Fundraising Fox

Mat Vogels

InvestorFounder

Investor at Harpoon Ventures · Pirate at Black Flag · Founder/CEO at Rally Tennis

Denver Metropolitan Area

Writes $100K – $5M checks

FoundedRally Tennis · YC

Find your path to Mat

10,472 people in our graph share verified history with Mat — schools, employers, funds. One of them is your warm intro.

Mischa VaughnunlockedMat: together at Webflow
×11Mat: together at Y Combinator

About

Mat Vogels is a designer-founder-investor who builds products (VC Sheet, Pineapple List, Pitch Colorado), focuses on infrastructure tools for the startup ecosystem, and brings design expertise to craft conversion-focused narratives.

Invests in

AI & Machine LearningBiotechClimate TechCybersecurityDeep TechDefense TechEnergyHardwareNew MaterialsRoboticsSemiconductors

Founder/CEO at Rally TennisYC W17

Intro paths

YC

Mat went through Y Combinator (Winter 2017) — any YC alum in your network can reach them through the YC community.

→

In turn, Mat can intro founders to Rally Tennis's investors below.

Rally Tennis's investors · 1

Y CombinatorSan Francisco · $500K checks · since 2017

Experience

  1. Harpoon VenturesInvestor & Special Projectscurrent2025 — present
  2. Black FlagPiratecurrent2025 — presentThe Sea
  3. Julian.capitalPartner2022 — 2025
  4. Rally TennisCo-Founder & CEO2021 — 2022Denver, Colorado, United States
  5. ZestfulCo-Founder and CEO2016 — 2021Denver Metropolitan Area
  6. Webflow, Inc.Product & Web Designer2014 — 2016Mountain View, CA
  7. PaySimpleProduct & Lead Web Designer2012 — 2014Denver Metropolitan Area
  8. Equus SoftwareBusiness Analyst2011 — 2012
  9. ScottradeIntern2009 — 2011

Skills & more

SEO17Digital Marketing20Social Media Marketing30Brand Management3Graphic Design13Public Speaking3Networking7Communication3WritingProject Management5Project Planning1Agile Methodologies
+11 moreOnline AdvertisingAdobe Creative SuiteMarketingManagementSalesforce.comEntrepreneurshipMarketing StrategyStart-upsE-commerceOnline MarketingLeadership

Languages English · Spanish

From Mat's professional profile.

Colleagues at Harpoon Ventures

Andrew Couillard
Investor at Harpoon Ventures
Austin Hays
Partner at Harpoon Ventures
Jake Windle
Investor at Harpoon Ventures
Jeff Torrance
Partner at Harpoon Ventures
Larsen
Investor at Harpoon Ventures
Larsen Jensen
General Partner at Harpoon Ventures
Matias Zorrilla
Investor at Harpoon Ventures
Riley Loftus
Investor at Harpoon Ventures

Frequently asked questions

Who is Mat Vogels?
Mat Vogels is a designer-founder-investor who builds products (VC Sheet, Pineapple List, Pitch Colorado), focuses on infrastructure tools for the startup ecosystem, and brings design expertise to craft conversion-focused narratives.
Where does Mat Vogels work?
Mat Vogels is Founder/CEO of Rally Tennis and Investor at Harpoon Ventures.
What does Mat Vogels invest in?
Mat Vogels invests in AI & Machine Learning, Biotech, Climate Tech, Cybersecurity, Deep Tech, Defense Tech, Energy, Hardware, New Materials, Robotics, Semiconductors.
What check size does Mat Vogels write?
Mat Vogels typically writes checks of $100K – $5M.
What companies did Mat Vogels found?
Mat Vogels founded Rally Tennis.
Where did Mat Vogels go to school?
Mat Vogels studied at Y Combinator; University of Colorado Denver (Finance, Economics).

Founder mafias

Y Combinator mafia10,218

Also came through, then founded or led a company.

Sam AltmanPresidentFounded Tools for Humanity +3Garry TanPresident & CEOFounded Y Combinator +1Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianAmbassador to the EastFounded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded Paradigm +1

+ 10,211 more

University of Colorado Denver mafia19

Also came through, then founded or led a company.

Kevin RiddlebergerMBAFounded Moiraclub +1Tyler HugginsMaster of Science (MS)Founded Meati Foods +1Chris DiedrichMasters of Public AdministrationFounded Covered +1Tripp WallIC- MAFounded Alfalfa's MarketJon WrightMBAFounded GovlyDr Jennifer Rucci, MDPsychiatry Residency ProgramFounded Eventus WholeHealth

+ 12 more

Webflow mafia10

Also came through, then founded or led a company.

Julian ShapiroVP of MarketingFounded Julian +1Jason OkraProductFounded Wayline +1Chetan SharmaData ScienceFounded Saltbox +1Neal O'GradyCopywriter/Content MarketerFounded Demand CurveJacob GillespieSenior Software EngineerFounded DepotLucas EwingSoftware EngineerFounded Lilac

+ 3 more

Harpoon Ventures mafia2

Also came through, then founded or led a company.

David TearseInvestorFounded Karman Industries

Julian Capital mafia2

Also came through, then founded or led a company.

Julian ShapiroManaging PartnerFounded Julian +1

Same school

Also attended Y Combinator2,000

Ryan SheaCo-founder of Blockstack (Stacks)Suhail DoshiFounder of Mixpanel; founder of ParticleArhaan A.Deeptech Fellow at Clear VenturesAkshat GoenkaInvestor at Moonfire VenturesJon XuGeneral Partner at Y CombinatorChris GoldaGeneral Partner at Y Combinator

+ 1,994 more

Also attended University of Colorado Denver41

Adam SanchezFinance and Operations Associate at Type One VenturesRebecca EngelHead of Platform at LegalTechKelsey FloresChief Financial Officer at Slipstream InvestorsArlen MeyersAdvisory Board at InVitro CapitalScott FordManaging Director at OpenAir Equity PartnersSteve KimPartner, CFO and CCO at Arrowroot Capital

+ 35 more

Shared employers

Also worked at Julian.capital5

Vincent XueAnalyst at Golden VenturesSruthi SivanandanAssociate at Forum VenturesJohn ForbesInvestor, Deep Checks at Julian CapitalJulian ShapiroManaging Partner at Julian CapitalJacob JacksonPartner, Deep Checks at Julian Capital

Also worked at Webflow, Inc.17

Mischa VaughnHead of Content at Felicis VenturesLinda TongCEO, Webflow at Operator CollectiveVishesh SharmaPrincipal, India at Jungle VenturesUtkarsh SengarEngineering Advisor at Modern TechnicalSue XuManaging Partner at Amino CapitalJulian ShapiroManaging Partner at Julian Capital

+ 11 more

Also worked at PaySimple2

Danny CarusoManager, Programs & Investments at Caruso VenturesJeff GardnerInvestor at SpringTime Ventures