Craig Greenhouse is a rare polymath founder and trusted advisor to both high-growth fintechs and global banks. With two decades of hands-on leadership across software engineering, architecture, and regulatory standards, Craig is known for his strategic insight and ability to turn complexity into clarity. He has led seven - and eight-figure acquisitions and turnarounds through a mix of sharp strategy, technical fluency, and trusted relationships.
Craig was part of the original core team at the UK's Open Banking Implementation Entity (OBIE), where he helped shape the specifications, built the first third-party provider (TPP) and mock bank apps, and laid the foundations for what would become the UK's Open Banking ecosystem. He has also supported North American fintechs, helping clients build compliant, scalable solutions for the US market.
He later became the go-to problem solver for some of the most technically demanding challenges in fintech and banking-including the turnaround of a multi-million euro cybertech platform across Austria and Germany, where he led a 25-person engineering team to success in just six months, after years of prior failure.
Craig has personally acquired and turned around businesses ranging from £1.7M to over £10M in annual revenue, saving jobs and rebuilding trust in the process. He's also advised more than a dozen early-stage tech startups, helping founders build investor-grade systems, sharpen their narratives, and raise confidently at Series A.
His background is uniquely cross-disciplinary-blending C-level strategy, real-world code, systems thinking, and human psychology. Craig's lifelong love of music, electronics, and literature feeds his ability to “see the whole board” across product, tech, and execution. He's been a worship leader, a jazz pianist, a negotiation tactician, and a fixer for problems others couldn't name, let alone solve.
Craig now leads Opendata Consult Ltd, delivering zero-fluff architecture, high-trust technical guidance, and problem-solving firepower to fintechs building for scale and banks building for trust-including those navigating the US regulatory and market landscape.
Connect with Craig on LinkedIn https://www.linkedin.com/in/craigsg/
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