Which carbon accounting software for an industrial company?

In brief:

1. Six carbon accounting software platforms structure the market for industrial companies in France: Greenly, Sweep, Plan A, Sami, WeCount and Tennaxia.
2. They cover, to varying degrees, carbon accounting (scopes 1, 2 and 3), CSRD and ESG reporting, and support for decarbonisation strategy.
3. Pricing remains overwhelmingly quote-based, set according to company size and the emissions scope covered.
4. The right choice depends on the company’s profile: international regulatory coverage, French-style human support, or integration with an existing HSE suite.

Comparison table of carbon accounting software

All six vendors in this comparison use quote-based pricing as of October 2026, set according to company size and the emissions scope covered. Publicly available market information points to very variable budgets, from a few thousand euros a year for a first assessment to several tens of thousands of euros a year for a full scope 3 perimeter at a large group.

Why choosing carbon accounting software matters for an industrial company

An industrial company measuring its greenhouse gas emissions faces a challenge that a service-sector business does not: the weight of its production processes and raw material purchases in scope 3. A processing workshop, a foundry or an assembly line all generate physical activity data (tonnes of material, kilowatt-hours, transport kilometres) that a generic spreadsheet struggles to structure over time, especially across multiple sites and years.

Dedicated carbon accounting software addresses three needs specific to industry: automating data collection across departments (purchasing, production, logistics, maintenance), applying up-to-date emission factors suited to industrial processes, and producing reporting usable both for internal steering and for regulatory obligations. In France, the regulatory greenhouse gas assessment (BEGES) is mandatory for companies with more than 500 employees in mainland France and more than 250 in overseas territories, with an update required every four years.

Choosing carbon accounting software also connects to a broader question for an engineering or methods department: the specifications for industrial software, whose selection criteria (functional scope, integration with existing tools, support) apply just as well to a carbon accounting tool.

The criteria that set carbon accounting software apart

1. Scope covered: some tools focus on organisational carbon accounting, while others add product life cycle assessment, CSRD reporting or supplier data management.
2. Reference methodology: the Bilan Carbone® method from the Association pour la Transition Bas Carbone, the international GHG Protocol, or regulatory frameworks such as the European CSRD and California’s SB 253 law.
3. Level of support: self-service software assisted by artificial intelligence, or a solution paired with methodological advice and training.
4. Industrial scope 3: the ability to finely model raw material purchases and processes, usually the most significant item in an industrial footprint.
5. Compatibility with French emission factors, in particular ADEME’s Base Empreinte, for reporting consistent with the national method.

International carbon platforms: Greenly, Sweep and Plan A

Greenly announced in 2026 that it was joining forces with software vendor Normative to form one of the largest carbon platforms on the market, with more than 4,000 clients in over 30 countries and more than 500 million tonnes of CO2 equivalent tracked on its platform. The tool covers carbon accounting under the Bilan Carbone® method and the GHG Protocol, product life cycle assessment compliant with ISO 14040 and 14044, and regulatory reporting for CSRD, the TCFD framework, SBTi commitments, and the European CBAM regulation on imports and the EUDR deforestation regulation. Its EcoPilot assistant, built on artificial intelligence, aims to automate part of the data collection and analysis. Greenly suits a multi-site industrial group that needs consistent reporting across several international regulations from a single platform.

Sweep positions itself as a sustainability data platform driven by artificial intelligence, named in 2026 in the IDC MarketScape evaluation for carbon management and in the Verdantix Green Quadrant for enterprise carbon management. The tool covers carbon management, supplier chain emissions and multi-framework reporting, with explicit support for California’s SB 253 law, the European CSRD, ISSB standards, the UK’s SRS framework and the CDP questionnaire. Sweep suits an industrial group exposed to both US and European regulations that wants to centralise its sustainability data on a single auditable platform rather than juggling several compliance tools.

Plan A offers a carbon accounting software presented by the vendor as certified compliant with the GHG Protocol, with an AI-augmented interface for emissions measurement, reporting and setting decarbonisation targets aligned with a net-zero trajectory. The vendor highlights client references in the technology and business services sectors. Plan A suits an industrial company with a strong technology component, or a French subsidiary of an international group, that is looking for software certified against a recognised framework with onboarding designed for team autonomy.

French-style carbon support: Sami, WeCount and Tennaxia

Sami offers an all-in-one platform combining carbon accounting, climate strategy, life cycle assessment and eco-design strategy, with dedicated support for CSRD and the simplified VSME framework for mid-sized companies. The vendor is a partner of the certification body SGS and offers, beyond the software itself, a catalogue of certified training courses on the Bilan Carbone® method, from introductory to professional level, as well as a dedicated programme for carbon and CSR consultants, Sami Pro. Sami operates in France and six other European countries. This combination suits a French industrial company that wants to build in-house expertise in the Bilan Carbone® method while relying on software.

WeCount supports companies on carbon accounting, climate strategy, CSRD and VSME compliance, and climate adaptation strategies, with stated sector expertise in food processing, construction, cosmetics, textiles, healthcare and tourism. The vendor runs the ADEME “ACT Pas à Pas” programme supporting companies through their first carbon assessment, as well as a dedicated “Programme Promotion Climat”. Its platform is structured around a carbon module and an ESG module. WeCount suits an industrial SME or mid-sized company looking for sector-specific support backed by a recognised public programme for a first carbon accounting exercise.

Tennaxia brings together, in a single software suite, HSE compliance management, ESG and carbon reporting, CSRD double materiality analysis and supplier carbon performance tracking, combined with integrated CSR consulting. The vendor cites clients such as Sodexo and the INSEAD business school among its references. Its platform now incorporates the former Traace offering, brought under the Tennaxia brand. Tennaxia suits a large industrial group that wants to unify HSE regulatory compliance with carbon and ESG reporting rather than maintaining two separate tools.

Which carbon accounting software by industrial company profile

French subsidiary of an international group, or multi-site SME

A company that needs to consolidate emissions across several sites and meet international regulatory obligations (CSRD, CBAM, US regulations) benefits from a platform that natively covers these frameworks, such as Greenly or Sweep, rather than combining several specialised tools.

French industrial company starting its first carbon assessment

A company carrying out its first carbon assessment, and wanting its in-house teams to master the Bilan Carbone® method, benefits from support that combines software and training, as offered by Sami or WeCount, the latter through the ADEME ACT Pas à Pas programme.

Industrial group with an already-structured HSE function

A group that already has a well-equipped HSE department and wants to avoid multiplying platforms has an interest in looking at a suite that combines HSE, carbon and ESG, such as Tennaxia, rather than layering a separate carbon tool on top of its existing setup.

Technology-driven industrial company or subsidiary

An industrial company with a strong software component, or a subsidiary of a technology group, may prefer a tool certified against a recognised framework and designed for autonomous onboarding, such as Plan A.

How to choose carbon accounting software in practice

1. Define the applicable regulatory scope: company size, BEGES obligation, exposure to CSRD, CBAM or regulations outside the European Union.
2. Assess the real weight of scope 3 in the industrial activity concerned, particularly raw material purchases and product use, to check the tool’s ability to model it in detail.
3. Check compatibility with French emission factors, in particular ADEME’s Base Empreinte, for an assessment consistent with the national method.
4. Request a quote for the company’s actual scope: every vendor in this comparison charges on a quote basis, according to the number of sites, users and the extent of the scope covered.
5. Weigh autonomy against support: a tool run autonomously with artificial intelligence does not provide the same level of methodological review as human support or certified training.

This selection process overlaps with that of other industrial company software, such as choosing CMMS software for manufacturing or building an engineering office’s software chain: real functional scope, compatibility with existing tools and a quote matched to the number of users matter more than the headline price.

Mistakes to avoid

1. Choosing software before scoping the applicable regulatory framework: exposure to CSRD or to regulations outside the European Union significantly changes the requirements.
2. Underestimating industrial scope 3, even though it often represents the largest share of emissions at a production site.
3. Overlooking the quality of the emission factors used, which must match the country, technology and year concerned to remain reliable.

Frequently asked questions