Yayzy
Co-founder & CTO
Overview
Carbon footprint tracking through Open Banking — turning messy transaction data into actionable environmental insights. 'Fitbit for Carbon' — automatically calculates the CO2 impact of every purchase using proprietary ML.
The Challenge
Carbon footprinting was manual, inaccurate, and disconnected from daily life. Banking data is messy and hard to categorize. People wanted to act on climate but didn't know their personal impact — or how to reduce it.
The Solution
Built the entire platform from scratch — React Native mobile app, AWS backend, ML classification engine. Scaled from MVP to 31 countries with 2,500+ bank integrations in under 3 years. Then led the B2B pivot, architecting enterprise APIs that enabled partnerships with IBM and technical evaluation and enterprise pilots with Lloyds, Mastercard, ANZ and others.
Impact & Outcomes
- Built iOS/Android app from scratch — 10,000+ users in first 3 months
- Featured as Apple App of the Day, TechCrunch (Mike Butcher), BBC
- Integrated 2,500+ banks in 31 countries via Open Banking APIs
- Scaled team from 2 to 9 engineers across US, India, Eastern Europe
- Raised ~$1.5M from Antler VC, angels, and 1,000+ crowdfunding investors (367% overfunded)
- Led B2B pivot: IBM Cloud partnership, Mastercard LOI, fintech integrations
- Forbes 30 Under 30 Europe (2023), PwC Net Zero Future50, Product Hunt Golden Kitty
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