🦊/Investors

Flex Capital Partners

Venture capitalActively deployingoperating company · company profile

San Francisco · Pre-Seed–Series A · 14 people tracked

Also known as FLEX CAPITAL MANAGEMENT, L.L.C.

Find your way into Flex Capital Partners

3,395 people in our graph share verified history with the Flex Capital Partners team — schools, employers, funds. One of them is your warm intro.

Laura Buhlerunlockedknows Nate Maslak · together at McKinsey & Company (overlapped)
×3knows the team · via Y Combinator
knows the team · via Strapi
×2knows the team · via Yale University
knows the team · via Harvard Business School
knows the team · via Siemens Corporate Research
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Investment thesis

Flex Capital invests at the seed stage as generalists with conviction, led by GPs who have founded, scaled, and exited category-defining companies. The firm positions itself as an operator-led partner offering hands-on support beyond the initial check, including customer introductions, executive recruiting, and follow-on capital via reserves. It emphasizes founder-friendly terms, pledging voting shares back to founders so they retain control, and leverages a network of 300+ Limited Partners made up of founders, CEOs, and investors to open doors and share deal flow. Every pitch is reviewed by a partner.

Source: firm website, verified Sep 15, 2026.

Stage
Pre-Seed–Series A
Check
$500K – $2M
HQ
San Francisco, US
Leads rounds
Follows
Instruments
Equity
Founded
2008
Private fund assets
$243.1M
VC funds
4
Tracked investments
46
Unicorns
10
IPOs
3
Acquisitions
1

Team · 14 people

from the firm's website & curated & public directories
Jeffrey Lu· General Partner
Christoph Jost· Executive Officerin
Peter Waleczek· Executive Officerin

6 people who came through Flex Capital Partners went on to found or lead other companies.

What they invest in

from 37 of 46 portfolio companies

AI & Machine Learning ×18Enterprise Software ×18SaaS ×16Data & Infrastructure ×13Developer Tools ×11Cloud Computing ×6Fintech ×6Media & Entertainment ×4

HQs:United States×27Canada×1

Who they back

founder profiles across 17 portfolio companies
53%
solo founders
9 of 17 mapped founding teams
70%
repeat founders
of 20 founders with career history

Founding team size:solo founder×92 founders×13 founders×64+ founders×1

Where their founders studiedfrom 20 founders with education data

University of California, Berkeley ×3Stanford University ×2The Wharton School ×2University of Cambridge ×2

What their founders studiedfrom 21 founders with field-of-study data

Computer Science ×10Business & Management ×4Engineering ×3Mathematics & Statistics ×3

Where their founders worked beforefrom 20 founders with career history

Atomic ×2Boss Consulting SA ×2Facebook ×2Mercury Technologies, Inc. ×2

Accelerator rootsportfolio companies that came through a program

Y Combinator ×3

1 founders hold a PhD · 1 hold an MBA (of 21 with degree data)

Investments · 46 tracked

founders shown can be your intro path

By year:2023 · 12022 · 12021 · 22018 · 12014 · 16 dated

Applovin (Exit)applovin.comin𝕏NASDAQ: APPAug 2018

AppLovin operates a mobile advertising platform that helps businesses scale their products and marketing.

AdTechGamingMarketing TechPalo Alto, US

Adam Foroughi(Executive Officer, Director)inVictoria Valenzuela(Director Nominee; Chief Administrative & Legal Officer and Corporate Secretary)inEduardo Vivas(Director)Maggie Jin(Executive Officer)

BoardHerald Chen(Director)

Co-investorsAUTHENTIC VENTURESDniproNimble PartnersSpider CapitalStreamlined VenturesWebb Investment Network+1 more

Chimechime.comNASDAQ: CHYM

Chime is a US financial technology company offering fee-free checking and savings accounts, debit and credit-builder cards, early access to direct-deposited pay and no-fee overdraft cover.

San Francisco, US

Ryan King(Co-founder)inChris Britt(Co-founder & CEO)inKatherine Karas(Executive Officer)Matthew Newcomb(Executive Officer)in

BoardJim Feuille(Director)inShawn Carolan(Director)in

Co-investorsAmino CapitalAspect VenturesCathay InnovationClocktower VenturesCoatue ManagementCrosslink Capital+19 more

Adelphiadelphi.ai

Adelphi builds data middleware and discovery technology for intelligence and defense organizations, enabling secure collaboration and real-time access across fragmented, multi-domain data environments in compliance with security requirements.

AI & Machine LearningData & InfrastructureDefense TechEnterprise SoftwareGovTech

Co-investorsEssence Venture Capital

Agencygetagency.comin

Agency provides outsourced security and compliance operations for enterprise companies, combining forward-deployed U.S.-based compliance engineers with proprietary AI.

AI & Machine LearningCybersecurityEnterprise SoftwareSaaSNew York City, US

Amir Tarighat(Founder)inTyler Carbone(Founder)in

Co-investorsLeonis CapitalManchesterStory Group, LLCY Combinator

Airbyteairbyte.comin𝕏May 2021

Airbyte provides a context layer for agents and pipelines, enabling data connectivity and integration solutions.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US

Michel Tricot(Co-Founder & CEO)inJean Lafleur(Co-Founder & COO)inJean (John) Lafleur(Co-Founder and COO)in

BoardChetan Puttagunta(Benchmark partner and board member)

Co-investors8VCAccelCoatue ManagementKima VenturesRebel FundStandard Capital+6 more

Aircoveraircover.ai

Aircover is an AI-native platform for revenue and go-to-market teams that provides real-time in-call guidance, automated note-taking, conversation intelligence, and CRM syncing across sales, customer success, marketing, and customer experience functions.

AI & Machine LearningSaaSSales Tech

Andrew Levy(Chief Executive Officer)inAlex Young(Chief Technology Officer)inDave Levy(Chief Business Officer)

Co-investorsDefy Partnersf7 VenturesRidge Ventures

Allocationsallocations.comin𝕏

Allocations provides software and administration services for private equity fund formation and management, serving fund managers and investor syndicates seeking standardized SPV creation and operational support.

Enterprise SoftwareFintechSaaS

Kingsley Advani(Founder & CEO)in

Co-investorsHelios CapitalIrishAngelsSmart Partnership CapitalChainFund Capital

Amendmentamendment.appin𝕏

Amendment is a civic engagement platform where constituents write policy demands in their own words, co-sign neighbors' asks, and get candidates to respond on the record with positions tied to real bills.

GovTechSaaSSocial

Ampersandwithampersand.comin𝕏

Ampersand provides a declarative integration framework for building bi-directional, customer-configurable product integrations with third-party applications.

Developer ToolsEnterprise SoftwareSaaS

Lauren Long(Founder)in

Co-investors2.12 AngelsMatrixFlagship Pioneering

AngelListangellist.comin𝕏

AngelList's investor management platform provides tools for venture capital and private equity firms to streamline LP interactions, automate fund operations, and deliver reporting and portfolio updates through a branded digital experience.

Enterprise SoftwareFintechSaaS

Avlok Kohli(CEO)in

Co-investorsAccelerator VenturesAccompliceAltra VentureAngel Collective Opportunity FundAtacama VenturesBase Venture Management, Inc.+39 more

Arbital Healtharbitalhealth.comin𝕏

Arbital Health provides a platform for managing value-based care (VBC) contracts, unifying claims, utilization, benchmark, and contract data with actuarial tools, predictive models, and a conversational "Actuarial AI" for real-time performance monitoring and risk analysis.

AI & Machine LearningDigital HealthHealthtechSan Francisco, US

Brian Overstreet(Co-founder)inTravis May(Co-founder)in

BoardScott Rosen(Director)inIan Duncan(Director)

Co-investorsHealthy VenturesTRANSFORMATION CAPITALUnderdog Labs

Argusargus.systemsin𝕏

Argus Systems provides tools for collecting, curating, and annotating sensor data to accelerate robotics and physical AI training workflows.

AI & Machine LearningData & InfrastructureRoboticsSan Francisco, US

Lisa Yan(Founder)in

Co-investorsMaple VCNorwest Venture Partners

Atlanatlan.comin𝕏

Atlan builds a "context layer" and metadata management platform, including a data catalog, data governance tools, and a Context Lakehouse, that supplies enterprise data context to AI agents and data teams.

AI & Machine LearningData & InfrastructureEnterprise Software

Varun Banka(Founder)inPrukalpa ⚡(Founder)in

Co-investorsGICInsight PartnersPeak XV PartnersSalesforce VenturesSurgeWaterBridge Ventures+2 more

Atomic Labsatomic.vcin𝕏

Atomic is a venture capital and startup studio that partners with co-founders to build companies, combining experienced entrepreneurs and operational leaders across finance, legal, design, engineering, and talent functions.

Sector AgnosticSan Francisco, US

Jack Abraham(Managing Partner & CEO)inChester Ng(General Partner)inNat Disston(Partner)inFernando Luege(Executive Officer, Director)Michael Wolfgramm(Executive Officer, Director)Ralph Yarro(Executive Officer, Director)

Co-investorsNexus BayNimble Partners

Boltbolt.newin𝕏

Bolt is an AI-powered platform for building web apps and websites by chatting with AI, handling coding, testing, and refactoring automatically.

AI & Machine LearningCloud ComputingDeveloper Tools

Co-investorsEmergence Capital Partners

BrightRollbrightroll.comin𝕏May 2014

The page presents advertising and audience-reach solutions for advertisers and partners, positioned under the Yahoo brand.

AdTechConsumerMarketing TechMedia & EntertainmentSan Francisco, US

Ron Will(Chief Financial Officer)in

BoardAuren Hoffman(Director)inTod Sacerdoti(Executive Officer, Director)inDavid Welsh(Director)Rob Theis(Director)Jon Callaghan(Director)in

Co-investorsFelicis VenturesStratim CapitalUncork CapitalAdams Street PartnersForgePoint Capital

Browser Usebrowser-use.comin𝕏

Browser Use provides AI-powered browser automation infrastructure with anti-detection capabilities, CAPTCHA solving, and custom LLMs designed for web-based agent tasks at scale.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US

Magnus Müller(Co-Founder, CEO)inGregor Zunic(Co-founder, CTO)inGregor Žunič(Co-founder)in

Co-investorsA.Capital VenturesFelicis VenturesFjor FoundersLombardstreet VenturesOrange CollectiveSterling Road+5 more

Bungalowbungalow.comin𝕏

Bungalow offers a rental platform that helps renters find furnished rooms and homes with roommate matching, flexible leases, and cleaning services, while providing homeowners and single-family rental (SFR) investors with property management and technology tools.

ConsumerMarketplacesPropTechSaaS

Andrew Collins(CEO & Co-Founder)in

Co-investorsA-Rod CorpAtomicCoatue ManagementFlucas VenturesTranspose Platform ManagementUpHonest Capital+5 more

Calcal.com

Cal.com provides scheduling software for sales teams to coordinate client meetings, demos, and discovery calls, with features like round-robin assignment, collective events, routing forms, and automated reminders.

Developer ToolsFuture of WorkHR TechSaaSSales Tech

Blake Anderson(Cofounder)inHenry Langmack(Cofounder)Zach Yadegari(Cofounder)Bailey Pumfleet(Founder)in

Co-investorsiThink VCLodge FamilyObvious VenturesOSS CapitalBalaji Srinivasan

CaptivateIQcaptivateiq.comin𝕏

CaptivateIQ provides a modern platform for automating commission and compensation management, helping companies align incentives with revenue outcomes.

AI & Machine LearningEnterprise SoftwareFintechSaaSSales TechSan Francisco, US

Mark Schopmeyer(Founder/CEO)inHubert Wong(Founder/CTO)inConway Teng(Founder)in

Co-investorsAccelICONIQWorkday VenturesAmity VenturesBessemer Venture PartnersRecall Capital+7 more

Causalcausal.appin

Causal provides an extended planning and analysis (xP&A) platform for finance teams, offering budgeting, forecasting, scenario planning, and reporting that connects data across departments.

Enterprise SoftwareFintechSaaSClaymont, US

Taimur Abdaal(Executive Officer, Director, Promoter)inLukas Koebis(Executive Officer, Director, Promoter)

Co-investorsAccelCoatue Management645 VenturesAmity VenturesGlasswing VenturesTAU Ventures

CodeRabbitcoderabbit.aiin𝕏

CodeRabbit provides AI-powered code review tools for developers to improve software quality and efficiency in development workflows.

AI & Machine LearningDeveloper ToolsWalnut Creek, US

Harjot Gill(Executive Officer, Director)inGuritfaq Singh(Executive Officer, Director)inVishavjeet Kaur(Executive Officer)Alex Berkenkamp(Executive Officer)

Co-investorsCRV (Charles River Ventures)Foothill VenturesHarmony PartnersNVenturesScale Venture PartnersAtomico+5 more

Datavantdatavant.comin

Datavant Connect is a data connectivity platform that enables healthcare and life sciences organizations to share and link datasets while maintaining privacy compliance through tokenization technology.

AI & Machine LearningData & InfrastructureDigital HealthEnterprise SoftwareHealthtech

Kyle Armbrester(Chief Executive Officer)in

Co-investorsGrand VenturesHealth Catalyst CapitalSixth StreetTensility Venture PartnersTRANSFORMATION CAPITALJohnson & Johnson Innovation – JJDC

Gorgiasgorgias.comin𝕏

Gorgias provides a helpdesk platform for customer support agents, serving e-commerce merchants and brands.

AI & Machine LearningData & InfrastructureE-commerceRetail TechSaaSSan Francisco, US

BoardAlex PlugaruRomain Lapeyre(Founder)in

Co-investorsAlvenAmplify PartnersConvergeCRV (Charles River Ventures)Forerunner VenturesGreycroft+8 more

Gwerngwern.net

Personal website of writer Gwern Branwen featuring essays and research notes on artificial intelligence, psychology, and statistics.

Media & Entertainment

Gwern Branwen

Hims & Hershims.com

US direct-to-consumer telehealth company selling prescription and OTC treatments online by subscription; NYSE-listed as HIMS.

Jack Abraham(Co-founder)in

Co-investors7GC & Co8VCA-Rod CorpAtomicBrentwood AssociatesCAVU Consumer Partners+17 more

Juniper Squarejunipersquare.comin𝕏

Juniper Square provides an investor management platform for private investment firms, combining an investor portal, investor CRM, and reporting tools to manage investments from onboarding through final sale.

AI & Machine LearningEnterprise SoftwareFintechPropTechSaaSSan Francisco, US

Alex Robinson(Founder)inAdam Ginsburg(Founder)inYonas Fisseha(Executive Officer, Director)inEric Jenny(Executive Officer)in

BoardNick Shalek(Director)inElliot Geidt(Director)in

Co-investorsFelicis VenturesOVO FundRedpoint VenturesZigg CapitalBlue Owl CapitalFifth Wall+3 more

liveramp.com/ (opens in new tab)liveramp.cominAcquired

LiveRamp Ventures is the investment arm of LiveRamp, backing startups building in AI-driven marketing, data collaboration standards, customer personalization, premium internet advertising, programmatic efficiency, and identity resolution.

AdTechData & InfrastructureMarketing TechSan Francisco, US

Scott Howe(CEO)in

Co-investorsAccelerator VenturesCanaan PartnersDnx VenturesFelicis VenturesLG Technology VenturesNFX+2 more

Mercurymercury.comin𝕏

Mercury is an investor database listing venture capital investors and their sector focus areas.

Data & InfrastructureEnterprise SoftwareFintechSaaSSector Agnostic

Immad Akhund(Founder & CEO)inJason Zhang(Co-Founder and Chief Operating Officer)inMax Tagher(Co-Founder and Chief Technology Officer)in

Co-investors500 GlobalAndreessen HorowitzAngel Collective Opportunity FundBetter Tomorrow VenturesBuilders + BackersChapter One+39 more

Pauljohnsonpauljohnson.aiin𝕏

Personal site of Paul Johnson, founder of telehealth company Lemonaid Health (sold for $400M) and now General Partner and CEO of venture fund Flex Capital.

Future of WorkSaaSSan Francisco, US

Paul Johnson(General Partner & CEO, Flex Capital; Founder of Lemonaid Health)in

Perplexityperplexity.aiMar 2023

An AI-powered answer engine providing accurate, trusted, and real-time answers to questions.

San Francisco, US

Andrew D. Konwinski(Executive Officer, Director)Dzianis Yarats(Director)Aravind Srinivas Lakshminarayanan(Director, Executive Officer)Aravind Srinivas(Co-founder & CEO)inDenis Yarats(Co-founder & CTO)

BoardPeter Sonsini(Director)

Co-investors359 Capital7BC Venture CapitalAccelAdvaita CapitalAIX VenturesArrington Capital+49 more

Protegewithprotege.aiin𝕏

Protege aggregates and curates real-world data from diverse sources to create AI-ready datasets for model developers.

AI & Machine LearningData & Infrastructure

Bobby Samuelsin

Co-investorsAndreessen HorowitzCRV (Charles River Ventures)FootworkThe MBA FundBloomberg Beta

Regalregal.ioin

Regal provides an AI agent platform for enterprises to automate customer communications across inbound and outbound channels.

AI & Machine LearningEnterprise SoftwareSaaS

Alex Levin(CEO and Co-Founder)inRebecca(Co-Founder)

Co-investorsEntrée CapitalFrontline VenturesHomebrewInspired Capital

Replitreplit.comin𝕏Mar 2022

Replit is a platform for software development that aims to make app creation accessible to non-programmers through intuitive tools and AI agents.

AI & Machine LearningCloud ComputingCreator EconomyDeveloper ToolsEdTechEnterprise SoftwareSan Francisco, US

Haya Abdalla(Founder)inAmjad Masad(Co-founder & CEO)inHaya Odeh(Co-Founder, Design)inLuis Héctor Chávez(CTO)

Co-investors137 Ventures7BC Venture CapitalA.Capital VenturesAbstract VenturesAllied Venture PartnersAlumni Ventures+34 more

Safe graphsafegraph.comin𝕏

SafeGraph builds and maintains a global dataset of information about physical places, updated monthly, for application developers and analytics teams.

Data & InfrastructureEnterprise SoftwareRetail TechSaaSDenver, US

Auren Hoffman(Executive Officer, Director)inBrent Perez(Executive Officer)inJason Richmanin

BoardCharles Songhurst(Director)Alexander Rosen(Director)in

Co-investorsAkkadian VenturesClocktower VenturesCorazon CapitalDnx Venturesmark vcRidge Ventures+3 more

Stackblitzstackblitz.comin𝕏

StackBlitz provides a browser-based development environment for creating and launching web applications, with code execution happening entirely within the user's browser using WebAssembly technology.

Cloud ComputingDeveloper ToolsEnterprise SoftwareSan Francisco, US

Eric Simons(CEO & Co-Founder)inAlbert Pai(CTO & Co-Founder)inAlexander Berger(Chief Operating Officer)inBryan Adams(Vice President of Sales)inMitchell Wright(Head of Growth Marketing and Data)inHyllarie Colyer(Head of People)in

Co-investorsConvictionEmergence CapitalGreylock PartnersGV (Google Ventures)Insight PartnersMadrona Venture Group+3 more

Summationsummation.net𝕏

Summation is a platform or service created by Auren Hoffman, the CEO of SafeGraph and former CEO of LiveRamp, focused on promoting critical thinking.

Media & EntertainmentSector Agnostic

Auren Hoffman(CEO)in

Supabasesupabase.comin𝕏

Supabase is a fully managed PostgreSQL backend platform that integrates with AI builders like Claude, Lovable, and Bolt to enable rapid development of production applications.

Cloud ComputingData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US

Paul Copplestone(Founder)inAnt Wilson(Founder)inPAUL COPPLESTONE(Executive Officer, Director, Promoter)in

BoardCARYN MAROONEY(Director)in

Co-investorsBase Case CapitalAccelBerkeley FrontierChapter OneCoatue ManagementCraft Ventures+13 more

Tailscaletailscale.comin𝕏

Tailscale provides secure connectivity infrastructure.

Cloud ComputingCybersecurityDeveloper ToolsToronto, CA

Avery Pennarun(CEO)inBrad Fitzpatrick(Founder)inDavid Crawshaw(Founder)in

Co-investorsAccelAvenir Growth CapitalCRV (Charles River Ventures)Cyber Mentor FundHeavybitInsight Partners+7 more

uBiome6sense.com

Account engagement platform helping B2B organizations achieve predictable revenue growth.

Amanda Kahlow(Founder)inJason Zintakin

Co-investorsB Capital GroupB4 CapitalBase Venture Management, Inc.Battery VenturesField VenturesHarmony Partners+12 more

Vercelvercel.comin𝕏Oct 2021

Vercel is an infrastructure platform for building and deploying applications, with emerging support for agentic capabilities that allow AI agents and humans to collaborate in software development.

AI & Machine LearningCloud ComputingDeveloper ToolsSan Francisco, US

Guillermo Rauch(Founder & CEO)in

BoardGeoff Lewis(Director)inDaniel Levine(Director)inReid Christian(Director)in

Co-investors8VCAccelBedrockBeyond CapitalCoatue ManagementCold Start Ventures+26 more

Worldofdaasworldofdaas.com

World of DaaS is a curated membership community and annual summit for founders and CEOs of Data-as-a-Service companies, typically those with $5M–$50M ARR.

Data & InfrastructureFuture of WorkMedia & Entertainment

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

ArcusBestomerToma

Exits · 4

3 IPOs · 1 acquisitions · showing 2

Applovin (Exit)NASDAQ: APPChimeNASDAQ: CHYM

Portfolio news

latest coverage across their companies

Frequently asked questions

How many investments has Flex Capital Partners made?
Flex Capital Partners has 46 tracked investments, 4 of which have exited.
What stage does Flex Capital Partners invest at?
Flex Capital Partners invests at the Pre-Seed, Seed, Series A stages.
What is Flex Capital Partners's typical check size?
Flex Capital Partners typically writes checks of $500K – $2M.
What sectors does Flex Capital Partners focus on?
Flex Capital Partners focuses on AI & Machine Learning, SaaS, Sector Agnostic.
Where is Flex Capital Partners located?
Flex Capital Partners is headquartered in San Francisco, US.
Does Flex Capital Partners lead rounds?
Flex Capital Partners typically participates in rounds rather than leading them.
Who does Flex Capital Partners co-invest with?
Flex Capital Partners most often shares deals with Coatue Management, Accel, CRV (Charles River Ventures), among 237 tracked co-investors.

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