| PanelsB2B | B2B | San Francisco, United States | | usepanels.com |
| PangolinB2B | B2B | San Francisco, United States | | pangolin.net |
| PanOpenEducation | Education | New York City, United States | Dhawal Shah | panopen.com |
| PantaFintech | Fintech | — | | pantainsure.com |
| PapayaIndustrials | Industrials | — | — | papayadash.com |
| PaperstackOther | Other | Toronto, Canada | — | paperstack.ca |
| PaprB2B | B2B | Dublin, United States | Arvid Lunnemark | papr.ai |
| ParabolB2B | B2B | Brooklyn, United States | Jordan Husney | parabol.co |
| ParachuteHealthcare | Healthcare | — | | parachute-ai.com |
| ParalogConsumer | Consumer | Montréal, Canada | — | paralog.ai |
| ParametricIndustrials | Industrials | — | | parametric.company |
| ParaQueryB2B | B2B | New York, United States | | paraquery.com |
| Parasol PlatformsB2B | B2B | City of Newark, United States | — | parasolplatforms.com |
| PARES AIOther | Other | San Francisco, United States | | pares.ai |
| ParlaHealthcare | Healthcare | — | — | myparla.com |
| Parlay FinanceB2B | B2B | Alexandria, United States | — | parlay.finance |
| ParlevelFintech | Fintech | San Antonio, United States | Ryan Wilcox | parlevelsystems.com |
| ParrotConsumer | Consumer | San Francisco, United States | | parrotapp.com |
| ParseB2B | B2B | — | | parse.bot |
| ParsempoOther | Other | New York City, United States | — | parsempo.com |
| ParsimoniB2B | B2B | Pau, France | — | parsimoni.co |
| PartsimonyOther | Other | Brooklyn, United States | — | partsimony.com |
| PartySlateOther | Other | Chicago, United States | Julie Roth Novack | partyslate.com |
| Pass It DownFintech | Fintech | Chattanooga, United States | Nick Hasty | passitdown.com |
| PassbaseB2B | B2B | — | Felix Beckenbauer | passbase.com |
| PassFortFintech | Fintech | — | Donald Gillies | passfort.com |
| Patent WatchB2B | B2B | Toronto, Canada | | patentwatch.ai |
| PathgatherB2B | B2B | Sacramento, United States | Eric Encoding | pathgather.com |
| PathSpotIndustrials | Industrials | New York City, United States | Christine Schindler | pathspot.com |
| Patient IOConsumer | Consumer | Austin, United States | — | patientio.com |
| Patientdesk.aiHealthcare | Healthcare | — | | patientdesk.ai |
| Patients Know BestHealthcare | Healthcare | — | Mohammad Al-Ubaydli | patientsknowbest.com |
| PatreonConsumer | Consumer | — | Jack Conte | patreon.com |
| PauaFintech | Fintech | — | Catherine Kelly | pauatech.com |
| Pax HistoriaConsumer | Consumer | — | | paxhistoria.co |
| PayAngelFintech | Fintech | Dartford, United Kingdom | Nana Yaw Otchere | payangel.com |
| PaynaB2B | B2B | — | Aaron Chen | payna.com |
| PeakMetricsB2B | B2B | Los Angeles, United States | Nick Ronnei | peakmetrics.com |
| Pear SuiteHealthcare | Healthcare | Seattle, United States | Nikki Lamba | pearsuite.com |
| Peas FinancialB2B | B2B | Cave Springs, United States | — | peas.money |
| Peec.aiB2B | B2B | Germany | — | peec.ai |
| Peeq IndustriesOther | Other | Omaha, United States | — | peeqpro.com |
| Peer RoboticsB2B | B2B | New Haven, United States | Sarthak Srinivas | peerrobotics.ai |
| PeerbyIndustrials | Industrials | Amsterdam, Netherlands | Daan Weddepohl | peerby.com |
| Pelikan MobilityOther | Other | Paris, France | — | pelikan-mobility.com |
| Pelikan MobilityIndustrials | Industrials | — | — | pelikan-mobility.com |
| Penny FinanceFintech | Fintech | Boston, United States | Crissi Cole | penny-finance.com |
| PenPal SchoolsEducation | Education | Austin, United States | Aaron Feuer | penpalschools.com |
| PentoB2B | B2B | — | Jesper Mathiesen | pento.io |
| PeonyB2B | B2B | — | — | peony.ink |