Open banking API platform

Ozone API empowers banks and financial institutions to adapt and thrive in the new world of open data, by providing the technology to unlock the power of open finance and change the world.

The UK-based fintech provides the leading standards-based open API platform, supporting all global standards and providing the tools and expertise to help banks and financial institutions create real commercial value.

We led a £8.5mn investment round in open banking platform Ozone API in December 2023.

Investment rationale

Ozone API is an industry recognised world-class product, led by a founding team who deeply understand their market and have built their business in a capital-efficient manner. We look forward to supporting management as they focus on growing significantly over the coming years.

Investment Team

Greg Blin

Investment Partner

Greg sources and executes investments into fast-growing businesses and is our resident consumer expert. He combines a natural flair for understanding the drivers of brand value, insight into wider market dynamics and strong corporate finance experience.

I first got into growth investing because it has afforded me the opportunity to work and build relationships with some incredibly talented entrepreneurs and ambitious management teams to support them on their growth journey.

Greg joined Gresham House Ventures in 2021 and has been part of the Mobeus VCTs team since 2013.

Previous investments and Board positions include Virgin Wines, MPB, Rotageek and Buster + Punch.

Greg’s previous roles include investments at Piper Private Equity and Corporate Finance at PwC. He holds a BA/ ACC in Business Studies and Accounting and is a Chartered Accountant (ICAS).

Outside of work, Greg enjoys a range of sports including golf, tennis and skiing, would secretly love to be a DJ, and has a passion for travel.

Example portfolio

James Hendry

Investment Director

James joined Gresham House Ventures in December 2019 as an Investment Manager and was promoted to Investment Director in 2024. He focuses on investing into high-growth enterprise software and services businesses, with a focus on process automation, data and analytics, and cybersecurity solutions.

At GHV, James has led investments in Fu3e, OzoneAPI and Veremark, and serves as Investor Director on the board of SecureCloud+.

Prior to joining GHV, James spent five years at PwC, most recently in the financial due diligence team. He is a Chartered Accountant (ICAEW) and holds an MA in Economics and Accounting from the University of Edinburgh.

Example portfolio

Ozone API

Privacy Preference Center