# 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:** 131

### Category Stats (May 2026)
- **Average Rating**: 4.63/5 (↑0.01 vs Apr 2026)
- **New Reviews This Quarter**: 21
- **Buyer Segments**: Mid-Market 42% │ Enterprise 38% │ Small-Business 21%
- **Top Trending Product**: CorityOne (+0.095)
*Last updated: May 18, 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
- 131+ 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%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=09b4b1ff0f2c743322f9964265014514e3b271a90d44b24e904ccdcddb9f4605&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. [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:** 2,128

**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 (5,286 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/732400/ (3,266 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)

### 2. [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:** 4.5/5.0
  **Total Reviews:** 162

**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_ (78 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/osapiens/ (571 employees on LinkedIn®)

**Who Uses This Product?**
  - **Top Industries:** Hospital & Health Care, Consumer Goods
  - **Company Size:** 57% Enterprise, 25% 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)

### 3. [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/ (20 employees on LinkedIn®)

**Who Uses This Product?**
  - **Company Size:** 78% Mid-Market, 22% Small-Business


#### What Are Coolset's Pros and Cons?

**Pros:**

- Customer Support (9 reviews)
- Ease of Use (6 reviews)
- Sustainability (5 reviews)
- Implementation Ease (4 reviews)
- Compliance Standards (3 reviews)

**Cons:**

- Complex Usability (2 reviews)
- Complexity (1 reviews)
- Complex UI (1 reviews)
- Difficult Learning (1 reviews)
- Frequent Updates (1 reviews)


    ## 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 Health and Safety Software](https://www.g2.com/categories/environmental-health-and-safety)
    - [Environmental, Social, and Governance (ESG) Reporting Software](https://www.g2.com/categories/environmental-social-and-governance-esg-reporting)