Carbon accounting purpose built for sustainability experts
Use the carbon accounting platform trusted by sustainability consultants worldwide to create better client outcomes.







Check out our product demo
Watch Avarni in action as our co-founder Misha uses Avarni to convert 100,000 rows of spend into Scope 3 emissions in 15 minutes.
The efficiency of software with the flexibility of spreadsheets
Avarni’s software was built with sustainability consultant’s needs in mind — with transparency, flexibility, and audit-ability a top priority.
Automate client emissions calculations
Automatically map emission factors across millions of rows of business spend and activity data to calculate Scope 1-3 emissions.


Access thousands of up-to-date emission factors
Efficiently match your data to Scope 1, 2, and 3 emission factors from the global databases you already use.
Create credible net-zero targets with forecasting tools
Guide your clients through their carbon reduction journey with dynamic scenario analysis and actionable plans tailored to their net-zero goals.


Brand Avarni with your firm’s colours and logo
Build trust and deliver a personalised, immersive experience that aligns with your consultancy’s brand identity.
See why Avarni is the go-to solution for experts
Watch our Carbon Accounting Expert Series, featuring Michael Cox, APAC Director, Sustainability Consulting at Schneider Electric Sustainability Business.
Our results speak for themselves
$473 billion
55 million
Over 311,000

Hear why experts love Avarni
Learn how Avarni elevates your in-house carbon reporting and compliance.
Frequently Asked Questions
If you don’t see your question listed, bring it to the demo. We're always happy to answer your queries.
Can I use Avarni alongside spreadsheets?
Avarni is designed to enhance your existing sustainability consulting practices, not replace them. With the ability to export all results and reports directly to Excel, you can seamlessly incorporate Avarni's outputs into your existing manual workflows.
Is my client data secure with Avarni?
Yes — Avarni handles some of your client’s most sensitive data, so we operate with the strictest security practices. We are SOC 2 complaint and you always own any data loaded onto Avarni, and can remove it whenever you like. For more info, check our Security page.
Can I see emission factors used by Avarni?
Yes—without this capability, Avarni would be useless for audit purposes. All emission factor coefficients, details, and source links are visible in Avarni calculations.
How much does Avarni cost?
Because you already know carbon accounting, we don’t have to provide much support to you (although we will be there when you do need us). This means that we can provide you with a discounted rate per client compared to our regular pricing. Contact us to get a custom quote.
Have more questions?
Visit our full FAQ page for more frequently asked questions.