| Gravel AIOther | Other | London, United Kingdom | — | gravelai.com |
| Gravity AIB2B | B2B | New York City, United States | — | gravity-ai.com |
| GreatHornB2B | B2B | Belmont, United States | Kevin O'Brien | greathorn.com |
| Green Canopy NODEIndustrials | Industrials | Seattle, United States | Aaron Fairchild | greencanopynode.com |
| Green Eye TechnologyB2B | B2B | Tel Aviv, Israel | Ran Dor | greeneye.ag |
| GreendeckB2B | B2B | London, United Kingdom | Prakhar Pratyush | greendeck.co |
| GridwiseB2B | B2B | Pittsburgh, United States | Ryan Green | gridwise.io |
| Grips IntelligenceB2B | B2B | Berlin, Germany | — | gripsintelligence.com |
| GrooverOther | Other | Vauville, France | Romain Palmieri | groover.co |
| Ground AIOther | Other | New York City, United States | — | joinground.com |
| GrowthMatchB2B | B2B | Austin, United States | — | growthmatch.com |
| Grubbly FarmsIndustrials | Industrials | Norcross, United States | Sean Warner | grubblyfarms.com |
| GuamaFintech | Fintech | Medellin, Colombia | — | guamacard.com |
| GudeaB2B | B2B | Baltimore, United States | — | gudea.ai |
| GYANTB2B | B2B | San Francisco, United States | Stefan Behrens | gyant.com |
| H2Ok InnovationsOther | Other | Allston, United States | — | h2okinnovations.com |
| HAAS AlertB2B | B2B | Chicago, United States | Chas Jewett | haasalert.com |
| haboo moneyFintech | Fintech | London, United Kingdom | — | haboomoney.com |
| HackajobB2B | B2B | London, United Kingdom | Mark Chaffey | hackajob.co |
| HackMDB2B | B2B | Taipei, Taiwan | Yukai Chou | hackmd.io |
| HacwareB2B | B2B | Dallas, United States | Tiffany Ricks | hacware.com |
| HaekkaB2B | B2B | Oak Creek, United States | Jeff Haynie | haekka.com |
| Haiku DeckConsumer | Consumer | Seattle, United States | Adam Tratt | haikudeck.com |
| HalionIndustrials | Industrials | Kitchener, Canada | — | halion.ca |
| HalpB2B | B2B | Boulder, United States | Trent Krupp | halp.com |
| HammerheadIndustrials | Industrials | New York City, United States | Brian Oblinger | hammerhead.io |
| hamprFintech | Fintech | Lafayette, United States | Leah Caplanis | tryhampr.com |
| Handl HealthHealthcare | Healthcare | Cerritos, United States | — | gohandlhealth.com |
| Happiest OursOther | Other | Corona, United States | — | happiestours.com |
| HapticOther | Other | Austin, United States | Daniel Node-Langlois | knocki.com |
| HapWareHealthcare | Healthcare | Golden, United States | — | hapware.com |
| HarvestB2B | B2B | Monroe, United States | — | goharvest.ai |
| Harvest PlatformB2B | B2B | New York City, United States | — | growmyharvest.com |
| HatchproofB2B | B2B | San Francisco, United States | — | hatchproof.com |
| HavenHealthcare | Healthcare | Studio City, United States | — | feelslikefloating.com |
| Haven ConnectB2B | B2B | Berkeley, United States | Heather Hargrove | havenconnect.com |
| HawthorneOther | Other | New York City, United States | — | hawthorne.co |
| HDataB2B | B2B | Joliet, United States | — | hdata.us |
| HealthieHealthcare | Healthcare | New York City, United States | Erica Jain | gethealthie.com |
| healthKERIB2B | B2B | Orem, United States | — | healthkeri.com |
| HeavyConnectIndustrials | Industrials | Salinas, United States | — | heavyconnect.com |
| Heex TechnologiesOther | Other | Paris, France | Thibault Surer | heex.io |
| Heights LabsB2B | B2B | Valley Stream, United States | — | heightslabs.com |
| HelioRecIndustrials | Industrials | Nantes, France | — | heliorec.com |
| HelloticketsOther | Other | Madrid, Spain | — | hellotickets.com |
| Help ScoutOther | Other | Cambridge, United States | Nick Francis | helpscout.com |
| HerdB2B | B2B | San Francisco, United States | — | theherdapp.com |
| hevaB2B | B2B | New York City, United States | — | heva.co |
| hexafarmsOther | Other | Saarbrücken, Germany | Ur Danziger | hexafarms.com |
| hey freyaOther | Other | Middletown, United States | — | heyfreya.co |