Every European ESG & Sustainability Reporting tool reviewed
Paris, France
Founded 2020
Quoted on request
No published free tier
Best for: Companies wanting an analyst-recognised platform spanning measurement to reduction
Sweep is a Paris and London-based sustainability data platform founded in 2020 by Rachel Delacour, Yannick Chaze and Raphael Güller, built to help companies measure, manage and act on carbon emissions and wider ESG data across their value chain. It 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 in this category.
The company holds B Corp certification and is a legally registered Entreprise à Mission under French law, a status that writes social and environmental commitments into its corporate bylaws.
It is also a member of the World Bank's Carbon Pricing Leadership Coalition, France Invest and the International Emissions Trading Association. Sweep positions its platform around embedding sustainability into core operations rather than treating it as a compliance checkbox, covering Scope 1, 2 and 3 emissions tracking alongside broader ESG performance data.
Pricing is not published; every plan is quoted after a demo. Sweep opened a Denver, Colorado office in 2025 as part of a US expansion, which is worth knowing if vendor location matters to your procurement policy, though the company remains headquartered and incorporated in France.
Malmö, Sweden
Founded 2015
Quoted on request
No published free tier
Best for: Larger organisations wanting software bundled with advisory across many EU markets
Position Green is a Malmö-founded ESG software and advisory business, established in 2015, that combines CSRD and ESRS reporting, EU Taxonomy and CSDDD compliance, Scope 1-3 carbon accounting and supplier sustainability management inside a single platform. The company runs 11 offices across Europe and North America and states it supports more than 1,000 customers in over 30 countries, making it one of the larger dedicated ESG vendors headquartered in the EU.
Unlike most of the other tools in this category, Position Green is sold with consulting and advisory services built around the software rather than as a pure self-serve SaaS product, which suits an organisation that wants hands-on help interpreting ESRS materiality assessments rather than a tool it configures alone. A majority stake was acquired by Norvestor, a Nordic private equity firm, in April 2022; the company remains headquartered and operated from Sweden.
In September 2025, Position Green Group acquired Greenomy, the Brussels-based EU Taxonomy specialist also reviewed on this page (#8). The two remain separately built and sold products under one parent company, which is worth factoring in if you want vendor diversity across your compliance stack.
Stockholm, Sweden
Founded 2014
Quoted on request
No published free tier
Best for: Teams that want a named climate expert working alongside the software
Normative is a Stockholm-founded carbon accounting platform, established in 2014 by Kristian Rönn, Adam Wamai Egesa and Robin Undall-Behrend, with additional offices in Copenhagen and London. It is one of the longest-established dedicated carbon accounting vendors in this category, predating the CSRD-driven wave of newer entrants by several years, and states it draws on a database of 349,000 verified emission factors.
A distinguishing feature is that every Normative account includes a named, GHG Protocol-certified Climate Strategy Advisor who works with the customer's data and methodology directly, rather than leaving interpretation entirely to self-service software. The company states it has consulted with the European Commission on emissions accounting standards and contributed to a UN initiative on the topic, and is backed by climate-focused investors.
Pricing is not published on Normative's public pages; the vendor directs prospective customers to a separate sales conversation. For a company that wants software plus a dedicated point of contact rather than a pure self-serve tool, Normative sits closer to Position Green in that respect than to the lighter self-serve tools further down this list.
Berlin, Germany
Founded 2017
Quoted on request
No published free tier
Best for: Organisations prioritising decarbonisation modelling over reporting alone
Plan A is a Berlin-headquartered carbon accounting and decarbonisation platform founded in 2017 by Lubomila Jordanova and Nathan Bonnisseau, with a second office in Paris. Its methodology carries TÜV Rheinland certification and is described by the company as GHG Protocol compliant, and the business also holds B Corp certification and states SOC 2 compliance. Plan A has raised roughly $40M in total funding, including a $27M round in 2023.
The platform's stated emphasis is "decarbonisation-first": alongside Scope 1-3 measurement and sustainability-disclosure reporting, it includes AI-assisted decarbonisation modelling, target-setting and supplier engagement tools meant to turn a carbon footprint into a reduction plan rather than a static disclosure. The company lists clients including BMW, Visa, KFC, Sorare, Alphabet and Mollie on its own site.
Pricing is quote-only, reached through a demo request rather than a published price list. For a buyer whose primary goal is cutting emissions rather than just reporting them, Plan A's certified methodology and reduction tooling are the clearer differentiators against the more reporting-first tools in this category.
Amsterdam, Netherlands
Founded 2022
Quoted per module
No published free tier
Best for: EU mid-market companies needing CSRD, Taxonomy, EUDR and CBAM in one place
Coolset is an Amsterdam-based compliance platform, founded in 2022 and registered as Coolset B.V. at Egelantiersgracht 572, that targets EU mid-market companies with nine named modules: CSRD, EU Taxonomy, GHG Scope 1-3 accounting, EUDR (plus a simplified EUDR for SME edition), EUTR, VSME, PPWR and EcoVadis assessment preparation. It is the broadest single platform in this category by named regulatory-framework coverage.
Rather than one flat subscription, Coolset prices each module separately after a quote request, and states that onboarding, a customer success manager, sustainability researchers and a four-week accelerator programme are included at no extra cost on every module. The base platform includes unlimited users, analytics, automations and an auditor-facing audit trail rather than gating collaboration behind seat counts.
Founded in 2022, Coolset is the youngest company on this page, and its own site does not publish specific certifications the way Plan A or Sami do. For a buyer whose priority is covering the full stack of new EU regulatory frameworks (CSRD, Taxonomy, EUDR, CBAM-adjacent reporting) under one vendor relationship, the module breadth is the strongest reason to shortlist it.
Paris, France
Founded 2019
Quoted on request, 3 named tiers
No published free tier
Best for: SMBs and mid-market companies wanting a clearly staged entry point
Greenly is a Paris-founded carbon accounting platform, established in 2019, built primarily for small and mid-sized businesses that want a lighter-weight alternative to enterprise carbon accounting suites. The product covers Scope 1, 2 and 3 emissions accounting, life cycle analysis (LCA), and compliance support for frameworks including TCFD, SBTi, CBAM and EUDR.
Its pricing page names three tiers rather than hiding the structure entirely: GHG Report Compliance is the entry tier (Scope 1 and 2 physical accounting, Scope 3 financial accounting, grouped kick-off calls); Climate Action Ready, described as the most popular tier, adds a physical Scope 3 analysis and a dedicated kick-off call; and Net Zero Contributor adds scenario simulation, a trajectory builder and a dedicated project manager.
None of the three list a number — every tier still routes to a "get in touch" form — but the named, feature-differentiated structure is more transparent about what a buyer is actually choosing between than most competitors' single "book a demo" button.
Optional add-ons include a custom API integration, SSO, and extra entity or activity modules, priced separately. For an SMB comparing several EU carbon accounting vendors, Greenly's tier structure makes it easier to have a scoped first conversation than a vendor offering only one undifferentiated "contact sales" path.
Paris, France
Founded March 2020
Quoted on request
No published free tier
Best for: French companies wanting France's largest carbon accounting client base
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 on this page; 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.
Brussels, Belgium
Founded 2020
Free trial account; paid plans on request
Free trial available
Best for: Financial institutions and corporates needing EU Taxonomy alignment data specifically
Greenomy is a Brussels-founded ESG SaaS platform, established in 2020, built specifically around EU Taxonomy alignment reporting and CSRD compliance rather than broad carbon accounting. It targets corporates, credit institutions and asset managers who need to produce granular Taxonomy-aligned disclosure data for sustainable-finance requirements, and has built distribution alliances with PwC Belgium, Deloitte and Accenture to reach enterprise customers.
Unlike the other seven tools in this category, Greenomy's own site advertises a free trial account rather than routing every visitor straight to a sales call, though the depth of that free tier and its suitability at company scale should be confirmed directly before assuming it covers a full CSRD reporting cycle.
In September 2025, Greenomy was acquired by Position Green Group (#2 on this page), the Malmö-headquartered ESG vendor; Greenomy continues to operate and sell as a distinct, Brussels-built product.
For a buyer whose primary need is EU Taxonomy alignment data specifically — rather than full Scope 1-3 carbon accounting or broad ESRS reporting — Greenomy's narrower focus can mean less unused platform surface than the broader suites higher on this page, at the cost of needing a separate tool if carbon accounting depth is also required.
