Stop fixing spreadsheets. 3x your carbon accounting practice.

The world needs your expertise, not your Excel skills. Join leading consulting firms that have standardized their carbon accounting in Avarni and scaled into long-term advisory work.
Carbon accounting software - Avarni

Stop fixing spreadsheets. 3x your carbon accounting practice.

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Deliver AI-powered carbon inventories with clear evidence and transparent processes
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Minimize data entry errors while maintaining spreadsheet-like flexibility
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Create long-term decarbonization plans with value chain insights and supplier collaboration
Carbon accounting software - Avarni

Why consultants love Avarni

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Built around your methodology
Your proven carbon accounting methods, powered by automation. Avarni adapts to your process, not the other way around.
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Turn projects into multi-year programs
Standardize carbon calculations so you can focus on what clients really value: scenario planning, reduction targets, and strategic guidance on supplier tracking.
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Scale without competition
We stay in our lane: pure technology. Unlike other platforms, we'll never compete for advisory work. Your clients remain your clients.
“I used Avarni to do the initial emission factor database matching. That saved hours of work, which is sometimes a very manual process, matching it line by line in the spreadsheet.”
Lloyd Lee
Lloyd Lee
Schneider Electric Sustainability Business

Why enterprises love working with consultants using Avarni

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Eliminate audit anxiety
Every calculation is traceable and verification-ready. No more scrambling to explain spreadsheet methods to auditors.
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Get numbers you can trust
Take control of your emissions data with precise factor mapping and automated calculations that eliminate human error.
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See every detail, instantly
Drill down into any number – from high-level summaries to individual emission factors. Full transparency that keeps regulators happy.
“Avarni’s software was easy to use and is supporting us to reach our target of net zero in our supply chain by 2040.”
Kristina Jackson
Kristina Jackson
City of London Corporation

Carbon accounting software with a PhD

US$302bn
worth of data analyzed
487m+
tonnes of CO2e identified
311,000
suppliers analyzed across
hundreds of industries

Solve carbon accounting challenges

Ready to streamline how you calculate emissions for clients?

Discover how Avarni has helped hundreds of consultants, with thousands of clients, streamline repetitive, error-prone spreadsheet processes.
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Try Avarni for FREE

Get started with example data sets in just 10 minutes and try Avarni for 14 days, no credit card required.
As featured in:
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For those of us that have grown up loving a spreadsheet, I'm very pleased that finally there are solutions in this space that are coming to ground, like Avarni’s solution, that is giving us the possibility of managing very large data sets and minimizing that level of consultant intervention.
Michael Cox
Michael Cox
APAC Director, Sustainability Consulting
Schneider Electric Sustainability Business
I did a new exercise using Avarni to do the initial emission factor database matching. That saved hours of work, which is sometimes a very manual process, matching it line by line in the spreadsheet.
Lloyd Lee
Lloyd Lee
Sustainability (Climate) Strategy
Schneider Electric Sustainability Business
Avarni’s automation software enabled us to easily assemble data that had been previously distributed across multiple spreadsheets and sources, and facilitated a robust analysis of our Scope 1, 2 and 3 emissions.
headshot: Robert Selby
Robert Selby
Chief Technical & Risk Management
Morrison Hershfield
Avarni’s software was easy to use and is supporting us to reach our target of net zero in our supply chain by 2040. Avarni really understood our goal and worked with us to achieve more accurate data from our supply chain. We look forward to building on this partnership.
avatar: City of London
City of London Corporation
Avarni’s extensive technical knowledge of the greenhouse gas emissions and reductions space and their technology platform provided excellent insight into our current emissions profile so that we can set meaningful reduction targets for the future.
headshot: Robert Selby
Robert Selby
Chief Technical & Risk Management at Morrison Hershfield
Avarni enables us to greatly enhance the speed and quality at which we deliver greenhouse gas emissions insights to our customers. We are excited to work closely with them as a key partner in expanding Earth Finance's Scope 3 decarbonization solution set.
headshot: Garrett Kephart
Garrett Kephart
President
Earth Finance, Inc.
Because of Avarni, we have been able to get a thorough understanding of our impact areas and emissions, not only in our own operations, but also in our supply chain. They have provided cutting-edge and helped Underworks set solid 2030 carbon reduction goals.
headshot: Annelou Ringers
Annelou Ringers
Sustainability Manager
Underworks
Avarni's software is easy to use and very intuitive, upload of data is simple and straightforward, results for Scope 1, 2 and 3 emissions are shown in a very clear form - and they are always ready to help, have quick meetings, chats and receive and apply feedback.
headshot: Marina Lunardi
Marina Lunardi
Life-cycle Strategy Lead
5B

Learn how you can 3x your practice revenue with Avarni’s carbon accounting software today

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