Mats Stigzelius

Co-founder and Managing Partner @ Founder Factor

About

A seasoned Founder, CEO, NED and Investor with 25 years’ experience in strategy consulting, private equity, venture capital, and venture building. Managing Partner at Founder Factor, investing in top YC startups (pre demo day) alongside YC Alumni, backed by European Angel Investors and Family Offices. Partner at Rainmaking, a leading global venture builder and investor. To date, we’ve built 40 startups of our own and helped build and scale over 1,800 companies (through Startupbootcamp, Rainmaking Innovation and Raspberry). Co-founder and investor, Raspberry (angel syndicate). Co-founder of Startupbootcamp. the largest early stage investor outside of the US with over 1,800 startups globally. Co-founder of Rainmaking Loft (www.rainmakingloft.com), a European chain of co-working spaces and home to several hundred entrepreneurs and startups (exit 2017). Before Rainmaking, I spent over ten years in Strategy Consulting and Private Equity, developing and implementing business plans and growth strategies, completing 15 acquisitions, refinancings and exits, in addition to sitting on the board of a number of companies as a non-executive director.

Country

City

United Kingdom

Industry

Venture Capital & Private Equity

Skill

Portfolio Management, Venture Capital, Entrepreneurship, Strategy, Mergers, FMCG, Mergers & Acquisitions, Leadership, Financial Modeling, Management Consulting, Start-ups, Asset Management, Investment Banking, Business Development, Acquisition Integration, Business Strategy, Business Modeling, Banking, Corporate Finance, Marketing Strategy

Experience

Co-founder and Managing Partner

Founder Factor

2025-8 - Present · 1 yr 2 mos

London Area, United Kingdom

Founder Factor invests in the top Y Combinator startups in each batch. We combine proprietary AI prediction model that identifies the top startups of each batch, with a collective of YC Alumni founders that provides deal-access, due diligence and final investment selection. Founder Factor is available to family offices and qualifying HNW investors. F25 investments: Imagine AI DiligenceSquared Crunched Metorial AutoAce AirCaps Compyle OpenBuilder Kaigo Health Lua Global Inc Kestrel AI Bear Clicks Aspect Parrot Specific W26 investments: Robby Carson 10x Science Vector Legal Piris Labs One Robot RoboDock Panta Samora AI Voltair Reframe Corvera Mango Medical Constellation Space SpotPay Mendral Seeing Systems Polymorph Oxus Cajal EigenPal Fort Cumulus Labs Jinba Klaus AI CellType Crosslayer Labs

Co-Founder

Startupbootcamp

2010-1 - Present · 16 yrs 9 mos

Startupbootcamp is the number one startup accelerator in Europe, MENA, Asia, Australia, Africa and LATAM, having supported and invested in over 1,800 startups since 2010. GBP 1.4bn+ follow on investment raised. To find out more: https://www.startupbootcamp.org/

Founding Partner

Rainmaking

2009-12 - Present · 16 yrs 10 mos

London, Copenhagen, Singapore, Dubai, Mexico City

Seed capital and early stage investment company that launches its own start-ups and helps grow existing early stage start-ups. www.rainmaking.io

Co-founder and investor

Raspberry Ventures

2022-6 - Present · 4 yrs 4 mos

London, England, United Kingdom

Pan-European angel syndicate investing in Climatech and AI alongside leading VC funds.

NED

Influx Data

2025-4 - Present · 1 yr 6 mos

London Area, United Kingdom

Influx is a data-first platform that scores every Creator in real-time, delivering sophisticated, live performance measurement on influencer campaigns.