INNAX
INNAX is a Dutch engineering and sustainability consultancy decarbonizing the built environment for housing corporations, property owners, healthcare, education, and commercial real estate clients through advisory, Energy as a Service subscriptions, and proprietary monitoring tools across the Netherlands.
- Company typePrivate
- Founded1992
- HeadquartersVeenendaal, Netherlands
- Headcount251–500
- GTM typeB2B
- OfferingServices
What INNAX does
INNAX is a Dutch engineering and sustainability consultancy founded in 1992 and headquartered in Veenendaal, focused on decarbonizing the built environment across the Netherlands. The firm serves property owners, housing corporations (woningcorporaties), healthcare institutions, educational institutions, commercial real estate owners, and project developers with an integrated offering that spans the entire sustainability lifecycle: ambition setting, data analysis, planning, financing, realization, and long-term operation. Its core solutions are organized around six pillars (Grip op energie, Vastgoed geregeld, Woningkwaliteit op orde, Toekomstvaste gebouwen, Toekomstvaste woningen, Toekomstvast bouwen), supplemented by proprietary tools such as the Paris Proof Monitor Woningen (portfolio decarbonization visualization), EAASY Energy as a Service (15-30 year subscription-based energy outsourcing), Delen Duurzame Energie (collective solar participation), GACS building automation, and Brandveiligheidsdesk fire safety consulting.
Underlying technology is domain-specialized rather than core-tech: data-driven energy monitoring, building automation and control systems, subsidy navigation (SDE++, ISDE, DUMAVA, Flex-e), and regulatory compliance tooling tailored to Dutch frameworks (NTA8800, GACS-verplichting, Wet collectieve warmte). The company operates through eight wholly-owned B.V. subsidiaries covering measurement (INNAX Meten), residential (INNAX Woningen), buildings (INNAX Gebouwen), sustainable energy (INNAX Duurzame Energie), and regional coverage (Noord, Zuid, Baarn, Goes).
INNAX generates revenue through three streams: professional consultancy services (project-based advisory and energy audits), subscription-based Energy as a Service contracts under the EAASY brand (multi-decade recurring revenue with INNAX retaining asset and operational responsibility), and the Energie bv structure (helping clients establish separate, financially ring-fenced energy entities with potential fiscal advantages). Go-to-market is B2B enterprise field sales, complemented by content-led thought leadership (Kennisbank, podcast 'Duurzaam corporatieland', webinars). Named enterprise customers include Philips, Cordaan, NOPagrowind, Woonservice IJsselland, Rondom Wonen, and Woonstede. In June 2026 INNAX announced it will become part of engineering and consultancy firm Movares, and the firm has executed a sustained roll-up of seven acquisitions between 2019 and 2025.
INNAX firmographics
Firmographics- Name
- INNAX
- Legal name
- INNAX Gebouw en Omgeving B.V.
- Website
- https://innax.nl
- Company type
- Private
- Founded year
- 1992
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- INNAX is a Dutch engineering and sustainability consultancy decarbonizing the built environment for housing corporations, property owners, healthcare, education, and commercial real estate clients through advisory, Energy as a Service subscriptions, and proprietary monitoring tools across the Netherlands.
- Ownership category
- akta.pro rank
INNAX industry classification
Industry- Product category
- Sustainability and Energy Consultancy for Built Environment
- NAICS
- Engineering Services (54133), Computer Systems Design Services (541512)
- SIC
- Services-Engineering, Accounting, Research, Management (8700), Services-Management Consulting Services (8742)
- akta.pro primary industry
- Performance Contracting & Energy-as-a-Service (EaaS) for Buildings (BPABAGAN)
- akta.pro secondary industry
- EHS Management Systems & ISO Consulting (ISO 14001/45001) (BPAHAJAF)
Keywords
Where INNAX is headquartered
LocationHeadquarters
- HQ city
- Veenendaal
- HQ country
- Netherlands
- HQ region
- Europe
Offices3 records
Markets served
INNAX business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Energy as a Service (EAASY): Full-service energy solution where INNAX designs, finances, realizes and exploits energy systems for clients over 15-30 year periods. Clients pay a subscription fee and receive guaranteed energy performance without capital investment.
- Professional Consultancy Services: Advisory services covering sustainability planning, energy audits, building automation, fire safety compliance, and renovation consulting. Services include data analysis, plan development, and project management.
- Energy bv Structure: INNAX helps clients establish separate energy units (Energie bv) that can be legally and financially separated, enabling separate financing and potential tax advantages while maintaining focus on core activities.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels7 records
INNAX product offering
Product offeringCore offering
INNAX is a Dutch engineering and sustainability consultancy that helps property owners, housing corporations, healthcare and educational institutions decarbonize their building portfolios. The company delivers end-to-end services spanning sustainability strategy, data analysis, financing, realization, and long-term operation, including an Energy as a Service subscription model (EAASY) covering design, financing, realization, and exploitation of energy systems for periods up to 30 years.
Product overview
INNAX is a sustainable building and energy consultancy offering an integrated portfolio of solutions for decarbonizing buildings and housing portfolios. The offering spans advisory, financing, realization, and operation services organized around six core solutions: Grip op energie (energy management), Vastgoed geregeld (real estate management), Woningkwaliteit op orde (housing quality), Toekomstvaste gebouwen (future-proof buildings), Toekomstvaste woningen (future-proof homes), and Toekomstvast bouwen (future-proof construction). The EAASY subscription model delivers these as a bundled Energy as a Service offering. Supporting tools include the Paris Proof Monitor Woningen for portfolio visualization and Delen Duurzame Energie for collective solar participation. INNAX operates through multiple divisions including INNAX Meten, INNAX Woningen, INNAX Gebouwen, and INNAX Duurzame Energie.
Differentiator
Problem solved
Functional benefit
Brands
- EAASY: Energy as a Service subscription model solution enabling organizations to outsource sustainability through an abonnementsmodel (subscription model).
- Paris Proof Monitor Woningen
Products and services
- Grip op energie Energy management solution providing insight and control over energy consumption and performance for building owners.
- Vastgoed geregeld
- Woningkwaliteit op orde
- Toekomstvaste gebouwen
- Toekomstvaste woningen
- Toekomstvast bouwen
- EAASY (Energy as a Service) Energy as a Service subscription model providing complete outsourcing of sustainability and energy supply, including design, realization, financing, and operation for periods up to 30 years.
- Paris Proof Monitor Woningen Digital monitoring tool enabling housing corporations to dynamically calculate and visualize the sustainability route of their housing stock toward Paris Proof targets for 2030 and 2050.
- Delen Duurzame Energie Sustainable energy sharing service enabling housing corporations to maximize use of rooftops for solar energy generation and offer residents participation in collective renewable energy.
- Brandveiligheidsdesk Fire safety consulting and management services covering inspection, maintenance, and certification of safety installations such as fire alarm, emergency lighting, gas detection, and evacuation systems.
- Energie bv Energy company setup service helping organizations establish separate legal energy units for financing and operating sustainable energy installations with potential fiscal benefits.
Quantifiable outcome
- Guaranteed energy savings through 15-30 year Energy as a Service contracts
- +1 more outcomes
Companies that use INNAX
Customer profileNamed customers7 records
Segments6 records
Ideal customer profiles4 records
INNAX technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
INNAX partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core and minor.
- MovarescoreINNAX announced becoming part of engineering and consultancy firm Movares. This power union increases their capacity in the energy transition. The partnership combines INNAX's sustainability expertise with Movares' engineering and advisory capabilities to create a stronger market position in Dutch sustainable building.
- NOAHH | Network Oriented ArchitecturecoreArchitecture firm part of the construction team for Christelijk Lyceum Veenendaal project. Collaborated on the design of a nearly energy-neutral school building with emphasis on circularity and reuse.
- HEVOminorPart of the construction team for the Christelijk Lyceum Veenendaal project, contributing project management and development expertise.
- EX InteriorsminorInterior design partner in the construction consortium for the Christelijk Lyceum Veenendaal project.
- ZRiminorEngineering consultancy partner in the Christelijk Lyceum Veenendaal project team.
- Pieters BouwtechniekminorConstruction engineering partner contributing technical expertise to the school building project.
- Burgland BouwcoreMain construction contractor for the Christelijk Lyceum Veenendaal project, executing the building work in collaboration with INNAX's sustainability expertise.
- KPMSminorConstruction advisory firm KPMS announced partnership with INNAX in December 2023 to combine expertise in sustainable construction advisory.
Scale indicators1 record
Recent moves6 records
Expansion highlights6 records
INNAX competitors and assessment
Company assessmentBroad incumbents
- Heijmans: Major Dutch construction and real estate company that increasingly bundles energy services and sustainable renovation offerings. Competes with INNAX in delivering decarbonization and energy services to Dutch housing corporations and commercial property owners.
- Witteveen+Bos: Dutch engineering and consultancy firm with established energy transition and sustainable building capabilities. Comparable to INNAX in serving Dutch institutional and infrastructure clients on sustainability and energy engineering projects.
- ENGIE Nederland: Dutch arm of global energy services giant ENGIE, providing energy-as-a-service, building energy management, and sustainability solutions. Directly comparable to INNAX's EAASY offering and building automation (GACS) practice, but with significantly larger balance sheet and international capabilities.
- Sweco Nederland: Nordic-origin engineering consultancy with substantial Dutch operations covering sustainable buildings, energy, and infrastructure. Competes with INNAX in Dutch sustainability advisory for public and commercial real estate clients.
- Royal HaskoningDHV: Large Dutch-headquartered global engineering consultancy with deep sustainability, buildings, and energy transition practices. Competes with INNAX for large Dutch sustainability and building performance mandates, but at far greater scale and international breadth.
- Eneco: Major Dutch energy company with growing B2B services portfolio including energy-as-a-service and sustainable building solutions for commercial and institutional customers. Comparable to INNAX in Dutch building energy services, though operating at materially larger scale.
- Arcadis: Dutch-founded global design, engineering, and consultancy firm with a strong sustainability and buildings practice in the Netherlands. Competes with INNAX on Dutch building decarbonization, energy performance, and sustainability mandates at the larger end of the market.
Direct peers
- Deerns: International building services engineering consultancy with strong Dutch operations in HVAC, energy, and sustainable building design. Comparable to INNAX in serving Dutch commercial real estate and institutional clients with energy-focused engineering services.
- DGMR: Dutch engineering consultancy specialized in building physics, acoustics, and fire safety. Overlaps directly with INNAX's fire safety consulting and building performance advisory practice for Dutch property owners.
- Movares: Dutch engineering and consultancy bureau covering infrastructure, buildings, and energy transition. INNAX's announced parent (June 2026 combination), making it the closest direct peer in Dutch sustainable building and energy engineering consulting.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
INNAX social profiles
Digital presenceINNAX financial estimates
Financial estimateRevenue estimate
Valuation estimate
INNAX leadership team
Management profileNumber of profiles
Profiles4 records
INNAX subsidiaries and ownership
Company hierarchySubsidiaries8 records
INNAX funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
INNAX M&A and investment
M&A and investmentM&A7 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about INNAX
What does INNAX do?
INNAX is a Dutch engineering and sustainability consultancy that helps property owners, housing corporations, healthcare and educational institutions decarbonize their building portfolios. The company delivers end-to-end services spanning sustainability strategy, data analysis, financing, realization, and long-term operation, including an Energy as a Service subscription model (EAASY) covering design, financing, realization, and exploitation of energy systems for periods up to 30 years.
Is INNAX a public or private company?
INNAX is a private company. It is classified as corporate owned and is currently operating.
When was INNAX founded?
INNAX was founded in 1992. It employs 251 to 500 people.
Where is INNAX based?
INNAX is headquartered in Veenendaal, Netherlands, in the Europe region.
How does INNAX make money?
Three revenue lines are on record. Energy as a Service (EAASY) is the primary driver. The others are professional Consultancy Services and energy bv Structure.
Who are INNAX's main competitors?
Broad incumbents on record are Heijmans, Witteveen+Bos, ENGIE Nederland, Sweco Nederland, Royal HaskoningDHV, Eneco and Arcadis. Direct peers are Deerns, DGMR and Movares.
Does INNAX have an API?
No public API is recorded for INNAX.
What industry is INNAX in?
INNAX's product category is Sustainability and Energy Consultancy for Built Environment. Its primary akta.pro industry code is BPABAGAN, Performance Contracting & Energy-as-a-Service (EaaS) for Buildings, with a secondary code of BPAHAJAF, EHS Management Systems & ISO Consulting (ISO 14001/45001). Its NAICS code is 54133 and its SIC code is 8700.