Carbonfact
YC S21Paris, FR · Founded 2021 · 22 employees · 3 known investors
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Carbonfact is an environmental intelligence platform that helps apparel and footwear brands and their suppliers measure, understand, and reduce carbon emissions. The platform consolidates supply-chain data and provides scenario modeling and eco-design tools to support emissions reduction across the fashion industry.
Also known as Kanso
Founders & leadership· Y Combinator alumni (S21)
Carbonfact was founded in 2021 by Marc Laurent, Romain Champourlier, and Martin Daniel.



Investors · 3
Funding
SEC filings, press & company announcements$15M disclosed across 1 of 2 rounds · 2022–2024
- $15MSeries AApr 2024 · 3 sources
Alven (lead), Headline, Y Combinator
Source ↗ - Undisclosed amountSeedJun 2022Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Competitors · 1
by search overlapCompanies competing with Carbonfact for the same Google search keywords, organic and paid, via search-intersection analysis.
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Frequently asked questions
- What does Carbonfact do?
- Carbonfact is an environmental intelligence platform that helps apparel and footwear brands and their suppliers measure, understand, and reduce carbon emissions. The platform consolidates supply-chain data and provides scenario modeling and eco-design tools to support emissions reduction across the fashion industry.
- Who founded Carbonfact?
- Carbonfact was founded by Marc Laurent, Romain Champourlier, Martin Daniel in 2021.
- Who are Carbonfact's investors?
- Carbonfact's investors include Y Combinator, Alven, Headline.
- How much funding has Carbonfact raised?
- Carbonfact has disclosed $15M raised across 1 of its 2 known rounds.
- Where is Carbonfact headquartered?
- Carbonfact is headquartered in Paris, FR.




