Sweep
Paris/London carbon and ESG platform, 2026 IDC MarketScape and Verdantix Leader, B Corp certified
Quick Overview
| Company | Sweep |
|---|---|
| Category | ESG & Sustainability Reporting |
| Headquarters | Paris, France (also London, UK) |
| Founded | 2020 |
| EU Presence | EU (France) |
| Open Source | Not stated; closed-source SaaS |
| Compliance | B Corp certified; registered Entreprise à Mission under French law |
| Pricing | Not published; quoted after a demo call |
| Free Option | None stated; demo booking only |
| Replaces | Watershed, Persefoni, Workiva |
Detailed Review
Sweep is a Paris and London-based sustainability data platform founded in 2020 by Rachel Delacour (CEO), Yannick Chaze (CTO) and Raphael Güller (CPO), built to help companies measure, manage and act on carbon emissions and wider ESG data across their operations and value chain.
The platform was named a Leader in the 2026 IDC MarketScape for Carbon Management and a Leader in the 2026 Verdantix Green Quadrant for enterprise carbon management — two of the more closely watched independent analyst rankings a buyer can check before shortlisting a vendor in this category.
The company holds B Corp certification and is registered as an Entreprise à Mission under French law, a status that writes social and environmental commitments directly into a company's bylaws rather than leaving them as marketing claims.
Sweep is also a member of the World Bank's Carbon Pricing Leadership Coalition, France Invest and the International Emissions Trading Association. The product covers Scope 1, 2 and 3 emissions tracking, data collection automation across complex organisations, and broader ESG performance management, positioned by the company as a growth lever rather than a compliance-only exercise.
Pricing is not published anywhere on Sweep's site; every plan is reached by booking a demo, so a prospective customer cannot budget without a sales conversation. Sweep opened a Denver, Colorado office in 2025 as part of a US expansion — worth noting if vendor location matters to your procurement policy, though the company remains headquartered and incorporated in France, which is what keeps it eligible for this directory.
What Sweep does well
- Named a Leader in both the 2026 IDC MarketScape for Carbon Management and the 2026 Verdantix Green Quadrant for enterprise carbon management
- B Corp certified and a legally registered Entreprise à Mission, not just a marketing claim
- Covers measurement, reporting and reduction in one platform rather than requiring a second tool for decarbonisation planning
- Active member of recognised sustainability-finance bodies (World Bank Carbon Pricing Leadership Coalition, France Invest, IETA)
Where Sweep falls short
- No published pricing anywhere on the site; every quote requires a sales conversation
- No permanent free tier or self-serve trial, only a demo booking
- Now expanding into the US market (Denver office opened 2025), which is a factor for buyers who specifically want a purely EU-focused vendor
Standout feature. Independent analyst recognition: Sweep is one of the few EU-headquartered vendors in this category named a Leader by both IDC and Verdantix in the same year, which is a useful shortcut for a buyer who wants third-party validation rather than vendor marketing alone.
Pros and Cons
Pros
- Named a Leader in both the 2026 IDC MarketScape for Carbon Management and the 2026 Verdantix Green Quadrant for enterprise carbon management
- B Corp certified and a legally registered Entreprise à Mission, not just a marketing claim
- Covers measurement, reporting and reduction in one platform rather than requiring a second tool for decarbonisation planning
- Active member of recognised sustainability-finance bodies (World Bank Carbon Pricing Leadership Coalition, France Invest, IETA)
Cons
- No published pricing anywhere on the site; every quote requires a sales conversation
- No permanent free tier or self-serve trial, only a demo booking
- Now expanding into the US market (Denver office opened 2025), which is a factor for buyers who specifically want a purely EU-focused vendor
Alternatives to Sweep
Frequently Asked Questions
What is Sweep?
Sweep is a Paris and London-based sustainability data platform that helps companies measure, manage and act on carbon emissions and wider ESG data across their value chain.
Where is Sweep based?
Sweep is headquartered in Paris, France, with an additional office in London and a US office in Denver, Colorado opened in 2025. The company remains incorporated and headquartered in France, which places it under EU (France) law.
What does Sweep cost?
Sweep does not publish pricing. Every plan is quoted after booking a demo, so an exact number requires a sales conversation.
Who is Sweep best for?
Companies that want an analyst-recognised platform: Sweep was named a Leader in the 2026 IDC MarketScape for Carbon Management and a Leader in the 2026 Verdantix Green Quadrant for enterprise carbon management, alongside B Corp and Entreprise à Mission status.
Is Sweep a good alternative to Watershed or Persefoni?
Sweep is built as a European alternative to US-based carbon and ESG platforms like Watershed, Persefoni and Workiva. 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 Sweep compare to other ESG & Sustainability Reporting tools?
Sweep 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.