Building the financial infrastructure for a net-zero economy
We started TerraLedger because we believed sustainability reporting should be as rigorous — and as simple — as financial reporting.
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Our story
TerraLedgerwas founded in 2021 by Daniel Park and Marcus Reid after watching companies spend months in spreadsheets trying to meet a growing tide of mandatory disclosure requirements — and still producing reports their boards couldn't rely on. The EU's Corporate Sustainability Reporting Directive (CSRD) was the catalyst: 50,000+ companies would need auditable, board-grade emissions data by 2025, and the tooling simply didn't exist.
We built TerraLedgerto be the emissions ledger at the heart of every company's sustainability function — automatically ingesting data from ERPs, utilities, and supply chains, applying GHG Protocol-aligned calculations, and generating CSRD- and TCFD-ready reports fit for external assurance. Today, over 480 sustainability teams trust TerraLedger to power their net-zero journey.
Meet the team
Daniel Park
Co-founder & CEO
Former climate-risk lead at a global reinsurer. Built TerraLedger after watching disclosure teams drown in spreadsheets.
Marcus Reid
Co-founder & CTO
Ex-data-infrastructure engineer. Designed the emissions ledger and the calculation-transparency layer.
Amara Osei
Head of Customer Success
Ten years guiding enterprise sustainability teams through CSRD and CDP reporting cycles.
Léa Dubois
Head of Partnerships
Builds the integration and registry network. Previously led ecosystem partnerships at an ESG data provider.
Jonas Weber
Head of Climate Science
Carbon-accounting methodologist. Owns emission-factor sourcing and GHG Protocol alignment.
Yuki Tanaka
Head of Engineering
Leads the product engineering team. Shipped the real-time Sankey visualisations and CSRD report generator.
What we believe
Scientific rigour
Every calculation follows peer-reviewed methodology. Our science team publishes our methodologies openly so they can be scrutinised.
Radical transparency
We are open about our methodology, our data, and our limitations. No greenwashing, ever.
Built for scale
Designed for the largest supply chains on earth — thousands of suppliers, millions of data points, one source of truth.