Vendors by standard

Vendors that name GHG Protocol

Greenhouse gas accounting standards developed by the World Resources Institute and the World Business Council for Sustainable Development, including the Corporate Standard and the Scope 3 Standard.

Sources checked: September 20, 2026

The 27 vendors below name GHG Protocol in the sources we recorded. Naming a standard does not mean a vendor is certified, accredited or approved under it. Listings are alphabetical and are not a ranking. Confirm details directly with each vendor.

27 vendors that name GHG Protocol

• Anthesis Group

  Sustainability consultancy offering GHG inventory development, Scope 1/2 measurement and Scope 3 screening, with its own inventory software and California regulation pages.

  Standards the vendor names: ISO 14064; GHG Protocol; TCFD; CSRD; SECR; Science Based Targets

  Source: Scope 1/2/3 measurement services and standards named (accessed September 20, 2026)

  GHG accounting consulting

• BDO USA

  Accounting firm describing limited and reasonable sustainability assurance, readiness assessments, and GHG inventory support, and referencing SB 253 reporting.

  Standards the vendor names: AICPA; ISAE; GHG Protocol; ISSB; ESRS

  Source: Assurance levels, standards named, SB 253 mention, service components (accessed September 20, 2026)

  Assurance and verification

• BSI Consulting

  BSI's consulting page describes GHG accounting and reporting support (Scope 1-3 inventories, verification preparation); BSI's separate pages also list ISO 14064-1 verification.

  Standards the vendor names: GHG Protocol Corporate Standard; ISO 14064; CDP; GRI; SASB; TCFD

  Source: GHG accounting and reporting consulting services (accessed September 20, 2026)

  GHG accounting consulting

• Bureau Veritas

  Testing/inspection/certification group offering carbon footprint verification including organizational Scope 1-3 verification, referencing ISO 14064 and the GHG Protocol.

  Standards the vendor names: ISO 14064; ISO 14068; GHG Protocol; IWA 42

  Source: Vendor page: services and standards named (accessed September 20, 2026)

  Assurance and verification

• Carbon Analytics

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

  Standards the vendor names: GHG Protocol categories; CDP, GRI, SBTi, EU CSRD

  Source: Homepage: features and frameworks (accessed September 20, 2026)

  Carbon accounting software

• Carbon Trust

  Organization whose footprinting and reporting page describes helping corporates, cities and financial institutions measure Scope 1, 2 and 3 emissions against recognized standards.

  Standards the vendor names: GHG Protocol; PAS 2050; ISO 14064-3; ISO 14067; PCAF

  Source: Footprinting and reporting services; standards named (accessed September 20, 2026)

  GHG accounting consulting

• Climatiq

  Provider of an emission-factor database and API, plus tools for managing emission factors and calculating product carbon footprints.

  Standards the vendor names: GHG Protocol; ISO 14067

  Source: Homepage: products and data scope (accessed September 20, 2026)

  Emissions data and factors

• Crowe

  Accounting and advisory firm whose US page describes GHG emissions accounting help across Scopes 1-3, based on the GHG Protocol, including readiness reviews of existing inventories.

  Standards the vendor names: GHG Protocol

  Source: GHG emissions accounting services; GHG Protocol reference (accessed September 20, 2026)

  GHG accounting consulting

• Diligent ESG

  Diligent's ESG product with a carbon calculator covering Scope 1-3, stakeholder data collection for Scope 3 and multi-report data reuse.

  Standards the vendor names: GHG Protocol Corporate Standard; ISO 14064-1 equivalencies

  Source: Product page: carbon calculator, Scope 1-3, emission factors (accessed September 20, 2026)

  ESG and climate reporting platforms

• DNV

  Assurance and certification group whose pages describe third-party verification of corporate carbon footprints and GHG emissions against ISO 14064-1 and the GHG Protocol.

  Standards the vendor names: ISO 14064-1; GHG Protocol Corporate Standard; ISO 14068-1; CDP; CSRD; ISO 14065; ISO 17029

  Source: Vendor page: services and standards named (accessed September 20, 2026)

  Assurance and verification

• ERM

  Sustainability consultancy whose pages describe sustainability reporting and disclosure support and GHG accounting work, including a private-equity GHG standard using the GHG Protocol.

  Standards the vendor names: GHG Protocol; PCAF Standard; CSRD; ESRS; IFRS/ISSB; GRI; SASB; TCFD; CDP

  Source: Reporting and disclosure services, frameworks named (accessed September 20, 2026)

  GHG accounting consulting

• ERM CVS

  Independent assurance and verification arm of ERM Group; its SB 253 page cites ISAE 3000, ISAE 3410 and ISO 14064-3 for GHG assurance and offers assurance-readiness assessments.

  Standards the vendor names: ISAE 3000; ISAE 3410; ISO 14064-3; ISO 14064; GHG Protocol; ISO 17021; ISO 17029

  Source: SB 253 page: assurance since 1996, ISAE 3000/3410 and ISO 14064-3, readiness assessments (accessed September 20, 2026)

  Assurance and verification

• 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.

  Standards the vendor names: GHG Protocol, CDP, CSRD, SBTi

  Source: Homepage: offerings, frameworks, HQ, acquisition mentions (accessed September 20, 2026)

  Carbon accounting software

• IBM Envizi ESG Suite

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

  Standards the vendor names: GHG Protocol; CSRD

  Source: Product page: features, GHG Protocol wording (accessed September 20, 2026)

  Carbon accounting software

• KERAMIDA

  Environmental consultancy offering GHG assessments and inventories (Scopes 1-3), verification services, and SB 253 and New York reporting assistance.

  Standards the vendor names: GHG Protocol; ISO 14064-3; ISO 14067; ISO 14040/14044; CDP; SBTi; TCFD; IFRS S2; CSRD; AA1000

  Source: Services, standards, credentials statement, address (accessed September 20, 2026)

  GHG accounting consulting

• Microsoft Sustainability Manager

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

  Standards the vendor names: GHG Protocol; US EPA methodology; ESRS

  Source: Product overview; page updated 24 Mar 2026 (accessed September 20, 2026)

  Carbon accounting software

• Persefoni

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

  Standards the vendor names: GHG Protocol; Science Based Targets initiative; TCFD; CSRD; PCAF; SASB; California SB 253 and SB 261

  Source: Homepage: product areas, frameworks named, SB 253/SB 261 named (accessed September 20, 2026)

  Carbon accounting software

• Plan A

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

  Standards the vendor names: GHG Protocol; CSRD, ESRS, CSDDD, EU Taxonomy, UK SDR, US SEC climate disclosures, CBAM

  Source: Homepage: features, certification badge, regulation list (accessed September 20, 2026)

  Carbon accounting software

• PwC (US)

  Professional services firm whose US page describes independent ESG assurance, including over selected metrics such as GHG emissions.

  Standards the vendor names: GHG Protocol; SASB; TCFD

  Source: ESG assurance services, GHG emissions metric assurance, frameworks named (accessed September 20, 2026)

  Assurance and verification

• Ramboll

  Engineering and consulting firm whose insight article says it can support Scope 1 and 2 inventories; other pages describe climate calculations and decarbonization consulting.

  Standards the vendor names: GHG Protocol; Science Based Targets initiative

  Source: Article stating help with Scope 1/2 inventories; GHG Protocol named (accessed September 20, 2026)

  GHG accounting consulting

• SCS Global Services

  Third-party GHG inventory verification body covering Scope 1, 2 and 3, with verification against GHG Protocol and several program rules.

  Standards the vendor names: GHG Protocol; ISO 14065; ISO 14064-3

  Source: Service description, standards/programs, ANAB ISO 14065 statement, footer location (accessed September 20, 2026)

  Assurance and verification

• SGS

  Inspection and certification group offering verification of GHG inventories to ISO 14064-1, at limited or reasonable assurance, with accredited and non-accredited options stated.

  Standards the vendor names: ISO 14064-1; ISO 14064-3; ISO 14065; GHG Protocol; ISO 14067; PAS 2060; PAS 2050

  Source: Vendor page: services and standards named (accessed September 20, 2026)

  Assurance and verification

• Sweep

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

  Standards the vendor names: GHG Protocol; CSRD; CDP; ISSB; California SB 253 and SB 261; UK SRS, GRI, SASB, FDR, PCAF

  Source: Homepage: features and frameworks named (accessed September 20, 2026)

  Carbon accounting software

• Terrascope

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

  Standards the vendor names: GHG Protocol; CDP, TCFD, CSRD, GRI, ISSB, SBTi, FLAG

  Source: Homepage: features, frameworks, address (accessed September 20, 2026)

  Carbon accounting software

• Trinity Consultants

  Environmental consultancy offering GHG inventories across all three scopes, GHG and CDP reporting support, and staff for SB 253 emissions reporting questions.

  Standards the vendor names: GHG Protocol; CDP

  Source: GHG inventory service description (accessed September 20, 2026)

  GHG accounting consulting

• TUV SUD

  Testing and certification group offering GHG verification of corporate carbon footprints (ISO 14064-1, GHG Protocol) and projects, with verification following ISO 14064-3.

  Standards the vendor names: ISO 14064-1; ISO 14064-2; ISO 14064-3; ISO 14065; ISO 14067; GHG Protocol

  Source: Service scope, standards, ISO 14065 accreditation statement, North American HQ address (accessed September 20, 2026)

  Assurance and verification

• Workiva

  Reporting and disclosure platform whose sustainability offerings include Workiva Carbon for GHG accounting, plus ESG reporting, double materiality and data collection.

  Standards the vendor names: GHG Protocol; CSRD, ISSB, California SB 253 and SB 261; CDP and GRI; ESEF

  Source: Homepage: sustainability offerings, HQ address (accessed September 20, 2026)

  ESG and climate reporting platforms

Compare the first four side by side or combine standards in the vendor finder.