Fundraising Fox

Mat Vogels

InvestorFounder

Investor at Harpoon Ventures · Founder/CEO at Rally Tennis

Denver Metropolitan Area

Writes $100K – $5M checks

FoundedRally Tennis · YC

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

Education

  1. Y Combinator
  2. University of Colorado DenverFinance, Economics2009 — 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

Alexa M. Monti
Advisor at Harpoon Ventures
Andrew Couillard
Investor at Harpoon Ventures
Austin Hays
Partner at Harpoon Ventures
Chris O'Connor
Partner at Harpoon Ventures
Jake Windle
Investor at Harpoon Ventures
Jeff Torrance
Partner at Harpoon Ventures
Jimmy Yun
Partner at Harpoon Ventures
Larsen
Investor at Harpoon Ventures

Frequently asked questions

Where does Mat Vogels work?
Mat Vogels is Investor at Harpoon Ventures and Founder/CEO at Rally Tennis.
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.

Founder mafias

Y Combinator mafia8,732

Also came through, then founded or led a company.

Sam AltmanPresidentFounded LooptJessica LivingstonFounder, RetiredFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded CoinbaseMatt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1

+ 8,725 more

Y Combinator mafia4,701

Also came through, then founded or led a company.

Darius "Bubs" MonsefS24Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3Oleg RogynskyyEntrepreneurship/Entrepreneurial StudiesFounded UFORCE Acquired +2Magnus HambletonFounded Founders Pledge +2IanFounded Immunity Project +2Guillaume LuccisanoDid Y Combinator 3 timesFounded Yuma AI +2

+ 4,694 more

Webflow mafia7

Also came through, then founded or led a company.

Julian ShapiroVP of MarketingFounded Julian +1Jason OkraProductFounded Wayline +1Neal O'GradyCopywriter/Content MarketerFounded Demand CurveJacob GillespieSenior Software EngineerFounded DepotLucas EwingSoftware EngineerFounded LilacBryant ChouCo-founderFounded Ploy

University of Colorado Denver mafia3

Also came through, then founded or led a company.

Tripp WallBA/MAFounded Alfalfa's MarketJon WrightMBAFounded Govly

Julian Capital mafia2

Also came through, then founded or led a company.

Julian ShapiroManaging PartnerFounded Julian +1

Same school

Also attended Y Combinator2,000

Maroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesVictor SantosVictor Scout at One Way VenturesSwapnil JainCEO, Observe.AI at EMERGENT VENTURESChase AdamPartner at Very Serious VenturesMuzzammil (MZ) ZaveriPartner at Audacious Ventures backing ambitious early-stage founders

+ 1,994 more

Also attended University of Colorado Denver19

Rebecca EngelHead of Platform at LegalTechKelsey FloresChief Financial Officer at Slipstream InvestorsArlen MeyersAdvisory Board at InVitro CapitalScott FordManaging Director at OpenAir Equity PartnersMatthew BarryPartner, Impact at Learn CapitalSteve KimPartner, CFO and CCO at Arrowroot Capital

+ 13 more

Shared employers

Also worked at Julian.capital4

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

Also worked at Webflow, Inc.12

Mischa VaughnHead of Content at Felicis VenturesAlex NicholsInvestor at CapitalGLinda TongCEO, Webflow at Operator CollectiveVishesh SharmaPrincipal, India at Jungle VenturesUtkarsh SengarEngineering Advisor at Modern TechnicalSue XuManaging Partner at Amino Capital

+ 6 more

Also worked at PaySimple2

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