
Tim Rea
Investor
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- Full Name
- Tim Rea
- Title
- Co-Head of Early Stage
- Firm
- BGF (Business Growth Fund)
- Firm Type
- Growth capital / venture investor (not an angel; BGF is a ~£2.5bn+ evergreen investment firm, one of the UK & Ireland's most active)
- Investment Stage
- Early stage — late seed to Series B (via BGF's dedicated Early Stage team)
- Check Size
- ~£1m–£10m per company (BGF cites £3m–£10m initial cheques for its Early Stage programme, with follow-on capacity)
- Target Company Profile
- Privately owned, IP-protected businesses headquartered in the UK or Ireland, late-seed to Series B, turning breakthrough R&D into scalable companies
- Sector Focus
- Deep tech and life sciences (with particular passion for diagnostics and disruptive healthcare technologies); also climate/sustainability across the broader early-stage team
- Geographic Focus
- United Kingdom and Ireland (BGF operates through ~14 regional offices)
- Location
- London (also active in Cambridge)
Background
Tim Rea has spent more than 20 years in the venture capital and start-up ecosystem, first as an entrepreneur and subsequently as an investor. He has been a party to more than 120 investments across a wide range of sectors, stages and geographies. Before BGF he held roles connected to SoftBank, NEC and DFJ ePlanet Capital, giving him deep exposure to global technology (TMT) investing. He holds an MBA from London Business School.
Tim joined BGF in January 2018, after informally supporting the firm on a number of projects over the preceding 18 months. His main role is to identify and execute investments with a particular focus on technology-oriented and life-sciences propositions, and he sits on BGF's Investment Committee. He is now Co-Head of the firm's Early Stage team, which he manages alongside colleagues such as Dennis Atkinson and Ian Downing.
At BGF, Tim has been instrumental in expanding the firm's support for the life sciences sector across its regional office network, with a personal emphasis on diagnostics. BGF's Early Stage arm backs founders across the UK and Ireland building world-leading businesses in deep tech and life sciences, and now holds a portfolio of roughly 70 early-stage companies within BGF's ~350-company total.
He takes active board and advisory roles at portfolio companies, having served as a director or board member at businesses including PredictImmune, OrganOx, PhoreMost, CroíValve, Phico Therapeutics, and — from earlier in his career — companies such as Paddle, BullGuard and Palringo.
Investment Thesis & Focus
- Invests through BGF's Early Stage team in late-seed to Series B UK & Ireland companies, writing cheques generally in the ~£1m–£10m range with substantial follow-on capacity.
- Concentrates on deep tech and life sciences — Tim is "particularly passionate about the application of new, disruptive technologies into the healthcare and life sciences ecosystems," with a specific interest in diagnostics.
- Looks for IP-protected, privately owned businesses with breakthrough technology and clear scale potential; BGF positions itself as a patient, minority, non-controlling partner rather than a short-horizon fund.
- In his own words on the sector opportunity: *"The UK and Ireland is brimming with talent, and we are at the forefront of innovation in some of the most critically important sectors of our time."*
- On the diagnostics thesis behind the PredictImmune deal: *"The diagnostics landscape has changed dramatically in recent years,"* particularly around early prognosis and disease management.
Notable Investments
- PredictImmune — Cambridge diagnostics company (prognostic tests for immune-mediated disease); BGF co-led a £10m Series B in July 2019 (with Parkwalk, Cambridge Enterprise and Cambridge Innovation Capital). Tim joined the board as non-executive director. It was BGF's eighth life-sciences investment in 12 months.
- CroíValve — Irish structural-heart medical-device company (tricuspid valve therapy); BGF invested and Tim joined the board. CroíValve expanded its Series B to ~$36m (2025–26).
- OrganOx — Oxford-based liver-transplant / organ-preservation technology; a BGF Early Stage follow-on investment. Tim has served on its board.
- PhoreMost — Cambridge drug-discovery / target-identification biotech; Tim has served as a non-executive/board member.
- Enhanc3D Genomics — Cambridge functional-genomics company; a 2022 new BGF Early Stage investment.
- Elasmogen — Aberdeen therapeutic-biologics (soloMER antibody) company; 2022 new investment.
- Crypto Quantique — London IoT cyber-security company; 2022 new investment.
- Tepeo and Cheesecake Energy — Reading and Nottingham clean-energy / storage companies; 2022 new investments by the early-stage team.
- Oxbotica (autonomous vehicles), Bramble Energy (hydrogen fuel cells) and Arborea (agritech) — 2022 follow-on investments by the team.
- Earlier-career board roles: Paddle, BullGuard, Palringo, Phico Therapeutics, SPOKE, Odimax.
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