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Independent research directory · Informational only · No regulator affiliation
SB253 Vendors

Category

Carbon accounting software vendors

Last reviewed: September 20, 2026

Software for calculating and tracking greenhouse gas emissions from organizational data. Listed vendors describe their own capabilities; SB253 Vendors has not tested, scored or ranked them.

Descriptions are short summaries of what each vendor or source states publicly. SB253 Vendors has not independently verified them. Listings are alphabetical and are not a ranking.

Vendors in this category

  • Aclymate

    Carbon accounting software paired with optional expert services and sustainability certifications, aimed at small and mid-sized businesses.

  • Carbon Analytics

    AI-based carbon accounting platform for tracking Scope 1-3 emissions with automated data collection, supplier mapping and report templates.

  • Carbonfact

    Environmental data platform for apparel, textile and footwear brands, offering GHG inventories, product LCAs and framework reports.

  • Green Project Technologies

    Supply chain decarbonization platform combining supplier engagement, Scope 1-3 carbon accounting and renewable energy procurement; absorbed the Emitwise and Optera platforms.

  • IBM Envizi ESG Suite

    IBM's ESG data and emissions software covering Scope 1-3 GHG accounting, financed emissions, decarbonization and ESG reporting.

  • Microsoft Sustainability Manager

    Microsoft product for recording, calculating and reporting emissions, water and waste data, with Scope 1-3 calculations and dashboards.

  • Persefoni

    Software for carbon accounting and sustainability management covering Scope 1-3 measurement, reporting, decarbonization planning and financed emissions.

  • Plan A

    Carbon accounting and decarbonisation software for measuring, reporting and reducing corporate emissions, with AI features.

  • Salesforce Net Zero Cloud

    Salesforce ESG product for tracking Scope 1-3 emissions, forecasting toward net zero goals, and building framework-specific sustainability reports.

  • SAP Sustainability Solutions

    SAP's ERP-connected sustainability portfolio covering carbon accounting through a green ledger, footprint management and ESG steering and reporting.

  • Sweep

    Platform for centralizing carbon and ESG data across a business and its value chain, with supplier data collection and multi-framework reporting templates.

  • Terrascope

    Software for measuring and reducing corporate and product carbon footprints, with AI-assisted data ingestion, gap filling and reporting.

  • Watershed

    Enterprise sustainability platform for measuring emissions, drafting sustainability reports and planning reductions, with AI-assisted data tools.