Total Products under this Category: 199
Last updated: September 29, 2026
Why You Can Trust G2's Software 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.
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)
Sylvera is a carbon intelligence platform that delivers comprehensive and accessible carbon ratings and insights.
Tanso is the ESG and carbon accounting software that industrial companies in DACH rely on to stay competitive and compliant. The Tanso platform enables companies to meet customer requests and regulatory requirements in sustainability, ensuring data management to the highest standards through structured, audit-proof processes. Built specifically for producing companies, Tanso combines deep industrial carbon expertise with flexible data architecture that integrates seamlessly into the existing IT landscape. The platform supports major regulatory frameworks including CSRD, EU Taxonomy, VSME, ISO 14064, EcoVadis, and SAQ 5.0, and features TÜV Rheinland-certified carbon accounting methodology. Developed and hosted in Germany, Tanso is trusted by over 300 industrial customers in carbon-intensive sectors such as automotive, mechanical engineering, food and chemicals to strengthen their competitive position in sustainability and ESG performance.
Average Rating: 5.0/5.0
Total Reviews: 1
"Simple, flexible, and supportive - Tanso is unbeatable"
Rating: 5.0/5.0 stars
— Marcus S.
Terrave is an AI-powered platform that generates Environmental Product Declarations (EPDs) for building product manufacturers and performs whole-building lifecycle assessment (LCA) for architects — in minutes instead of months. Manufacturers upload their bill of materials. Terrave's AI matches every ingredient to verified LCA data from ecoinvent, calculates all environmental impact categories, and generates a verification-ready EPD with full background report. Architects upload a material schedule. Terrave matches every material against 70,000+ published EPDs in TerraBase, calculates total building embodied carbon, and generates LEED-ready documentation. Built for Buy Clean compliance. ISO 14025, EN 15804+A2, and ISO 21930 conformant.
Thrust Calculator gives you accurate CO2 measurements & analysis for all of your business travel.
Unravel Carbon is the climate platform helping companies with global supply chains make data-driven decisions. Our platform provides enterprises with reliable insights into their emissions, enabling them to measure, reduce, and report with confidence. We are trusted by companies across key sectors, including manufacturing, fashion, consumer goods, food and beverage, and financial services.
The Virtual Sustainability Officer® is an all-in-one net zero solution and climate technology platform. Its primary purpose is to help businesses measure, monitor, report, and reduce their carbon emissions and manage their environmental, social, and governance (ESG) strategies. The platform enables organisations to achieve their net zero carbon objectives with efficiency and precision.
Vizcab's mission is to help construction players manage the carbon emissions of their projects by securing the achievement of RE2020 thresholds from the sketch stage with Explo, and by making the most of your regulatory LCAs with Eval.
