Sami
Paris decarbonisation and ESG platform, 2,000+ clients, majority-owned by SGS since Nov 2025
Quick Overview
| Company | Sami |
|---|---|
| Category | ESG & Sustainability Reporting |
| Headquarters | Paris, France |
| Founded | March 2020 |
| EU Presence | EU (France); majority shareholder is SGS SA, headquartered in Geneva, Switzerland (non-EU), since November 2025 |
| Open Source | Not stated; closed-source SaaS |
| Compliance | GHG Protocol certified, ISO 27001 certified, B Corp certified (3-star Positive Company rating) |
| Pricing | Quoted on request; no numbers published |
| Free Option | None stated |
| Replaces | Persefoni, Watershed |
Detailed Review
Sami is a Paris-founded decarbonisation and ESG reporting platform established in March 2020, with additional French offices in Marseille, Bordeaux and Lyon and a London office.
The product combines a Carbon Hub for Scope 1-3 emissions measurement and net-zero strategy, an ESG Hub for sustainability reporting, and consulting and training services, drawing on a database the company describes as over 300,000 emission factors. Sami states it serves more than 2,000 clients across Europe and describes itself as France's most widely used carbon accounting software.
The company holds GHG Protocol certification, ISO 27001 certification and B Corp certification with a 3-star Positive Company rating. In November 2025, SGS SA — a Geneva, Switzerland-headquartered testing, inspection and certification group — acquired a majority stake in Sami.
Sami itself remains a French-registered, Paris-headquartered company, and the acquisition is framed by both parties as a "one-stop shop" pairing Sami's software with SGS's certification and audit services across its global network. Because SGS is Swiss rather than EU/EEA, this is the clearest ownership caveat among the eight tools in this category; a buyer with a strict EU-ownership procurement requirement should confirm current terms directly.
Pricing is quote-only, with the company describing its positioning as "enterprise-grade capabilities at SME-mid-cap pricing" rather than publishing numbers.
What Sami does well
- Large client base — 2,000+ across Europe per the vendor, the largest stated in this category
- Three-way certification: GHG Protocol certified, ISO 27001 certified, B Corp (3-star Positive Company)
- Combines carbon accounting, ESG reporting and consulting/training in one relationship
- Large emission-factor database (300,000+)
Where Sami falls short
- Majority stake now held by SGS SA, a Swiss (non-EU) company, since November 2025 — the clearest non-EU-ownership caveat in this category, even though Sami stays Paris-headquartered
- No published numeric pricing
- No free tier stated
- Recently acquired, so its independent product roadmap going forward is less certain than a vendor that has stayed independently owned
Standout feature. A rare combination of scale and certification depth: GHG Protocol, ISO 27001 and B Corp certification together with a 2,000+ client base.
Pros and Cons
Pros
- Large client base — 2,000+ across Europe per the vendor, the largest stated in this category
- Three-way certification: GHG Protocol certified, ISO 27001 certified, B Corp (3-star Positive Company)
- Combines carbon accounting, ESG reporting and consulting/training in one relationship
- Large emission-factor database (300,000+)
Cons
- Majority stake now held by SGS SA, a Swiss (non-EU) company, since November 2025 — the clearest non-EU-ownership caveat in this category, even though Sami stays Paris-headquartered
- No published numeric pricing
- No free tier stated
- Recently acquired, so its independent product roadmap going forward is less certain than a vendor that has stayed independently owned
Alternatives to Sami
Frequently Asked Questions
What is Sami?
Sami is a Paris-based decarbonisation and ESG reporting platform combining a Carbon Hub for emissions measurement, an ESG Hub for sustainability reporting, and consulting and training services.
Where is Sami based?
Sami is headquartered in Paris, France, which places it under EU (France) law. Since November 2025, its majority shareholder is SGS SA, headquartered in Geneva, Switzerland (non-EU).
What does Sami cost?
Sami does not publish pricing. The company describes its positioning as enterprise-grade capabilities at SME-mid-cap pricing, quoted on request.
Who is Sami best for?
French companies wanting France's largest carbon accounting client base, per the vendor's own claim.
Is Sami a good alternative to Persefoni or Watershed?
Sami is built as a European alternative to US-based carbon accounting platforms like Persefoni and Watershed. It will not be a like-for-like feature match in every respect, so check the review above for where it genuinely differs before switching.
How does Sami compare to other ESG & Sustainability Reporting tools?
Sami is one of several European ESG and sustainability reporting tools covered on this site. See the full ESG & Sustainability Reporting category page for how it ranks against its closest European competitors.