# Best Carbon Accounting Software for Medium-Sized Businesses *By [Lauren Worth](https://research.g2.com/insights/author/lauren-worth)* Products classified in the overall Carbon Accounting category are similar in many regards and help companies of all sizes solve their business problems. However, medium-sized business features, pricing, setup, and installation differ from businesses of other sizes, which is why we match buyers to the right Medium-Sized Business Carbon Accounting to fit their needs. Compare product ratings based on reviews from enterprise users or connect with one of G2's buying advisors to find the right solutions within the Medium-Sized Business Carbon Accounting category. In addition to qualifying for inclusion in the Carbon Accounting Software category, to qualify for inclusion in the Medium-Sized Business Carbon Accounting Software category, a product must have at least 10 reviews left by a reviewer from a medium-sized business. ## How Many Carbon Accounting Software Products Does G2 Track? **Total Products under this Category:** 134 ### Category Stats (Jul 2026) - **Average Rating**: 4.64/5 (↑0.02 vs Jun 2026) The average rating of products in this category, based on all submitted ratings - **Top Trending Product**: Watershed (+18.88%) - Among all products in this category, Watershed recorded the largest rating increase compared to last month *Last updated: July 02, 2026* ## How Does G2 Rank Carbon Accounting Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 3,000+ Authentic Reviews - 134+ 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. --- **Sponsored** ### Energy Elephant EnergyElephant is one of the fastest-growing energy and sustainability management software platforms. It covers energy, waste, water and more, across cost, consumption and carbon, all in one simple to use place. With over $3 billion in energy/sustainability costs managed to date and our software used in over 80 countries globally, we believe that everyone can achieve great sustainability outcomes without needing to be an expert. Our multi-award-winning sustainability software uses automation, AI, and analysis technologies to help you create, store, organise, analyse, report, and act on all your energy, waste, water, and carbon data in one simple, searchable location. The EnergyElephant platform supports data across multiple countries and currencies, making it ideal for businesses with geographically distributed operations. You can simply upload thousands of energy/fuel/water/waste bills, invoices, or spreadsheets to your EnergyElephant account and get executive-level insights in minutes. We can also automate the process of importing new bills for larger users. Our platform supports access to real-time IoT sensors and sub-metering systems from multiple country/region data sources, to provide live views and analyses. We support numerous methodologies to provide best-in-class accuracy in carbon footprints based on your actual energy use and grid-associated carbon emissions (Scope 1, Scope 2, Scope 3). And our easy-to-use, audit-ready reporting tools ensure your data is compliant with international protocols and frameworks, including: B Corp, CDP, CSRD, Energy Star, ERIC, GRESB, Greenhouse Gas Protocol, ISO 14001, ISO 50001, SBTi, SECR, and more. By empowering more organisations with the tools they need to improve sustainability, save time, meet compliance, and reduce costs, we are committed to accelerating decarbonisation and achieving the Net Zero future that our planet and people deserve. We’re always on the lookout for exceptional talent who want to use their superpowers for good, so please visit the Careers page on our website to learn more! [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=1008103&secure%5Bchosen_at%5D=2026-07-03T00%3A45%3A22Z&secure%5Bdisplayable_resource_id%5D=1008103&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=1008103&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=18502&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=d017e9baffb8d73ddb004d12b409d925165f5f033691f1bf1656f7deba9fadff&secure%5Burl%5D=https%3A%2F%2Fenergyelephant.com%2F%3Futm_source%3Dg2&secure%5Burl_type%5D=custom_url) --- ## What Are the Top-Rated Carbon Accounting Software Products in 2026? ### 1. [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:** 231 **Who Is the Company Behind osapiens?** - **Seller:** [osapiens](https://www.g2.com/sellers/osapiens) - **Company Website:** https://www.osapiens.com - **Year Founded:** 2018 - **HQ Location:** Mannheim, Germany - **Twitter:** @osapiens_ (79 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/osapiens/ (595 employees on LinkedIn®) **Who Uses This Product?** - **Top Industries:** Hospital & Health Care, Automotive - **Company Size:** 55% Enterprise, 27% Mid-Market #### What Are osapiens's Pros and Cons? **Pros:** - Ease of Use (24 reviews) - Customer Support (21 reviews) - Features (15 reviews) - Implementation Ease (14 reviews) - Helpful (9 reviews) **Cons:** - Limited Functionality (13 reviews) - Learning Curve (5 reviews) - Missing Functionality (5 reviews) - Complexity (4 reviews) - Missing Features (4 reviews) ### What Do G2 Reviewers Say About osapiens? *AI-generated summary from verified user reviews* **Pros:** - Users find the **ease of use** in Osapiens exceptional, streamlining data collection and collaboration effortlessly. - Users commend Osapiens for its **efficient customer support** , providing quick and competent assistance for all inquiries. - Users commend Osapiens for its **intuitive platform and excellent customer support** , enhancing collaboration and data management efficiency. - Users find the **implementation ease** of Osapiens remarkable, with quick onboarding and intuitive use across all departments. - Users commend the **user-friendly data transfer** of Osapiens, making collaboration and data management effortless across organizations. **Cons:** - Users feel the **limited functionality** of Osapiens hinders flexibility and complicates handling complex supplier situations. - Users face a challenging **learning curve** due to self-guided onboarding and complex processes requiring frequent adaptation. - Users note the **missing functionality** in osapiens, finding it inconvenient for complex supplier situations and lacking advanced features. - Users find the **complexity** of questionnaire creation and workflow processes to be a significant hurdle in osapiens. - Users find **missing features** frustrating, as essential tools like a pro/cons list and report submission interface are lacking. #### What Are Recent G2 Reviews of osapiens? **"[Continuous Improvement Meets Strong Customer Partnership](https://www.g2.com/survey_responses/osapiens-review-12692485)"** **Rating:** 5.0/5.0 stars *— Bahia F.* [Read full review](https://www.g2.com/survey_responses/osapiens-review-12692485) --- **"[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) --- ### 2. [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:** https://www.linkedin.com/company/carbonfact (45 employees on LinkedIn®) **Who Uses This Product?** - **Top Industries:** Apparel & Fashion - **Company Size:** 75% Mid-Market, 25% Enterprise #### What Are Carbonfact's Pros and Cons? **Pros:** - Ease of Use (3 reviews) - Efficiency Improvement (3 reviews) - Customer Support (2 reviews) - Customization (2 reviews) - Document Management (2 reviews) **Cons:** - Data Management (1 reviews) - Data Management Issues (1 reviews) - Difficult Learning (1 reviews) - Implementation Difficulty (1 reviews) - Limited Functionality (1 reviews) ### What Do G2 Reviewers Say About Carbonfact? *AI-generated summary from verified user reviews* **Pros:** - Users find Carbonfact to be **highly user-friendly** , enabling quick integration and immediate value with minimal data quality issues. - Users highlight the **efficiency improvements** of Carbonfact, simplifying their data management and enhancing decision-making processes. - Users value the **responsive customer support** from Carbonfact, enhancing their experience and satisfaction with the platform. - Users appreciate the **customization options** in Carbonfact, allowing them to tailor the platform to their unique needs. - Users value the **user-friendly document management** of Carbonfact, enhancing efficiency and ease of integration in their workflows. **Cons:** - Users find that **data management can be tricky** , often facing issues with misinterpretation and incorrect mapping. - Users find **data management issues** problematic, often facing misinterpretations and incorrect mappings in Carbonfact. - Users find the **difficult learning** curve of Carbonfact challenging, especially with no standard template for data entry. - Users face **implementation difficulties** due to the absence of standard templates and lack of prior experience with Carbonfact. - Users find the **limited functionality** of Carbonfact challenging, especially due to the lack of standard templates. #### 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) --- ### 3. [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:** 2,131 **Who Is the Company Behind Workiva?** - **Seller:** [Workiva](https://www.g2.com/sellers/workiva) - **Company Website:** https://www.workiva.com - **Year Founded:** 2008 - **HQ Location:** Ames, Iowa - **Twitter:** @Workiva (5,277 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/732400/ (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% Enterprise, 28% Mid-Market #### What Are Workiva's Pros and Cons? **Pros:** - Ease of Use (364 reviews) - Collaboration (196 reviews) - Features (181 reviews) - Team Collaboration (178 reviews) - Reporting (151 reviews) **Cons:** - Missing Features (113 reviews) - Learning Curve (85 reviews) - Learning Difficulty (81 reviews) - Limited Functionality (80 reviews) - Limitations (70 reviews) ### What Do G2 Reviewers Say About Workiva? *AI-generated summary from verified user reviews* **Pros:** - Users commend Workiva for its **user-friendly interface** , making daily auditing tasks easy and efficient to manage. - Users appreciate the **real-time collaboration** features of Workiva, enhancing teamwork and ensuring a single source of truth. - Users appreciate the **intuitive UI and strong integration** in Workiva, enhancing documentation and collaboration efficiency. - Users value the **real-time collaboration** features in Workiva, enhancing efficiency and streamlining team communication on reports. - Users value the **ease of integrated reporting** , facilitating efficient compliance and insightful decision-making with great user experience. **Cons:** - Users note **missing features** in Workiva, like manual approvals and limited integration options, hindering overall efficiency. - Users find the **learning curve steep** , requiring significant time and experience for effective use, especially for the less tech-savvy. - Users find the **learning difficulty** challenging, especially for those less tech-savvy needing extra time to adapt. - Users note **limited functionality** in Workiva compared to Excel, wishing for more advanced features and maturity in workflows. - Users find Workiva's **workflow management capabilities lacking** compared to traditional tools like Excel and Word. #### What Are Recent G2 Reviews of Workiva? **"[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) --- **"[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) --- ### 4. [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:** https://www.linkedin.com/company/coolset/ (18 employees on LinkedIn®) **Who Uses This Product?** - **Company Size:** 78% Mid-Market, 22% Small-Business #### What Are Coolset's Pros and Cons? **Pros:** - Ease of Use (6 reviews) - Sustainability (5 reviews) - Implementation Ease (4 reviews) - Compliance Standards (3 reviews) - Features (3 reviews) **Cons:** - Complexity (1 reviews) - Complex UI (1 reviews) - Complex Usability (1 reviews) - Difficult Learning (1 reviews) - Frequent Updates (1 reviews) ### What Do G2 Reviewers Say About Coolset? *AI-generated summary from verified user reviews* **Pros:** - Users find Coolset's platform incredibly **easy to use** , with helpful guidance and responsive support throughout their experience. - Users commend Coolset for its **customizable features and user-friendly design** , enhancing sustainability project management effectively. - Users commend the **implementation ease** of Coolset, appreciating its intuitive design and excellent support throughout the process. - Users appreciate the **thorough compliance management** in Coolset, enhancing professionalism and supporting long-term success. - Users appreciate the **intuitive design and ease of use** of Coolset, facilitating effective project management and sustainability tracking. **Cons:** - Users find the **complexity of certain features** in Coolset can hinder onboarding new team members effectively. - Users find the **complex UI** of Coolset makes onboarding new team members challenging and complicates their experience. - Users find the **dashboard complex and not user-friendly** , suggesting improvements for easier navigation of data by different categories. - Users find that the **difficult learning** curve of Coolset complicates onboarding for new team members. - Users find the **frequent updates** sometimes hinder loading times and adjustments, affecting the overall user experience. #### What Are Recent G2 Reviews of Coolset? **"[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) --- **"[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) --- ## What Is Carbon Accounting Software? [Governance, Risk & Compliance Software](https://www.g2.com/categories/governance-risk-compliance) ## What Software Categories Are Similar to Carbon Accounting Software? - [Sustainability Management Software](https://www.g2.com/categories/sustainability-management) - [Environmental, Social, and Governance (ESG) Reporting Software](https://www.g2.com/categories/environmental-social-and-governance-esg-reporting)