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Celsius consultant

SébastienPierfederici

LCA, PEF and eco-design expert - Marseille office

An engineer (Arts et Métiers, UTBM) and LCA specialist in the Marseille office, Sébastien joined Celsius after several years at Glimpact and Decathlon, working on environmental data and product eco-design. He leads methodology development for PEF, environmental labelling and product eco-design. He is approved by Bpifrance for Diag Éco-conception and teaches LCA at Institut de Formation Carbone (IFC).

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24 published articles, latest on 2 Oct 2026

Portrait of Sébastien Pierfederici
Expertise
PEF LCA, environmental labelling, SBTi, green claims
Accreditations
Bpifrance Diag Éco-conception, IFC LCA trainer
Tools
OpenLCA, Ecobalyse, sector PEFCRs, JRC method
Sectors
Textiles, furniture, cosmetics, food, medical devices
Publications

Articles by Sébastien

24 articles
Frequently asked questions

Common questions

The questions we hear most often about Sébastien’s work and how to start a project.

Product life cycle assessment (PEF LCA (in French)), environmental labelling (in French) for textiles, furniture, cosmetics and food, green claims and eco-design. Sébastien leads Celsius’s methodology development for PEF, the Product Environmental Footprint method.
ISO 14040/14044 LCA lets the analyst choose indicators and allocation rules. PEF sets 16 mandatory indicators, strict allocation rules and sector-specific PEFCRs. It underpins French environmental labelling, forthcoming European rules (in French) and the future DPP (in French).
Yes. The Marseille office has helped several textile and furniture brands learn to use Ecobalyse and interpret the official method and the draft furniture method. This practical experience informs our textile eco-score (in French) and Ecobalyse guides.
Request a scoping discussion through the contact page, specifying the product, available bill of materials and objective: B2B, public labelling or green claims. Sébastien responds within 24 working hours. An initial budget estimate and a realistic schedule follow the scoping discussion.
The Celsius team

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