| PressOne AfricaOther | Other | Wilmington, United States | — | pressone.africa |
| PretredIndustrials | Industrials | Aurora, United States | — | pretred.com |
| PrettyDataB2B | B2B | Dover, United States | — | prettydata.co |
| PrevetaB2B | B2B | Redondo Beach, United States | — | preveta.com |
| Prewitt RidgeOther | Other | Los Angeles, United States | — | sysgit.io |
| PrismFintech | Fintech | Fairmont, United States | — | prismmoney.com |
| ProcessBoltB2B | B2B | Minneapolis, United States | — | processbolt.com |
| ProcessOutFintech | Fintech | New York City, United States | Guillaume Vives | processout.com |
| ProduxB2B | B2B | Kottayam, India | — | produx.ai |
| PROFITFintech | Fintech | Nutley, United States | — | swipedom.com |
| ProGradB2B | B2B | London, United Kingdom | — | prograd.uk |
| Project AdmissionOther | Other | Nashville, United States | — | projectadmission.com |
| Project CanaryOther | Other | Denver, United States | Chris Romer | projectcanary.com |
| Prolific WorksOther | Other | Boston, United States | — | prolificworks.com |
| PromexB2B | B2B | Dover, United States | — | promex.energy |
| PromoboxxOther | Other | Boston, United States | Ben Carcio | promoboxx.com |
| Propagate VenturesIndustrials | Industrials | Hudson, United States | Ethan Steinberg | propagateventures.com |
| PropinB2B | B2B | Or Yehuda, Israel | — | propin.ai |
| PropioFintech | Fintech | Washington, United States | — | joinpropio.com |
| ProsperoB2B | B2B | Seattle, United States | — | theprospero.ai |
| PsycAppsOther | Other | London, United Kingdom | Elias Tsakas | psycapps.com |
| Pulse Charter ConnectOther | Other | Chicago, United States | — | pulsecharterconnect.com |
| Pulse LabsOther | Other | Seattle, United States | Karl Acquire | pulselabs.ai |
| Pulse SpaceOther | Other | Bellevue, United States | — | pulsespace.com |
| QeepsakeConsumer | Consumer | Waltham, United States | Jake Kahana | qeepsake.com |
| QMS2GOIndustrials | Industrials | Ruston, United States | — | qms2go.com |
| QoveryConsumer | Consumer | Paris, France | Romaric Philogène | qovery.com |
| QualifiB2B | B2B | Noblesville, United States | Josh Tolan | qualifi.hr |
| qualiTEASB2B | B2B | St. John's, Canada | — | qualiteas.ca |
| QuanTemplateOther | Other | New York City, United States | Daniel Summerfield | quantemplate.com |
| QuantiveFintech | Fintech | Sofia, Bulgaria | Radoslav Georgiev | quantive.com |
| Queen of RawOther | Other | New York City, United States | Stephanie Benedetto | aloqia.com |
| QuotissConsumer | Consumer | Warsaw, Poland | Dimitri Doronin | quotiss.com |
| QuSecureFintech | Fintech | San Mateo, United States | Skip Sanzeri | qusecure.com |
| R3 ScoreFintech | Fintech | Baltimore, United States | Laurin Leonard | r3score.com |
| Rad.Other | Other | New York City, United States | Gurbaksh Chahal | rad.live |
| RaddConsumer | Consumer | Tel Aviv, Israel | — | raddcontent.com |
| Radish HealthB2B | B2B | New York City, United States | Jacob Blackman | radish.health |
| RaenestFintech | Fintech | Lagos, Nigeria | Dickson Nsofor | raenest.com |
| Rainbird TechnologiesB2B | B2B | Norwich, United Kingdom | Ben Taylor | rainbird.ai |
| Rainwalk TechnologyOther | Other | Columbia, United States | — | rainwalkpetinsurance.com |
| RainwayConsumer | Consumer | Seattle, United States | Andrew Sampson | rainway.io |
| RAKE MLOther | Other | Weston, United States | — | rakeml.com |
| RallyFintech | Fintech | Buffalo, United States | — | rallypwr.com |
| RallywareConsumer | Consumer | Mountain View, United States | Vladimir Blagojevic | rallyware.com |
| RanaOther | Other | London, United Kingdom | — | ranaenergy.co |
| RangeForceB2B | B2B | White Plains, United States | Taavi Must | vequrity.com |
| RankuOther | Other | Seattle, United States | — | goranku.com |
| Rapid RMSFintech | Fintech | Chattanooga, United States | — | rapidrms.com |
| RasaB2B | B2B | San Francisco, United States | Alan Nichol | rasa.com |