Best Enterprise Carbon Accounting Software

How Many Carbon Accounting Software Products Does G2 Track?

Total Products under this Category: 201

Category Stats (Oct 2026)

  • Average Rating: 4.64/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Energy Elephant (+0.26%) - Among all products in this category, Energy Elephant recorded the largest rating increase compared to last month

Last updated: October 16, 2026

How Does G2 Rank Carbon Accounting Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 3,300+ Authentic Reviews
  • 201+ 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, Workiva, osapiens, carbmee EIS, Terrascope, and StepChange.

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

Watershed

Watershed is the enterprise sustainability AI platform. Companies like Airbnb, Carlyle Group, FedEx, Visa, and Dr. Martens use Watershed to measure, report, and act on their emissions—producing audit-ready carbon footprints that drive real decarbonization. Purpose-built AI agents accelerate every step, from data cleaning and emissions factor mapping to report drafting, while embedded climate intelligence and human review ensure results you can stand behind. Named a leader in the Verdantix 2026 Green Quadrant and a CDP-accredited gold solutions provider, Watershed now manages more than 3 gigatonnes of CO2e emissions through our customers. Key features: - Measurement: More than 60 pre-built integrations and a library of 500,000+ emissions factors, benchmarks, and methodologies deliver granular, audit-ready carbon footprints across your entire business—down to individual products and suppliers. - Reporting: Prepare and file sustainability disclosures across global frameworks, including ISSB, CDP, CSRD, TCFD, California SB253/261, and more. AI agents draft reports in the right format using your data, with full data lineage, peer benchmarks, review workflows, and change tracking. - Sustainability AI: Purpose-built AI agents automate data cleaning, formatting, and analysis—getting teams to actionable data up to 80% faster. Watershed Product Footprints uses AI to decompose purchased goods into their underlying materials and processes, so procurement and sustainability teams can compare suppliers, run what-if scenarios, and surface real reduction levers. All AI is built with encoded sustainability intelligence, multi-agent safeguards for accuracy, full transparency into how results are calculated, and human control at every step. - Decarbonization: Develop a sustainability plan, model SBT-aligned targets, and track progress against them. Identify the highest-impact reduction levers across your operations and supply chain. Switch to clean power through virtual power purchase agreements, and access a marketplace of scientifically vetted, high-quality carbon removal and avoidance projects. - Security and compliance: Enterprise-grade API, data governance, user access controls, and SOC 1 and SOC 2 compliance on a cloud-based platform. What Watershed solves: For most companies, the majority of emissions sit in their supply chains—and until recently, that data was either too slow or too imprecise to act on. Watershed gives sustainability and procurement teams a single platform to measure with precision, meet evolving disclosure requirements, and build a credible decarbonization plan. Sustainability AI built on climate science surfaces reduction opportunities that traditional approaches miss, while connecting sustainability data to real business decisions like procurement, energy sourcing, and supplier engagement.

Average Rating: 4.5/5.0

Total Reviews: 25

Who Is the Company Behind Watershed?

  • Seller: Watershed
  • Company Website:
  • Year Founded: 2019
  • HQ Location: San Francisco, CA
  • LinkedIn® Page: www.linkedin.com
    642 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 84% Large, 8% Medium

What Are Recent G2 Reviews of Watershed?

Workiva

Workiva Inc. (NYSE:WK) is on a mission to power transparent reporting for a better world. We build and deliver the world’s leading regulatory, financial, and ESG reporting solutions to meet stakeholder demands for action, transparency, and disclosure of financial and non-financial data. Our cloud-based platform simplifies the most complex reporting and disclosure challenges by streamlining processes, connecting data and teams, and ensuring consistency. Learn more at workiva.com. Follow Workiva on LinkedIn: www.linkedin.com/company/workiva Like Workiva on Facebook: www.facebook.com/workiva

Average Rating: 4.5/5.0

Total Reviews: 2,245

Who Is the Company Behind Workiva?

  • Seller: Workiva
  • Company Website:
  • Year Founded: 2008
  • HQ Location: Ames, Iowa
  • Twitter: @Workiva
    5,277 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    3,330 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Financial Reporting Manager, Senior Accountant
  • Top Industries: Accounting, Financial Services
  • Company Size: 56% Large, 28% Medium

What Do G2 Reviewers Say About Workiva?

AI-generated summary from verified user reviews

Pros
  • Users find Workiva to be super easy and intuitive to use, making updates and reviews seamless.
  • Users value the efficient collaboration features of Workiva, enhancing teamwork and streamlining their reporting processes.
  • Users praise Workiva for its intuitive linking tool that streamlines financial reporting and saves significant time.
  • Users appreciate the real-time collaboration features of Workiva, enhancing team efficiency and simplifying report management.
  • Users appreciate the strong integration of reporting, making compliance and analytics intuitive and efficient.
Cons
  • Users feel there are missing features in Workiva, particularly regarding integration and support for various reporting needs.
  • Users note a significant learning curve with Workiva, requiring time and experience to navigate the platform effectively.
  • Users find the learning difficulty challenging, especially for those who are less tech-savvy and require dedicated time.
  • Users find Workiva's limited functionality frustrating, particularly lacking features like pivot tables and intuitive editing.
  • Users find Workiva's limitations frustrating, especially lacking features like pivot tables and seamless Office integration.

What Are Recent G2 Reviews of Workiva?

osapiens

osapiens combines compliance and supplier intelligence in a single AI platform, helping companies manage risk and become more resilient. The osapiens HUB brings together more than 25 solutions across seven product suites, enabling companies to centrally manage supplier relationships, compliance, and supply chains, and to optimize maintenance, service, and distribution. More than 2,500 customers worldwide, from SMEs to global enterprises, trust osapiens, headquartered in Mannheim, Germany. Learn more about the osapiens HUB: https://osapiens.com Follow us on LinkedIn: https://www.linkedin.com/company/osapiens

Average Rating: 4.4/5.0

Total Reviews: 253

Who Is the Company Behind osapiens?

  • Seller: osapiens
  • Company Website:
  • Year Founded: 2018
  • HQ Location: Mannheim, Germany
  • Twitter: @osapiens_
    79 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    602 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Hospital & Health Care, Manufacturing
  • Company Size: 54% Large, 28% Medium

What Do G2 Reviewers Say About osapiens?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Osapiens, making data management and collaboration simpler and quicker.
  • Users commend the excellent customer support of Osapiens, appreciating their quick and competent responses to inquiries.
  • Users commend Osapiens for its intuitive platform and seamless cross-tool data integration, enhancing collaboration and efficiency.
  • Users praise the implementation ease of Osapiens, highlighting quick onboarding and intuitive design for smooth integration.
  • Users value the ease of data transfer and collaboration in Osapiens, enhancing organizational efficiency and user experience.
Cons
  • Users find the platform has limited functionality, making it less effective for complex supplier situations and integration.
  • Users face a steep learning curve due to self-directed onboarding and adapting to frequent updates.
  • Users find the missing functionality frustrating, as it limits flexibility and complicates interactions with other systems.
  • Users face complexity in creating questionnaires and workflows, leading to an inconvenient overall experience.
  • Users note the missing features in osapiens, expressing a desire for improved functionality and reporting options.

What Are Recent G2 Reviews of osapiens?

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carbmee EIS

Carbmee Environmental Intelligence System (EIS) is a sophisticated AI-driven Environmental Intelligence platform designed to give you full control over the E in ESG, managed with the rigor of ERP. Make emissions and environmental impact traceable, auditable and actionable with AI-powered scenario planning, the most flexible data foundation, and superior supplier collaboration. This software solution focuses on creating a resilient, low-carbon value chain, enabling businesses to implement long-term strategies that align with sustainability goals. By leveraging advanced automation, supplier collaboration and the most granular data doundation, Carbmee EIS provides rapid insights that empower organizations to make informed decisions regarding their environmental impact. Targeted primarily at businesses aiming to enhance their sustainability practices, Carbmee EIS addresses a variety of use cases essential for effective carbon management. These include comprehensive tracking of Scope 1, 2, and 3 emissions, which encompass direct and indirect emissions from operations, energy consumption, and supply chain activities. The platform also facilitates the calculation of product carbon footprints, enabling companies to understand the environmental impact of their products throughout their lifecycle. Additionally, it supports supply chain emissions management, ensuring that organizations can engage and onboard suppliers who align with their sustainability objectives. Key features of Carbmee EIS include AI-driven reporting and analysis, which streamline the process of emissions reduction planning. This functionality allows users to identify areas for improvement and develop targeted strategies for lowering their carbon footprint. The platform also extends its capabilities to broader Environmental (ESG) management, covering aspects such as waste management, recycling, repairability, renewable energy, and ecodesign. By offering a holistic approach to sustainability, Carbmee EIS helps businesses not only achieve compliance with regulations like the Carbon Border Adjustment Mechanism (CBAM), Corporate Sustainability Reporting Directive (CSRD), and European Union Deforestation Regulation (EUDR) but also future-proof their operations in an increasingly eco-conscious market. Founded in Berlin in 2021, Carbmee has rapidly established a global presence among industry leaders, reflecting its commitment to fostering sustainable business practices. By utilizing Carbmee EIS, enterprises can unlock significant reductions in emissions at scale, ultimately contributing to the creation of a net-zero enterprise. This platform is not just a tool for compliance; it is a strategic partner in building a sustainable future, ensuring that businesses are well-equipped to navigate the complexities of environmental responsibility in the modern economy.

Average Rating: 4.5/5.0

Total Reviews: 17

Who Is the Company Behind carbmee EIS?

  • Seller: carbmee
  • Company Website:
  • Year Founded: 2021
  • HQ Location: Berlin, Berlin, Germany
  • LinkedIn® Page: www.linkedin.com
    77 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 82% Large, 12% Small

What Do G2 Reviewers Say About carbmee EIS?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the strong support from the Carbmee team, enhancing their experience with the EIS product.
  • Users value the s seamless integration capabilities of Carbmee EIS, enhancing collaboration and data accuracy across sustainability efforts.
  • Users value the seamless integrations of Carbmee EIS, enhancing collaboration and data accuracy for improved sustainability efforts.
  • Users appreciate the effective collaborative editing features of Carbmee EIS, enhancing supplier engagement and data accuracy.
  • Users appreciate the ease of use of Carbmee EIS, thanks to its intuitive design and structured functionality.
Cons
  • Users find the missing functionality to upload spreadsheets frustrating, alongside unclear supplier guidance and costly API requirements.
  • Users find the time consumption for integration and data alignment with carbmee EIS to be a significant drawback.
  • Users often face incorrect AI matching of emitter names, leading to frustrations and inefficiencies in use.
  • Users find the high costs of additional features for the Carbmee EIS frustrating and not clearly communicated.
  • Users are frustrated by the file management issues, particularly the lack of spreadsheet uploads and unclear costs.

What Are Recent G2 Reviews of carbmee EIS?

Terrascope

Terrascope is The Easiest Platform to Measure and Decarbonize Land, Nature, and the Net-Zero Economy Built for enterprises navigating complex sustainability challenges across corporate operations, products, and supply chains, Terrascope transforms carbon management from a compliance burden into a strategic advantage. Companies in food, agriculture, and manufacturing achieve results in weeks that previously took quarters. Public case studies prove it: 5x faster measurement cycles, 92% accuracy in filling supplier data gaps, and 100% approval rate for SBTi FLAG target submissions. Global leaders including Kellanova, Mitsubishi Shokuhin, Dole, Vitasoy, Sigma Alimentos, and Olam Agri rely on Terrascope because it makes the hardest parts of decarbonization actually manageable. Recognized by Verdantix 4 times, the platform combines AI-powered automation with deep expertise in land-intensive sectors where Scope 3 emissions drive 80-90% of total footprints. Business impact, not just compliance: » Speed to value: Shorten measurement cycles by up to 80% vs. traditional approaches. Teams focus on reduction, not data wrangling. » Audit-ready precision: 92% accuracy in estimating supplier emissions when primary data is unavailable, maintaining full transparency and traceability. » ROI-driven action: Scenario modeling ties every decarbonization initiative to financial impact, enabling CFOs to make informed trade-offs between emissions targets and margin protection. Three capabilities that set Terrascope apart: 1. AI-Powered Data Intelligence Transform raw, unstructured supply chain data into credible climate insights 5x faster than manual approaches. AI-assisted ingestion handles the messy reality of global value chains: inconsistent formats, missing data, multiple languages, and partial records. 2. Comprehensive Scope 3 Measurement (CCF, PCF, FLAG) Purpose-built for land-intensive sectors with full support for agricultural emissions, forestry, land use change, and carbon sequestration. The only platform where you can measure corporate footprints, product-level carbon intensity, and FLAG emissions on a single system. 3. Financial-Grade Decarbonization Planning Simulate reduction scenarios with clear cost-benefit analysis. Prioritize initiatives that deliver both emissions reductions and bottom-line value. Enable cross-functional alignment between sustainability, procurement, and finance teams. Enterprise compliance without compromise: Full alignment with GHG Protocol, SBTi (including FLAG Guidance), LSRG, CDP, CSRD, TCFD, ISSB, and PACT frameworks. Security and assurance through ISO 27001, ISO 14064, AICPA SOC 2 Type II, and EY-assured methodology. Generic carbon platforms fail to deliver the transparency and granularity required for sectors with complex value chains. Agricultural emissions, land use change, biogenic carbon flows, and fragmented supplier data create measurement nightmares. Terrascope was purpose-built to solve these challenges through AI-assisted data processing, proprietary agri-food emission factor libraries, and over 10 years of ground truth from measuring 500+ million tonnes of emissions across food and agricultural supply chains.

Average Rating: 4.3/5.0

Total Reviews: 16

Who Is the Company Behind Terrascope?

  • Seller: Terrascope
  • Company Website:
  • Year Founded: 2021
  • HQ Location: Marine Parade, SG
  • LinkedIn® Page: www.linkedin.com
    65 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 63% Large, 13% Medium

What Do G2 Reviewers Say About Terrascope?

AI-generated summary from verified user reviews

Pros
  • Users praise the ease of use of Terrascope, highlighting its simple navigation and straightforward data uploading methods.
  • Users value the helpful and friendly customer support from Terrascope, enhancing confidence and simplifying processes.
  • Users value the efficiency improvement with Terrascope, simplifying carbon emissions analysis and integrating effortlessly into workflows.
  • Users value the audit trail function of Terrascope, which simplifies the audit process and boosts confidence in the product.
  • Users value the easy data upload feature of Terrascope, streamlining emissions data compilation for complex structures.
Cons
  • Users find the platform's complex usability challenging, noting difficulties with the interface and data filtering.
  • Users note that the user interface issues hinder the overall user experience despite the strong capabilities of the module.
  • Users feel that Terrascope has a poor user experience due to its complicated and non-intuitive platform design.
  • Users find the UI complicated and non-intuitive, making data filtering and navigation challenging and frustrating.
  • Users face data management issues with sorting limitations, restricting targeted interventions across various categories and scopes.

What Are Recent G2 Reviews of Terrascope?

StepChange

StepChange ESG Accelerator is a comprehensive software solution designed to empower organizations of all sizes to automate and streamline their ESG reporting and sustainability journeys. The ESG Accelerator has three modules: Carbon Accounting, ESG Compliance and Reporting, and Supply Chain Sustainability, providing a holistic approach to baselining, setting goals, reporting, and planning reductions. The platform supports automated data ingestion; science-based goal setting and benchmarking for ESG performance; assurance-ready, evidence-backed data governance; AI-powered analytics and insights; reporting across international frameworks and standards including BRSR, CDP, GRI, TNFD, IFRS, SASB, ISSB, CSRD For more details: https://www.stepchange.earth/solutions-esgsoftware

Average Rating: 4.8/5.0

Total Reviews: 15

Who Is the Company Behind StepChange?

Who Uses This Product?

  • Top Industries: Medical Devices
  • Company Size: 87% Large, 13% Medium

What Do G2 Reviewers Say About StepChange?

AI-generated summary from verified user reviews

Pros
  • Users rave about the immediate and professional support from StepChange, enhancing their overall experience significantly.
  • Users commend the ease of use of StepChange, highlighting its simple design and quick problem resolution.
  • Users find the helpful database of StepChange excellent for storing and analyzing ESG metrics effectively.
  • Users value the robust analytics capabilities of StepChange, enabling effective ESG assessment and carbon footprint measurement.
  • Users value the helpful database of StepChange for effective data management and ESG reporting processes.
Cons
  • Users feel the user interface needs improvement, as it can be unintuitive and leads to accidental navigation.
  • Users find the complex UI challenging and feel improvements are necessary for a better user experience.
  • Users find navigation issues challenging, especially with accidental swipes and a cluttered UI detracting from usability.
  • Users find the poor interface design of StepChange frustrating, making navigation difficult and unintuitive for new users.
  • Users find the poor navigation challenging, particularly those unfamiliar with ESG and sustainability concepts.

What Are Recent G2 Reviews of StepChange?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated