| Pika InsightsB2B | B2B | Lagos, Nigeria | — | pikainsights.com |
| Pillar TechnologiesFintech | Fintech | New York City, United States | Aviad Eilam | pillar.tech |
| PillPackHealthcare | Healthcare | Manchester, United States | TJ Parker | pillpack.com |
| PilotOther | Other | New York City, United States | Pilot Fiber - UNKNOWN | pilotfiber.com |
| PipedreamOther | Other | Austin, United States | Dylan Sather | pipedreamlabs.co |
| Pipeline EquityB2B | B2B | Denver, United States | Katica Roy | pipelineequity.com |
| PippaOther | Other | New York City, United States | — | pippa.io |
| Pitch AeronauticsOther | Other | Boise, United States | — | pitchaero.com |
| PitchMeOther | Other | London, United Kingdom | Bushra Burge | pitchme.co |
| PitstopB2B | B2B | Toronto, Canada | Shiva Bhatt | pitstopconnect.com |
| PixxelIndustrials | Industrials | Palo Alto, United States | Awais Ahmed | pixxel.space |
| PlacemeterFintech | Fintech | New York City, United States | Alexandre Alahi | placemeter.com |
| PlacesterB2B | B2B | Boston, United States | Matt Barba | placester.com |
| PlanableOther | Other | London, United Kingdom | Vlad Calus | planable.io |
| PLANETARIANSOther | Other | Palo Alto, United States | Anastasia Tkacheva | planetarians.com |
| PlanetteIndustrials | Industrials | Fremont, United States | — | planette.ai |
| PlannlyOther | Other | San Francisco, United States | — | plannlyhealth.com |
| PlatedOther | Other | New York City, United States | Nick Taranto | plated.com |
| PlayCanvasConsumer | Consumer | London, United Kingdom | Will Eastcott | playcanvas.com |
| PlayedFintech | Fintech | London, United Kingdom | — | played.co |
| Player's HealthFintech | Fintech | Minneapolis, United States | Tyrre Burks | playershealth.com |
| PlayerDataOther | Other | Edinburgh, United Kingdom | Fraser Robertson | playerdata.co.uk |
| Plexis AIB2B | B2B | Dover, United States | — | plexis.ai |
| PlexusOther | Other | Omaha, United States | — | plexusaero.space |
| PlutoOther | Other | Boston, United States | — | heypluto.com |
| PM2Consumer | Consumer | New York City, United States | Unitech Alexandre | pm2.io |
| Pod PeopleB2B | B2B | Los Angeles, United States | Rachael King | podpeople.com |
| PointzOther | Other | Providence, United States | — | bikepointz.com |
| PollyB2B | B2B | Issaquah, United States | Bilal Aijazi | polly.ai |
| PolygonOther | Other | Berkeley, United States | — | hellopolygon.com |
| PolymorphConsumer | Consumer | San Francisco, United States | — | |
| PolyXLabsIndustrials | Industrials | Budapest, Hungary | — | poliloop.com |
| PopComOther | Other | Columbus, United States | Dawn Dickson | popcom.shop |
| PoppB2B | B2B | London, United Kingdom | — | joinpopp.com |
| PoppinsOther | Other | Paris, France | — | poppins.io |
| PoppyOther | Other | Washington, United States | — | poppyflowers.com |
| Portabl.coFintech | Fintech | London, United Kingdom | Darko Tomic | portabl.co |
| PortFFintech | Fintech | London, United Kingdom | — | portf.io |
| Post-QuantumFintech | Fintech | London, United Kingdom | Andersen Cheng | post-quantum.com |
| PowerBox TechnologyIndustrials | Industrials | Champaign, United States | — | powerboxtech.com |
| PowerMarketOther | Other | Oxford, United Kingdom | — | powermarket.ai |
| PowerTechsEducation | Education | Wilmington, United States | — | powertechs.us |
| PowertrustIndustrials | Industrials | Vancouver, Canada | — | powertrust.com |
| Pramatra SpaceB2B | B2B | New York City, United States | — | pramatra.space |
| PraxisPro AIB2B | B2B | Houston, United States | — | praxispro.ai |
| PrecogOther | Other | Boulder, United States | John De Goes | precog.com |
| Predictive EquationsB2B | B2B | Beer Sheva, Israel | — | predictive.vision |
| PredikoB2B | B2B | London, United Kingdom | Nikhil Korotana | prediko.io |
| PrefixOther | Other | Austin, United States | — | prefixinc.com |
| PreplyEducation | Education | Brighton, United States | Kirill Bigai | preply.com |