Best Carbon Accounting Software - Page 6

How Many Carbon Accounting Software Products Does G2 Track?

Total Products under this Category: 199

Category Stats (Sep 2026)

  • Average Rating: 4.64/5 (↓0.01 vs Aug 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Ecologi (+0.48%) - Among all products in this category, Ecologi recorded the largest rating increase compared to last month

Last updated: September 29, 2026

How Does G2 Rank Carbon Accounting Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 3,100+ Authentic Reviews
  • 199+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Carbon Accounting Software

G2 Grid® for Carbon Accounting Software plotting products by satisfaction and market presence

Highlighted products: Watershed, osapiens, Workiva, Orki, Greenly, Seedling, Ecologi, and carbmee EIS.

Underlying data: [Grid® JSON](https://www.g2.com/categories/carbon-accounting/grids.json?focus%5B%5D=watershed&focus%5B%5D=osapiens&focus%5B%5D=workiva-workiva&focus%5B%5D=orki&focus%5B%5D=greenly&focus%5B%5D=seedling&focus%5B%5D=ecologi&focus%5B%5D=carbmee-eis)

Carbon Management

Anvil Analytical's Carbon Management module gives procurement teams audit-ready visibility of their organisation’s carbon footprint down to their L3 across the supply base. We provide a detailed breakdown of CO₂e emissions at supplier, product, location, and L3 category level. Our methodology evolves with your data maturity. We begin with spend-based allocation, refine emissions using category-specific coefficients, and progressively increase accuracy through quantity-based and supplier-informed calculations. Over time, we'll work together to engage your suppliers and improve data quality, so that your emissions picture becomes increasingly precise. The module allows you to analyse emissions by spend, identify high-impact reduction opportunities, and prioritise mitigation initiatives. Built-in comparison views highlight supplier and country-level emissions differences within categories, helping procurement teams make more responsible sourcing decisions without compromising commercial outcomes. Anvil’s Carbon Management module focuses on surfacing practical carbon reduction opportunities, tracking progress over time, and supports structured mitigation project management. As with all Anvil modules, implementation is rapid and fully managed, with tailored support to ensure your carbon data translates into measurable, real-world results (typically between 2-4 weeks).

Who Is the Company Behind Carbon Management?

  • Seller: Anvil Analytical
  • HQ Location: 5th Floor, 174 Hammersmith Rd, London W6 7JP
  • LinkedIn® Page: www.linkedin.com
    18 employees on LinkedIn®
  • Ownership: Steve Harrison
  • Phone: 020 7605 1600

Carbon-OS

Carbon-OS is a carbon compliance platform for organisations whose emissions figures must survive external scrutiny. It ingests activity data from ERP systems, invoices, bills of materials and freight records, routes it through a managed emission factor library, and produces Scope 1, 2 and 3 inventories in which every tonne is pinned to the document it came from. Each figure carries its calculation method, factor version, data confidence score and a link to the underlying record, so an assurance provider, an export customer or a regulator can trace any number to its origin. Corporate reporting spans BRSR Core, CSRD, ISSB, CDP and SBTi tracking. Product footprints follow ISO 14067, producing passport-ready outputs for CBAM, the EU Battery Regulation and EPDs. Financed emissions follow PCAF. For Indian filers, company-level disclosure is mapped onto the per-facility basis CCTS requires. A connected credit marketplace handles sourcing and retirement against residual emissions.

Who Is the Company Behind Carbon-OS?

CarbonPass

CarbonPass.co is a UK carbon-accounting tool that helps small and medium-sized businesses produce a PPN 006-aligned Carbon Reduction Plan (CRP) in about 20 minutes. Many UK public-sector and NHS tenders require a published CRP to bid; CarbonPass turns a few business questions and uploaded energy bills into a compliant plan covering Scope 1, 2 and 3 emissions using DEFRA 2025 factors and the GHG Protocol - for GBP199/year instead of a multi-thousand-pound consultant. It also offers a free PPN 006 readiness checker and a live UK public-sector contracts directory.

Who Is the Company Behind CarbonPass?

CarbonTool

CarbonTool is an all-in-one platform that helps businesses measure, manage, report, and reduce their carbon footprint. By offering tools for emissions tracking, target setting, and ESG reporting, it enables companies to make informed, sustainable decisions while reducing their environmental impact. CarbonTool, backed by over 15 years of expertise, provides access to an extensive emissions factors database, real-time data analysis, and full traceability for auditors. Its easy-to-use interface and supply chain integration make it the ideal choice for businesses aiming to achieve decarbonization goals efficiently.

Who Is the Company Behind CarbonTool?

CERius Emissions Management

CERius™ is an advanced emissions management software developed by GE Vernova, designed to assist organizations in accurately measuring, managing, and operationalizing their decarbonization strategies. By automating the collection of Greenhouse Gas (GHG emissions data, CERius provides real-time insights and actionable recommendations to help businesses achieve their net-zero commitments with confidence. Key Features and Functionality: - Automated Data Collection: Seamlessly gathers and aggregates emissions data across operations, eliminating the need for manual spreadsheets and reducing the risk of errors. - AI/ML Integration: Utilizes artificial intelligence and machine learning to enhance the accuracy of scope 1 carbon emissions calculations, improving precision by up to 33%. - Real-Time Monitoring: Offers a unified, real-time view of emissions across the organization, enabling timely decision-making and proactive management. - Data Normalization and Reconciliation: Standardizes data in accordance with GHG reporting frameworks and performs thorough data reconciliation and analysis. - Automated Alerts and Notifications: Provides automated asset alerts and notifications to promptly address any deviations or issues. - Flexible Auditing: Facilitates comprehensive audits with a carbon ledger, simplifying regulatory reporting and compliance processes. Primary Value and Problem Solved: CERius addresses the critical need for precise and efficient emissions management in the pursuit of net-zero goals. By automating data collection and analysis, it reduces reliance on manual processes, minimizes errors, and enhances the accuracy of emissions reporting. This empowers organizations to confidently build and execute their decarbonization strategies, ensuring compliance with regulatory requirements and demonstrating a commitment to environmental sustainability.

Who Is the Company Behind CERius Emissions Management?

  • Seller: GE Vernova
  • HQ Location: Cambridge, Massachusetts, United States
  • LinkedIn® Page: www.linkedin.com
    70,796 employees on LinkedIn®
  • Ownership: NYSE:GEV

Clidapt

Clidapt is carbon accounting and ESG reporting software for SMEs and the consultants who serve them, built for inventories that must survive external verification. It calculates Scope 1, 2 and 3 emissions to the GHG Protocol and ISO 14064-1, with AR5 and AR4 factor sets. Emission factors are stored one row per year, so a 2024 activity keeps its 2024 factor and base-year comparisons stay valid when a grid gets cleaner. Reporting periods lock once verified, enforced in the database, not the interface. Multi-entity by design: each site or subsidiary holds its own inventory, and the group total is the sum of parts a verifier can trace. Data arrives by manual entry, CSV, or AI extraction from utility bills, which reads each document's declared period before extracting rows. Exports include a formula-live Excel workbook an auditor can recalculate. One customer passed an accredited third-party GHG verification with zero non-conformities. English and Spanish.

Who Is the Company Behind Clidapt?

  • Seller: Clidapt
  • Year Founded: 2024
  • HQ Location: Helsinki, FI
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

ClimateLinked

The Carbon Registry Services CPCP solution is a software package that has been adopted by leading industry players to allow them to manage their emissions portfolio. Functions range from emission capture through to trading and compliance.

Who Is the Company Behind ClimateLinked?

ClimatePartner Hub

The ClimatePartner Hub is a software for carbon accounting and climate strategies. With this software, companies can track their emissions (Scope 1-3), generate automated reports, and finance certified climate projects. Pricing is available upon request from the provider.

Who Is the Company Behind ClimatePartner Hub?

ClimateSeed

GEMS (GHG Emissions Management Software) is an advanced digital platform that helps businesses drive their decarbonization strategy by accurately measuring and reducing their carbon footprints. Designed for autonomous use or with expert support, GEMS offers optimal flexibility to meet any organization’s needs. Our platform simplifies data collection and enhances collaboration with both internal and external stakeholders. Powered by AI, it processes large data volumes and applies the most accurate emission factors from public and private databases. This enables automated carbon footprint calculations, ensuring compliance with international standards (GHG Protocol, Bilan Carbone®, ISO 14064). GEMS delivers clear, traceable results and helps organizations create reduction plans aligned with Science-Based Targets. The platform includes dedicated sub-modules for sectors like businesses, events, and finance, ensuring tailored greenhouse gas management.

Who Is the Company Behind ClimateSeed?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated October 3, 2024