Sweep bets CSRD makes carbon data a must-buy; $100M raised, then rules slimmed

Sweep is a Paris-based sustainability data platform: enterprises collect carbon and ESG data across operations and supply chains, track targets, and produce audit-ready reports for CSRD, CDP, ISSB and California's SB 253.

That mandatory sustainability reporting — CSRD in Europe, then climate laws elsewhere — would make enterprise carbon data software a must-buy.

About $100M total: $5M seed before beta, $22M Series A (Dec 2021), $73M Series B led by Coatue (Apr 2022) with Balderton, New Wave, La Famiglia and 2050.

Delacour and Nicolas Raspal founded Sweep in Paris in 2020, raised $5M before launching a beta, and launched commercially in April 2021 with a platform that visualized carbon across a company's locations, suppliers and products.

Sweep raised a $22M Series A in December 2021 and a $73M Series B led by Coatue in April 2022, becoming Europe's best-funded carbon platform. The EU adopted CSRD in late 2022, with first-wave reports due in 2025. When the European Commission's February 2025 Omnibus proposal raised CSRD thresholds and cut many companies out of scope, Sweep publicly welcomed the simplification and repositioned itself as a sustainability data management platform; by September 2025 it cited clients including Crocs, CH Robinson and L'Oréal.

Still running and repositioned: Sweep now sells AI-assisted sustainability data management, was named a Leader in IDC MarketScape 2026 and the Verdantix 2026 Green Quadrant, and announced a HowGood data partnership in June 2026.

The founders aimed at a timing wedge: large corporates had made public net-zero commitments but had no tooling, and CSRD was about to force them to report.

Investors read the same regulatory signal, letting Sweep raise ~$100M before the first CSRD reports were due.

When the Omnibus shrank the mandate, Sweep treated it as a repositioning prompt rather than a threat, pivoting to data platform value beyond compliance.

Broadening from carbon accounting to all sustainability data kept the platform relevant as CSRD, ISSB and SB 253 created a multi-standard reporting world.

A mandate's first wave is the funding moment, but scope can shrink: the durable asset was the data platform, so Sweep pivoted from compliance tool to data infrastructure when CSRD coverage was cut.

As of 2026-09-02 Sweep is still running, repositioned as an AI-assisted sustainability data management platform. It reports enterprise customers including L'Oréal, Crocs, CH Robinson, Thales and Accenture, was named a Leader in IDC MarketScape 2026 and the Verdantix 2026 Green Quadrant, and in June 2026 announced a HowGood partnership for food-industry reporting. The February 2025 EU Omnibus narrowed CSRD's mandatory scope; Sweep's response was to sell reporting as strategy and data infrastructure rather than pure compliance.