Top 17 carbon accounting software tools in 2025

As businesses ramp up their decarbonization strategies for 2025, choosing the right carbon accounting software is more critical than ever. Here’s a quick snapshot of all the tools we’ll be covering in this article:

• Coolset
• Watershed
• Persefoni
• Sinai Technologies
• Normative
• SmartTrackers
• Plan A
• Emitwise
• Sweep
• Salesforce Net Zero Cloud
• Microsoft Cloud for Sustainability
• Vaayu
• Greenly
• Sustain Life
• Pledge
• Sphera
• Arbor

These digital platforms measure, analyze, and manage a company's greenhouse gas emissions, and guide them in designing effective decarbonization strategies.

In this article, we list the top 17 carbon accounting software tools in 2025, shedding light on their key features, the clients they cater to, and their pricing models. 

Each of these tools comes with its unique capabilities, from detailed emissions analysis to automated, compliant reporting, facilitating businesses on their path to environmental sustainability.

Whether you're a start-up or an established enterprise, this guide will aid in your quest for the best carbon accounting software tool in 2025. Let's dive in to understand what each has to offer, but first…

What is carbon accounting?

Carbon accounting, also known as greenhouse gas accounting, is the process of calculating the total amount of carbon dioxide (CO2) emitted by your company. Like financial accounting, it allows you to quantify the impact of your business activities, but instead of financial impact, it focuses on environmental impact.

By translating your business’s environmental impact into numbers, you can bring more accountability to your sustainability efforts. This gives stakeholders like customers, investors, and employees something tangible to support and evaluate your progress. It also makes it easier to identify reduction opportunities and comply with evolving regulatory requirements.

What is carbon accounting software and why would you use it?

Carbon accounting software is a digital solution designed to measure, analyze, and manage greenhouse gas emissions that a company produces through its operations. These emissions are categorized into: 

• Scope 1, direct emissions; 
• Scope 2, energy-related indirect emissions; and 
• Scope 3, other indirect emissions from sources like supply chains, employee commuting, or business travel.

As compliance with global regulatory standards such as the EU CSRD (Corporate Sustainability Reporting Directive) and TCFD (Task Force on Climate-related Financial Disclosures) becomes crucial, carbon accounting software helps in transparent and efficient reporting. 

In addition to facilitating compliance, these platforms can enhance a company's ability to attract talent seeking environmentally responsible employers. 

Engaging stakeholders - from suppliers and partners to customers - is another key benefit, allowing them to better understand a company's commitment to sustainability and, in turn, fostering stronger relationships.

The importance of picking the right carbon accounting software

Choosing the right carbon accounting software can be a decisive factor in an organization's sustainability journey. This choice extends beyond merely selecting a tool for tracking emissions – it's about finding a comprehensive solution that aligns with your company's environmental commitment and business objectives.

Without the correct software, businesses risk non-compliance, potential fines, and a damaged reputation.

The right carbon accounting software can also support strategic decision making by providing valuable insights into a company's carbon intensity. It will highlight areas for improvement and assist in creating effective decarbonization strategies, fostering a proactive approach to carbon reduction. 

These insights can be a powerful driver of innovation and trigger new, future-proof approaches to conducting business. Without further ado, here’s our list of the best carbon accounting software of 2025.

Using carbon accounting software or an internal solution: what’s better?

While the growing adoption of carbon accounting is a great step towards tackling the climate crisis, measuring carbon emissions is a complex process.

Using standardized frameworks like the Greenhouse Gas (GHG) Protocol or Carbon Disclosure Project (CDP) can give you the tools to measure these emissions effectively. This ensures your efforts align with the latest industry standards for accuracy and comparability.

However, for smaller companies without a well-resourced sustainability team, tackling carbon accounting in house can be a time-consuming and expensive process. Plus, relying on old-school spreadsheets is also error prone.

Carbon accounting software is designed to streamline, digitize, and automate the process. It turns a somewhat overwhelming task into something manageable – allowing you to focus your efforts on reducing emissions, with peace of mind that your accounting is accurate.

How to choose the right carbon accounting software?

When selecting carbon accounting software for your business, there are several factors to consider:

• Your organization's specific needs and goals: Assess your business’s specific needs and goals related to carbon tracking. What’s the scope of your carbon footprint assessment? Are you aiming for compliance or just tracking progress? 
• Measurement and monitoring capabilities: Look for software that can accurately measure and monitor emissions relevant to your industry or operations. 
• Reporting capabilities: Check what the software offers in terms of reporting capabilities. Look for something customizable that facilitates reporting in formats for both voluntary and mandatory reporting.
• Data integration features: Assess the software’s ability to integrate with your existing data management systems like your supply chain management software. Make sure it can handle data from direct measurements and estimations to ensure you get a complete overview of your carbon footprint.
• Ease of use: Consider the tool’s user interface and user experience.
• Alignment with recognized standards: Verify that the software adheres to recognized carbon accounting standards like the Greenhouse Gas Protocol or ISO 14064. Consider if the software itself is certified or recognized by reputable environmental orgaanizations as this can add a layer of credibility to your reporting.
• Scalability and flexibility: Choose software that can grow with your business. Can it adapt to increasing volumes of data, new emissions sources, and evolving regulatory requirements?
• Cost: Make sure the pricing structure fits within your budget.
• Security and data privacy: Ensure the software you choose has strong security measures to protect sensitive data. Confirm that it complies with data privacy laws in the countries you operate.

The top carbon accounting software tools in 2025

1. Coolset

Coolset is a powerful carbon accounting and reporting platform built for mid-market companies (250–5,000 employees) looking to take control of their emissions data and drive real sustainability progress. It helps businesses measure, analyze, reduce, and remove emissions across Scope 1, 2, and 3—using a TÜV-certified methodology for maximum accuracy and credibility.

It also helps companies streamline ESG reporting and get compliant with sustainability frameworks such as CSRD, EU Taxonomy or VSME.

Website

https://www.coolset.com/

Location

Amsterdam, Netherlands

Clients

Mid-market companies and enterprises (250-5000 employees)

Company resources required

Financial analyst or sustainability associate

Key features

• Scope 1, 2 and 3 analysis
• TÜV-certified methodology
• Carbon reduction recommendations
• Automated ESG reporting
• Sustainable alternatives marketplace
• Integrated carbon offsets and removals
• Emission deep-dives & hotspot analysis
• CSRD, EU Taxonomy, VSME compliance

Pricing

€4.000 – €30.000, zero implementation fees

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2. Watershed

Watershed is an enterprise climate platform designed to support large companies in measuring, reporting, and reducing their carbon emissions. It helps businesses to map out their carbon footprint, prepare reports compliant with global regulatory standards, and set targets and track progress to reduce emissions.

It also ensures emissions data is auditable to power business value creation, regulatory compliance, and global climate impact.

Website

https://watershed.com/

Location

San Francisco, California, United States

Clients

The world’s largest companies

Company resources required

Developer resources and climate leaders

Key features:

• Carbon footprint measurements
• Tailored reporting for financial institutions
• CDP submission support
• Lifecycle analysis for consumer brands
• Carbon removal and avoidance

Pricing

€35.000 – €250.000, excluding implementation fees

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3. Persefoni

Persefoni is an AI-powered carbon measurement and reporting platform that helps businesses to measure, report, and decarbonize. Ideal for large enterprises and financial institutions, it offers assurance-grade emissions reporting for every major climate disclosure regulation. It also helps with net-zero target setting and other tools for advanced decarbonization.

Website

https://persefoni.com/

Location

Tempe, Arizona, United States

Clients

The world’s largest enterprises and financial institutions

Company resources required

Developer resources and climate leaders

Key features

• Company footprint measurements
• Financed emissions assessment
• Climate policy advisory
• SEC disclosure reporting
• Management consulting partners such as Bain & Co.

Pricing

€45.000 – €300.000, excluding implementation fees

4. Sinai Technologies

SINAI is a decarbonization platform that enables companies to go beyond carbon accounting and take action with cost-effective carbon reduction strategies. They provide enterprise software to measure, analyze, price, and reduce emissions, using science-based targets.

The tool includes functionalities like calculating scope 1-3 emissions, forecasting future emissions, identifying reduction opportunities, and carbon pricing.

Website

https://www.sinai.com/

Location

San Francisco, California, USA

Clients

Enterprises in heavy industries

Company resources required

Sustainability leaders, project managers

Key features

• Scope 1, 2 and 3 measurements
• Science-based targets alignment
• Internal carbon pricing
• Strategic advisory on decarbonization pathways
• Advanced forecasting capabilities

Pricing

€25.000 – €200.000, excluding implementation fees

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5. Normative

Normative helps industrial businesses measure exactly how much emissions they generate. Like in traditional accounting, Normative’s carbon accounting combines hard data and rigorous calculations to deliver reliable results. Normative’s Climate Strategists help to identify emissions reduction opportunities, minimize climate risk, and find opportunities for growth in a net-zero economy.

The company is all about making carbon emissions visible for everyone, enabling businesses to see emissions, plan reductions, and achieve net zero.

Website

https://normative.io/

Location

Stockholm, Sweden

Clients

Industrial technology enterprises

Company resources required

Sustainability leaders, data analysts

Key features

• Carbon footprinting
• Sustainability marketing material
• Climate policy expertise
• Custom advisory and reporting
• SBTi alignment

Pricing

€60.000 – €180.000, excluding implementation fees

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6. SmartTrackers

SmartTrackers is a multifunctional sustainability platform that helps businesses to measure and assess sustainability, safety, and CO2. It gives organizations insight into their environmental impact, simplifies accountability, and ensures they meet best practices, standards, and regulations. The tool focuses on customizability and manual entries to ensure maximum flexibility in data inputs.

Website

https://www.smarttrackers.nl/

Location

Amersfoort, Netherlands

Clients

Enterprises

Company resources required

Sustainability managers, manual data entry

Key features

• Scope 1 & 2 footprint measurement
• Limited Scope 3 assessment
• Safety scoring and assessments
• Manual emission factors and data entry
• Follows CO2-prestatieladder

Pricing

€1.900 – €28.500, excluding implementation fees

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7. Plan A

Plan A is a corporate decarbonization and ESG optimization software solutions provider. The German SaaS platform combines technology and the latest scientific standards and methodologies to align organizations on their sustainability ambitions. Business's can carry out their entire net zero journey within a single platform, from collecting and processing data to reporting and reducing emissions.

Website

https://plana.earth/

Location

Berlin, Germany

Clients

Enterprises

Company resources required

Sustainability managers

Key features

• ESG reporting
• Scope 1-3 measurements
• Reduction target-setting
• Data consulting services

Pricing

€3.400 – €70.000, excluding implementation fees

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8. Emitwise

Emitwise provides a carbon management platform to help enterprises measure, track, report, and reduce their carbon footprint, especially complex Scope 3 emissions. From using machine learning to automate data processing to giving you data to make smarter procurement decisions, Emitwise prides itself on doing the heavy lifting for businesses. Their ultimate mission is to help businesses respond to the climate emergency by enabling manufacturers to drive their own carbon agenda.

Website

https://emitwise.com/

Location

London, United Kingdom

Clients

Companies with complex supply chains

Company resources required

Quality managers, sustainability leaders

Key features

• Scope 3 emission management 
• Supply chain engagement & management
• Sustainable procurement
• CDP and SBTi alignment
• Reduction target setting

Pricing

€40.000 – €120.000, excluding implementation fees

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9. Sweep

Sweep's carbon and ESG data platform helps large enterprises track, disclose, and act on their carbon emissions. The data-driven platform makes it easy to measure emissions, take action to reduce your carbon footprint, and collaborate with supply chain partners to drive measurable change.

Website

https://www.sweep.net/

Location

Paris, France

Clients

Large enterprises and financial institutions

Company resources required

Sustainability leaders, development teams

Key features

• Scope 1-3 measurements
• Emission dependencies through org trees
• Define science-based targets
• Simulate reduction pathways
• Industry benchmarks

Pricing

€35.000 – €200.000, excluding implementation fees

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10. Salesforce Net Zero Cloud

Salesforce's Net Zero Cloud helps businesses achieve carbon neutrality. It provides tools for tracking and analyzing carbon emissions across all scopes, facilitating the creation of a climate action plan. It's all about helping businesses to become carbon-neutral faster, offering practical steps to formulate a climate action plan and reduce emissions.

Website

‍https://www.salesforce.com/eu/products/net-zero-cloud/overview/

Location

San Francisco, California, USA

Clients

Large enterprises, Salesforce customers

Company resources required

Salesforce consultants or Force developers

Key features

• Travel-related emissions
• Energy-related emissions
• Full ERP integration
• Science-based targets
• Emissions forecasting
• Supplier engagement
• Industry benchmarks

Pricing

€40.000 – €250.000, excluding implementation fees

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11. Microsoft Cloud for Sustainability

Microsoft Cloud for Sustainability centralizes data for improved reporting, facilitates the creation of sustainable IT infrastructure, and reduces the environmental footprint of operations. Additionally, it promotes accountable value chains and simplifies emissions tracking through automated data collection and predefined calculation models. The platform is all about empowering businesses to accelerate sustainability progress and drive business growth.

Website

‍https://www.microsoft.com/en-us/sustainability/cloud 

Location

Redmond, Washington, United States

Clients

Microsoft Azure enterprise customers

Company resources required

Sustainability managers, software developers

Key features

• Scope 1, 2 and (limited) Scope 3 footprint
• Deep Microsoft suite integration
• Sustainable IT infrastructure
• Value chain engagement module
• Emissions monitoring

Pricing

From €4.000 per tenant

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12. Vaayu

Vaayu provides automated carbon management software for retailers to measure, monitor and reduce their carbon footprint in real time. It focuses on product footprints and consumer-facing products to unlock commercial value from sustainability. With the help of AI and machine learning, the platform automates impact calculations. It also offers granular insights to aid decision-making and ensure regulatory compliance.

Website

https://www.vaayu.tech/

Location

Berlin, Germany

Clients

Retailers across all business sizes

Company resources required

Sustainability managers, developers

Key features

• Product footprints & LCAs
• Climate insights at checkout
• Delivery-related emissions
• Value chain emissions
• API integrations with shopping platforms

Pricing

€18.000 – €100.000, excluding implementation fees 

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13. Greenly

Greenly is a carbon accounting platform that aims to make carbon assessment and management simple. It enables companies to measure, monitor, reduce, and offset their carbon footprints based on international carbon accounting standards such as the GHG Protocol. It also helps businesses to engage their ecosystem, from employees to suppliers, throughout their climate journey.

Website

https://greenly.earth/

Location

Paris, France

Clients

Small businesses to large enterprises

Company resources required

Sustainability manager

Key features

• Scope 1, 2 and 3 footprint
• Supplier involvement
• Consulting and implementation on demand
• Custom action plans
• Optional video production

Pricing

€3.000 – €80.000, excluding implementation fees and add-ons

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14. Sustain Life

Sustain Life provides sustainability software for businesses to measure, manage, and report carbon emissions and make business decisions with the environment in mind. It works through consulting and accounting partners to serve global customers. From offering actionable insights to building reduction plans and streamlining reporting, it helps businesses on their path to net-zero.

Website

https://www.sustain.life/

Location

New York, NY, USA

Clients

Small businesses to large enterprises

Company resources required

Sustainability manager, developer capacity

Key features

• Scope 1, 2 and 3 footprint
• Private market expertise
• Consulting and client management services
• Open platform for partnerships
• SBTi target setting

Pricing

€5.000 – €60.000, excluding implementation fees 

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15. Pledge

Pledge is a big believer in the power of technology in the fight against climate change. It provides tools and infrastructure to automate the delivery of climate solutions such as accredited footprint measurement, reporting, and offsetting into customer journeys. Pledge focuses specifically and exclusively on transportation and logistics companies to calculate emissions from freight and other logistics operations.

Website

https://www.pledge.io/

Location

London, England

Clients

Transport and logistics companies

Company resources required

Sustainability managers, logistics managers

Key features

• Sea, road, air, rail and inland waterways routing
• GLEC, GHG & ISO 14083 reporting
• Offsetting marketplace
• Custom fuel factors and fuel mixes

Pricing

€600 – €20.000, volume-based pricing

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16. Sphera

Sphera is an ESG performance and risk management software that provides tools for emissions management that emphasize safety and liability reduction. This helps build trust and a positive environmental reputation. Sphera centralizes reporting, data analytics, and management tools for efficient collaboration on sustainability initiatives. It is part of The Blackstone Group, benefiting from strategic resources and its acquisition of thinkstep in 2019.

Website

https://www.sphera.com 

Location

Headquartered in the US

Clients

Enterprises

Company resources required

Sustainability managers

Key features

• ESG reporting
• Scope 1-3 emissions tracking
• Integrated risk management
• Comprehensive compliance tools

Pricing

Varies, custom quotes available based on company needs.

17. Arbor

Arbor brings a fresh perspective to carbon accounting with its product-first approach, simple pricing strategy and its focus on delivering an intuitive user experience. 

The company boasts that unlike “traditional carbon management methods” that use global averages and proxy data, it utilizes regional data points specific to a company’s supply chain. As a result, the company suggests that its carbon management platform focuses on accuracy and efficiency, calculating carbon emissions in minutes.

Website

https://www.arbor.eco/

Location

Calgary, Canada

Clients

Clients with physical products or assets in industries across apparel, construction, finance, electronics, and agriculture.

Company resources required

Quality managers, sustainability leaders

Key features

• Scope 1, 2, and 3 emissions measurement & tracking
• Automated product carbon footprint calculations
• Compliant reporting (with CSRD, CBAM & more)
• Easy data collection with automated integration
• User-friendly interface with clear visualization tools
• Expert-led support throughout your climate strategy

Pricing

From $200 per product 

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Frequently asked questions about carbon accounting software

Let’s take a quick look at some of the most frequently asked questions when it comes to carbon accounting tools.

How does carbon accounting relate to CSRD?

The CSRD sets stringent requirements for sustainability disclosures within the EU. Accurate carbon accounting is fundamental here as it provides the critical emissions data that organizations need to meet CSRD requirements. This is in turn essential to demonstrate a company’s environmental performance transparently.

How does carbon accounting relate to EU Taxonomy?

The EU Taxonomy is a classification system identifying which business activities are environmentally friendly, helping investors and companies support the EU’s climate goals. 

Carbon accounting supplies an essential data point that contributes to a company’s resulting score which showcases how companies' economic activities stack up against specific criteria for sustainability, including their GHG emissions. To understand the framework in greater detail, visit this explainer on the EU Taxonomy and how it will work in practice.

Is carbon accounting the same as carbon management?

While closely related, carbon accounting and carbon management serve different purposes. Carbon accounting focuses on the measurement and reporting of greenhouse gas emissions, giving you a clear picture of your organization’s carbon footprint. In contrast, carbon management uses this data to develop targeted strategies aimed at reducing emissions over time. 

In other words, accounting answers “what” your emissions are, while management tackles “how” to reduce them.

How to choose carbon accounting software?

Choosing carbon accounting software involves considering several factors. Firstly, assess your organization's specific needs and goals related to carbon tracking. Look for software that can measure and monitor emissions relevant to your industry or operations. 

Consider the software's reporting capabilities, data integration features, and ease of use. Additionally, check if the software aligns with recognized carbon accounting standards like the Greenhouse Gas Protocol or ISO 14064.

What is the most widely used carbon accounting method?

The most widely used carbon accounting method is the Greenhouse Gas Protocol (GHG Protocol). It is a globally accepted standard developed by the World Resources Institute (WRI) and the World Business Council for Sustainable Development (WBCSD). 

The GHG Protocol categorizes emissions into three scopes:

• Scope 1 (direct emissions from owned or controlled sources)
• Scope 2 (indirect emissions from purchased electricity, heat, or steam) 
• Scope 3 (indirect emissions from the value chain, such as supplier activities and product use)

Is carbon accounting accurate?

Carbon accounting can be accurate when based on reliable data and well-established methodologies such as the GHG Protocol. 

The accuracy depends on the quality of data collected, the comprehensiveness of the methodology used, and the implementation of robust tracking and reporting processes. Regular audits and verification can further enhance the accuracy of carbon accounting results.

Is carbon accounting the same as financial accounting?

Carbon accounting is not the same as financial accounting. Financial accounting focuses on tracking and reporting an organization's financial transactions and performance, including revenues, expenses, and profits. 

On the other hand, carbon accounting deals with measuring and managing an organization's greenhouse gas emissions and environmental impact, with the aim of understanding and reducing its carbon footprint.

What is the difference between carbon accounting and GHG accounting?

Carbon accounting and GHG accounting are often used interchangeably, but there is a subtle difference between the two.

Carbon accounting typically refers to the specific measurement and management of carbon dioxide (CO2) emissions, while GHG accounting covers a broader scope, including all greenhouse gas emissions like methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), and others.

What is the most successful carbon capture project?

One of the most notable and successful carbon capture projects is the "Sleipner Project" in Norway. Operated by Equinor (formerly Statoil), the Sleipner Project has been in operation since 1996. It involves capturing and storing approximately one million tons of CO2 annually from a natural gas field in the North Sea by injecting it into a deep saline aquifer.

What are the 2 best carbon sequestration methods?

Two prominent carbon sequestration methods are afforestation/reforestation and carbon capture and storage (CCS). Afforestation involves planting trees on land that was not previously forested, while reforestation focuses on replanting trees on areas that were previously deforested. 

CCS, as mentioned earlier, involves capturing CO2 emissions from industrial processes or power plants and permanently storing them in geological formations underground.

How do you collect data for carbon accounting?

Collecting data for carbon accounting typically involves gathering information on energy consumption, fuel usage, transportation, waste generation, and other activities that result in greenhouse gas emissions. 

Data can be collected through various means, such as utility bills, emission factors for fuels, activity data, and direct measurements using sensors or monitoring equipment. Get in touch with Coolset if you’d like to find out more.

How much does carbon accounting usually cost?

The cost of carbon accounting can vary depending on the scale of the organization and the complexity of its operations. 

Some carbon accounting software may have subscription-based pricing, while others may charge based on the number of emissions sources being tracked or the volume of data processed. Additionally, costs may include training, implementation, and, if desired, third-party verification expenses.

What about the future of carbon accounting?

The future of carbon accounting is likely to be increasingly important as the world shifts towards more sustainable practices and governments implement stricter regulations on carbon emissions. 

Advances in technology and data collection methods may lead to more accurate and automated carbon accounting processes. Integration of carbon accounting with broader sustainability metrics and reporting will also be a trend in the future.

What is a good example of carbon accounting?

An example of carbon accounting is a multinational company tracking its carbon emissions across various subsidiaries and operations worldwide. 

By using carbon accounting software like Coolset, the company can monitor emissions from its manufacturing plants, offices, transportation fleet, and supply chain. 

The data collected enables the company to identify emission hotspots, set reduction targets, and develop strategies to minimize its overall carbon footprint, contributing to its sustainability goals and corporate social responsibility initiatives.

Which carbon accounting software is best for your business

The best carbon accounting software for your business will streamline emission tracking and management. It should provide detailed Scope 1, 2, and 3 emission measurements and enable deep insights into your carbon footprint. 

A good example is Coolset, which offers granular breakdowns on emission hotspot categories, high impact vendors and single transactions, empowering informed decarbonization strategies.

The platform should integrate a comprehensive emission factor database and employ advanced automation for accurate and reliable measurements, ensuring GHG protocol compliance. It should also allow for proactive emission reduction planning, with features like a net zero strategy builder, emission deep-dives, automated reporting and progress tracking.

Certified carbon offset offerings and actionable reduction recommendations are key features to look for, allowing businesses to balance unavoidable emissions and move closer to their net zero goals. The software should also facilitate easy compliance with upcoming regulatory standards such as the EU CSRD via the European Sustainability Reporting Standards (ESRS).

Finally, consider the provider's commitment to long-term partnerships. The best software is backed by a team that’s ready to assist with setup and ongoing use, serving as a valuable partner in your upcoming sustainability journey.