Fundraising FoxMaximilian Stoiber
Angel networkSan Francisco · Pre-Seed–Series A · 2 people tracked
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Investment thesis
Max Stoiber and Sue Odio angel invest in early-stage startups, prioritizing the founders above all — asking whether the team can endure the challenge of building a world-changing company. They favor investing as early as possible to maximize the impact of their limited capital. Max personally gravitates toward products he would use himself, especially developer-focused tools. They position themselves as advisors with skin in the game, helping with ambiguous problems, lending their networks and audiences, and offering support. Because they invest on the side and focus on genuinely helping their portfolio, they rely heavily on warm introductions and trusted referrals when evaluating new opportunities.
Source: firm website, verified Oct 2, 2026.
Team · 2 people
from the firm's website & public directoriesWhat they invest in
from 14 of 22 portfolio companiesDeveloper Tools ×12Enterprise Software ×8SaaS ×7AI & Machine Learning ×6Cloud Computing ×5Cybersecurity ×3Data & Infrastructure ×3Future of Work ×3
HQs:United States×9Spain×1United Kingdom×1
Who they back
founder profiles across 12 portfolio companiesFounding team size:solo founder×42 founders×53 founders×3
Where their founders studiedfrom 19 founders with education data
Harvard University ×2Imperial College London ×2
What their founders studiedfrom 17 founders with field-of-study data
Computer Science ×7Engineering ×4Mathematics & Statistics ×2
Where their founders worked beforefrom 21 founders with career history
Monzo Bank ×3GitHub ×2
Accelerator rootsportfolio companies that came through a program
Investments · 22 tracked
founders shown can be your intro path
Abbot is a Slack bot that monitors customer conversations to ensure timely responses, automatically summarizes discussions, identifies relevant topics, and recommends follow-up actions for customer support teams.
Developer ToolsEnterprise SoftwareSaaSSales TechSan Francisco, US
Paul Nakata(Founder)inPhil Haack(Founder)in
Co-investorsY CombinatorMC GLMNOP LPPioneerQuery CapitalSoma CapitalTRAC (Third Round Analytics Capital)
Arcjet provides inline security controls for AI workflows and agents, enforcing action-boundary protections such as blocking unauthorized tool calls, preventing data exfiltration, and capping token usage.
AI & Machine LearningCybersecurityDeveloper ToolsSan Francisco, US
David Mytton(Executive Officer, Director)in
Co-investorsAndreessen Horowitz
An all-in-one team communication app; acquired by Notion.
Clerk provides user management and authentication infrastructure for developers, enabling quick integration of complete user management systems into applications.
CybersecurityDeveloper ToolsEnterprise SoftwareSaaSSan Francisco, US
Braden Sidoti(Executive Officer, Director)inColin Sidoti(Executive Officer, Director)in
BoardShvetank Jain(Director)Karan Mehandru(Director)in
Co-investorsAndreessen HorowitzCRV (Charles River Ventures)Madrona Venture GroupMango CapitalMenlo VenturesPreston-Werner Ventures+6 more
Fig develops autocomplete software, visual applications, and keyboard shortcuts for terminal interfaces, designed to make command-line tools more usable for both novice and experienced developers.
Developer ToolsEnterprise SoftwareSan Francisco, US
Brendan Falk(Founder)inMatt Schrage(Founder)in
Co-investorsGeneral CatalystScribble VenturesY CombinatorAbacus Capital GroupBasementBlackbird Ventures+10 more
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Flox provides tooling to manage software and its dependencies down to individual packages, including SBOMs and provenance, with reproducible environments that work across the software lifecycle.
AI & Machine LearningCloud ComputingCybersecurityDeveloper ToolsEnterprise SoftwareNew York City, US
Ron Efroni Rotman(Executive Officer, Director)Michael Brantley(CTO)inRon Efroni(CEO)inBen Futoriansky(Executive Officer)in
BoardAaron Jacobson(Director)inPavel Livshiz(Director)in
Co-investorsHetz VenturesNew Enterprise Associates (NEA)Angel Collective Opportunity FundEssence Venture CapitalFirestreak VenturesTilia Impact Ventures+6 more
Fly.io provides infrastructure and platform services for deploying and running applications in a distributed, globally-connected environment.
Cloud ComputingData & InfrastructureDeveloper ToolsEnterprise SoftwareChicago, US
Michael Dwan(Founder)Jerome Gravel-Niquet(Founder)inKurt Mackey(CEO)inScott Johnston(Executive Officer, Director)Matthew Cunningham(Executive Officer)
BoardMartin Casado(Director)in
Co-investorsAbstract VenturesAndreessen HorowitzElysium VenturesFrialeGeodesic CapitalHumans Of The Internet+15 more
incident.io Investigations is an AI agent for incident response that automatically triages incidents, gathers evidence from logs, code, telemetry, and deployment history, and generates hypotheses about what broke and why.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareSaaS
Stephen Whitworth(Founder)inChris Evans(Founder)inPete Hamilton(Founder)in
Co-investorsAngel Collective Opportunity FundIndex VenturesInsight PartnersMantis CapitalPoint NineVisionaries Club+3 more
Liveblocks provides APIs and infrastructure for building real-time collaborative tools, enabling multiplayer functionality for creative and productivity applications.
AI & Machine LearningCloud ComputingData & InfrastructureDeveloper ToolsHR TechSaaSSales TechSan Francisco, US
Guillaume Salles(Co-founder & Engineer)inSteven Fabre(Co-founder & Product Designer)in
Co-investorsAdventure FundAtlassian Venturesboldstart venturesKima VenturesBanana CapitalEssence Venture Capital
MagicBell provides notification infrastructure for product teams to build notification experiences for their users.
Cloud ComputingDeveloper ToolsEnterprise SoftwareSaaSBarcelona, ES
Hana Mohan(Founder)in
Co-investorsY CombinatorCherry VenturesConnect VenturesBrighter CapitalGlobevestorHarvard Management Company+1 more
Outsmartly offers conversion rate optimization (CRO) services and technology for ecommerce brands, running high-leverage tests and providing custom development to improve conversion rates, page load times, and page views.
E-commerceMarketing TechRetail Tech
Shalom Volchok(Founder)in
Co-investorsHumans Of The InternetMango Capital
A browser extension or command bar interface for the Arc browser that enables users to search and navigate browser history, manage open tabs, and access productivity tools like ChatGPT integration and system utilities.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareFuture of WorkSaaSLondon, GB
Thomas Mann(Founder)inPetr Nikolaev(Founder)in
Co-investorsAccelAtomicoChapter OneCoatue ManagementY CombinatorAtlassian Ventures+2 more
Upstash is a data platform for developers that handles infrastructure management, allowing users to focus on application development.
Cloud ComputingData & InfrastructureDeveloper Tools
Co-investorsAndreessen HorowitzMango CapitalScaleX VenturesBek Ventures
Zed is a code editor written from scratch in Rust that uses multiple CPU cores and the GPU for high performance, with support for running AI agents in parallel to edit code and run tools.
AI & Machine LearningDeveloper ToolsFuture of Work
Nathan Sobo(CEO & Co-founder)inAntonio Scandurra(Co-founder)inMax Brunsfeld(Co-founder)in
Co-investorsMatchstick VenturesNimble PartnersPreston-Werner VenturesRedpoint VenturesRoot Ventures Manager, LlcSequoia Capital+3 more
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Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Along (sunset)DevJobsDXRemote First CapitalStackShareStorytell
Portfolio news
latest coverage across their companies
Fly.io · superbcrew.com · Aug 7, 2026
Clerk · trysignalbase.com · Oct 17, 2025
Arcjet · fintech.global · Oct 10, 2025
flox · thesaasnews.com · Sep 26, 2025
Zed · finsmes.com · Aug 20, 2025
Incident · techcrunch.com · Apr 10, 2025
Frequently asked questions
- How many investments has Maximilian Stoiber made?
- Maximilian Stoiber has 22 tracked investments, 1 of which have exited.
- What stage does Maximilian Stoiber invest at?
- Maximilian Stoiber invests at the Pre-Seed, Seed, Series A stages.
- What sectors does Maximilian Stoiber focus on?
- Maximilian Stoiber focuses on AI & Machine Learning, Cloud Computing, Cybersecurity, Data & Infrastructure, Developer Tools, Enterprise Software, SaaS.
- Where is Maximilian Stoiber located?
- Maximilian Stoiber is headquartered in San Francisco, US.
- Who does Maximilian Stoiber co-invest with?
- Maximilian Stoiber most often shares deals with Y Combinator, Andreessen Horowitz, Mango Capital, among 43 tracked co-investors.
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