Alessio Fanelli
InvestorPartner at Decibel Partners
San Francisco, California
Writes $1M – $6M checks · typically $2M
About
Alessio Fanelli is a partner at Decibel who works with technical founders building tools for technical users, advising on product design, go-to-market strategy, and technical recruiting. He was previously a Principal at 645 Ventures, focusing on dev tools, security, and enterprise SaaS. Earlier he founded Smart Torvy, an open source and hardware home automation platform, and worked as a lead engineer at early-stage startups including Welcome Tech; he co-hosts the Latent Space podcast on AI.
Alessio Fanelli @fanahova
Sol ran for 8.5 hours last night but it started spamming "@codex review" in every pull request after every commit, never seen this one before. https://t.co/IfYhwQNuLS
Jul 11, 2026 · ♥ 7 · ⇄ 1
Alessio Fanelli @fanahova
Congrats @clattner_llvm and the whole @Modular team on their acquisition! If you want to rewind the clock on their story, we first interviewed Chris in September 2023. https://t.co/wJkXUdmkDG
Jun 24, 2026 · ♥ 7 · ⇄ 2
Alessio Fanelli @fanahova
Excited to back @sgrove's new co. Everyone will become the CEO of their own AI agent company. They are launching with daily free GLM-5.2 inference powered by @wafer_ai, let's go open models 🔥 https://t.co/B0HNf9NQjC
Jun 23, 2026 · ♥ 9 · ⇄ 2
Invests in
AI & Machine LearningCybersecurityDeveloper ToolsEnterprise SoftwareSaaS
Experience
- Kernel LabsFoundercurrent2025 — presentSan Francisco Bay Area
- Latent Space PodcastCo Hostcurrent2023 — present
- Decibel PartnersPartnercurrent2022 — presentSan Francisco Bay Area
- Merlion GamesCo-Ownercurrent2025 — presentSan Carlos, California, United States
- Nextgen PartnersBoard Member2021 — 2024
- 645 VenturesPrincipal2021 — 2022San Francisco, California, United States
- 645 VenturesVice President2020 — 2021San Francisco, California, United States
- 645 VenturesDirector Of Engineering2019 — 2020New York City Metropolitan Area
- 645 VenturesEngineer2018 — 2019
- 645 VenturesEngineering Fellow2018
- MikamaiConsulting Software Engineer2017 — 2018Milan, Lombardy, Italy
- Welcome TechnologiesLead Engineer2016 — 2017Los Angeles Metropolitan Area
- GENIUSCommunity Moderator2013 — 2017
- Smart TorvyFounder2014 — 2016
- Divet TechFounder2013 — 2016
- FreelancerFreelancer2014 — 2016
- Reign eSports (Acquired by VwS Gaming)Head of Graphics2013 — 2014
- Maker Studios IncVideo maker2012 — 2014
- YouTubePartner2012 — 2014
- The eSports RevolutionHead of Graphics2013 — 2014
Education
- University of Rome Tor VergataPhysics & Computer Science
- Liceo Scientifico Newton2008 — 2013
- John Cabot UniversityLiterature
Skills & more
+2 more
Continuous IntegrationGraficaLanguages Inglese · Italiano
From Alessio's professional profile.
Same school
Also attended University of Rome Tor Vergata14
+ 8 more
Also attended John Cabot University11
+ 5 more
Shared employers
Also worked at Nextgen Partners7
+ 1 more
Also worked at Welcome Technologies7
+ 1 more
Also worked at Maker Studios Inc7
+ 1 more
Also worked at YouTube43
+ 37 more
Investments
Investor
BigeyeCube DevLaunchableOortPanther Labs
Per the firm's website.
Colleagues at Decibel Partners
Network9
Investors connected to Alessio in public investor directories — a warm-intro map.