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Warm Fund

Episode One Ventures

www.episode1.com · London, UK

“Back ambitious 'go-all-in' founders building defensible B2B software at pre-seed and seed, and support them intensively through the journey to Series A. Focus on AI, infrastructure, health, TechBio, open source, and marketplaces.”

$315K – $2.5M
Check Size
Leads & Follows
Lead Tendency
$95M
AUM
~2 Weeks
Timeline
01Investment Thesis

Back ambitious 'go-all-in' founders building defensible B2B software at pre-seed and seed, and support them intensively through the journey to Series A. Focus on AI, infrastructure, health, TechBio, open source, and marketplaces.

Exclusion Criteria

No B2C consumer apps, no hardware, no non-software businesses. Rarely invest outside UK and Europe.

02Investment Team
HM
Hector Mason
General Partner
AS
Adam Shuaib
General Partner
SM
Simon Murdoch
General Partner
PM
Paul McNabb
General Partner
AL
Adrian Lloyd
General Partner
MS
Millan Suri
Principal
CM
Carolina Monck
Investor
NZ
Nuan Zhang
Investor
MP
Megha Prakash
Venture Partner
SO
Steph Orde
Chief Financial Officer
03F4 Research Brief

Episode 1 Ventures Research

Investment Thesis

Episode 1 is a London-based early-stage venture capital fund investing exclusively in B2B software companies at the pre-seed and seed stages. Founded in 2010, the firm has developed a clear thesis: back ambitious founders solving real problems that "must exist" and support them intensively through the pre-seed to Series A journey. The fund deliberately avoids B2C and hardware, focusing on defensible software businesses where founders have deep technical or domain expertise.

Episode 1 looks for "go-all-in" entrepreneurs — founders willing to quit their day jobs to pursue an ambitious vision. The ideal founder is experienced in their sector, capable of hiring world-class talent, data-driven in their decision making, and has a demonstrated ability to execute at speed. The fund has developed proprietary data-driven sourcing tools that scan signals from LinkedIn, Product Hunt, GitHub, and similar platforms, with approximately one-quarter of recent investments sourced this way.

Stage Focus

The fund operates strictly at pre-seed and seed stages, typically entering as the first institutional investor. Episode 1 retains pro-rata rights and follows on through Series A but does not usually invest beyond that milestone. The firm's primary objective is helping portfolio companies reach a successful Series A — and it has achieved a 73% Series A conversion rate from its prior fund, a standout metric in early-stage VC.

Check Size

Episode 1 writes cheques between £250,000 and £2,000,000. For lead investments, they target 10–20% ownership. For follower positions, they take 5–10% ownership. The firm backs approximately 10–12 companies per year.

Sector Focus

The core focus areas are AI and infrastructure, health and TechBio (computational biology, synthetic biology, quantum computing), developer tools, open source software, and marketplaces. The fund has increasing conviction in AI-native businesses and remains active in regulated sectors like fintech, legaltech, and supply chain. Notable portfolio concentrations include enterprise workflow automation, data infrastructure, security and compliance, and B2B fintech.

Geographic Focus

Episode 1 invests primarily in UK-based companies, with selective investment in US and European startups that have substantial UK operations or roots. The firm is headquartered at 112–116 New Oxford Street, London WC1A 1HH and is FCA regulated (reference number 604481).

Fund History & Status

Fund III closed in February 2024 at £76 million ($95M), the firm's largest fund to date. Limited partners include the British Business Bank (via British Patient Capital, which committed £20M), Molten Ventures, and approximately one-third founder-LPs including Alex Chesterman (Zoopla), Aidan Corbett (Webgains), and Aron Gelbard (Bloom & Wild). The fund is actively deploying at a pace of 10–12 investments per year, with 9 investments made in 2025 and at least 1 follow-on in early 2026. Total portfolio spans 65+ active companies and 166+ total investments across all funds.

Decision Process

Episode 1's process is notably fast — typically within a fortnight of first meeting, and sometimes as quick as two days. The journey involves an initial meeting with one team member, followed by 1–3 additional meetings with remaining investment committee members before a decision is reached. Cold outreach is accepted via the "Submit your Deck" mechanism on their website.

Portfolio Highlights

Notable active portfolio includes Robin AI (AI-powered legal services), QuestDB (ultra-fast time series database), Superlinked (vector embeddings infrastructure), Carwow (leading car marketplace), Omnipresent (global employment-as-a-service), StackOne (unified integration API), Attest (customer research platform), Risk Ledger (supply chain compliance), Lawhive (AI legal marketplace), Mimica.ai (process automation), and PandasAI (LLM-powered Python tooling).

Notable exits include: Fatmap (3D terrain mapping, acquired by Strava, 2023), SimplyCook (meal kit service, acquired by Nestlé, 2021), Passfort (digital KYC compliance, acquired by Moody's), Aimbrain (biometric authentication, acquired by BioCatch), and Touch Surgery (surgical AI, acquired). The total capital raised by portfolio companies exceeds £170M.

Team

The fund is led by five General Partners:

  • Hector Mason — Serial founder, Forbes 30 Under 30, host of the Riding Unicorns podcast. Brings founder empathy and a strong network across the UK startup ecosystem.
  • Adam Shuaib, PhD — Cambridge PhD. Leads data-driven investment efforts with a focus on early-stage AI deals. Strong quantitative background with experience in computational methods.
  • Simon Murdoch, PhD — 20+ years investing in London. Founding partner who previously founded Bookpages, acquired by Amazon (which became Amazon.co.uk). Deep experience in marketplace and software businesses.
  • Paul McNabb — Serial entrepreneur turned investor. Brings operational depth and a founder perspective to portfolio support.
  • Adrian Lloyd — Oxford and Stanford alumnus with global investment experience. Swiss-British background with international network.

The investment team also includes Principal Millan Suri, Investors Carolina Monck (Synthetic Biology PhD) and Nuan Zhang, and Venture Partner Megha Prakash (tech founder and AI investor with M&A background). Paul Fifield serves as Entrepreneur in Residence, specializing in GTM and US expansion.

Founder Preferences

Episode 1 backs founders with relevant sector experience, technical depth, and the ambition to build category-defining companies. They value data-driven operators who know their customers intimately and can hire exceptional talent. The firm explicitly supports the "0 to 1" journey — helping founders with customer introductions, investor connections, GTM guidance, and hiring support through the episode1.com/portfolio network.

04Selected Portfolio
Biotech & Life Sciences
Presentient·Sable Bio·Hyperunison
Climate & Sustainability
Building Atlas
Crypto & Web3
Sphere
E-commerce & Marketplaces
Carwow·Huboo·Simplicity DX·Zipcube
Enterprise Software
Attest·Auquan·CircuitMind·Cloud NC·Dragonfly·Edgetier·Frame·Global App Testing·Intryc·Kleene·Mantic·Mimica·Ori Industries·PandasAI·PerchPeek·Phasecraft·QuestDB·Robin AI·Source.dev·StackOne·Stelia·Supercede·Superlinked·TripTease·Webiny·FluidStack·Jack & Jill AI
Fintech & Payments
Adsum·Shuffle Finance·Treecard·Triffin·Record OS
Food & Beverage
Simply Cook
Healthcare & Digital Health
Effra·Sama·Sano Genetics
HR Tech & Future of Work
Omnipresent·Zelt
Legal & Regtech
Lawhive
Logistics & Supply Chain
Chillchain·Raft·Scurri
Marketing & Adtech
Adludio
Media & Entertainment
Fatmap
Robotics & Automation
Opteran
Security & Cybersecurity
Refute·RevEng.AI·Risk Ledger·tru.ID
Other
FIGFIN
Open the full portfolio→
05Recent Updates

Fresh signals from public announcements, essays, and portfolio activity.

Led Record OS's $2M pre-seed round for AI-driven accounting and tax automation platform for UK self-employed professionals.
INVESTMENT·cfotech.co.uk+3
JUN 10, 2026
Participated in Jack & Jill AI's $20M seed round for conversational AI-powered recruitment.
INVESTMENT·techcrunch.com
OCT 2025
Portfolio company Huboo entered administration in December 2024 after failing to secure £6M in bridge funding; pre-pack deal completed at nominal value.
NEWS·rainmakers.thebusinessdesk.com
DEC 2024
Closed Fund III at £76M ($95M), its largest fund, to back pre-seed and seed B2B software startups in the UK.
NEW FUND·techcrunch.com+1
FEB 2024
06Frequent co-investors
EF
Entrepreneur First
Both backed 3 of the same companies
Omnipresent, Mimica, Cloud NC
BC
Balderton Capital
Both backed 2 of the same companies
Lawhive, Adludio
IC
IQ Capital
Both backed 2 of the same companies
Opteran, RevEng.AI
OC
Osney Capital
Both backed 2 of the same companies
RevEng.AI, Refute
OC
Oxford Capital
Both backed 2 of the same companies
Attest, Shuffle Finance
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Quick Reference
Check Size
$315K – $2.5M
Stages
Pre-Seed · Seed
AUM
$95M
Decision
Investment Committee · ~2 Weeks
Warm Intro
Not Required
Involvement
Board Seat
Location
London, UK
Sector Focus
Fintech & PaymentsBiotech & Life SciencesEnterprise SoftwareDeveloper Tools & InfrastructureHealthcare & Digital Health
Models
B2B SaaSEnterprise SoftwareMarketplaces
Technology
AI/MLDeveloper ToolsTechBio
See all Fintech & Payments investors →See all Biotech & Life Sciences investors →See all Enterprise Software investors →
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Focus Areas
Fintech & PaymentsBiotech & Life SciencesEnterprise SoftwareDeveloper Tools & InfrastructureHealthcare & Digital Health

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F4 Intelligence Report · Last Researched July 30, 2026F4 Research Engine