We're on a mission to make carbon intelligence accessible to every organisation.
Founded in the UK, built for the world. We believe that understanding your carbon footprint should be simple, rigorous, and actionable.
Born from frustration.
Built with purpose.
Numo was founded in 2026 in the United Kingdom by a team of sustainability professionals, engineers, and data scientists who shared a common frustration: carbon accounting was unnecessarily complex, fragmented, and inaccessible to most organisations. As a carbon accounting company, we saw first-hand how outdated tools and manual processes were holding back real climate progress.
Enterprise sustainability teams were drowning in spreadsheets, chasing suppliers for data, and spending months compiling reports that were outdated by the time they were finished. Small and mid-sized organisations were locked out entirely, unable to afford the consultants and tooling required to even get started. The carbon accounting industry needed a new approach that prioritised speed, accuracy, and accessibility in equal measure.
We set out to change that. Numo is a Carbon Intelligence Platform that combines AI-powered data collection, automated supplier engagement, and multi-framework compliance reporting into a single, intuitive product. Our mission is to simplify carbon accounting for enterprise and make it accessible to organisations of every size and sector. Every paid account includes free carbon reduction plans generated by our AI, so organisations receive actionable recommendations from day one.
How we build carbon accounting software
We believe the best carbon intelligence company is one that removes barriers rather than creating them. Every product decision starts with a simple question: does this make carbon accounting easier?
Accessible by design
Most carbon accounting platforms are built for consultants and specialists. We design for sustainability managers, finance teams, and operations leads who need clear answers without a steep learning curve. Our conversational onboarding guides new users through setup in minutes, not weeks, so every organisation can start measuring emissions immediately.
AI that actually helps
We use artificial intelligence where it genuinely reduces effort: extracting data from invoices and utility bills, estimating emissions from natural-language inputs, and generating carbon reduction plans prioritised by impact and feasibility. Our AI models are trained on real-world carbon accounting data, ensuring that every suggestion is grounded in practical experience.
Supplier engagement, simplified
Scope 3 emissions often account for over eighty per cent of a company's carbon footprint, yet collecting supplier data remains the single biggest bottleneck in carbon accounting. Our Scope 3 supplier outreach feature automates the entire funnel: suppliers receive free accounts, see only the fields relevant to their industry, and submit data through a guided interface that requires no carbon accounting expertise.
Framework-ready from the start
Compliance requirements are multiplying rapidly. Numo is built on the GHG Protocol foundation that underlies every major framework — so a single data set extends naturally as we layer in CSRD, SBTi and CDP-specific exports. Audit-ready Carbon Reduction Plan exports today, no consultants required.
What drives us every day
Three principles that guide every decision we make, from product design to customer relationships.
Clarity over complexity
Carbon accounting is complex enough. Our job is to simplify the hard stuff, not add to it. Every feature we build must make things clearer, not more complicated. If it takes a manual to understand, we haven't finished designing it.
Science first
Rigorous methodology and verified data underpin everything we do. We use peer-reviewed emission factors, align with the GHG Protocol, and ensure every calculation is transparent and auditable. Good intentions are not enough — accuracy matters.
Customer obsessed
Your success is our success. We measure ourselves by the outcomes our customers achieve — reports submitted, targets hit, audits passed. We listen closely, respond quickly, and build what matters most to the people using our platform every day.
From idea to impact
A brief history of Numo and the milestones that have shaped our path so far.
Founded & launched
Numo is incorporated in London by NOISSIME LTD. The platform launches with full Scope 1, 2 and 3 tracking, AI-powered input, supplier automation, and audit-ready Carbon Reduction Plan exports — built UK-first on the GHG Protocol foundation.
Why organisations choose this carbon accounting company
There are many carbon accounting platforms on the market, but most follow the same playbook: complex dashboards, consultant-dependent onboarding, and pricing that excludes smaller organisations. We built Numo to be fundamentally different. Our carbon intelligence company philosophy centres on removing friction at every step, from initial data collection through to final compliance reporting.
Our product philosophy is rooted in a simple principle: carbon accounting should not be daunting. We invest heavily in conversational interfaces, AI-driven automation, and guided workflows that let any team member contribute meaningful data without specialist training. When organisations sign up for Numo, they receive free carbon reduction plans alongside their emission measurements, turning insight into action from the very first session.
We also believe that accurate Scope 3 data is the key to credible decarbonisation. That is why we built our Scope 3 supplier outreach system as a core platform feature, not an add-on. Suppliers receive their own free accounts and see only the data fields relevant to their industry, which means higher response rates, better data quality, and less administrative burden for everyone involved. As a carbon accounting company, our goal is to make the entire value chain visible, measurable, and improvable.