Mike Arpaia
InvestorManaging Partner at Moonfire Ventures · Executive at Moonfire
United Kingdom
Writes $100K – $5M checks · typically $1.5M
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Ask Saran Davies to introduce you to Mike
You →Saran · together at Government Office for Science (2022) →Mike
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You →Jamie · together at iSEC Partners →Mike
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You →Sam · 3 people · together at Kolide →Mike
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About
Listed as author of a Moonfire engineering article.
Contact· published on Mike's own website
Invests in
AI & Machine LearningClimate TechCybersecurityData & InfrastructureDeep Tech
Beyond investing
- Founded
- Co-founded Kolide. Created and open-sourced osquery while at Facebook in 2014.
- Education
- Completed a program at Johns Hopkins University (JHU) in February 2023.
- Boards
- Served as an AI Advisor to the UK Government Office for Science.
- Communities
- Was a guest lecturer at ETH, LBS, and UCL.
- Awards
- Completed avalanche training with the American Avalanche Association (A3) in January 2024 via Silverton Avalanche School in Ophir, CO. Completed Canadian Avalanche Association (CAA) certification in May 2023. Recertified with the National Outdoors Leadership School (NOLS) in May 2025 in Boulder, CO.
- Hobbies
- Spends time in the mountains with his family and has long-standing interests in wilderness medicine and avalanche operations. Maintains open-source software for biological engineering across data infrastructure, machine learning, robotics, and formal methods.
- Family
- Spends time in the mountains with his family.
From Mike's own website — common ground for a warm intro.
Executive at Moonfire
Intro paths
In turn, Mike can intro founders to Moonfire's investors below.
Moonfire's investors · 2
Co-founders at Moonfire


Experience
- MoonfireManaging Partnercurrent2020 — presentLondon
- Government Office for ScienceArtificial Intellgence Advisor2022 — 2023United Kingdom
- WorkdayMachine Learning Architect2020Boulder, Colorado, United States
- WorkdayPrincipal Machine Learning Engineer2019 — 2020Boulder, Colorado, United States
- Mila - Quebec Artificial Intelligence InstituteMachine Learning Research Engineer2019 — 2020Montreal, Quebec, Canada
- KolideCo-Founder & CTO2016 — 2019Boulder, Colorado, United States
- MetaEngineering Manager2015 — 2016Menlo Park, California, United States
- MetaStaff Software Engineer (E6)2014 — 2015Menlo Park, California, United States
- EtsySenior Software Engineer2013 — 2014Brooklyn, New York, United States
- EtsySoftware Engineer2012 — 2013Brooklyn, New York, United States
- iSEC PartnersSecurity Engineer2011 — 2012New York, New York, United States
- Gotham Digital Science, a Stroz Friedberg companySecurity Engineer2011New York, New York, United States
Skills & more
From Mike's professional profile.
Investments
Per curated public sources.
Colleagues at Moonfire Ventures
Network2
Investors connected to Mike in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Mike Arpaia?
- Listed as author of a Moonfire engineering article.
- Where does Mike Arpaia work?
- Mike Arpaia is Managing Partner at Moonfire Ventures.
- What does Mike Arpaia invest in?
- Mike Arpaia invests in AI & Machine Learning, Climate Tech, Cybersecurity, Data & Infrastructure, Deep Tech.
- What check size does Mike Arpaia write?
- Mike Arpaia typically writes checks of $100K – $5M.
- What companies has Mike Arpaia invested in?
- Investments tracked here include Fleet Device Management, LiveFlow, Trickest.
- What awards has Mike Arpaia received?
- Completed avalanche training with the American Avalanche Association (A3) in January 2024 via Silverton Avalanche School in Ophir, CO. Completed Canadian Avalanche Association (CAA) certification in May 2023. Recertified with the National Outdoors Leadership School (NOLS) in May 2025 in Boulder, CO.
Founder mafias
Meta mafia330
Also came through, then founded or led a company.
Workday mafia44
Also came through, then founded or led a company.
Moonfire Ventures mafia2
Also came through, then founded or led a company.
Shared employers
Also worked at Government Office for Science2
Also worked at Workday83
+ 77 more
Also worked at Mila - Quebec Artificial Intelligence Institute15
+ 9 more














































