# CarbonTool > CarbonTool is a carbon accounting and decarbonisation platform that helps companies measure, manage, report and reduce their Scope 1, 2 and 3 greenhouse gas emissions. Built by BuildGreen on recognised methodology (GHG Protocol) and 200+ expert-built emission source templates, it provides a single data backbone that feeds carbon footprints, reduction targets and every required disclosure (CSRD, VSME, GRI, CDP, ISSB). CarbonTool centralises fragmented emissions data — energy bills, fuel logs, supplier invoices, SAF-T files — into one auditable inventory, then turns that data into reduction scenarios and audit-ready reports. Pricing is transparent and per-organisation (no per-seat fees), with a free Starter plan. For a deeper, self-contained reference (full pricing matrix, frameworks by region, buyer-guide comparisons and key definitions), see https://carbontool.com/llms-full.txt. ## Platform - [Carbon Accounting](https://carbontool.com/platform/carbon-accounting): Build a Scope 1, 2 and 3 emissions inventory using recognised methodology, 200+ templates and a single data backbone. Measure, track and analyse your footprint. - [Reporting](https://carbontool.com/platform/reporting): Generate CSRD, VSME, GRI, CDP and ISSB reports from one data backbone — structure data once, produce every framework's disclosure without duplicate entry. - [Decarbonisation](https://carbontool.com/platform/decarbonisation): Set reduction targets (SBTi, CRREM or custom), build initiatives and scenarios with CAPEX and ROI, and track progress against a defensible reduction plan. - [Supply Chain](https://carbontool.com/platform/supply-chain): Map, request and collect supplier emissions data to build a traceable Scope 3 Category 1 inventory from day one. ## Solutions by industry - [Retail](https://carbontool.com/solutions/retail): Product-level emissions across complex supply chains — purchased goods, logistics, packaging and end-of-life. - [Electricity and Utilities](https://carbontool.com/solutions/electricity-utilities): Generation emissions by source, Scope 1 intensity tracking and decarbonisation scenario modelling. - [IT, Media and Communications](https://carbontool.com/solutions/it-media-communications): Scope 3 from cloud, data centres, device lifecycle and content delivery networks. - [Manufacturing](https://carbontool.com/solutions/manufacturing): Process and combustion emissions, purchased energy and raw-material supply chain across facilities. - [Financial](https://carbontool.com/solutions/financial): PCAF-aligned financed emissions across asset classes, plus operational footprint and CSRD disclosure. - [Healthcare](https://carbontool.com/solutions/healthcare): Multi-facility operational emissions and pharmaceutical / medical supply chain Scope 3. - [Logistics and Transportation](https://carbontool.com/solutions/logistics-transportation): Fleet-level Scope 1 tracking, subcontracted freight Scope 3 and per-shipment emissions reporting. - [Real Estate and Construction](https://carbontool.com/solutions/real-estate): Whole-building lifecycle and embodied carbon, aligned with BREEAM, LEED, GRESB and EU Taxonomy. ## Pricing - [Pricing](https://carbontool.com/pricing): Transparent per-organisation pricing with unlimited users and no per-seat fees. Free 30-day Starter plan, loyalty discount up to 30%. ## Resources - [Resources hub](https://carbontool.com/resources): Index of all CarbonTool buyer's guides, how-to guides, free tools, comparisons and regional guides. - [Articles](https://carbontool.com/resources/articles): Articles and press coverage on carbon accounting, emissions reporting and decarbonisation. - [Glossary](https://carbontool.com/resources/glossary): A-to-Z definitions of carbon accounting, emissions and sustainability terms. - [Best Carbon Accounting Software (2026 comparison)](https://carbontool.com/resources/best-carbon-accounting-software): Buyer's guide comparing leading carbon accounting platforms (Watershed, Persefoni, Greenly, Plan A, Normative, Sweep, CarbonTool) by framework coverage, Scope 1–3 depth, pricing model and region. - [Enterprise Carbon Accounting Software (capabilities)](https://carbontool.com/resources/enterprise-carbon-accounting-software): CarbonTool's enterprise capabilities — REST API and ERP/SAF-T integrations (SAP, Oracle NetSuite, Dynamics), multi-entity consolidation, audit-grade Data Quality Index, Scope 3 supplier data and decarbonisation planning. - [Best CSRD Reporting Software (2026)](https://carbontool.com/resources/best-csrd-software): Buyer's guide to CSRD reporting software — double materiality, ESRS, iXBRL, VSME and EU data residency compared across the leading platforms. - [Best Scope 3 Emissions Software (2026)](https://carbontool.com/resources/best-scope-3-emissions-software): Comparison of Scope 3 emissions software by supplier data collection, PCAF data-quality scoring and spend-based vs supplier-specific methods. - [Best ESG Reporting Software (2026)](https://carbontool.com/resources/best-esg-reporting-software): ESG reporting platforms compared on E/S/G coverage, CSRD/GRI/ISSB support, single data backbone and pricing. - [Supplier Emissions Data Collection Software (2026 guide)](https://carbontool.com/resources/supplier-emissions-data-collection-software): How to collect Scope 3 Category 1 supplier emissions data, with a 6-step process and a comparison of supplier-engagement platforms. - [Carbon Accounting Consultant vs Software (2026)](https://carbontool.com/resources/carbon-accounting-consultant-vs-software): Consultant vs software vs hybrid approaches compared on cost, data ownership, repeatability and framework coverage. - [Carbon Accounting Software for Romania (2026)](https://carbontool.com/resources/carbon-accounting-software-romania): Carbon accounting software for Romanian companies — CSRD, VSME, CBAM, SAF-T-to-Scope-3, EUR pricing and locally-rooted support. - [CSRD Reporting Software for Europe (2026)](https://carbontool.com/resources/csrd-software-europe): CSRD/ESRS software guide for European companies — reporting waves, double materiality, VSME and EU data residency. - [Carbon Accounting Software for US Companies (2026)](https://carbontool.com/resources/carbon-accounting-software-usa): Carbon accounting software for US companies — SEC climate disclosure, California SB 253/261, spend-based vs supplier-specific Scope 3. - [Best Sustainability Consultants in Romania (2026)](https://carbontool.com/resources/best-sustainability-consultant-romania): Carbon and sustainability advisory options in Romania, with the BuildGreen + CarbonTool software-plus-advisory hybrid ranked first. - [Carbon Accounting & Emissions Statistics (2026)](https://carbontool.com/resources/carbon-accounting-statistics): Sourced statistics on global emissions, corporate carbon reporting, Scope 3 and CSRD, each attributed to a primary source. - [Carbon Accounting Software in Europe (2026)](https://carbontool.com/resources/carbon-accounting-software-europe): EU-wide carbon accounting software & app — CSRD/ESRS, VSME, EU Taxonomy, CBAM, with links to per-country guides. - [ESG Software & App](https://carbontool.com/resources/esg-software): What ESG software/apps do, the frameworks (CSRD, GRI, SASB, ISSB, CDP) and how to choose. - [CSRD Software & App](https://carbontool.com/resources/csrd-software): CSRD/ESRS software overview — double materiality, Scope 3, audit trail and VSME. - [Sustainability Software & App](https://carbontool.com/resources/sustainability-software): Sustainability/ESG/carbon management software across measurement, reporting and decarbonisation. - [Carbon Footprint Software & App (2026)](https://carbontool.com/resources/carbon-footprint-software): What carbon footprint software does, how to choose, and the leading tools compared for corporate Scope 1–3 footprinting. - [GHG Accounting Software (2026)](https://carbontool.com/resources/ghg-accounting-software): Greenhouse gas accounting software built on the GHG Protocol — operational/organisational boundaries, Scope 1–3 and emission factors. - [Net Zero Software & Platform (2026)](https://carbontool.com/resources/net-zero-software): Decarbonisation and net-zero planning software — SBTi target-setting, scenarios, internal carbon pricing and abatement tracking. - [Sustainability Reporting Software & App (2026)](https://carbontool.com/resources/sustainability-reporting-software): Sustainability/ESG reporting software across CSRD/ESRS, VSME, GRI, CDP and TCFD with audit-ready outputs. - [Emissions Tracking Software & App (2026)](https://carbontool.com/resources/emissions-tracking-software): Emissions tracking and management software — continuous Scope 1–3 monitoring, data quality and supplier collection. - [Product Carbon Footprint & LCA Software (2026)](https://carbontool.com/resources/product-carbon-footprint-software): Product-level carbon footprinting with spend- and activity-based methods, and how it relates to dedicated LCA tools. ## Free tools - [Free Carbon Footprint Calculator (Scope 1 & 2)](https://carbontool.com/tools/esg-carbon-calculator): Estimate Scope 1 and 2 emissions from electricity, gas and fuel use. - [Free Scope 3 Calculator](https://carbontool.com/tools/scope-3-calculator): Spend-based screening estimate of Scope 3 value-chain emissions. - [CSRD Readiness Checker](https://carbontool.com/tools/csrd-readiness-checker): Indicative check of whether and when CSRD applies to your company. ## How-to guides (carbon & ESG reporting tasks) - [How to calculate Scope 3 emissions](https://carbontool.com/resources/how-to-calculate-scope-3-emissions): Step-by-step method across the 15 categories — screening, spend-based vs supplier-specific, emission factors. - [How to complete a VSME report](https://carbontool.com/resources/how-to-complete-vsme-report): Completing the EFRAG VSME Basic/Comprehensive modules and reusing it for customer ESG requests. - [How to do a double materiality assessment](https://carbontool.com/resources/double-materiality-assessment-guide): Impact + financial materiality for CSRD/ESRS, thresholds and assurance-ready documentation. - [Location-based vs market-based Scope 2](https://carbontool.com/resources/location-based-vs-market-based-scope-2): Which emission factor to use and how to dual-report Scope 2. - [CBAM reporting guide (2026)](https://carbontool.com/resources/cbam-reporting-guide-2026): How to report embedded emissions under the Carbon Border Adjustment Mechanism. - [How to collect supplier emissions data](https://carbontool.com/resources/how-to-collect-supplier-emissions-data): Prioritise, request and score primary supplier data for Scope 3. - [CSRD vs VSME: which report do I need?](https://carbontool.com/resources/csrd-vs-vsme-which-report-do-i-need): Decide which framework applies to your company and when. - [Spend-based carbon accounting from financial data](https://carbontool.com/resources/spend-based-carbon-accounting-from-financial-data): Estimate emissions from ERP/financial spend data as a screening method. ## Carbon accounting software & mandatory reporting requirements by country - [United Kingdom](https://carbontool.com/resources/carbon-accounting-software-uk): UK carbon accounting software + SECR, mandatory TCFD-aligned climate disclosures and UK SRS reporting requirements. - [Germany](https://carbontool.com/resources/carbon-accounting-software-germany): Germany — CSRD transposition, LkSG supply-chain due diligence, EU Taxonomy and CBAM. - [France](https://carbontool.com/resources/carbon-accounting-software-france): France — CSRD, BEGES mandatory GHG assessment and the Décret tertiaire. - [Netherlands](https://carbontool.com/resources/carbon-accounting-software-netherlands): Netherlands — CSRD and WPM mobility CO2 reporting for large employers. - [Ireland](https://carbontool.com/resources/carbon-accounting-software-ireland): Ireland — CSRD transposition and phased reporting waves. - [Spain](https://carbontool.com/resources/carbon-accounting-software-spain): Spain — CSRD and the climate change & energy transition law. - [Italy](https://carbontool.com/resources/carbon-accounting-software-italy): Italy — CSRD transposed via D.Lgs. 125/2024. - [Poland](https://carbontool.com/resources/carbon-accounting-software-poland): Poland — CSRD transposition for large CEE companies. - [Belgium](https://carbontool.com/resources/carbon-accounting-software-belgium): Belgium — CSRD transposition and reporting obligations. - [Sweden](https://carbontool.com/resources/carbon-accounting-software-sweden): Sweden — CSRD via the Annual Accounts Act. - [UAE](https://carbontool.com/resources/carbon-accounting-software-uae): UAE — federal Climate Law GHG reporting obligations and SCA ESG disclosure. - [Saudi Arabia](https://carbontool.com/resources/carbon-accounting-software-saudi-arabia): Saudi Arabia — Tadawul ESG disclosure guidelines and Vision 2030. - [Singapore](https://carbontool.com/resources/carbon-accounting-software-singapore): Singapore — mandatory ISSB-aligned climate reporting (SGX-listed and large non-listed). - [India](https://carbontool.com/resources/carbon-accounting-software-india): India — SEBI BRSR / BRSR Core for the top listed companies. - [Canada](https://carbontool.com/resources/carbon-accounting-software-canada): Canada — CSDS (ISSB-aligned) and OSFI B-15 climate disclosure. ## CSRD & ESG software by country - [CSRD Software in Germany (2026)](https://carbontool.com/resources/csrd-software-germany): CSRD reporting software for German companies — CSRD-Umsetzungsgesetz transposition, ESRS, double materiality and Mittelstand/VSME. - [CSRD Software in France (2026)](https://carbontool.com/resources/csrd-software-france): CSRD software for French companies — early ordonnance transposition into the Code de commerce, ESRS and AMF context. - [CSRD Software in Italy (2026)](https://carbontool.com/resources/csrd-software-italy): CSRD software for Italian companies — D.Lgs. transposition, ESRS, double materiality and PMI/VSME. - [CSRD Software in Spain (2026)](https://carbontool.com/resources/csrd-software-spain): CSRD software for Spanish companies — national transposition, the EINF regime, ESRS and double materiality. - [CSRD Software in the Netherlands (2026)](https://carbontool.com/resources/csrd-software-netherlands): CSRD software for Dutch companies — implementing decree, Title 9 Book 2 BW bestuursverslag, ESRS and assurance. - [ESG Software in the UK (2026)](https://carbontool.com/resources/esg-software-uk): ESG reporting software for UK companies — SECR, TCFD-aligned disclosures, the forthcoming UK SRS, and CSRD reach for EU-group subsidiaries. ## Company - [About](https://carbontool.com/about): CarbonTool's mission, team and the BuildGreen background behind the platform. - [Careers](https://carbontool.com/about/carrers): Open roles and what it's like to work at CarbonTool. - [Press](https://carbontool.com/about/press): Press releases, announcements, media coverage and downloadable media kit. - [Contact](https://carbontool.com/contact-us): Get in touch with the CarbonTool team. ## Get started - [Sign up](https://app.carbontool.com/signup): Start free — no credit card, no sales call.