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The Projet Celsius team working together in front of a screen

AdviceAssessmentTraining

Consultancy
climate &
eco-design

We quantify, analyse and reduce organisations' carbon and environmental footprints. From research institutions to industrial small and medium-sized businesses, our team of engineers and PhD specialists supports a wide range of projects, beyond reporting.

Get in touchView our services
Approved byFrench Republic and ADEMEBpifrance
Qualiopi: certified process
Institut PasteurSNCFWürthInstitut CurieBacardíRadio FranceESSECPolytechnique ParisTerégaLocaboatAP-HMCentrale MéditerranéeInstitut PasteurSNCFWürthInstitut CurieBacardíRadio FranceESSECPolytechnique ParisTerégaLocaboatAP-HMCentrale Méditerranée
Our expertise

Our specialist services

Most requested
Pillar 01

Carbon

Quantify your emissions, structure the action plan and meet your obligations.

  • Bilan Carbone® / statutory BEGES reporting in France
  • Diag Décarbon'Action (Bpifrance)
  • Reduction plan and SBTi pathway
Our 6 services
Pillar 02

LCA

Measure a product's footprint scientifically, improve it and make it understandable.

  • Product LCA under ISO 14040
  • Diag Éco-conception (Bpifrance)
  • Environmental labelling + Digital Product Passport
Our 6 services
Pillar 03

Compliance

Prepare for EU regulation in 2026-2028 and turn compliance requirements into an advantage.

  • CSRD / ESRS E1
  • PPWR · Environmental labelling
  • Green claims audit
Our 6 services
Bespoke

For work beyond the catalogue.

Forest canopy
Bespoke

Most of our engagements are tailored to your requirements.

Contact us about environmental measurement or any other question. A specialist will be glad to respond.

Discuss it for 15 minutes
Our work

Projects
that address the challenge

They trust us

  • Ulule
  • CDC Croissance
  • Institut Pasteur
  • Bacardí
  • Radio France
  • ESSEC Business School
  • Institut Polytechnique de Paris
  • Avanade
  • Hively Hospitality
  • Teréga
  • Emerige
  • SNCF Gares & Connexions
Current guides

What changes for your products

Our leadership team

A team of engineers & PhD climate specialists

Paris

Guillaume Pakula

Guillaume Pakula

Co-founder and senior consultant

PhD in biophysics (Polytechnique), head of the Paris office

Alexandre Veilly

Alexandre Veilly

Bilan Carbone® engineer

Head of carbon assessment

Marseille

Clément Reynaud

Clément Reynaud

Co-founder and climate specialist

Head of the Marseille office, strategic support

Sébastien Pierfederici

Sébastien Pierfederici

LCA and eco-design specialist

Method development and Product Environmental Footprint (PEF) specialist

Our sectors

Expertise for each sector

We work with federations and key organisations in each sector to develop measurement and decarbonisation methods suited to their regulatory and operational constraints.

Sophie Oger-Hodge, Director of CSR at Institut Curie
« We chose Projet Celsius for our Bilan Carbone® because of their technical expertise and understanding of people. We strongly recommend them to institutions seeking high-quality support. »
Sophie Oger-HodgeDirector of CSR at Institut CurieInstitut Curie
Our accreditations

An accredited consultancy, a certifiedtraining provider

Projet Celsius is approved by ADEME (the French Agency for Ecological Transition) and Bpifrance for Diag Décarbon'Action and Diag Éco-conception. We are a member of the Association pour la transition Bas Carbone (ABC) and a training provider certified by the Institut de Formation Carbone.

View our training courses →
  • ADEME
  • Bpifrance
  • ABC
  • Institut de Formation Carbone
  • Bilan Carbone® 2025

Our methods

  • Bilan Carbone®ABC methodology
  • GHG ProtocolInternational standard
  • LCA ISO 14040Product life cycles
  • CSRD / ESRSSustainability reporting
  • RE2020New buildings
  • Eco-designProducts and packaging
Projet Celsius consultants working at a whiteboard
Funding

Your climate projects
can receive substantial funding

Public programmes from Bpifrance and ADEME can fund 40 to 70% of your carbon assessment work. As approved providers, we prepare the application with you. For eligible SMEs, Diag Décarbon'Action funding is granted almost automatically.

Check your eligibility in 30 secondsor book a call with a consultant →
Approved providerFrench Republic and ADEMEBpifrance
Presentation of a carbon assessment in a meeting roomBpifrance

Diag Décarbon'Action

40 %

funded, with €6,000 excl. VAT remaining

The reference programme for your first Bilan Carbone® assessment and action plan.

Eligibility: SMEs with fewer than 500 employees

Check in 30 seconds →
Product design drawings viewed from aboveBpifrance

Diag Éco-conception

up to70 %

maximum funding

Integrate eco-design into product development, supported by life cycle assessment.

Eligibility: Industrial SMEs and mid-sized businesses

View the programme (in French)
An industrial site undergoing transition, viewed from the roadADEME

ACT Pas à Pas

up to50 %

maximum funding

The ADEME programme for developing an operational climate transition plan, regardless of company size.

Eligibility: All businesses

View the programme (in French)

Every situation has its own requirements.

Tell us about yours: your circumstances, deadline and budget. We respond within 24 working hours with a candid assessment from a senior consultant.

Discuss your project within 24 hours →
Our tools

Calculators and checkers
for climate, freely available

Calibrated to our Bilan Carbone®, LCA and regulatory compliance projects. An explained verdict in a few minutes, on screen or by email depending on the tool.

Consultant estimating a project on a computer
Example result

Industrial business with 250-499 employees, 1 site

14,500to €24,000 excl. VAT

19 consultant days, 4-6 months

Detailed estimate by email after 6 questions

How much will your Bilan Carbone® cost?

Estimate the price of your Bilan Carbone® in 1 minute, calibrated to the 2026 market and public funding.

Start the estimator →Free, with no obligation