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SustainSoft
Techstars '22Paris, FR · 18 employees on LinkedIn · 1 known investors
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SustainSoft provides ESG compliance and sustainability reporting software that aggregates data from multiple sources and automates the collection and reporting process for corporate ESG commitments and stakeholder questionnaires.
Also known as SUSTAINSOFT
Founders & leadership
Investors · 1
How we know: the Techstars portfolio · open dataset · Top 3000 Accelerator Startups (no YC) 2026-08 · open dataset · 5k.vc investor directory · Not right? Tell us
Company profile
researched Sep 2026SustainSoft is a France-based provider of ESG and CSR (RSE) management and compliance software. The platform connects a company's various data sources and automates data collection so that a single set of inputs can be reused across multiple sustainability reports and stakeholder questionnaires. Its library is stated to hold more than 10,000 indicators and support more than 50 ESG standards, with outputs described as fully traceable and auditable.
The product covers CSRD/VSME compliance, EcoVadis assessment preparation, greenhouse-gas/carbon footprint (Bilan Carbone) assessment, other frameworks such as B Corp, CDP, UN Global Compact and GRI, customer, bank and investor ESG questionnaires, and CSR roadmap construction and tracking. Functional modules include ESG data management dashboards, objective and action-plan management with task assignment, reminders and discussion channels, customizable dashboards, KPI analysis, an AI writing assistant for qualitative data, single data entry with framework mapping, and custom exports (Excel, PDF, online platforms).
Delivery pairs the software with human expert support: for EcoVadis, SustainSoft provides scorecard analysis and benchmarking against industry peers, team training, prioritized action cards, document templates (environmental policy, social policy, code of conduct, responsible purchasing charter), live collaboration with a certified EcoVadis Training Partner coach, and a pre-audit review before submission. A directory listing describes the company as a B2B SaaS company offering a web platform and mobile app for measuring, steering and communicating CSR strategy.
Business model
B2B software-as-a-service sold to companies, combining a web platform with advisory and coaching services from in-house CSR/ESG experts; the site's primary conversion actions are booking a meeting or requesting a free demo.
Traction
More than 100 customers are cited across the site. For EcoVadis engagements, the company reports an average improvement of 17 points on customer scores and states that all of its customers obtain a medal, citing case studies including Horus Pharma (+27 points in one evaluation), Multitransports (gold medal after two re-evaluations) and Ailancy Group (bronze to gold).
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Positions itself as a CSR/ESG solution for the French market covering multiple frameworks in a single tool, and states that more than 100 customers have adopted the platform.
Technology
Web platform that connects and ingests data from multiple customer data sources, automates collection, pre-fills questionnaires from existing regulatory reports (CSRD, GHG assessment, EcoVadis), maps a single data entry to multiple frameworks, and applies an AI assistant to generate qualitative narrative content. Outputs are exportable in requested formats and presented as traceable and auditable. The public site is built on Next.js and Apollo GraphQL with React, Algolia, Sentry and reCAPTCHA, hosted on Google Cloud and Amazon infrastructure.
Go-to-market
Direct sales via demo and meeting bookings on the website, supported by content marketing (guides and articles on CSRD, EcoVadis, carbon footprint and AI in CSR), customer case studies, testimonials, stated accreditations, and a network of expert partners.
Companies subject to or preparing for ESG compliance and rating requirements, addressed through CSR/QHSE and sustainability managers. Named customer references include KS Tools, SNCF Connect & Tech, Owkin, Horus Pharma, Multitransports and Ailancy Group.
Geography
Operates in France, with website content in French and English; a French startup directory lists the company under French company records.
History
A French startup directory records the company as created in 2021, with Jules Pigassou listed as Co-Founder & CEO from April 2021, previously an Entrepreneur in Residence at CCI Paris and a member of the Start The F Up flash program. The directory lists staffing of 11 to 50 people and no disclosed funds raised.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
▸Research sources · 8
primary sources listed
- SustainSoftsustainsoft.eu · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does SustainSoft do?
- French SaaS platform combining software and expert support for ESG compliance, CSRD, EcoVadis and carbon footprint reporting.
- Who founded SustainSoft?
- SustainSoft was founded by Félix Averlant.
- Who are SustainSoft's investors?
- SustainSoft's investors include Techstars.
- Where is SustainSoft headquartered?
- SustainSoft is headquartered in Paris, FR.