Lois Day
Managing Partner at 3SV
London, England
Overview
Work Experience
Venture Partner
2022 - Current
- Venture Partner in IP Group’s Investment Team, covering deep tech, cleantech, and life sciences. The role includes portfolio management (including hands-on operational roles), participating in Investment Committees, and leading the group's search for strategic investment opportunities. - Also serving as portfolio manager for a £30M early-stage UK VC fund, with the European Investment Fund and IP Group as the main LPs. Key Executive for the fund (alongside IP Group’s CEO and CFO), Investment Committee member, and chair the fund’s Advisory Board meetings. Led the remaining fund investments and now leading the fund’s divestment strategy.
Chair, AI Working Group
2025
Chairing IP Group's AI Working Group, aimed at ensuring the organisation leverages cutting-edge AI technologies to optimise its investment processes. This includes spearheading the development of proprietary tools that enhance decision-making and streamline operations, helping us to maintain a competitive edge in a rapidly evolving landscape.
Chair, Diversity & Inclusion Committee
2022
Led a 15-person I&D committee at IP Group, developing and executing the group's I&D Strategy. While serving as chair, IP Group went from being unranked in the Honordex Top Ten Inclusive VC Index to being ranked first place in 2024 and 2025.
Head of Technology Co-Investments, IP Capital
2019 - 2021
Head of Technology Co-Investments in IP Group's capital markets team, leading co-investments into IP Group portfolio companies, and helping to raise over $250M in equity for the group's deep tech and cleantech portfolio companies.
NED and Trustee, Legal & General Mastertrust
2025
L&G’s Mastertrust is the UK’s largest commercial mastertrust, with over £30bn in assets under management and 2 million members. In addition to Trustee and Non-Executive Director, I also serve as member of the Investment Committee and of the Member Experience Committee.
Non Executive Director
2021
Board Director roles held at multiple companies, including publicly listed in-content advertising solutions company Mirriad Advertising plc, chemtech company Aqdot Limited, and real estate investment company Fortitude Investments (Commercial) Limited.
Founding Partner
2022
Co-founded 3SV, which backs visionary founders building tech-enabled solutions that address the underserved needs of women; investing with both a financial and social impact lens.
Angel Investor
2019
Broad personal investment portfolio (pre-seed to Series B) with investments spanning climate tech, deep tech, fintech, health tech, and the future of work.
Board Observer
2020
Board Observer (formerly Investor Director) at cleantech company Econic, which develops catalyst technologies that incorporate waste CO2 into polyols.
Executive Director
2015 - 2018
Executive Director in the UK Investment Banking Team and headed Goldman Sachs’ EMEA Education sector. Provided best-in-class advice and execution of complex transactions on core investment banking product offerings (including mergers & acquisitions, debt, and equity advisory) with a focus on public companies.
Goldman Sachs is a multinational financial services firm providing securities, investment banking, and management services.
Vice President
2009 - 2015
Vice President in the Technology, Media & Telecoms Investment Banking team. Worked on a range of transactions including public and private M&A, buy-side and sell-side transactions, strategic reviews, restructurings, and defense mandates. Fast-paced role with reach across multiple geographies and sectors, but with a technology focus. Joined as an Analyst, promoted to Associate and then to Vice President; consistently top-ranked in year group.
Analyst
2008 - 2009
Joined the Real Estate M&A Team, working on advisory mandates for European property companies.
Morgan Stanley Venture Partners is a private equity firm that invests in high-growth companies in the technology and healthcare industries.
Analyst
2007 - 2007
Completed an internship at JEGI in New York, a pre-eminent M&A advisory firm for the global media, marketing, information, and technology industries.