Best Carbon Accounting Software - Page 12

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)

Reduzer

Reduzer is a carbon footprint calculation platform built specifically for the construction industry, enabling teams to make informed, data‑driven carbon reduction decisions across all project phases. The tool is used by contractors, architects, developers, and consultants, and includes features such as BIM integration, a verified EPD library, and collaborative workflows. Reduzer helps users understand emissions accurately, compare design choices, and work efficiently toward climate goals. With automated processes and intuitive user flow, the platform allows customers to deliver LCA results quickly and with confidence.

Who Is the Company Behind Reduzer?

  • Seller: Reduzer
  • Year Founded: 2021
  • HQ Location: Oslo, NO
  • LinkedIn® Page: www.linkedin.com
    20 employees on LinkedIn®

SBT Tracker

SBT Tracker is a carbon accounting and decarbonization platform for manufacturers, energy-intensive industries, and supply-chain companies facing CSRD, CBAM, and Scope 3 value-chain pressure. Build GHG inventories (Scope 1–2 today; Scope 3 module rolling out), set science-based targets, track progress against baselines, and export audit-ready reports. Built for sustainability teams, environmental managers, and consultants — with Turkish and English UI. Key capabilities: • Activity-based emission calculations with sector templates (textile, manufacturing, and more) • Wet-process water & benchmark module for textile suppliers • Goal setting, KPI dashboards, and progress reporting • Customizable PDF/Excel exports for buyers, auditors, and regulators • Credit-based SaaS with Stripe billing Ideal for SMEs and mid-market firms preparing for expanded EU decarbonization obligations from 2028 — and for suppliers pulled into large buyers’ Scope 3 reporting programs.

Who Is the Company Behind SBT Tracker?

Scope 1 & 2 Emissions Management

Taxilla Scope 1 & 2 Emissions Management helps organizations automate the collection, calculation, validation, and reporting of Scope 1 and Scope 2 greenhouse gas (GHG) emissions. The solution brings emissions and financial data together by connecting information from utility bills, fuel records, refrigerant data, operational systems, AP invoices, cost centers, vendors, and GL categories. This finance-integrated approach helps sustainability and finance teams improve data accuracy, traceability, and readiness for audit and assurance. Taxilla standardizes emissions calculations using governed emission factors, unit normalization, controlled methodologies, and automated calculation workflows. Built-in validations, variance checks, missing-data alerts, exception management, approval workflows, evidence attachments, and audit trails help organizations maintain consistent and reliable emissions records across sites and reporting periods. Teams can monitor Scope 1 & 2 emissions through dashboards and drill down by entity, facility, vendor, cost center, or category. The solution also supports multi-site and multi-country operations while providing centralized governance with local data ownership. Designed as an ERP-agnostic layer, Taxilla integrates with existing finance and operational systems without requiring organizations to replace their current technology stack. It helps businesses move away from spreadsheet-based emissions reporting toward a more automated, controlled, and audit-ready process.

Who Is the Company Behind Scope 1 & 2 Emissions Management?

Seneca ESG

Seneca ESG is a sustainability software company providing ESG data management, analytics, scoring, disclosure/reporting, portfolio analyses, and stewardship for corporates, investment advisors, investment managers, and government entities. We have integrated advanced technologies such as AI/LLM and industry-leading ERP systems to streamline key ESG workflows, highlight similarities across ESG indicators & questions, and identify & score unstructured ESG information.

Who Is the Company Behind Seneca ESG?

Senseible

Agent automating scope 3 compliance for enterprise supply chain. AI verification infrastructure for MSMEs in climate finance. Senseible turns MSME business documents (GST, invoices, energy bills) into verified, finance ready carbon data in under 47 seconds. Unlike audit led expensive carbon tools built for large enterprises, Senseible removes audits, consultants, and manual workflows. Senseible is infrastructure grade MRV designed to unlock compliance, exports, and climate finance for MSMEs at scale. Rewarding sustainability.

Who Is the Company Behind Senseible?

Sievo

Sievo provides actionable reliable procurement analytics. ​ Designed for large enterprises with $1B+ in revenue, loved by global companies featuring Mars, Levi’s, and Deutsche Telekom and praised by key analysts, we provide a future-proof solution with 63x ROI.​ We empower Procurement, Finance, IT, and Sustainability teams to overcome their data chaos and capture all insights, drive bottom-line savings, improve ESG performance, and streamline budgeting and forecasting. ​ Sievo goes beyond world-class analytics and dashboards. We help our customers close the data-to-action gap with reliable insights, recommendations, and benchmarks by combining internal, third-party, public and cross-customer data.​ By processing spend data equivalent to over 2% of the world's GDP annually, we enable fast, informed decision-making and deliver industry's highest data quality with end-to-end data accountability. ​ We call it procurement excellence - you can call it Sievo.

Average Rating: 4.1/5.0

Total Reviews: 9

Who Is the Company Behind Sievo?

  • Seller: Sievo
  • Year Founded: 2003
  • HQ Location: Helsinki, Uusimaa
  • Twitter: @Sievo
    1,157 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    440 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 89% Large, 11% Medium

What Do G2 Reviewers Say About Sievo?

AI-generated summary from verified user reviews

Pros
  • Users find Sievo highly user-friendly, enabling intuitive use and easy learning through hands-on experiences.
  • Users appreciate the user-friendly interface of Sievo, facilitating intuitive learning and effective data visualization.
  • Users praise Sievo for its user-friendly data management, enabling easy data visualization and collaboration across business units.
  • Users find Sievo user-friendly and intuitive, empowering data-driven initiatives and simplifying spend visualization effectively.
  • Users appreciate the simplicity and user-friendliness of Sievo's spend analytics, enabling data-driven initiatives effortlessly.
Cons
  • Users find missing features in Sievo, such as data visibility limitations and invoice viewing, hinder their experience.
  • Users suggest improving data management features, specifically for visibility limits and accurate account recognition.
  • Users desire improved access control to limit data visibility by cost centers or projects for expanded usability.
  • Users experience bugs in automatic reclassification, leading to confusion with supplier names and account recognition issues.
  • Users find the complex formulas hard to manage, preferring external analysis methods to simplify their processes.

What Are Recent G2 Reviews of Sievo?

SINAI

Who Is the Company Behind SINAI?

  • Seller: SINAI
  • Year Founded: 2017
  • HQ Location: San Francisco, US
  • LinkedIn® Page: www.linkedin.com
    64 employees on LinkedIn®

SpheraCloud

Connect more information and insights across your enterprise with Sphera’s innovative, integrated risk management platform. SpheraCloud® gets the right information to the right people at the right time, but also offers an Integrated Risk Management approach that breaks down information silos.

Average Rating: 4.0/5.0

Total Reviews: 11

Who Is the Company Behind SpheraCloud?

  • Seller: Sphera
  • Year Founded: 2016
  • HQ Location: Chicago, IL
  • Twitter: @SpheraSolutions
    4,011 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,477 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 64% Large, 18% Medium

What Are Recent G2 Reviews of SpheraCloud?

Sphera Environmental Accounting

SpheraCloud Environmental Accounting is a comprehensive software solution designed to help organizations manage and report their environmental data effectively. Tailored for industries with significant environmental footprints, it simplifies the complexities of emissions calculations and ensures compliance with environmental regulations. By providing a transparent and auditable system, the software enables companies to track and calculate their carbon footprint and other emissions with ease. Key Features and Functionality: - Data Collection and Management: Automates the gathering of environmental data, reducing manual errors and enhancing efficiency. - Emissions Calculation: Utilizes advanced algorithms to accurately compute emissions across various categories, including air, water, and waste. - Regulatory Compliance: Keeps organizations aligned with evolving environmental regulations by providing up-to-date reporting tools. - Real-Time Reporting: Offers dynamic dashboards and reports, enabling stakeholders to monitor environmental performance continuously. - Integration Capabilities: Seamlessly integrates with existing systems, facilitating a unified approach to environmental data management. Primary Value and Problem Solved: SpheraCloud Environmental Accounting addresses the challenges organizations face in managing vast amounts of environmental data and adhering to stringent regulations. By automating data collection and analysis, it minimizes the risk of non-compliance and associated penalties. The software's transparency and traceability build trust among stakeholders, while its real-time insights empower companies to make informed decisions, optimize asset performance, and advance their sustainability goals.

Who Is the Company Behind Sphera Environmental Accounting?

  • Seller: Sphera
  • Year Founded: 2016
  • HQ Location: Chicago, IL
  • Twitter: @SpheraSolutions
    4,011 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,477 employees on LinkedIn®

Spruce

Spruce is an end-to-end software for heat pump installers to remove admin, quote faster, and win more work. Capture an enquiry and send an estimate in minutes. Scan a property with LiDAR and run heat loss live on site, with a full system design ready in half the time. Draw pipe runs with sizing and pressure-drop calcs done as you go, then generate CAD-style drawing packs. Send polished proposals customers can sign on the spot, with MCS compliance built in at every step.

Who Is the Company Behind Spruce?

  • Seller: Spruce
  • Year Founded: 2023
  • HQ Location: London, GB
  • LinkedIn® Page: www.linkedin.com
    27 employees on LinkedIn®

Sumday

Market leading GHG accounting training, software and support for your company and every single business in your supply chain.

Who Is the Company Behind Sumday?

  • Seller: Sumday
  • Year Founded: 2023
  • HQ Location: Burnie, AU
  • Twitter: @sumday_io
    10 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    23 employees on LinkedIn®
Lauren Worth
LW
Researched and written by Lauren Worth
Updated October 3, 2024