Carbon accounting software trusted by leading sustainability consulting businesses

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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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Win and retain more business
Present valuable insights about emissions-related risks & opportunities, moving beyond competing on cost.
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Transition to recurring revenue
Shift from manual, one-off carbon accounting to high-value, multi-year advisory engagements with enterprises and their suppliers.
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Expand your business
Leverage a partner-centric model that prioritizes partnerships, with Avarni focusing exclusively on technology without offering competing advisory or consulting services.

Why enterprises love working with Avarni's partners

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Minimize assurance risks
Reduce the risk of assurance findings by avoiding data and methodology errors common in spreadsheet-generated inventories.
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Increase precision and accuracy
Gain control over the precise application of emission factors to enhance the accuracy of GHG emissions calculations.
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Ensure transparency
Drill down to verify every GHG calculation, accounting method, adjustment, and emission factor source.

Carbon accounting software backed by data and high usage

US$1.58tn
worth of data analyzed
487m+
tonnes of CO2e identified
311,000
suppliers analyzed across
hundreds of industries

Carbon accounting resources and insights

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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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 at 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 at 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 at 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 at 5B

Learn how Avarni’s AI-powered carbon accounting software can help you deliver accurate carbon inventories

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