The tool can do
Pull meters, invoices and fuel cards; apply the factor set for the activity year; total by scope; carry last year forward; draft the tables.
Every line keeps its source record and factor version.Software · emissions reports, cited
Carbon emissions reporting software: which report, which gases, which figure
Carbon emissions reporting software turns one inventory into the emissions figures each report asks for, in the right gases, units and boundary.
A UK company can owe several of those reports from the same data, and this page sets out what each one needs, what a tool can automate and what stays with the directors.
It then lists 60 vendors in their own words; this site has tested none and ranks none.
What the software produces
What does carbon emissions reporting software produce?
A closed, reproducible emissions figure for each report a company owes.
Emissions reporting software starts where tracking stops: at a closed period and a figure someone will sign.
Underneath is the same arithmetic as carbon accounting software: activity multiplied by a factor, sorted by scope under the GHG Protocol.
What the reporting layer adds is the cut: the same inventory produces different figures for different reports.
For how the running figure behaves during the year, see carbon emissions tracking software.
- 1
Activity
kWh, litres, kilometres, kilograms of refrigerant and spend, each with its source record.
- 2
Gas
Each activity converted to the gases it releases, using the factor for its activity year.
- 3
CO2e
Gases combined on stated global warming potentials.
- 4
Scope and boundary
Sorted into Scopes 1, 2 and 3 inside the company’s chosen boundary.
- 5
Report
Cut to the lines a given report asks for, with the prior year and the method.
The reports
Which emissions reports does a UK company owe?
Up to four from the same data, each with its own boundary and gases.
The reports differ in who they reach, which scopes they take and where they are published.
| Report and status | Emissions it asks for | Where it is set |
|---|---|---|
| SECR · in force | Gas, purchased electricity and transport fuel in tCO2e, with the kWh, a ratio, the method and last year | SI 2008/410 Sch 7 Parts 7 and 7A |
| UK SRS S2 · comply or explain for UKLR 6, 14, 15, 16 and 22 from 1 January 2027; voluntary otherwise | Gross Scopes 1, 2 and 3 (¶C4 relieves Scope 3); Scope 2 location-based | UK SRS S2 ¶29(a); FCA PS26/19 |
| PPN 006 · procurement policy, per contract | Scope 1, Scope 2 and five Scope 3 categories, and a net zero by 2050 commitment | Cabinet Office PPN 006 Technical Standard |
| UK ETS · in force for installations | Verified installation emissions for the scheme year | DESNZ, Participating in the UK ETS |
A Carbon Reduction Plan is a condition of participation for in-scope contracts above £5 million a year including VAT, not a general legal duty, according to PPN 006.
Each regime’s full line list is on carbon reporting software.
Four reports, one inventoryExplore
Four reports, one inventory
SECR
UK emissions from gas, purchased electricity and transport fuel for an unquoted company; worldwide for a quoted one.
Four reports, one inventory
UK SRS S2
Gross Scopes 1, 2 and 3; comply or explain for listed companies from 2027.
Four reports, one inventory
PPN 006
Scope 1, Scope 2 and five Scope 3 categories, for contracts above £5m a year including VAT.
Four reports, one inventory
UK ETS
An installation’s verified emissions for the calendar year, by 31 March.
Your reports
Which outputs does your company need from a tool?
Tick the duties you carry; the planner lists what a tool must produce for each.
Write the specification before comparing products.
The planner beside this turns the obligations you hold into the capabilities a tool must show, each tied to the provision that creates it.
A company in SECR only needs far less than a listed company heading into UK SRS S2, and buying for the larger case early is a choice, not a requirement.
Obligations in, capabilities out
A requirements list, not a recommendation: it names no product. Each line is tied to the provision that creates it.
Nothing is stored or sent.
Gases and units
Which gases does the reported figure cover?
Seven greenhouse gases, combined as CO2 equivalent on stated warming potentials.
The GHG Protocol’s Corporate Standard covers seven gases, with nitrogen trifluoride added by the 2013 amendment to the 2004 text.
The UK factors already express most activities as CO2e, using AR5 values for methane and nitrous oxide, according to ¶1.9 of the DESNZ 2026 methodology paper.
A refrigerant leak is the line to check: it starts as kilograms of a named gas, and the warming potential applied should be visible.
Biomass CO2 is kept out of Scope 1 and reported separately under Chapters 4 and 9 of the revised Corporate Standard.
| Gas or rule | What a report needs | Source |
|---|---|---|
| Seven gases | CO2, CH4, N2O, HFCs, PFCs, SF6 and NF3 | GHG Protocol, as amended Feb 2013 |
| Methane GWP | 28 in the 2026 UK factors | DESNZ ¶1.9 (AR5) |
| Nitrous oxide GWP | 265 in the 2026 UK factors | DESNZ ¶1.9 (AR5) |
| Some refrigerants | AR6 where no AR5 value existed | DESNZ 2026 methodology footnotes |
| Biomass CO2 | Reported outside the scopes | Corporate Standard Ch 4, Ch 9 |
Gross or net
Is the reported figure gross or net?
Gross. Credits and certificates sit beside the inventory, never inside it.
UK SRS S2 asks for absolute gross Scopes 1, 2 and 3 under ¶29(a)(i) of the standard, with a relief in ¶C4 from disclosing Scope 3.
Where a company sets a net target, ¶36(c) requires the associated gross target to be disclosed separately.
The SBTi’s Corporate Net-Zero Standard V2.0 takes the same line: actions and market instruments not in the physical inventory are accounted for and reported separately.
So the test for a tool is simple: retire a credit in the demonstration and the reported figure should not move.
What stays out of the gross figureExplore
What stays out of the gross figure
Carbon credits
Never deducted from reported Scopes 1, 2 and 3.
What stays out of the gross figure
Net targets
A net target is disclosed with its gross target.
What stays out of the gross figure
Market instruments
Accounted for and reported separately from the physical inventory.
What stays out of the gross figure
Scope 2 method
Location-based Scope 2 is required; a market-based figure can sit beside it.
Automated emissions reporting
What can automated emissions reporting do, and what stays with people?
Collection and arithmetic automate well; boundary, ratio, method and sign-off do not.
Automation earns its place on the dull, error-prone part: feeds, factors and totals.
SECR leaves the intensity ratio to the company under ¶17 and ¶20G of Schedule 7, and the principal efficiency measures are for the directors to describe.
The factor set follows the activity year, not the filing date, under ¶1.10 of the DESNZ methodology, so a tool that picks it automatically should also show which it picked.
The 2026 UK electricity factor fell by about 26%, 6 to 7 points of it from a change of method, according to the major changes report; a well-built report shows how much of a fall came from the factor.
One reporting
year
year
The company decides
The boundary, the intensity ratio, the method statement, the efficiency narrative and the approval.
Schedule 7 leaves these to the company and its directors.Air emissions reporting software
Is air emissions reporting the same as carbon reporting?
No. It is site-level pollutant reporting under a permit, bought as a different product.
Searches for air emissions reporting software reach a separate market: pollutant monitoring at a regulated site.
Medium combustion plant in England and Wales carries limit values for sulphur dioxide, nitrogen oxides and dust under Schedule 25A of the Environmental Permitting Regulations 2016.
The regulator can require information by notice under regulation 61, the power behind Pollution Inventory reporting.
A company with a permitted site often needs both: the site’s monitoring for the regulator, and the site’s energy in its SECR or UK SRS figure.
Permit duties are set out on environmental permitting and air emissions.
Reporting set by a permitExplore
Reporting set by a permit
Medium combustion plant
Limit values for sulphur dioxide, nitrogen oxides and dust.
Reporting set by a permit
Pollution Inventory
Returns requested by notice from permit holders.
Reporting set by a permit
Extent
England and Wales; Scotland and Northern Ireland have their own instruments.
Reporting set by a permit
UK ETS
Verified CO2e for the installation, by 31 March.
The tests before you sign
Which questions should a demonstration answer?
Eight, each tied to the provision it comes from.
Run each question on your own data, because demonstration data rarely has a refrigerant leak, a biomass boiler or a credit.
The GHG Protocol mechanics behind them are on GHG reporting software, and the SECR block in detail on SECR reporting software.
This site has tested no products
Nothing on this page is a rating, ranking or recommendation of any product.
Emissions reporting demo questions · tick the ones you need
The pass tests are our reading of the cited provisions.
Nothing you tick is stored or sent.
The vendors
Who sells carbon emissions reporting software?
60 vendors this site files under carbon accounting or EHS, alphabetically, which ranks nothing.
The registry covers 73 vendors across all categories, read 11 October 2026 and 30 September–1 October 2026.
60 vendors · carbon accounting, ehs
“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”
“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.
These vendors offer a wide range of tools for UK reporters, and each one’s own words, linked to its own site, are the fairest place to start.
Start a shortlist from the reports you owe, then ask each vendor the eight questions above on your data.
60 vendors, own wordsExplore
60 vendors, own words
Carbon accounting and EHS
60 vendors in this site’s registry.
60 vendors, own words
Alphabetical
The order ranks nothing.
60 vendors, own words
Their own words
What each vendor says about itself, read 11 October 2026 and 30 September–1 October 2026.
60 vendors, own words
73 in the registry
The full registry, across all categories.
Order of work
What should a company do first?
List the reports, then the data, then test tools against both.
- 01 / Reports01
List the reports you owe
SECR, UK SRS S2, a Carbon Reduction Plan, UK ETS, a customer’s CDP request. - 02 / Boundary02
Fix the boundary
Which entities, sites and vehicles are in; the same for every report where possible. - 03 / Data03
Name every feed and its owner
Meters, invoices, fuel cards, refrigerant logs, spend. - 04 / Test04
Run the eight questions
On your data, with a credit, a leak and a factor change in it.
Unquoted company in SECR
Two of threeAbove £36m turnover, £18m balance sheet, 250 employeesPPN 006 threshold
£5m a yearIncluding VAT, averaged over the contractUK SRS for listed companies
1 January 2027Periods beginning on or after; comply or explainGases in CO2e
SevenGHG Protocol, as amendedAn emissions figure is only as good as the report it was cut for, so buy for the reports you actually owe.
Frequently asked
Carbon emissions reporting software, answered
What is carbon emissions reporting software?
Software that turns a company’s activity data into the greenhouse gas figures a report asks for — SECR lines in a directors’ report, UK SRS S2 metrics, a PPN 006 Carbon Reduction Plan or a CDP response — with the factor set, the gases and the method recorded behind each figure.
What is the difference between emissions reporting and carbon reporting software?
In practice the same products sell under both names.
This page looks at the emissions figure and the reports it feeds; the platform view, regime by regime, is on carbon reporting software.
What is emissions reporting software?
Usually the same thing: a tool that closes a period and produces reported emissions.
The word “emissions” on its own also covers air pollutants such as nitrogen oxides and sulphur dioxide, which are reported under environmental permits rather than in a company’s carbon inventory.
Which emissions does a UK company have to report?
It depends on the duty.
A large unquoted company reports its UK emissions from gas, purchased electricity and transport fuel under SECR.
A listed company in UKLR 6, 14, 15, 16 or 22 reports gross Scopes 1, 2 and 3 under UK SRS S2, with a relief from Scope 3, on a comply-or-explain basis for periods from 1 January 2027.
A bidder for a major government contract reports Scope 1, Scope 2 and five Scope 3 categories in a Carbon Reduction Plan.
Can emissions reporting be fully automated?
The collection and the arithmetic can be automated.
The boundary, the intensity ratio, the method statement, the efficiency narrative and the sign-off are decisions the regulations leave to the company and its directors.
Which gases does carbon emissions reporting software have to cover?
The GHG Protocol Corporate Standard, as amended in February 2013, covers seven gases: carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, sulphur hexafluoride and nitrogen trifluoride.
They are reported together as CO2 equivalent.
Which global warming potentials do the UK factors use?
DESNZ says its 2026 factors use IPCC AR5 values for methane (28) and nitrous oxide (265).
For some refrigerants and process gases where AR5 values did not exist, DESNZ used AR6 values.
Do carbon credits reduce reported emissions?
No. UK SRS S2 asks for gross emissions, a net target must be shown with its gross target, and the SBTi’s net-zero standard keeps market instruments separate from the physical inventory.
What is air emissions reporting software?
Software for monitoring and reporting pollutants at a permitted site — for example medium combustion plant limit values for sulphur dioxide, nitrogen oxides and dust, or Pollution Inventory returns in England and Wales. It is bought against a permit, not against a corporate inventory.
Does a small business need emissions reporting software?
Often not.
An unquoted company is in SECR only if it exceeds two of £36m turnover, £18m balance sheet and 250 employees.
With a few meters and one fleet, a spreadsheet and the published factors usually do the job.
Is there a UK government emissions reporting tool?
The government publishes the conversion factors and guidance rather than a reporting tool for SECR.
Reports go in the directors’ report filed with the annual accounts.
Has this site tested any emissions reporting software?
No. This page is built from the regulations and 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 fromlegislation.gov.ukGOV.UK (DESNZ, Defra)Department for Energy Security and Net ZeroGHG Protocol (WRI, WBCSD)GHG ProtocolDepartment for Business and Trade
- legislation.gov.ukSI 2008/410, Schedule 7 Parts 7 and 7A
The SECR emissions and energy lines, the ratio, the method and the prior year.
- legislation.gov.ukSI 2008/410, Schedule 7 paragraph 20B
The size test for unquoted companies.
- GOV.UK (DESNZ, Defra)Environmental Reporting Guidelines, including SECR requirements
The government’s SECR guidance.
- Department for Energy Security and Net ZeroGovernment conversion factors for company reporting
One factor set a year, relevant to SECR.
- Department for Energy Security and Net Zero2026 GHG conversion factors methodology paper, ¶¶1.9–1.10 and Table 9
The activity-year rule and the global warming potentials used.
- Department for Energy Security and Net Zero2026 GHG conversion factors: major changes report
The electricity data lag cut from two years to one.
- GHG Protocol (WRI, WBCSD)Corporate Accounting and Reporting Standard
Seven gases, as amended; a minimum of Scope 1 and Scope 2.
- GHG ProtocolCorporate Standard, Revised Edition, Chapters 4 and 9
Biomass CO2 reported separately from the scopes.
- GHG ProtocolRequired gases and GWP values (amendment)
Nitrogen trifluoride added to the required gases.
- GHG ProtocolCorporate Value Chain (Scope 3) Standard
Fifteen categories; exclusions disclosed and justified.
- Department for Business and TradeUK SRS S2 Climate-related Disclosures (PDF), ¶29(a), ¶36
Gross Scopes 1, 2 and 3; location-based Scope 2; gross and net targets.
- 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.
- Cabinet OfficePPN 006: Carbon Reduction Plans in major government contracts
Above £5 million a year including VAT, averaged over the contract.
- Cabinet OfficePPN 006 Technical Standard for Completion of Carbon Reduction Plans
Scope 1, Scope 2 and five Scope 3 categories.
- Science Based Targets initiativeCorporate Net-Zero Standard V2.0
Market instruments accounted for and reported separately (CNZS-C5.4).
- Department for Energy Security and Net ZeroParticipating in the UK ETS
A verified emissions report for the scheme year by 31 March.
- legislation.gov.ukEnvironmental Permitting (England and Wales) Regulations 2016, regulation 1(2)
England and Wales only.
- legislation.gov.ukEnvironmental Permitting Regulations 2016, regulation 61
The notice power behind Pollution Inventory reporting.
- legislation.gov.ukEnvironmental Permitting Regulations 2016, Schedule 25A
Medium combustion plant limit values.
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