Meet the team.
Explore our portfolio of executive C-suite expertise, each available on a fractional basis.
Marc Hartog
Fractionality Founder, Fractional CFO
Marc is a seasoned C-suite leader—CEO, CFO, and NED—with a 25-year track record in scaling media and tech businesses. He founded Fractionality, a strategic C-level consultancy offering Fractional CxO services to help high-growth organisations raise capital, optimise operations, and prepare for exit.
Libby Porteous
Fractionality Client/Partner Relations
Libby leads Client and Partner Relations at Fractionality. She connects founders with the right fractional CxO, shapes smooth onboarding, and builds partnerships that actually help. She also steers our editorial and all-round marketing, sharing practical resources, tips and tools for founders.
Mark Bounds
Fractional CFO
Mark is ACCA fellow qualified and a Certified Advanced Financial Modeler with a track record in media and information businesses. He has experience rebuilding forecasting, tightening controls and improving profitability, then guiding teams through sale and post-deal change. Known for bringing order without fuss and turning messy reporting into decisions people can use.
Kevin Griffiths
Fractional CFO
Kevin often supports venture-backed teams in fintech and SaaS. He has experience blending fundraising support with forecasting, board-ready reporting and sensible debt strategy, so cash and growth stay in step. Known for a calm, clear style that gives founders confidence from week one.
Nicola Marshman
Fractional CFO
Nicola has a diverse range of experience including extensive work with early-stage tech and cleantech founders. She has strong experience in forecasting, fundraising and grant strategy, and is often asked to shape investor materials that carry a story with clarity. Practical, reassuring and good at building the rhythm teams grow on.
Jeff Harris
Fractional CFO
Jeff has worked across life sciences and cleantech and is often the steady hand in investor conversations. He has experience with grant funding, financial planning and translating complex science into numbers that make sense, including sourcing capital from leisure-focused investors. A good fit when credibility and clarity need to arrive together.
Jamie Hezelgrave
Fractional CMO
Jamie is a fractional CMO who has experience turning positioning into growth through practical go to market plans, clear metrics and steady delivery. At Fractionality he pairs brand strategy with accountable performance marketing to give founders a marketing function that works without the full time hire.
Sheralee Ghione
Fractional Financial Controller
Sheralee has experience building finance functions for growing SMEs across retail, manufacturing, construction, media, healthcare, professional services and charities. Systems, controls and on-time reporting are her focus. Often the right choice when a business needs clean foundations without slowing down.
Simon Boakes
Fractional CFO
Simon often steps in when modelling, fundraising and narrative need to line up. He has experience across insurtech, SaaS, healthtech, clean energy and more. Simon is known for commercial models that hold up in the room. International scaling, investor readiness and exit planning regularly feature in his work.
Wouter Raasveldt
Fractional CFO / CSO / COO
Wouter has worked at the intersection of strategy and capital across deeptech, fintech, cleantech and blockchain. He is frequently involved in capital strategy, partnerships and M&A, with an operator’s eye for what will work day to day. Useful when a strategic plan needs both clarity and traction.