What Innius DÖ GmbH does

Innius DÖ GmbH is a Dresden-headquartered, family-run German engineering office (Ingenieurbüro) specializing in Technical Building Equipment (TGA – Technische Gebäudeausrüstung). Founded in 1990/1991, it operates as part of the INNIUS Group alongside three wholly-owned operating subsidiaries (INNIUS GTD GmbH, INNIUS IBJ GmbH, INNIUS RR GmbH) and a holding entity (INNIUS GmbH), delivering integrated planning and consulting services across six German locations (Dresden, Berlin, Leipzig, Rosbach, Giessen, Bautzen/Cölln) with more than 200 specialist engineers.

The firm's core offerings span two service lines. Planning (Planung) covers building technology (HVAC, sanitation), electrical engineering, energy management, EnEV certification, and an advanced simulation suite including thermal building simulation, thermal plant simulation, CFD/flow simulation, fire simulation, building airflow analysis, and daylight simulation. Consulting (Consulting) adds technical-economic controlling, energy concepts and optimization, fire and safety concepts, measurements and functional verification, BIM-based 3D planning, viability calculations, architectural lighting design, municipal heat planning (Kommunale Wärmeplanung), DIN V18599 energy consulting for non-residential buildings, and BEG funding advisory. The underlying technology is rooted in BIM methodology using AutoCAD, Revit, and specialized add-ons (LVZ, Tricad, C.A.T.S.), with project delivery across all HOAI planning phases.

The business model is project-based professional services: engagements are won through direct client relationships and competitive bidding, billed under HOAI fee structures on a quote-driven, custom-scoped basis. The customer base is concentrated in German public-sector and institutional clients — government ministries, federal/state libraries, universities and research institutes, hospitals, airports, cultural institutions, and select private developers — across verticals including cultural heritage, healthcare, transportation infrastructure, commercial real estate, education, residential, and industrial facilities. Quantified outcomes referenced include energy savings exceeding 25–30% below EnEV standards, DGNB Gold and LEED Gold certifications on supported projects, and a PUE target of ≤1.3 at TU Dresden's high-performance computing center. Marketing is primarily through project portfolio and selective university recruiting (e.g., Connecticum, MINT education support) rather than paid acquisition.

Name

Innius DÖ GmbH

Legal name

INNIUS DÖ GmbH

Website

https://innius.de

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

51–100 employees

Short description

Innius DÖ GmbH is a family-run German engineering office specializing in technical building equipment (TGA) planning and consulting, including BIM, CFD, thermal, and fire simulation, serving public-sector and institutional clients across six German locations.

Ownership category

akta.pro rank

Product category

Engineering Services for Technical Building Equipment (TGA)

NAICS

Architectural, Engineering, and Related Services (5413), Management, Scientific, and Technical Consulting Services (5416), Other Scientific and Technical Consulting Services (54169)

SIC

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

akta.pro primary industry

Energy Systems & Power Engineering Consulting (BPAHAIAG)

akta.pro secondary industries

Testing, Inspection, Certification & Commissioning (TICx) Technical Services (BPAHAIAL), Air Quality & Emissions Management (BPAHAJAI)

Keywords

• Technical building equipment
• Building simulation services
• BIM planning services
• Energy consulting services
• Fire protection consulting

Headquarters

HQ city

Dresden

HQ country

Germany

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Planning Services: Project-based engineering and consulting services for technical building equipment (TGA) covering all HOAI planning phases, including planning, supervision, simulations, and technical-economic controlling
2. Consulting Services: Technical consulting including energy concepts, fire protection concepts, building automation, municipal heat planning, and energy consulting for non-residential buildings

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Innius DÖ GmbH is an engineering office (Ingenieurbüro) for technical building equipment (Technische Gebäudeausrüstung, TGA) that delivers integrated planning and consulting services across all HOAI planning phases. Its planning services cover heating, ventilation, air-conditioning and sanitation (Gebäudetechnik), electrical engineering, energy management, EnEV certification, and a suite of building simulations (thermal building, thermal plant, CFD airflow, fire, light). Its consulting portfolio includes technical-economic controlling, energy concepts and optimization, safety and fire protection concepts, measurements and functional verification, viability calculations, BIM/3D planning, design lighting planning, municipal heat planning, DIN V18599 energy consulting, and funding advice under the BEG program.

Product overview

Innius DÖ GmbH is an engineering office (Ingenieurbüro) for Technical Building Equipment (TGA - Technische Gebäudeausrüstung) offering integrated planning and consulting services across Germany from six locations. The company operates as a unified service portfolio rather than a platform-plus-modules architecture. The core offering consists of Planning Services (Planung) including building technology, various simulation services (thermal building simulation, thermal plant simulation, flow/CFD simulation, fire simulation, building airflow analysis, light simulation), energy management, electrical engineering, and energy certification. The Consulting Services (Consulting) complement the planning offerings with technical-economic controlling, energy concepts and optimization, safety concepts, fire protection concepts, measurements and function verification, viability calculations, BIM (Building Information Modeling), design lighting planning, municipal heat planning, energy consulting per DIN V18599, and funding advice. Projects span diverse sectors including healthcare, education, cultural institutions, airports, data centers, and commercial buildings.

Differentiator

Problem solved

Functional benefit

Products and services

• Gebäudetechnik (Building Technology) Planning Technical building equipment (TGA) planning covering heating, ventilation, air conditioning and sanitation systems for a wide range of building types — for enterprise and public-sector clients across all HOAI planning phases.
• Gebäudesimulation (Building Simulation) Computer-based building simulation services that analyze and optimize building performance, energy efficiency and comfort parameters, encompassing thermal, thermal plant, CFD, fire, building airflow and light simulations.
• Strömungssimulation (CFD / Flow Simulation) Computational Fluid Dynamics (CFD) analysis of airflow patterns, ventilation efficiency and indoor air quality, including local determination of temperature, humidity, radiation and air velocity in selected rooms.
• Brandsimulation (Fire Simulation) Fire simulation services for smoke extraction planning, fire safety analysis and evacuation scenario modeling.
• Thermische Gebäudesimulation (Thermal Building Simulation) Thermal building simulation for analyzing temperature distribution, heat transfer and energy behavior in building structures, used for example to determine conditions and loads in selected museum rooms.
• Thermische Anlagensimulation (Thermal Plant Simulation) Simulation of thermal plant systems including heating, cooling and ventilation equipment performance.
• Lichtsimulation (Light Simulation) Daylight and artificial lighting simulation for visual comfort analysis and energy-efficient lighting design.
• Energiemanagement (Energy Management) Energy concept development, optimization and management planning for sustainable building operations.
• Elektrotechnik (Electrical Engineering) Electrical systems planning including power distribution, lighting, communication and security systems.
• EnEV Nachweis (Energy Saving Ordinance Certification) Energy performance certification and compliance verification according to the German Energy Saving Ordinance (EnEV).
• Technisch-Wirtschaftliches Controlling (Technical-Economic Controlling) Cost control and technical supervision services ensuring that projects meet budgetary and quality objectives.
• Energiekonzepte und -optimierung (Energy Concepts and Optimization) Strategic energy planning and optimization services aimed at reducing operational costs and environmental impact.
• Brandschutzkonzepte (Fire Protection Concepts) Fire protection concept development including prevention, detection and suppression system planning.
• Sicherheitskonzepte (Safety Concepts) Development of comprehensive safety concepts for buildings including risk assessment and mitigation strategies.
• Messungen und Funktionsnachweise (Measurements and Function Verification) Technical measurements and functional verification services to confirm that building systems meet design specifications.
• Wirtschaftlichkeitsberechnungen (Viability Calculations) Cost-benefit analysis and financial feasibility studies for building projects and system investments.
• Building Information Modeling (BIM) 3D BIM planning services for an integrated digital representation of physical and functional building characteristics, supporting clash detection and multi-disciplinary coordination.
• Design Lichtplanung (Design Lighting Planning) Architectural lighting design services combining aesthetic and functional requirements for optimal illumination.
• Kommunale Wärmeplanung (Municipal Heat Planning) Municipal-scale heat planning services for district heating networks and renewable energy integration.
• Energieberatung für Nichtwohngebäude (DIN V18599) Energy consulting services for non-residential buildings following the DIN V18599 standard for energy efficiency.
• Beratung zu Fördermöglichkeiten (Funding Advice) Advisory services for federal funding programs (BEG) supporting energy efficiency and building modernization projects.

Quantifiable outcome

• Energy savings exceeding 25-30% below EnEV standards achieved in multiple projects
• +3 more outcomes

Named customers20 records

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Stolperfrei.digital ConsultingminorOthersWebsite development and technical maintenance partner for the INNIUS corporate website

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Drees & Sommer SE: Large German engineering and consulting firm with extensive TGA, building simulation, energy, and sustainability practices. Overlaps with INNIUS on complex building services planning but operates at significantly larger scale across multiple disciplines.
• Arcadis Germany: Global engineering and design consultancy with German operations spanning buildings, mobility, and sustainability. Competes with INNIUS on large public infrastructure and complex building projects.
• Sweco GmbH: German subsidiary of Nordic engineering consultancy Sweco, providing building services, energy, and sustainability consulting. Operates at much larger scale and competes on complex TGA and infrastructure projects in Germany.
• Ramboll Germany: Danish-headquartered engineering consultancy with German offices providing building services, energy, and fire engineering. Competes with INNIUS for complex public-sector and heritage projects.

Direct peers

• SOCOTEC Deutschland: German TIC and engineering services firm covering building services planning, testing, and inspection. Directly competes with INNIUS's measurement and verification service lines and broader TGA planning portfolio.
• Waldhauser + Hermann Ingenieurbüro GmbH: German TGA engineering firm offering HVAC, electrical, and energy planning across multiple locations. Comparable mid-market competitor focused on building services engineering and BIM-based planning.
• ZWP Ingenieur-AG: Mid-sized German engineering firm focused on technical building equipment (TGA) planning, including HVAC, electrical, and energy concepts. Closest direct competitor to INNIUS in the German HOAI-based TGA planning market.
• Transsolar Energietechnik GmbH: Stuttgart-based engineering firm specializing in thermal building simulation, climate engineering, and energy concepts. Strongly comparable to INNIUS's thermal simulation and CFD service offerings for museums and high-performance buildings.

Regional players

• Anshin & Nobile Ingenieurgesellschaft mbH: Mid-sized German TGA planning firm based in Saxony/Thuringia region. Comparable in scale and service scope to INNIUS, with overlap in regional public-sector and healthcare projects.

Emerging players

• Werner Sobek AG: Stuttgart-based engineering firm focused on sustainable building design, energy concepts, and MEP coordination. Comparable to INNIUS on complex, high-performance buildings and simulation-driven design.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/innius.de

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries4 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 Innius DÖ GmbH