independent, owner-managed engineering firm founded in 1958 in Frankfurt am Main, Germany, specializing in Technische Gebäudeausrüstung (TGA), the planning of technical building equipment. The firm delivers integrated planning across all major TGA trades: plumbing, heating, ventilation, air conditioning, refrigeration, electrical, IT, conveyor technology, building automation, fire detection, fire extinguishing, security, and lighting. It employs BIM methodology and advanced physics-based simulation (CFD, dynamic-thermal, lighting, electrical network, lightning protection risk) primarily through its subsidiary INVISCOtec GmbH, which also serves as the interface to academic science and is registered as a DGNB certifier. Service scope spans full HOAI Leistungsphasen 1–9 for new construction, plus renovation, refurbishment, tenant fit-out, revitalization, technical due diligence, and post-occupancy monitoring and operational optimization. A sister subsidiary, brendel Consulting GmbH (100% owned since 2021), provides construction-management and crisis-troubleshooting services.

Revenue is generated through project-based professional services fees, quote-priced per engagement and billed over multi-year contracts. The go-to-market is sales-led, enterprise field sales targeting property developers, building owners, architects, and corporate clients for complex TGA projects including data centers, hospitals, office towers, hotels, exhibition venues, industrial buildings, residential developments, and special buildings. Distribution is direct, with project acquisition driven by reputation, architect partnerships, and repeat clients rather than marketing channels. The firm holds ISO 9001-aligned quality management and TÜV certifications for fire detection/voice alarm (DIN 14675) and sprinkler planning.

Primary customer segments are office buildings, data centers, and hospitals/healthcare facilities, with named enterprise clients including e-shelter, Interxion, Art-Invest Real Estate, OrT Group, Deutsche Bank Park, Städel Museum, and Bayerische Versorgungskammer. Operations are concentrated in Germany (Frankfurt and projects nationwide including Munich, Hamburg, Cologne, Darmstadt, Eschborn, Hanau) with select international work in Switzerland. The firm has roughly 50–70+ staff across the parent and subsidiaries, with leadership held by Managing Directors Thomas Kremer and Sven Schubert (equal principal shareholders since 2022) alongside next-generation shareholders Lucas Nikolaizek and Magnus Eyrich.

Name

brendel Ingenieure GmbH

Legal name

brendel Ingenieure GmbH

Website

https://brendel-ing-ffm.de

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

11–50 employees

Short description

brendel Ingenieure GmbH is an independent, owner-managed German engineering firm founded in 1958 that plans technical building equipment (TGA) across all trades for complex construction projects, serving enterprise clients including data center operators, real estate developers, hospitals, and cultural institutions, primarily in Germany.

Ownership category

akta.pro rank

Product category

Technical Building Equipment (TGA) 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 industries

HVAC & Refrigeration Contracting (IMAFALAB), Testing, Adjusting & Balancing (TAB) & Performance Verification (BPABACAJ)

Keywords

• Technical building equipment planning
• HVAC engineering services
• Building information modeling
• Datacenter engineering design
• Construction project management

Headquarters

HQ city

Frankfurt am Main

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. TGA Planning Services: Comprehensive technical building equipment planning across all disciplines (HOAI Leistungsphasen 1-9). Project-based fees for new construction, renovation, and revitalization projects.
2. Consulting Services: Standalone consulting services including feasibility studies, site analyses, economic analyses, technical due diligence, energy efficiency consulting, and building certification support.
3. Technical Project Management: Technical project steering and construction management services, particularly for projects with high TGA content such as datacenters or industrial facilities.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

brendel Ingenieure GmbH provides comprehensive Technical Building Equipment (TGA / Technische Gebäudeausrüstung) planning and project management for complex commercial construction projects. Services cover all TGA disciplines from a single source: plumbing, heating, ventilation, air conditioning, refrigeration, electrical, IT, conveyor technology, building automation, fire detection, fire extinguishing, security, and lighting. The firm also offers BIM-based planning, advanced simulation, consulting, testing and commissioning, and post-occupancy monitoring and optimization, delivered alongside planning partners and architects to building owners, project developers, and corporate clients.

Product overview

brendel Ingenieure GmbH is an independent, owner-managed TGA (Technische Gebäudeausrüstung / Technical Building Equipment) engineering firm with over 60 years of experience. The company offers a comprehensive portfolio centered on TGA-Planung services covering all building trades (plumbing, heating, ventilation, HVAC, refrigeration, electrical, IT, conveyor technology, building automation, fire detection, fire extinguishing, security, and lighting). The core offerings are complemented by consulting services, BIM planning, simulation services (via subsidiary INVISCOtec GmbH), testing and commissioning, technical project management, and monitoring/operational optimization. The company also provides specialized services for building refurbishment, tenant fit-outs, and revitalization projects. The company operates as part of the brendel group, which includes subsidiary brendel Consulting GmbH (TGA consulting on a temporary basis) and INVISCOtec GmbH (simulation expertise). Services span multiple building types: office buildings, data centers, hospitals, exhibition halls, industrial buildings, hotels, residential buildings, and special buildings.

Differentiator

Problem solved

Functional benefit

Products and services

• TGA-Planung (Technical Building Equipment Planning) Comprehensive planning services for technical building equipment covering all trades: plumbing, heating, ventilation, air conditioning, refrigeration, electrical, IT, conveyor technology, building automation, fire detection, fire extinguishing, security technology, and lighting. Delivered across all HOAI service phases to building owners, project developers, and architects.
• Beratung (Consulting Services) Standalone advisory services including feasibility and location analyses, cost-effectiveness analyses, technical due diligence, dynamic-thermal building simulation, energy efficiency consulting, planning analysis and optimization, technical systems contracting consulting, and support for architects in competition procedures.
• BIM (Building Information Modeling) Services BIM-based planning methodology for cost security, variant comparisons, and optimized process flow in complex construction projects, leveraging the company's pioneer status in BIM and the bundled expertise of subsidiary INVISCOtec GmbH.
• Simulation Services Advanced simulation capabilities including dynamic-thermal building simulation, computational fluid dynamics (CFD), lighting simulation, electrical network calculation, lightning protection risk analysis, and 3D construction with collision detection. Delivered through subsidiary INVISCOtec GmbH.
• Testing and Commissioning Comprehensive testing scenarios for buildings including functional testing of technical systems, verification of proper calibration, capacity and alarm confirmation, and multi-day fallback scenarios for critical facilities such as datacenters.
• Technische Projektsteuerung (Technical Project Management) Technical project management services for construction projects with high technical building equipment requirements, including schedule and cost management, quality assurance, and coordination of all project participants.
• Monitoring und Betriebsoptimierung (Monitoring and Operational Optimization) Post-occupancy building monitoring and operational optimization services, including analysis of actual user behavior and consumption values, building control adjustments, and reduction of environmental impact and operating costs.
• Sanierung, Modernisierung, Refurbishment Renovation and modernization services for existing buildings, including technical due diligence, needs and inventory analysis, feasibility studies, energy-efficient technical concepts, and fire protection renovation.
• Mieterausbauten (Tenant Fit-outs) Individual technical solutions for tenant fit-outs with customized technology concepts covering acoustic solutions, room climate, lighting, and electrical/data connections.
• Revitalisierung (Revitalization) Revitalization services for new building use, including complete new usage concepts, repositioning buildings for changed purposes, and technical building equipment planning.

Quantifiable outcome

• PUE values in very good to excellent range for datacenter projects
• +2 more outcomes

Named customers11 records

Segments8 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Six partnerships are on record, tiered core, flagship, strategic and minor.

• INVISCOtec GmbHcoreTechnology or IntegrationDaughter company founded by brendel Ingenieure specializing in advanced simulation services. Provides dynamic-thermal building simulation, CFD airflow simulation, lighting simulation, electrical network calculation, and BIM consulting. Serves as the interface between the company and academic science.
• brendel Consulting GmbHcoreImplementation/ SI/ Consulting PartnerSister company offering TGA competence on demand. Functions as 'needs-oriented construction management' and serves as troubleshooter in construction crises. Became 100% subsidiary of brendel Ingenieure in 2021. Notable project: THE SQUAIRE at Frankfurt Airport.
• Deutsche Bank Park / Eintracht Frankfurt Stadion GmbHflagshipStrategic or Co-development PartnerSince 2022, brendel Ingenieure works closely with Deutsche Bank Park (Frankfurt Waldstadion) as planning office for technical building equipment. Expanded relationship to official partnership in 2024 for modernization measures.
• Technische Hochschule Mittelhessen (THM)strategicStrategic or Co-development PartnerDual study partnership through StudiumPlus program. Bachelor program in Civil Engineering, specialization in Technical Building Equipment. Teaching by brendel engineers in 'Electrical Building Systems Technology' module since 2014.
• Frankfurt University of Applied SciencesstrategicStrategic or Co-development PartnerTeaching module 'Electrical Engineering in Buildings' in the Real Estate and Integral Building Technology program since 2019.
• Hochschule DarmstadtminorStrategic or Co-development PartnerHistorical teaching collaboration in the EIT department (2007-2009 and 2015). Thesis supervision for students.

Scale indicators4 records

Recent moves11 records

Expansion highlights5 records

Broad incumbents

• Arup Group: Global engineering consultancy with a strong MEP, building services, and sustainability practice; comparable on integrated multidisciplinary building services planning for complex, high-performance buildings, though at much larger scale and geographic reach.
• Buro Happold Engineering: International engineering consultancy with building services (MEP) and sustainability planning practices; competes for complex building projects (datacenters, museums, cultural venues) with an integrated planning approach analogous to brendel's TGA-plus-BIM-plus-simulation model.
• Drees & Sommer SE: Large German engineering and consulting group with substantial MEP/TGA planning, energy, and sustainability capabilities; broader portfolio and significantly larger headcount, but overlaps directly with brendel on integrated TGA planning for complex buildings.
• Werner Sobek AG: Stuttgart-based engineering firm combining structural, facade, MEP, and sustainability design; overlaps with brendel on integrated, simulation-driven engineering for high-performance and sustainability-certified buildings.

Direct peers

• Schlösser & Partner Ingenieurbüro: German independent engineering consultancy providing TGA planning, technical due diligence, and building certification support; comparable service portfolio and target client base to brendel, particularly in office and commercial segments.
• ZWP Ingenieur-AG: Cologne-based MEP/TGA engineering consultancy offering integrated planning across heating, ventilation, AC, refrigeration, electrical, and fire protection for offices, hospitals, datacenters, and hotels — a close functional twin of brendel Ingenieure within the German market.
• DSK Ingenieure GmbH: Frankfurt-region MEP/TGA planning firm serving commercial, residential, healthcare, and industrial buildings; comparable in service scope (full TGA disciplines) and regional footprint to brendel.
• Ingenieurbüro Nordhorn GmbH: Independent German MEP/TGA planning office covering all technical building trades; comparable size band and service model, focused on commercial and institutional building projects in Germany.
• Hetzel + Tonne Ingenieurbüro GmbH: Frankfurt-area engineering firm offering TGA planning and consulting for offices, hospitals, and commercial buildings; direct overlap with brendel on geography, service mix, and target clients.
• S&P Gruppe (Sahlmann Planungsgesellschaft): German engineering consultancy providing MEP/TGA planning, structural engineering, and project management for building construction; comparable in integrated full-discipline planning and project-steering offering.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/brendel-ingenieure-gmbh

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries2 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 brendel Ingenieure GmbH