Carbon accounting, built for growing businesses
Know your carbon footprint. Prove it to the world.
Arenius gives SMEs the tools to measure, manage, and report emissions automatically. From Scope 1 to Scope 3, in hours, not months.
Arenius gives SMEs the tools to measure, manage, and report emissions automatically. From Scope 1 to Scope 3, in hours, not months.
Built for companies that need reliable carbon data without a dedicated sustainability team.
Connect your data sources once (invoices, energy bills, fleet data) and Arenius calculates your footprint automatically, every month.
Learn more →Generate GHG Protocol, CSRD, and ISO 14064-compliant reports in one click. Audit-ready documentation, every quarter.
Learn more →Full value-chain visibility. Track direct emissions, purchased energy, and supply chain activities across all three scopes.
Learn more →Understand the financial impact of your emissions. Model carbon tax exposure, offset costs, and reduction ROI in real time.
Learn more →Link your accounting software, utility accounts, and supplier data. Our 200+ integrations handle the heavy lifting, no manual data entry.
Our engine applies the latest emission factors to your activity data, mapping every transaction to the right GHG category automatically.
Share verified reports with customers, investors, and regulators. Use our reduction planner to hit your net-zero targets on schedule.
Every emission source, cost, and trend in a single view. Designed for clarity, not complexity.
Serious carbon accounting used to require a team. Arenius puts the same rigour at your fingertips, at a fraction of the cost and time.
Start free, upgrade when you're ready. Every plan is all-inclusive with no hidden fees, and you can cancel any time.
We had no idea how to start measuring our emissions. Arenius had us reporting within a week, and our largest client renewed because of it.
No sustainability consultant required. Set up in hours, not months.
Free 14-day trial · No credit card required · Cancel anytime