An older Built on mark
Reviewed for conformance before the service closed; still hosted by the GHG Protocol.
May predate later guidance, the GHG Protocol warns.Software · the GHG Protocol, cited
Greenhouse gas protocol software: what “GHG Protocol-aligned” means
Greenhouse gas protocol software is any tool that calculates and reports an inventory to the GHG Protocol’s standards.
The Protocol is a family of documents amended over time, it no longer reviews tools, and it is being rewritten with ISO, so “aligned” is a claim to test against named texts.
This page sets out those texts and the tests, then lists 61 vendors in their own words; this site has tested none and ranks none.
The standard is a family
Which GHG Protocol documents does software follow?
The Corporate Standard as amended, and the Scope 3 Standard where Scope 3 is reported.
“The GHG Protocol” is not one document, and a tool that cites only the 2004 PDF is citing an incomplete text.
The Corporate Standard was amended in 2013 to add nitrogen trifluoride, and in 2015 by the Scope 2 Guidance, which calls itself an amendment to it.
Scope 3 is optional under the Corporate Standard, but a company using the Scope 3 Standard accounts for all fifteen categories and justifies any exclusion under §6.2.
So the first question for any vendor is which documents, and which edition of each, its calculations follow.
The texts in forceExplore
The texts in force
Corporate Standard
Revised edition, March 2004: boundaries, Scopes 1 and 2, principles.
The texts in force
Gases amendment
Nitrogen trifluoride added in 2013: seven gases.
The texts in force
Scope 2 Guidance
An amendment to the Corporate Standard (2015): location- and market-based.
The texts in force
Scope 3 Standard
2011: fifteen categories, exclusions disclosed and justified.
Certification
Can software be certified to the GHG Protocol?
Not newly: the Built on GHG Protocol review service is closed until further notice.
The GHG Protocol says on its Built on GHG Protocol page that the review service “will be closed until further notice” while it continues to host previously approved tools.
It also warns that where a listed document predates the standard or guidance it conforms to, it cannot confirm compliance with the most recent guidance.
The mark can be narrower than it sounds: PCAF’s own standard page says it covers six asset classes from its first edition and nothing added since.
None of that is a criticism of any tool; it means the claim is the vendor’s, and the evidence is in the demonstration.
“GHG Protocol-
aligned”
aligned”
The vendor’s own claim
What most tools mean today: the vendor’s reading of the standards.
Test it against the named texts on your own data.Scope 1 and 2 GHG accounting and reporting
What does a GHG Protocol tool have to get right first?
The required minimum: Scopes 1 and 2, seven gases, both Scope 2 methods, biomass apart.
Chapter 9 of the Corporate Standard requires a minimum of Scope 1 and Scope 2, so this is where any tool should be strongest.
Chapter 6 lists the four Scope 1 source categories: stationary combustion, mobile combustion, process emissions and fugitive emissions such as equipment leaks.
Direct CO2 from burning biomass is kept out of Scope 1 and reported separately, while its methane and nitrous oxide stay in Scope 1, as the GHG Protocol’s Calculation Tools FAQ confirms.
Chapter 5 requires a recalculation policy whose significance threshold the company sets and discloses; the 5% figure often quoted is the SBTi’s, for targets, according to the GHG Protocol’s technical assistance.
| Element | What the standard says | Where |
|---|---|---|
| Required minimum | Scope 1 and Scope 2 | Corporate Standard Ch 9 |
| Scope 1 sources | Stationary and mobile combustion, process and fugitive emissions | Ch 6 |
| Biomass CO2 | Not in Scope 1; reported separately | Ch 4, Ch 9 |
| Scope 2 | Location-based and market-based methods | Scope 2 Guidance |
| Boundary | Equity share, or financial or operational control | Ch 3 |
| Recalculation | A policy with a company-set, disclosed threshold | Ch 5 |
Testing the claim
How do you test a GHG Protocol claim on a demonstration?
Filter the measurement tests by what you report, then run them on your data.
The tests beside this come from the provisions that make each one matter, and name no product.
Pick the duties you report under and the list narrows to what your tool must pass.
The mechanics behind each test, from consolidation to factor APIs, are on GHG accounting software.
This site has tested no products
Nothing on this page is a rating, ranking or recommendation of any product.
Step 1 · what does your inventory have to feed?
Step 2 · 18 tests to run on your own data
Factor versioning
Scope 2
Scope 3 method
Restatement and the base year
Audit trail
Data model
The exit
Each test is our reading of the cited provision as something to see on screen; the provision is the authority.
Tick a test once the vendor has shown it on your data.
Nothing you tick is stored or sent.
The Protocol’s own tools
Is a GHG Protocol calculation tool enough on its own?
For one source, sometimes; for a whole inventory reported each year, rarely.
The GHG Protocol publishes calculation tools and a Calculation Tools FAQ on its own site.
They are a sound reference for a single source and for checking a vendor’s arithmetic.
A UK reporter also needs the DESNZ factor set for each activity year, under ¶1.10 of the methodology paper, and last year’s figures kept as disclosed.
That is where a platform earns its keep: many sources, many years, one audit trail.
Free tool or platformExplore
Free tool or platform
GHG Protocol tools
Free calculation spreadsheets for specific sources, with an FAQ.
The revision
What happens to GHG Protocol software when the standard changes?
Nothing yet: the existing standards stay in effect until a revised one is published.
- 20 October 202501
- 31 January 202602
- 29 July 202603
Consolidation with ISO announced
One co-branded corporate standard, bringing together Scopes 1, 2 and 3, market instruments and ISO 14064-1. - Q2 2027 (estimated)04
- Q4 2028 (estimated)05
The GHG Protocol’s update programme says the existing standards and guidance stay in effect while it works.
ISO 14064-1:2018 is current and also marked for revision in the ISO catalogue.
UK SRS S2 points at the 2004 Corporate Standard by name, so a tool that switched early to a draft would be reporting to a text the standard does not name.
Ask each vendor how it will version its calculations when the new standard lands, so that your prior years stay as disclosed.
UK reporting
Where does UK reporting point at the GHG Protocol?
UK SRS S2 names it; SECR asks for the method used.
UK SRS S2 ¶29(a)(ii) requires emissions to be measured in accordance with the GHG Protocol Corporate Standard (2004), unless a jurisdictional authority or an exchange requires a different method, according to the standard.
¶C3 allows a different method in the first year only, and the standard does not say whether its “(2004)” reference takes in the 2013 and 2015 amendments, so ask a vendor which reading it applies.
Listed companies in UKLR 6, 14, 15, 16 and 22 apply UK SRS on a comply-or-explain basis for periods beginning on or after 1 January 2027, under PS26/19.
Where Scope 3 is reported, UK SRS S2 asks a company to consider all fifteen categories and disclose which it includes, and ¶C4 relieves a company from disclosing Scope 3 at all, with no time limit.
SECR asks for a statement of the methodology used under Schedule 7, and the GHG Protocol is the usual answer.
UK duties and the ProtocolExplore
UK duties and the Protocol
UK SRS S2
Measured to the GHG Protocol Corporate Standard (2004), unless another method is required.
UK duties and the Protocol
Listed companies
Comply or explain for UKLR 6, 14, 15, 16 and 22 from 2027.
UK duties and the Protocol
Scope 3
Consider all 15 categories and disclose which are included; ¶C4 relief has no time limit.
The vendors
Who sells greenhouse gas protocol software?
61 vendors this site files under carbon accounting or emissions data APIs, alphabetically, which ranks nothing.
The registry covers 73 vendors across all categories, read 11 October 2026 and 30 September–1 October 2026.
61 vendors · carbon accounting, api
“Altruistiq helps companies with complex value chains go faster and further on sustainability”
“Intelligent AI that measures, reduces, and reports Scope 1–3 and LCA emissions in line with CDP, SBTi, CSRD, and CBAM requirements”
“Benchmark Gensuite is a unified EHS management software platform built on a single architecture—connecting safety, environmental compliance, and operational risk across every site”
“Our software provides companies and financial institutions with precise accounting of the emissions caused by making, shipping and using critical commodities and products around the globe”
“Climatiq delivers the reliable data, easy-to-use tools, and deep integrations businesses need to understand their carbon impact”
“Measure, reduce, and report your Scope 1, 2 and 3 emissions”
“The professional benchmarking and reporting platform built for sustainability consultants, SMEs, and the platforms that serve them”
“Coolset gives supply chain and ESG teams the structure, automation and guidance to meet complex compliance requirements like EUDR, PPWR and CSRD, and manage Scope 1-3 emissions”
“One AI-enabled EHS software platform to drive performance across employee health, safety, quality, environmental, and sustainability”
“Cozero helps enterprises steer decarbonization with the same rigor as financial performance, from data collection to investment decisions and regulatory disclosure”
“Dcycle is an ESG software platform founded in 2020 that helps companies collect, manage, and govern sustainability and non-financial data”
Diginex describes carbon accounting, sustainability reporting, supply chain, human rights monitoring and ESG investor intelligence for asset managers, banks and companies.
Diligent’s carbon accounting page describes a solution that “automatically collates your data and produces up to 80 different pre-configured audit-ready reports”.
Ecologi describes itself as a B Corp-certified climate action platform.
EcoOnline sells software to manage EHS and compliance.
“The Emitwise platform is now part of Green Project, where the team continues to build and deliver end-to-end decarbonization solutions”
“Enablon is Wolters Kluwer’s integrated software platform for environment, health and safety, PSM, and enterprise oversight, with ESG capabilities embedded as part of a broader risk approach”
“Collect, analyze, and report sustainability, financial, and risk KPIs with 10+ software modules – individually or in line with official standards”
“Manage safety, compliance, ESG, sustainability and operational risk from a platform built to keep programs reliable across sites, teams and operational change”
“The climate management platform built on AI, backed by dedicated sustainability experts”
“Measure, report, and reduce your company's emissions on one audit-ready sustainability management platform”
IBM describes Envizi as a “compliance ready solution for ESG data”.
“Ideagen Carbon Accounting is an AI-powered solution designed to address complex multi-region ESG reporting challenges in carbon accounting”
“Bring safety, environment, and quality workflows into one connected platform”
IsoMetrix sells software to “manage their environmental, health, safety, sustainability, and social risks”.
“Makersite’s Product Lifecycle Intelligence software brings together your cost, environment, compliance, and risk data in one place”
“Manglai is a platform to manage all of your environmental impact”
“Measurabl makes subjective sustainability data objective”
Microsoft Sustainability Manager
“Track and reduce your environmental impact using data and AI”
A carbon management platform that, in Novisto’s words, “simplifies the collection, calculation, and reporting of corporate carbon footprints”.
“Net Zero Now exists to provide a simple, credible and affordable route to Net Zero for SMEs and to celebrate and promote those that achieve this vitally important goal”
“Normative is a carbon accounting platform that helps companies calculate, report, and reduce Scope 1, 2, and 3 emissions using 349,000 verified emission factors”
“Novata is a sustainability data management platform built for private market investors, deal teams, banks, and companies that need a scalable way to collect, manage, and act on sustainability data”
“One digital solution for sustainability planning, data management, reporting, analysis and action - built for enterprise”
“Our platform empowers organizations to accurately measure and manage scope 1, 2, and 3 emissions with direct and actionable information”
Oracle Fusion Cloud Sustainability
“Oracle Fusion Cloud Sustainability is a new offering to capture environmental, social, and governance data for any kind of activity that has a sustainability impact”
“osapiens is the AI platform for compliance and supplier intelligence to help companies manage risk and become more resilient”
Persefoni describes software and AI tools to manage an organisation’s “sustainability data, disclosures, and performance”.
“Your certified software for reliable emissions intelligence to measure, report and reduce your carbon footprint”
“We guide businesses in understanding their emissions, empower them to develop carbon reduction plans, and supporting them on their journey to net zero”
Position Green describes “a sustainability reporting and management platform that combines powerful software with expert advisory services”.
“Pulsora is an AI-powered sustainability and carbon management platform that automates data collection, measurement, and reporting workflows for sustainability teams”
“Digitally handle occupational safety, quality, sustainability, and environmental management”
“It leverages the full power of the Salesforce ecosystem by pulling an organization’s sustainability data into one place and creating actionable insights to guide strategic decisions”
“Measure your full carbon footprint, build your net zero strategy and develop in-house expertise with a single partner”
SAP Sustainability Footprint Management
“Decarbonize your value chain and calculate your corporate and product carbon footprint at scale with ERP-centric, AI-enabled carbon management”
“Seedling is an all-in-one carbon accounting and Net Zero planning platform for businesses of up to 2000 FTEs”
ServiceNow Operational Sustainability Management
“ServiceNow Operational Sustainability Management helps organizations manage, visualize, and report on sustainability efforts and risks across environmental, social, and governance (ESG) programs”
“SimaPro is life cycle assessment software that helps organizations measure, analyze, and reduce environmental impacts using robust datasets, scientific methods, and transparent modeling”
SINAI describes “audit-grade Scope 1–3 accounting, automated compliance reporting, complete supply chain visibility” and decarbonisation planning for global enterprises.
“Small99 Hero creates a pathway to net zero for you based on your industry, outlining how long your Net Zero journey will take and how much it will cost”
“Sphera unifies risk, safety and sustainability into a single enterprise-wide view — connecting intelligence across operations, products and supply chains”
“Sweep's AI turns sustainability data into measurable business performance”
“Manage sustainability metrics intelligently in medium-sized businesses - through automated processes, AI-powered carbon accounting, and audit-proof ESG reports”
“Terrascope is an enterprise carbon management and decarbonisation platform for companies with complex supply chains”
“Trace combines AI-powered software with expert advisory support to help organisations meet their mandatory climate and sustainability reporting obligations, efficiently and with confidence”
“Unravel Carbon is the climate platform helping companies with global supply chains make data-driven decisions”
“Carbon accounting is often the first step companies take toward climate disclosure, compliance, and action—and with Watershed, it’s part of your complete enterprise sustainability platform”
Workday (supplier sustainability)
“Turn sustainable sourcing into a competitive advantage with Workday supplier sustainability solutions”
“Workiva Carbon is an end-to-end carbon accounting software solution that enables organizations to measure, manage, collaborate on, and report emissions data”
“Carbon management software with experts built in, so you can move from measurement to action without spreadsheets or one-off consulting projects”
Alphabetical, which ranks nothing.
Each description is the vendor’s own words from its own site, read 11 October 2026 and 30 September–1 October 2026; prices appear only where the vendor publishes one.
No product here has been tested by this site.
Many of these vendors explain their GHG Protocol methods openly on their own sites, which makes the questions above quicker to answer.
Ask each one which documents and editions it follows, and how it will handle the revised standard.
Order of work
What should a company do first?
Settle the texts and the boundary, then test tools against both.
- 1
Name the texts
Corporate Standard as amended; Scope 3 Standard if you report Scope 3.
- 2
Fix the boundary
Equity share, financial control or operational control, applied to every entity.
- 3
Write the recalculation policy
Your own threshold, disclosed.
- 4
Test on your data
Seven gases, both Scope 2 methods, biomass apart, a factor year change.
Gases
SevenCorporate Standard, as amended in 2013Required minimum
Scopes 1 and 2Corporate Standard Ch 9Scope 3 categories
FifteenScope 3 StandardRevised standard
Est. Q4 2028GHG Protocol and ISO, subject to changeA GHG Protocol claim is worth exactly what the tool shows on your own data.
Frequently asked
Greenhouse gas protocol software, answered
What is greenhouse gas protocol software?
Software that calculates and reports a company’s greenhouse gas inventory following the GHG Protocol standards: Scopes 1, 2 and 3, the seven gases, the two Scope 2 methods and a base-year recalculation policy.
Is there GHG Protocol certified software?
Not newly.
The GHG Protocol says its Built on GHG Protocol review service is closed until further notice, though it still hosts previously approved tools and warns that older listings may predate later guidance.
A vendor’s “GHG Protocol-aligned” is its own claim, to be tested.
Does the GHG Protocol have its own calculation tool?
Yes.
It publishes calculation tools and a Calculation Tools FAQ on its own site.
They are spreadsheets for specific sources, not a full reporting platform.
Which GHG Protocol documents should software follow?
At least the Corporate Standard (2004, amended in 2013 for gases and in 2015 by the Scope 2 Guidance), and, where Scope 3 is reported, the Corporate Value Chain (Scope 3) Standard of 2011.
What does the GHG Protocol require as a minimum?
The Corporate Standard requires reporting a minimum of Scope 1 and Scope 2 emissions; Scope 3 is optional under that standard.
A company that uses the Scope 3 Standard accounts for all fifteen categories and justifies any exclusion.
What is scope 1 and 2 GHG accounting and reporting software?
A tool that covers the Corporate Standard’s required minimum: direct emissions from stationary and mobile combustion, process and fugitive sources, and indirect emissions from purchased energy, reported location-based and, where the company has contracts, market-based.
Is the GHG Protocol being revised?
Yes, but nothing revised exists yet.
The GHG Protocol and ISO plan a single co-branded corporate standard, with a consultation estimated for Q2 2027 and publication estimated for Q4 2028.
Until then the existing standards stay in effect.
Is ISO 14064-1 the same as the GHG Protocol?
No, but they are converging.
ISO 14064-1:2018 is current and marked for revision, and the GHG Protocol and ISO are consolidating their corporate standards.
Does UK law require the GHG Protocol?
UK SRS S2 ¶29(a)(ii) requires greenhouse gas emissions to be measured in accordance with the GHG Protocol Corporate Standard (2004), unless a jurisdictional authority or exchange requires a different method, with a first-year relief in ¶C3.
Listed companies in UKLR 6, 14, 15, 16 and 22 apply UK SRS on a comply-or-explain basis for periods from 1 January 2027.
SECR asks companies to state the methodology they used.
Does GHG Protocol software have to use the UK conversion factors?
The GHG Protocol does not prescribe UK factors.
DESNZ publishes one set a year for activity mostly within that year, relevant to SECR, and a UK tool should name which set it used.
How do I test a GHG Protocol claim?
Ask which documents and editions the tool follows, then check the required elements on your own data: the seven gases, both Scope 2 methods, biomass CO2 reported separately and a recalculation policy with your own threshold.
Has this site tested any GHG Protocol software?
No. The tests on this page come from the standards cited, and the vendor list quotes what each vendor says about itself.
Sources
Primary sources
Every requirement on this page traces to the provision listed here.
Vendor descriptions are cited on each vendor’s profile to the vendor’s own page.
Checked against 19 sources fromGHG Protocol (WRI, WBCSD)GHG ProtocolISOPCAFDepartment for Energy Security and Net ZeroDepartment for Business and Trade
- GHG Protocol (WRI, WBCSD)Corporate Accounting and Reporting Standard
Seven gases, as amended; updated with the Scope 2 Guidance in 2015.
- GHG ProtocolCorporate Standard, Revised Edition, Chapters 3, 4, 5, 6 and 9
Control, biomass, recalculation policy, source categories, required reporting.
- GHG ProtocolRequired gases and GWP values (amendment, 2013)
Nitrogen trifluoride added.
- GHG ProtocolScope 2 Guidance
An amendment to the Corporate Standard: location- and market-based methods.
- GHG ProtocolCorporate Value Chain (Scope 3) Standard
Fifteen categories; exclusions disclosed and justified (§6.2).
- GHG ProtocolTechnical Guidance for Calculating Scope 3 Emissions
Calculation methods by category.
- GHG ProtocolScope 1 & 2 GHG Inventory Guidance (2019)
Recalculation triggers.
- GHG ProtocolTechnical assistance: when to recalculate base-year emissions
No set significance threshold.
- GHG ProtocolGuidance Built on GHG Protocol
The review service is closed until further notice.
- GHG ProtocolCalculation Tools FAQ
The Protocol’s own tools; biomass CO2 in a memo item.
- GHG ProtocolStandards and guidance update programme
The existing standards stay in effect.
- GHG ProtocolConsolidated Standard Development Plan (29 July 2026)
One co-branded standard with ISO; consultation est. Q2 2027, publication est. Q4 2028.
- GHG ProtocolAnnouncement of key standard development updates
The consolidation with ISO 14064-1.
- ISOISO 14064-1:2018
Confirmed 2024; stage 90.92, to be revised.
- PCAFThe Global GHG Accounting and Reporting Standard
The Built on GHG Protocol mark covers six original asset classes only.
- Department for Energy Security and Net Zero2026 GHG conversion factors methodology paper, ¶¶1.9–1.10
The activity-year rule and the GWPs used.
- Department for Business and TradeUK SRS S2 Climate-related Disclosures (PDF), ¶29(a), ¶B32
¶29(a)(ii) names the 2004 Corporate Standard; ¶B32, ¶C3, ¶C4.
- Financial Conduct AuthorityPS26/19 — final rules on UK SRS reporting by listed companies
Comply or explain for periods beginning on or after 1 January 2027.
- legislation.gov.ukSI 2008/410, Schedule 7 Parts 7 and 7A
SECR: the method statement names the standard used.