# Best Carbon Accounting Software for Medium-Sized Businesses ## How Many Carbon Accounting Software Products Does G2 Track? **Total Products under this Category:** 138 ### Category Stats (Aug 2026) - **Average Rating:** 4.64/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** Ecologi (+2.4%) - Among all products in this category, Ecologi recorded the largest rating increase compared to last month _Last updated: August 06, 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 - 138+ 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](https://www.g2.com/categories/carbon-accounting/grids.png?focus%5B%5D=1301114&focus%5B%5D=1327981&focus%5B%5D=20026&focus%5B%5D=1235401) Highlighted products: osapiens, Carbonfact, Workiva, and Coolset. Underlying data: [Grid® JSON](https://www.g2.com/categories/carbon-accounting/grids.json?focus%5B%5D=osapiens&focus%5B%5D=carbonfact&focus%5B%5D=workiva-workiva&focus%5B%5D=coolset&segment=mid-market) **Sponsored** ### AgencyAnalytics AgencyAnalytics is the only reporting and insights platform built for marketing agencies. 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[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=1008103&secure%5Bchosen_at%5D=2026-08-15T18%3A31%3A01Z&secure%5Bdisplayable_resource_id%5D=620&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=16446&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=16446&secure%5Bresource_id%5D=1008103&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fcarbon-accounting%2Fmid-market&secure%5Btoken%5D=fb9fd6dc49abad117a37f291105f125ed649a9d15a176c88d2d99c537062d02f&secure%5Burl%5D=https%3A%2F%2Fagencyanalytics.com%2Fp%2Fg2%3Futm_source%3DG2%26utm_medium%3Dcpc%26utm_campaign%3DG2Clicks%26utm_id%3DG2Clicks%26utm_content%3Dfree-trial&secure%5Burl_type%5D=free_trial) ### [osapiens](https://www.g2.com/products/osapiens/reviews) osapiens develops software that empowers companies to drive sustainable growth across their entire value chain. The osapiens HUB, a multi-tenant hyperscaler platform designed to enable cross-company collaboration and AI-automation, combines over 25 solutions in two categories: Transparency solutions enable companies to report on financial and non-financial data, manage supply chains, mitigate risk of all kinds (including cyber-risks and trade- and geo-political risks), and ensure compliance with product, reporting and supply chain regulations. Efficiency solutions enable AI-driven supplier collaboration, maintenance, service, and distribution processes to improve operational performance and strengthen competitiveness. osapiens was founded in 2018. Headquartered in Mannheim, Germany, with offices across Europe and the United States, the company works with an international team of over 550 employees. It supports more than 2,500 customers worldwide, from SMEs to global enterprises across industries. 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:** 247 #### Who Is the Company Behind osapiens? - **Seller:** [osapiens](https://www.g2.com/sellers/osapiens) - **Company Website:** www.osapiens.com - **Year Founded:** 2018 - **HQ Location:** Mannheim, Germany - **Twitter:** @osapiens\_ 79 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=c1e68fdb5443f456bfb3f34bc8435b9870beeb087ca1a6e33b2775bb87bcd065&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fosapiens%2F&secure%5Burl_type%5D=linkedin_company_website) 595 employees on LinkedIn® #### Who Uses This Product? - **Top Industries:** Hospital & Health Care, Manufacturing - **Company Size:** 53% Large, 29% Medium #### What Do G2 Reviewers Say About osapiens? _AI-generated summary from verified user reviews_ ##### Pros - Users appreciate the **ease of use** of Osapiens, simplifying data transfer and collaboration across the organization. - Users highlight the **exceptional customer support** from Osapiens, praising responsiveness and friendly assistance in implementation. - Users value the **ease of use and extensive features** of Osapiens, enhancing implementation and support efficiency. - Users commend the **implementation ease** of Osapiens, facilitating quick onboarding and seamless integration across teams. - Users value the **ease of use** with Osapiens, enhancing data transfer and collaboration within organizations significantly. ##### Cons - Users note **limited functionality** with missing features and cumbersome data handling hindering their experience with osapiens. - Users experience a challenging **learning curve** due to self-guided onboarding and complex software updates. - Users find the **missing functionality** of osapiens limiting, particularly with basic features and complex supplier situations. - Users find the **complexity of the platform** challenging, particularly when managing unique processes and customizing workflows. - Users are frustrated by the **missing features** in Osapiens, impacting usability and hindering efficient reporting. #### What Are Recent G2 Reviews of osapiens? **["Really good platform but could be designed more with the end users in mind,"](https://www.g2.com/survey_responses/osapiens-review-13130402)** **Rating:** 4.0/5.0 stars _— Verified User in Manufacturing_ [Read full review](https://www.g2.com/survey_responses/osapiens-review-13130402) **["Reliable Support and Efficient Solutions from Osapiens"](https://www.g2.com/survey_responses/osapiens-review-12830057)** **Rating:** 5.0/5.0 stars _— Genesis V._ [Read full review](https://www.g2.com/survey_responses/osapiens-review-12830057) ### [Carbonfact](https://www.g2.com/products/carbonfact/reviews) Carbonfact is the only fashion-specific Carbon Accounting and Product-LCA platform that helps brands and manufacturers discover the exact sources of their environmental impact and take actionable steps to reduce their footprint. With the Carbonfact tool, you can run detailed and accurate life cycle assessments (LCAs) in a fraction of the time and cost of traditional methods. From key emission drivers across the value chain to product design decisions, our platform provides you with the insights you need to lower your environmental impact. Equipped with real-time dashboards, product analytics, and scenario analysis, our platform enables you to monitor your progress toward environmental objectives. You can simulate changes at the product level and delve into the intricate details of your products' environmental impact. With comprehensive carbon accounting covering Scope 1, 2, and 3, you gain a thorough understanding of your footprint, facilitating the development of a reduction strategy based on metrics. Carbonfact's LCA engine, adhering to globally recognized ISO14040 and PEF standards, streamlines the intricate and costly process of evaluating your products' environmental footprint throughout their entire life cycle. This includes stages from raw material extraction and production to manufacturing, transportation, distribution, sale, use, and end-of-life. The materials view feature simplifies tracking of all materials used in your products, providing information on their country of origin, carbon range, and the number of products associated with each material. Our automated data ingestion feature further enhances convenience by seamlessly importing and syncing data from any source and format. This eliminates the need for manual entry and minimizes data-entry errors, catering to various storage systems such as PLM or ERP databases, data warehouses like Snowflake or Google BigQuery, or even Excel files. With our proprietary heuristics, we bridge data gaps when primary data is unavailable, allowing us to provide approximate footprint measurements even in the absence of complete data. **Average Rating:** 4.9/5.0 **Total Reviews:** 15 #### Who Is the Company Behind Carbonfact? - **Seller:** [Carbonfact](https://www.g2.com/sellers/carbonfact) - **Year Founded:** 2021 - **HQ Location:** Paris, FR - **Twitter:** @carbonfact 598 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7a1c892a68068342c91a734bb727dfc8912742b930982a6f9116b1c05825799d&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcarbonfact&secure%5Burl_type%5D=linkedin_company_website) 45 employees on LinkedIn® #### Who Uses This Product? - **Top Industries:** Apparel & Fashion - **Company Size:** 75% Medium, 25% Large #### What Do G2 Reviewers Say About Carbonfact? _AI-generated summary from verified user reviews_ ##### Pros - Users commend the **ease of use** of Carbonfact, appreciating its intuitive design and quick integration into workflows. - Users value the **efficiency improvement** from Carbonfact, enhancing data management and enabling focused prioritization efforts. - Users commend the **responsive and helpful customer support** of Carbonfact, enhancing overall usability and experience. - Users appreciate the **customization options** of Carbonfact, allowing them to tailor the platform to their specific needs. - Users value the **efficient document management** of Carbonfact, significantly easing data handling and integration processes. ##### Cons - Users find **data management challenging** due to potential misinterpretation and incorrect mapping of integrated data systems. - Users find **data management issues** problematic, leading to misinterpretation and incorrect mapping challenges in Carbonfact. - Users face **difficult learning** curves with Carbonfact due to a lack of standard templates and prior experience requirements. - Users face significant **implementation difficulties** due to the lack of templates and prior experience required for data entry. - Users find Carbonfact's lack of **standard templates** for data entry limits its functionality and increases implementation challenges. #### What Are Recent G2 Reviews of Carbonfact? **["Customizable Platform with a Highly Responsive Team"](https://www.g2.com/survey_responses/carbonfact-review-12404362)** **Rating:** 4.5/5.0 stars _— Louise V._ [Read full review](https://www.g2.com/survey_responses/carbonfact-review-12404362) **["Competent team with a lot of know-how – always there with advice and action"](https://www.g2.com/survey_responses/carbonfact-review-12996260)** **Rating:** 5.0/5.0 stars _— Manuel B._ [Read full review](https://www.g2.com/survey_responses/carbonfact-review-12996260) ### [Workiva](https://www.g2.com/products/workiva-workiva/reviews) 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:** 2,130 #### Who Is the Company Behind Workiva? - **Seller:** [Workiva](https://www.g2.com/sellers/workiva) - **Company Website:** www.workiva.com - **Year Founded:** 2008 - **HQ Location:** Ames, Iowa - **Twitter:** @Workiva 5,277 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=6236d08f97795a846575edb90502566e63c4d9d23f3ab93dcc63f43bc41d9d24&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F732400%2F&secure%5Burl_type%5D=linkedin_company_website) 3,300 employees on LinkedIn® #### Who Uses This Product? - **Who Uses This:** Financial Reporting Manager, Senior Accountant - **Top Industries:** Accounting, Financial Services - **Company Size:** 57% Large, 28% Medium #### What Do G2 Reviewers Say About Workiva? _AI-generated summary from verified user reviews_ ##### Pros - Users value the **user-friendly interface** of Workiva, enhancing daily tasks and overall efficiency significantly. - Users value the **real-time collaboration** features of Workiva, enhancing teamwork and ensuring a single source of truth. - Users appreciate the **intuitive UI and strong integration** of Workiva, enhancing documentation and control management efficiency. - Users value the **real-time collaboration** features of Workiva, enhancing efficiency and streamlining report management for teams. - Users appreciate the **strong integration of reporting** , making compliance and analytics intuitive and efficient. ##### Cons - Users note the **missing features** in Workiva, such as integration options and a lack of automation in approvals. - Users find the **learning curve challenging** , particularly for those less familiar with technology, needing dedicated training time. - Users find the **learning difficulty** significant, requiring time to adapt and understand the platform's modules. - Users find the **limited functionality** of Workiva lacking advanced features compared to competitors like Excel. - Users find Workiva's **workflow management capabilities lacking** compared to Excel or Word, needing further development. #### What Are Recent G2 Reviews of Workiva? **["Streamlined Reporting with Room for Improvement"](https://www.g2.com/survey_responses/workiva-review-4678942)** **Rating:** 4.0/5.0 stars _— Chad B._ [Read full review](https://www.g2.com/survey_responses/workiva-review-4678942) **["Streamlined Reporting with Excel Integration"](https://www.g2.com/survey_responses/workiva-review-12603376)** **Rating:** 4.5/5.0 stars _— Michelle L._ [Read full review](https://www.g2.com/survey_responses/workiva-review-12603376) ### [Coolset](https://www.g2.com/products/coolset/reviews) Coolset is the ESG and supply chain platform for compliance-first teams. Coolset helps ESG, procurement and compliance leaders manage Scope 1-3 emissions, navigate evolving regulations, and deliver audit-ready results across frameworks such as CSRD, EUDR or CBAM from one place in the Coolset platform. Coolset replaces fragmented spreadsheets with a structured, intuitive system that supports real collaboration, traceable data, and scalable compliance delivery. Simple to adapt. Built to scale. Certified methodology by TÜV Rheinland. **Average Rating:** 4.7/5.0 **Total Reviews:** 18 #### Who Is the Company Behind Coolset? - **Seller:** [Coolset](https://www.g2.com/sellers/coolset) - **Year Founded:** 2022 - **HQ Location:** Amsterdam - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=b057cc2be7b5325e1395788b43ec12aca5fabb0b3164c4f46e60f28a1b3c4626&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcoolset%2F&secure%5Burl_type%5D=linkedin_company_website) 18 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 78% Medium, 22% Small #### What Do G2 Reviewers Say About Coolset? _AI-generated summary from verified user reviews_ ##### Pros - Users find Coolset's platform to be **easy to use** , guiding them smoothly through all necessary processes. - Users value the **intuitive design and robust support** of Coolset, simplifying sustainability management and project tracking. - Users commend the **implementation ease** of Coolset, benefiting from intuitive design and supportive customer guidance throughout the process. - Users value the **comprehensive compliance management** in Coolset, enhancing their CSRD implementation with professional support and insights. - Users appreciate the **intuitive design and customizable features** of Coolset, enhancing project management and sustainability tracking. ##### Cons - Users find that some features of Coolset are **overly complex** , complicating the onboarding process for new team members. - Users find the **complex UI** of Coolset can hinder onboarding new team members effectively. - Users find the **complex usability** of Coolset challenging, wishing for a more user-friendly, intuitive dashboard. - Users find the **difficult learning curve** of Coolset complicates onboarding for new team members. - Users experience **frequent updates** that occasionally hinder loading times and adjustments on the Coolset platform. #### What Are Recent G2 Reviews of Coolset? **["Taking the CSRD implementation to a more professional level with Coolset"](https://www.g2.com/survey_responses/coolset-review-10448017)** **Rating:** 4.5/5.0 stars _— Giel S._ [Read full review](https://www.g2.com/survey_responses/coolset-review-10448017) **["A user-friendly way to CSRD reporting and compliance"](https://www.g2.com/survey_responses/coolset-review-10424688)** **Rating:** 5.0/5.0 stars _— Jan P._ [Read full review](https://www.g2.com/survey_responses/coolset-review-10424688) Spotlight Categories [Video Conferencing Software](https://www.g2.com/categories/video-conferencing) [Employee Intranet Software](https://www.g2.com/categories/employee-intranet) [SaaS Backup Software](https://www.g2.com/categories/saas-backup) [Mobile Device Management (MDM) Software](https://www.g2.com/categories/mobile-device-management-mdm) [Data Science and Machine Learning Platforms](https://www.g2.com/categories/data-science-and-machine-learning-platforms) Similar Categories - [Anti-Money Laundering (AML)](/categories/anti-money-laundering) - [Audit Management](/categories/audit-management) - [Business Continuity Management](/categories/business-continuity-management-software) - [Call Compliance](/categories/call-compliance) - [Digital Communications Governance](/categories/digital-communications-governance) - [Disclosure Management](/categories/disclosure-management) - [Enterprise Risk Management (ERM)](/categories/enterprise-risk-management-erm) - [Entity Management](/categories/entity-management) - [Environmental, Social, and Governance (ESG) Reporting](/categories/environmental-social-and-governance-esg-reporting) - [Ethics and Compliance Learning](/categories/ethics-and-compliance-learning) - [Investigation Management](/categories/investigation-management) - [Operational Risk Management](/categories/operational-risk-management) - [Other GRC Tools](/categories/other-grc-tools) - [Policy Management](/categories/policy-management) - [Regulatory Change Management](/categories/regulatory-change-management) [Browse Carbon Accounting Themes](/categories/carbon-accounting/themes)