Isomer Capital
About Isomer Capital
Isomer Capital is an independent investment firm established in 2015, focusing on European venture capital. The firm specializes in supporting early-stage VC firms and technology-enabled companies across Europe, having invested in over 30 countries and nearly 1,000 technology companies through fund commitments and co-investments. Recognized as the most active non-government Limited Partner in European venture capital from 2020 to 2025, Isomer Capital is classified as a small, non-interconnected MIFIDPRU investment firm.
The firm employs two main strategies: making VC fund commitments to early
Isomer Capital is headquartered in London, England, United Kingdom. The founding partners and the people who lead its AI investing are not confirmed in this profile.
Lounge lists the firm's focus stages as Seed, Series A and Series C+. Check sizes for these stages are not confirmed in this profile.
Investing activity
Isomer Capital is listed on Lounge as a venture capital investor based in London, England, United Kingdom. The deals desk records Series A and later AI rounds and seeds over $10M, so smaller checks may not show here yet.
Deals
Frequently asked questions about Isomer Capital
Where is Isomer Capital based?
Isomer Capital is based in London, England, United Kingdom. Its website is isomercapital.com.
What stages does Isomer Capital invest in?
Lounge lists Seed, Series A and Series C+ as the firm's focus stages. Check sizes are not confirmed in this profile.
Does Isomer Capital have AI portfolio companies?
AI-specific portfolio companies have not been confirmed for this profile. Founders should check the firm's website at isomercapital.com for current portfolio information.
How can founders contact Isomer Capital?
Founders can reach the firm through its website at isomercapital.com or its LinkedIn company page.
Is Isomer Capital an AI-focused venture firm?
This profile does not yet confirm an AI-specific mandate. The firm's listed focus is early-stage venture capital and technology-enabled companies in Europe.
How can founders reach Isomer Capital?
Founders on Lounge can see Isomer Capital's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with the firm under Warm Paths, and add Isomer Capital to their Investor Pipeline to track the conversation.