Tribu Energie

What Tribu Energie does

Tribu Energie is a privately-held French engineering consultancy (bureau d'études) founded in 2002 and headquartered in Paris, with regional offices in Rennes and Lyon. The firm specializes in energy efficiency and sustainable development across the building lifecycle, serving property developers, building owners, architects, public authorities, and industrial clients with services spanning AMO (project owner assistance), MOE (design and site supervision) for new construction and rehabilitation, energy audits, dynamic thermal simulation, life-cycle assessment (ACV), commissioning of technical installations, and support for environmental certifications including Effinergie, BEPOS, HQE, BREEAM, LEED, WiredScore, R2S, Well, and Osmoz.

The firm is anchored by a 23-engineer team with more than 30 years of combined building-energy experience and complementary specialties in thermal regulation, low-carbon and positive-energy design, HVAC, ventilation, lighting, summer comfort, renewable energy, and infrared thermography. Its technical stack combines third-party simulation software (Pleiade-Comfie, Design Builder, BBS Slama, Perrenoud, PVSYST, WUFI, Dialux, EQUER) with proprietary internally developed modeling tools for Canadian wells, double-skin facades, natural ventilation, environmental assessment of existing buildings (OAEBE), and design-phase energy optimization. The firm holds the definitive OPQIBI 1332 thermal-regulation qualification, OPQIBI 1305 audit qualification, ISO 9001 and ISO 14001 certifications, Certivéa Effinergie Référent and Cerqual Maître d'Œuvre Référent recognitions, and BREEAM Assessor status.

Tribu Energie generates revenue primarily through professional services fees on project-based contracts, supplemented by professional training delivered through CSTB Formation, Groupe Moniteur, and GAMBA Formation partnerships, and licensing/royalty income from calculation tools developed for industrial partners including Saint Gobain, CERIB, Daikin, and Knauf. The firm is founder-led under President Nathalie Tchang, with no external investment or parent company, and operates with a hybrid go-to-market combining direct B2B enterprise engagement and B2C training delivery. Notable project references include the 35,000 m² positive-energy Green Office in Rueil-Malmaison, TOTAL@Saclay (8,000 m² offices and laboratories), Hôpitaux de Paris campus development, Ville de Paris circular-economy rehabilitation, and the Honfleur Normandy Outlet (first BREEAM-assessed project).

Name

Tribu Energie

Legal name

Tribu Energie

Website

https://tribu-energie.fr

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

Tribu Energie is a French engineering consultancy founded in 2002, specializing in energy-efficient and sustainable building design, regulatory compliance, and environmental certification. It serves developers, architects, public authorities, and industrial clients across France with 23 engineers based in Paris, Rennes, and Lyon.

Ownership category

akta.pro rank

Product category

Building Energy Efficiency Consulting

NAICS

Architectural, Engineering, and Related Services (5413), Engineering Services (541330), Environmental Consulting Services (54162), Other Scientific and Technical Consulting Services (54169)

SIC

Services-Engineering Services (8711), Services-Computer Programming Services (7371)

akta.pro primary industry

Energy Systems & Power Engineering Consulting (BPAHAIAG)

akta.pro secondary industries

Systems Engineering & Technical Program Management (BPAHAIAI), Product Design & Mechanical Engineering Consulting (BPAHAIAJ), EHS Management Systems & ISO Consulting (ISO 14001/45001) (BPAHAJAF)

Keywords

• Energy efficiency consulting
• Building thermal studies
• Sustainable building design
• Energy audit services
• Environmental certification

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering consultancy services: Professional services revenue from energy studies, building design assistance, project management support, audits, and commissioning services for residential, tertiary, and industrial buildings
2. Training and communication services: Professional training modules delivered through CSTB Formation, Groupe Moniteur, and GAMBA Formation partnerships covering thermal regulations, building performance, and energy efficiency topics
3. Software and tool development: Development of specialized calculation tools and software for energy evaluation, commissioned by industrial partners and professional organizations such as Saint Gobain, CERIB, Daikin, and Knauf

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Tribu Energie is a French engineering consultancy (bureau d'études) that delivers energy efficiency and sustainable development services for the building sector. Its core offerings span project management assistance (AMO), design and supervision (MOE) for construction and rehabilitation, energy audits, regulatory thermal studies (RT2012/RTex), dynamic thermal simulation, life cycle assessment (ACV), E+C- experimentation studies, and support for environmental certifications including Effinergie, BEPOS, HQE, BREEAM, LEED, WiredScore, R2S, Well, and Osmoz. The firm complements its consulting work with professional training modules and internally developed calculation tools for industrial partners such as Saint Gobain, CERIB, Daikin, and Knauf.

Product overview

Tribu Energie is a French engineering consulting firm (bureau d'études) founded in 2002, specializing in energy efficiency and sustainable development in buildings. It is NOT a software product company but a service-based consultancy offering a comprehensive portfolio of engineering services organized around its core offering: energy and environmental studies for buildings. The portfolio spans the full building lifecycle from conception through operation. Core service clusters include: (1) Project management assistance and design services (AMO/MOE for construction and rehabilitation) delivered as consulting engagements; (2) Regulatory compliance studies including RT2012, RTex, E+C- experimentation, and DPE certifications; (3) Specialized studies including dynamic thermal simulation, life cycle assessment (ACV), grey energy analysis, infrared thermography, and renewable energy feasibility; (4) Building certification support for labels including Effinergie, BEPOS, HQE, BREEAM, LEED, WiredScore, R2S, Well, and Osmoz; (5) Measurement and commissioning services using proprietary equipment; (6) Internally developed calculation and modeling tools (Canadian well, double-skin facade, OAEBE, energy optimization); (7) Circular economy AMO services; (8) Tertiary decree technical file preparation; (9) Professional and public-facing calculation tools developed for industrial partners (Saint Gobain, CERIB, Daikin, Knauf, copper industry); and (10) Sectoral training modules through CSTB, Groupe Moniteur, and GAMBA. The firm operates from three offices in Paris, Rennes, and Lyon with 23 engineers.

Differentiator

Problem solved

Functional benefit

Products and services

• Assistance à Maîtrise d'Ouvrage (AMO) Project owner assistance for sustainable development and high energy performance across residential and tertiary building projects, covering site analysis, program writing, design team selection, project phases, contractor selection, and consumption monitoring. Targeted at property developers, public authorities, and building owners.
• Maîtrise d'Œuvre (MOE) - Construction Full design and site supervision for energy and sustainable development in new construction projects, including building conception support, installation sizing, construction monitoring, and project reception, covering CVC, plumbing, and electrical systems. Targeted at architects and project owners on new-build energy-efficient projects.
• Maîtrise d'Œuvre (MOE) - Réhabilitation Design and site supervision for rehabilitation projects, including installation upgrades, technical descriptions, plans, pre-diagnostics, comprehensive energy audits, and infrared thermography-based assessments adapted to each construction era. Targeted at owners undertaking energy renovation of existing buildings.
• Audit Énergétique Energy audits for residential and tertiary buildings, co-ownership properties eligible for financial aid, and large-company facilities, including DPE (energy performance certificates), energy orientation advice, pre-diagnostics, and detailed audits with measurement campaigns. Targeted at co-ownership associations, large companies, and individual building owners.
• Commissionnement des Installations Techniques Commissioning of complex technical installations including heating, water distribution, lighting, ventilation, air conditioning, GTB, and cold rooms, ensuring continuity of performance from construction through operation. Targeted at building owners and operators seeking verified performance outcomes.
• Formation et Communication Professional training modules covering building energy performance, thermal regulations, DPE, high-performance building design, and rehabilitation, delivered through CSTB Formation, Groupe Moniteur, and GAMBA Formation partnerships. Targeted at engineers, architects, urban planners, property owners, and diagnostic professionals.
• Conseil, Stratégie et Expertise Strategic consulting for public authorities on thermal regulations, ADEME and CSTB expertise, industrial positioning, real estate portfolio energy planning, and local authority sustainable building strategies. Targeted at ministries, agencies, and large real estate portfolios.
• Études et Attestations RT2012 / RTex Regulatory thermal studies verifying RT2012 compliance (Bbio, Cep, Tic requirements) and existing building thermal regulations, including energy performance attestations for building permits. Targeted at architects and project owners requiring regulatory compliance for construction permits.
• Études ACV (Analyse du Cycle de Vie) Life cycle assessment (LCA) studies evaluating environmental impacts of buildings across the full cycle, including FDES (Environmental and Health Declaration Sheets) compliance and carbon footprint analysis. Targeted at developers and project owners pursuing environmental certification or carbon assessment.
• Études E+C- (Expérimentation Énergie-Carbone) Energy-Carbon experimentation studies for positive energy and low-carbon buildings, including BilanBEPOS calculations, greenhouse gas emissions assessments (Eges, EgesPCE), and Carbon 1/Carbon 2 level certifications. Targeted at developers participating in the E+C- regulatory pilot.
• Simulation Thermique Dynamique Dynamic thermal simulations using Pleiade-Comfie and Design Builder software for building thermal performance analysis, summer comfort evaluation, and installation sizing optimization. Targeted at architects and developers requiring detailed thermal behavior modeling.
• Labels: Effinergie, BEPOS, HQE, BREEAM, LEED, WiredScore, R2S, Well, Osmoz Certification support for major building sustainability and performance labels including Effinergie, BEPOS Effinergie, NF HQE, BREEAM, LEED, WiredScore, R2S, Well, and Osmoz certifications. Targeted at developers and project owners pursuing recognized environmental certifications.
• Audit Grandes Sociétés Large-company energy audits per EU directive 2012/27/EU covering buildings, processes, and transport, with OPQIBI certification (qualification 1305) and optional ISO 50001 certification support. Targeted at large enterprises and industrial clients subject to mandatory audit obligations.
• Audit Copropriétés Co-ownership energy audits and comprehensive global audits per ADEME specifications, including OPQIBI certification (qualification 1305) for qualifying buildings over 50 lots with collective heating. Targeted at co-ownership associations and condominium managers.
• Études Énergies Renouvelables Renewable energy feasibility studies for solar thermal, photovoltaic, wood heating, cogeneration, geothermal heat pumps, and district heating systems, including regulatory feasibility study compliance for buildings over 1000m². Targeted at developers and project owners integrating renewable energy systems.
• AMO Économie Circulaire Circular economy advisory services including needs identification, training, reuse and recycling feasibility studies, circular economy objective definition, DCE clause writing, environmental and economic assessments, delivered for reference projects such as Paris 19e rehabilitation and the TOTAL@Saclay research center. Targeted at public and private project owners integrating circular economy practices.
• ENRABF - Patrimoine Architectural Expertise on reconciling energy savings with architectural heritage conservation, including ABF (Architectes des Bâtiments de France) technical fact sheets for facade, window, solar protection, heating/ECS, roof, and ventilation renovations. Targeted at project owners and architects working on protected heritage buildings.
• AMO Aménagement Durable - Urbanisme Sustainable urban planning assistance covering climate analysis, urban comfort optimization, energy distribution studies, and renewable energy potential assessment at the neighborhood and district scale. Targeted at local authorities, urban planners, and developers of urban-scale projects.
• Instrumentation et Mesures Performance measurement campaigns using specialized equipment including permeascope, blower-door air tightness testers, duct leakage testers, manometers, anemometers, infrared cameras, combustion analyzers, CO2 probes, hygrometers, luxmeters, weather stations, energy meters, and temperature data loggers. Targeted at building owners and operators requiring on-site performance verification.
• Logiciels Développés en Interne Internally developed software tools including Canadian well modeling, double-skin facade modeling, natural ventilation installation modeling, environmental approach tool for existing buildings (OAEBE), renewable energy feasibility studies, and optimization tools for design-phase energy and environmental performance. Targeted at industrial partners and professional organizations such as Saint Gobain, CERIB, Daikin, and Knauf.
• Outils d'Évaluation - Professionnels et Grand Public Professional and public evaluation tools including RT2012 tools for Saint Gobain, consumption calculations (3CL), Promodul BAO (CERIB), BBClic (CERIB), copper Eco-simulator, Knauf RT2005 simulator, and Daikin L'Economètre. Developed for industrial partners and distributed through partner platforms to reach professionals and property owners.

Quantifiable outcome

• 35,000 m² of positive-energy office space completed (Green Office Rueil-Malmaison)
• +2 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• PACTE IngénieriecoreStrategic or Co-development PartnerFounding member of the PACTE engineering group, providing multi-disciplinary engineering services (acoustics, economics, fluids, hydraulics, landscaping, ecology, programming) for sustainable urban design projects
• Cluster Rhône-Alpes Eco-énergiecoreStrategic or Co-development PartnerMember of the regional eco-energy cluster supporting sustainable building and energy efficiency initiatives in the Rhône-Alpes region
• QIA (Qualite Ingénierie Architecture)coreStrategic or Co-development PartnerISO 9001 and ISO 14001 certifications managed through QIA, providing quality assurance for engineering and architecture services
• CSTB FormationcoreChannel Partner/ Reseller/ DistributorTraining partnership with CSTB Formation (4 avenue du Recteur Poincaré, Paris) for professional development courses on thermal regulations and building performance
• Groupe MoniteurcoreChannel Partner/ Reseller/ DistributorTraining partnership with Groupe Moniteur for professional certification courses including energy renovation advisor cursus
• GAMBA FormationminorChannel Partner/ Reseller/ DistributorTraining partnership for OPQIBI RGE qualification courses on energy audits and thermal performance
• AICVFcoreStrategic or Co-development PartnerCoordinated the E+C- training kit developed under the PACTE program, involving ADEME, DHUP, CINOV, UNTEC, CNOA, AIMCC, and AIMCC working groups
• EffinergiecoreStrategic or Co-development PartnerMember of Effinergie working groups on Referentiel, Patrimoine, and Qepos, contributing to positive energy building label development
• ADEMEcoreStrategic or Co-development PartnerCollaborated on multiple ADEME projects including BBC pas cher (PUCA-CQFD), COSIMPHI ANR project (2014-2017), and various research initiatives
• KLH-LignatecminorImplementation/ SI/ Consulting PartnerAssisted in designing negative carbon balance wooden construction building using KLH cross-laminated timber panels

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Burgeap (Egis group): French environmental and energy engineering consultancy acquired by Egis, covering building energy audits, environmental assessments, and decarbonization studies. Comparable service offering but with greater scale and Egis-group cross-sell.
• TERAO: Paris-based independent engineering consultancy specialized in energy performance, environmental quality (HQE/BREEAM/LEED), and building physics for new construction and rehabilitation. Closest French pure-play peer with overlapping services in thermal simulation, environmental certification, and project owner assistance.
• Elithis Groupe: French energy engineering firm operating a positive-energy building consultancy and contracting arm. Directly comparable given shared focus on positive-energy buildings, thermal engineering, and energy-efficient construction since the mid-2000s.
• Pouget Consultants: French engineering consultancy focused on building energy efficiency, fluid systems, and HVAC design for residential and tertiary projects. Overlaps with Tribu Energie on MOE construction and rehabilitation missions and thermal regulatory studies.
• Enertech: Boutique French energy consultancy specializing in low-energy building design, dynamic thermal simulation, and energy audits for residential and tertiary projects. Similar size, similar founder-led culture, and similar regulatory positioning as Tribu Energie.

Broad incumbents

• Egis: Major French engineering group offering building energy, environmental, and sustainability services alongside infrastructure, transport, and urban development. Competes for the same clients as Tribu Energie but as part of a full multi-disciplinary portfolio at significantly larger scale.
• setec group: French multi-disciplinary engineering firm with energy, environment, and building sustainability practices. Serves many of the same developers, public entities, and industrial clients as Tribu Energie on larger integrated assignments.
• Bureau Veritas Construction: Global testing, inspection, and certification group with French building energy audit, commissioning, and regulatory verification services. Adjacent to Tribu Energie's energy audit and commissioning offerings but operating at vastly greater scale and geographic reach.
• Artelia: Large French engineering and project management group with a dedicated building energy and environmental division. Provides RT2012/RE2020 studies, HQE/BREEAM certification support, and fluid engineering, often as part of larger construction mandates.

Emerging players

• Karibati: French non-profit/consulting entity accelerating circular economy and low-carbon building practices, with overlap to Tribu Energie's circular economy AMO service line and TOTAL@Saclay-style reuse mandates. Functions more as ecosystem enabler than direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/tribu-energie

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Tribu Energie