ET Capital successfully closes first round of groundbreaking venture index fund 

Fund to invest in up to 10 ventures by the end of the financial year.

10th January 2026, Cambridge, UK: ET Capital, a long-standing investor in high-growth technology businesses, has raised the Cambridge Venture Index SEIS/EIS Fund 1. The fund takes an innovative approach to early-stage venture investment, based on index-investing principles.

ET Capital will apply uniform investment criteria to up to 10 early-stage businesses that have emerged from the University of Cambridge and other Cambridge-based accelerator programmes, rather than following a standard venture capital approach of ‘picking winners’. It is already working on the first five investments.

Prioritising investors’ interests, the Cambridge Venture Index SEIS/EIS Fund 1 is focused on delivering predictable, risk-limited returns through structured diversification of venture investments and is backed by proprietary ET Capital research.1 The study used the financing history of nearly 200 start-ups in the Cambridge cluster to model the performance of a series of synthetic venture funds from 1992 to 2024. Using the same criteria across all cohorts, five of the six synthetic funds outperformed the FTSE 100 Index.

ET Capital is deploying this approach as an alternative to more traditional VC methods, which, while sometimes identifying winners, have several limitations including protracted investigation and negotiation that generate uncertainty and distraction for founders. In addition, VCs typically focus on the success of individual investee companies over building a balanced portfolio, which can amplify the volatility of venture fund performance.

Martin Rigby, managing director of ET Capital, said: “Cambridge’s capacity for science and technology, both in the University and the wider cluster, generates a strong flow of start-ups each year which need capital to grow. Too often, these start-ups sacrifice time and attention  trying to meet the needs of highly selective venture investors. The successful close of the first Cambridge Venture Index SEIS/EIS Fund demonstrates that there is significant appetite for an alternative approach, one that makes it easy for founders to access capital while  offering investors reduced risk through diversification.”

Raising the new fund was targeted at individual investors who can often find it hard to access the best deals coming out of the University and other originators in the cluster.

Struan McDougall, an investor in the Fund and managing director of local angel syndicate Cambridge Capital Group, said: “I’m delighted that the fund is now ready to start investing in the exciting deep-science start-ups created in the Cambridge cluster. It’s an excellent opportunity for business angels, such as members of the Cambridge Capital Group who invested in the fund, to get exposure to a wide range of these exciting deals.”

The fund has also committed to a founder-friendly approach. ET Capital, as the fund manager, will have minimal control rights and will focus on supporting founders, rather than challenging their role as managers.

Richard Green, a prominent Cambridge angel investor and investor in the fund, said: “Early-stage ventures come in many forms, and those that don’t fit the current favoured model can miss out on the investment they need to grow. ET Capital’s novel approach offers Cambridge’s deep science start-ups an excellent opportunity for additional investment at a critical stage in their development.”

Notes to Editors

1 ET Capital developed the Cambridge Venture Index through a detailed study of the performance* of nearly 200 technology businesses founded between 1992 and 2024 in the Cambridge ecosystem with their roots in four accelerator programmes: Cambridge Enterprise, Deeptech Labs, Start Codon and o2h.

The study modelled how synthetic funds would have performed against the FTSE 100 Index if they had followed an investment strategy consisting of a £100,000 investment for a minority position (49% or less) in a first round led by an external investor (not originator) with minimal due diligence undertaken to verify title & claims and avoid criminality.

Following this modelling, five out of six of the synthetic funds beat the FTSE 100 Index using an IRR based approach:

Cohort Fund performance cash-to-cash Fund performance, cash-to-cash and valuation FTSE 100 Index
1992-99 16.71% 16.83% 3.62%
2000-04 -5.85% -0.45 3.07%
2005-09 9.55% 10.69% 1.04%
2010-14 47.86% 48.14% 2.39%
2015-19 15.16% 27.63% 0.09%
2020-24 0.00% 40.65% 1.51%

*Derived from historical data collated by the Centre for Business Research at the Judge Business School, University of Cambridge, and analysed by ET Capital.

For more information, contact: etcapital@yourstorypr.com

 

About ET Capital
ET Capital, founded in 1992, is an investor in high-growth technology businesses based in southern England. The firm has raised and managed a series of funds focused mainly on the globally significant cluster of science-based companies around Cambridge, Oxford and London. Managed by executive directors Martin Rigby and James Griffiths and non-executive director David Gill, ET Capital has a 32-year track record of backing businesses in the Cambridge ecosystem. For more information, visit etcapital.com.