MATRIciel

What MATRIciel does

MATRIciel is a sustainable building engineering consultancy headquartered in Louvain-la-Neuve, Belgium, founded in 2005 by researchers from a university research cell who sought to apply academic tools to the building sector. The firm operates under the "MATRIciel by Oteis" brand following its March 2024 integration into the French Oteis Group, an independent consulting and engineering platform. With 20 collaborators, MATRIciel delivers specialist advisory and engineering services covering building energy performance, special techniques (HVAC, electrical, fluid dynamics), building physics, renewable energy, circular-economy materials, water management, biodiversity, and environmental certification (BREEAM, WELL, PEB). Its toolchain includes ENVI-MET for urban microclimate simulation using PET/UTCI indicators and OneClickLCA for life-cycle assessment.

The firm serves architects, property developers, public authorities, construction companies, and building owners across Belgium's three regions (Wallonia, Brussels, Flanders). Notable project mandates include the VIVALIA CHR Centre-Sud regional hospital (~90,000 m², 660 beds), ORES's 14,860 m² NZEB headquarters, Cofinimmo's Montoyer 10 BREEAM Outstanding/WELL Platinum renovation, Generali's heritage Ravenstein 36 deep renovation, Province de Namur's positive-energy administrative campus, Greenpeace Belgium's Smart Building Award–winning headquarters, and Baltisse's The Hub Liège fossil-fuel-free office. The firm also acts as a facilitator for the Walloon Region (with ICEDD) and for Bruxelles Environnement's Quartiers Durables program.

MATRIciel generates revenue through project-based professional services engagements with no publicly disclosed pricing, multi-year contracts, and direct B2B sales. Distribution is entirely direct, supplemented by public procurement participation and an educational program (ESSENciel) that builds partner pipeline. Its marketing relies on a multilingual website, LinkedIn presence, email newsletter, and earned media through industry awards, with multiple Green Solutions Awards (2018, 2019, 2021, 2022-2023, 2025) supporting brand visibility in the Belgian sustainable-construction market.

Name

MATRIciel

Legal name

MATRIciel SA

Website

https://matriciel.be

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Short description

MATRIciel by Oteis is a Belgian sustainable building engineering consultancy, founded in 2005 and now part of the French Oteis Group, serving architects, developers, and public authorities with energy, environmental certification, special techniques, and urban-comfort services across Wallonia, Brussels, and Flanders.

Ownership category

akta.pro rank

Product category

Sustainable Building Engineering Consulting

NAICS

Engineering Services (541330), Environmental Consulting Services (54162)

SIC

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

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industries

Circularity Consulting & Program Management (EPR, Design-for-Circularity, LCA) (EUAIANAH), Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD)

Keywords

• Sustainable building consulting
• Building energy performance
• Environmental certification services
• Special techniques engineering
• Urban comfort analysis

Headquarters

HQ city

Louvain-la-neuve

HQ country

Belgium

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Project-based consultancy services for sustainable building design, including energy studies, environmental certifications, special techniques engineering, and commissioning services. Revenue generated through professional service engagements with architects, developers, and public authorities.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

MATRIciel is a sustainable building engineering consultancy that delivers project-based consulting and engineering services covering building energy performance, special techniques (HVAC, electrical, fluids), environmental certification (BREEAM, WELL, PEB), building physics, circular economy, water management, biodiversity, and urban microclimate studies. Founded in 2005 by university researchers and now operating as MATRIciel by Oteis, the firm supports architects, property developers, public authorities, and building owners across Belgium from its base in Louvain-la-Neuve.

Product overview

MATRIciel by Oteis is a sustainable building engineering consultancy founded in 2005 by university researchers, now part of the French Oteis Group. The company operates as a single integrated consulting practice offering multiple specialized services organized around sustainable construction, including energy and environment consulting, special techniques engineering, building physics, circular economy consulting, water management, biodiversity services, and environmental certification support. Their portfolio spans residential, commercial, healthcare, educational, and urban planning sectors, with 20 collaborators based in Louvain-la-Neuve, Belgium. The company provides both core consulting services and specialized offerings such as urban comfort studies using ENVI-MET, Life Cycle Assessment using OneClickLCA, and PEB regulatory studies, alongside an educational program called ESSENciel for partner training.

Differentiator

Problem solved

Functional benefit

Products and services

• Energy and Environment Consulting
• Special Techniques Engineering
• Building Physics Services
• Circular Economy and Materials Consulting
• Water Management and Biodiversity Services
• Environmental Certification Support
• Urban Comfort Studies
• Life Cycle Assessment (LCA)
• PEB (Energy Performance of Buildings) Studies
• ESSENciel Training Program

Quantifiable outcome

• Achieved BREEAM 'Excellent' certification for multiple projects
• +4 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

16 partnerships are on record, tiered core and minor.

• ICEDD (Institut Congolais pour l'Environnement et le Développement Durable)coreStrategic or Co-development PartnerMATRIciel and ICEDD jointly provide services for the Walloon Region as facilitators for sustainable and circular construction/renovation. The partnership supports the implementation of a support system with a network of facilitators for sustainable/circular construction and renovation.
• Build SilenceminorStrategic or Co-development PartnerSubcontractor partner in the Walloon Region sustainable construction facilitator mission, specializing in acoustic solutions
• RoToRminorStrategic or Co-development PartnerSubcontractor partner specializing in reuse and circular economy in construction, collaborated on study days about material reuse
• NatagoraminorStrategic or Co-development PartnerSubcontractor partner in sustainable construction mission, specializing in nature and biodiversity
• SodeaminorStrategic or Co-development PartnerSubcontractor partner in sustainable construction mission
• TradecowallminorStrategic or Co-development PartnerSubcontractor partner in sustainable construction mission
• JansonminorStrategic or Co-development PartnerSubcontractor partner in sustainable construction mission
• The Legal SideminorStrategic or Co-development PartnerSubcontractor partner in sustainable construction mission
• Oteis GroupcoreStrategic or Co-development PartnerMATRIciel joined the French independent consulting and engineering group Oteis in March 2024. This partnership expands MATRIciel's ability to disseminate its expertise in energy, environment, and special techniques more widely, while maintaining continuity with its development strategy.
• BaltissecoreStrategic or Co-development PartnerPartnership with real estate developer Baltisse for The Hub Liège project (15,000 m² office building near Liège Guillemins station). MATRIciel provides special techniques engineering, PEB responsibility, and BREEAM assessment.
• Moury Construct SAminorImplementation/ SI/ Consulting PartnerConstruction partner for The Hub Liège project
• DDS+minorImplementation/ SI/ Consulting PartnerArchitecture firm partner for The Hub Liège project
• Bruxelles EnvironnementcoreImplementation/ SI/ Consulting PartnerPartnership with Bruxelles Environnement for promoting 'Circular Construction Sites' and urban development projects. MATRIciel conducted urban comfort studies for the City of Brussels under public procurement.
• archipelago architectsminorImplementation/ SI/ Consulting PartnerRegular architectural partner on multiple projects including ORES headquarters, CHR Centre-Sud, and Cité Administrative Huy
• LD2 ArchitectureminorImplementation/ SI/ Consulting PartnerArchitecture partner for Montoyer 10 renovation project
• Montois PartnersminorImplementation/ SI/ Consulting PartnerArchitecture partner for multiple projects including CBC bank headquarters and Ravenstein 36

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Ramboll: Danish-headquartered engineering, architecture, and consulting company with a recognized leadership position in sustainable buildings and decarbonization consulting in Europe. Comparable for high-complexity BREEAM, embodied carbon, and net-zero advisory engagements.
• Sweco: Northern European engineering and architecture consultancy with a growing buildings sustainability practice and significant Belgian presence via acquisitions. Competes for similar sustainable building certification and energy performance mandates.
• Royal HaskoningDHV: Dutch engineering consultancy with strong buildings, sustainability, and digital design practices. Relevant European peer for complex sustainable building and urban resilience projects where ENVI-MET-class microclimate analysis is required.
• Arcadis: Dutch-origin global design and consultancy firm with a dedicated sustainability and climate resilience practice. Comparable for BREEAM/energy consulting mandates in commercial real estate and for circular economy advisory in built environment projects.
• WSP: Global engineering professional services firm with a strong property and buildings sustainability practice across Europe. Competes for large-scale sustainable building certification and energy consulting mandates; relevant given WSP's Belgian presence and pursuit of BREEAM/LEED work.
• Tractebel (Engie): Belgian-headquartered global engineering consultancy (part of Engie group) with a large buildings and sustainable infrastructure practice. Directly comparable as a Brussels-based engineering firm competing for the same BREEAM/PEB-certified project mandates, but operates at vastly greater scale and offers a full multidisciplinary portfolio.

Others

• Oteis: French independent consulting and engineering group that acquired MATRIciel in March 2024. Listed as an "other" rather than peer because it is the parent organization — provides context for the platform, cross-selling, and capital structure that surrounds MATRIciel, but does not directly compete.

Regional players

• Boydens Engineering: Belgian multidisciplinary engineering firm specializing in building services (HVAC, electricity, plumbing) and sustainable construction. Comparable as a Belgian peer for special techniques engineering services supporting BREEAM/PEB projects, though with a more conventional technical orientation.

Direct peers

• Bopro: Belgian sustainability and circular economy consultancy focused on built environment certifications (BREEAM, GRO, circularity assessment). Most direct Belgian peer in terms of size, scope, and target client base for sustainability certification and circular construction advisory.
• VK architects+engineers: Belgian multidisciplinary engineering and architecture firm with strong sustainability, energy performance, and BREEAM expertise. Direct peer operating in the same Belgian market, serving similar architects, developers, and public-sector clients on sustainable building projects.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/1803529

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 MATRIciel