| Tova EarthB2B | B2B | Amherst, United States | — | tova.earth |
| TozudaOther | Other | Philadelphia, United States | Marguerite Doyle | tozuda.com |
| TPS EngageOther | Other | Dubai, United Arab Emirates | — | seeblindspot.com |
| traceB2B | B2B | Provo, United States | — | trace.tech |
| TrackiMedOther | Other | Kefar Malal, Israel | — | trackimed.com |
| TractionBoardB2B | B2B | Utrecht, Netherlands | — | tractionboard.co |
| TradeLanesB2B | B2B | San Francisco, United States | Chad Gundersen | tradelanes.co |
| TradeverifydB2B | B2B | Bethesda, United States | — | tradeverifyd.com |
| TradingViewB2B | B2B | New York City, United States | Denis Globa | tradingview.com |
| TraiveIndustrials | Industrials | São Paulo, Brazil | Bernardo Brites | traivefinance.com |
| TransCryptsB2B | B2B | Newark, United States | — | transcrypts.com |
| Translunar Exports and Servicing IncorporatedB2B | B2B | Kinnelon, United States | — | translunar-esi.com |
| TransmuteOther | Other | Austin, United States | Karyl Fowler | transmute.industries |
| tread.ioConsumer | Consumer | Toronto, Canada | — | tread.io |
| TREDOther | Other | Seattle, United States | Grant Feek | tred.com |
| TreepzB2B | B2B | Toronto, Canada | Onyeka Akumah | treepz.com |
| TreetIndustrials | Industrials | San Francisco, United States | Lindsay Azpitarte | treet.co |
| Trellis HealthHealthcare | Healthcare | Seattle, United States | — | jointrellsihealth.com |
| Trellis ResearchOther | Other | Los Angeles, United States | — | trellis.law |
| TreloraOther | Other | Denver, United States | Joshua Hunt | trelora.com |
| TrendB2B | B2B | Austin, United States | Devon Townsend | trend.io |
| Trexo RoboticsOther | Other | Mississauga, Canada | Manmeet Maggu | trexorobotics.com |
| TrezeoFintech | Fintech | Dublin, Ireland | Garrett Cassidy | trezeo.com |
| Tribe XROther | Other | San Francisco, United States | Bilal Kaiser | tribexr.com |
| TRIDITIVEOther | Other | Meres Siero, Spain | Ana Riego | triditive.com |
| TrillbitOther | Other | Boston, United States | Saurabh Takkar | trillbit.com |
| TrinzzHealthcare | Healthcare | Kolkata, India | — | trinzz.com |
| Trio Financial TechnologiesFintech | Fintech | Boston, United States | — | trioapp.com |
| TrissinoB2B | B2B | San Francisco, United States | — | hiresteve.ai |
| TrogloIndustrials | Industrials | London, United Kingdom | — | troglo.io |
| TrojAIOther | Other | Saint John, Canada | James Stewart | troj.ai |
| TroposphereOther | Other | Austin, United States | — | troposphe.re |
| TrudentyOther | Other | Antwerpen, Belgium | Winston Ridley | trudenty.com |
| TrueCoachIndustrials | Industrials | Boulder, United States | Tyler Felous | truecoach.co |
| TruSpin Nanomaterial InnovationOther | Other | Birmingham, United States | — | tru-spin.com |
| Trust & WillFintech | Fintech | San Diego, United States | Cody Barbo | trustandwill.com |
| TRUSTBYTESOther | Other | Warszawa, Poland | — | trustbytes.io |
| Trusted CopyOther | Other | Las Vegas, United States | — | trustedcopy.com |
| TrustlineFintech | Fintech | Tours, France | — | trustline.id |
| TuilyFintech | Fintech | Naples, United States | — | tuily.com |
| TuneHatchOther | Other | Nashville, United States | — | tunehatch.com |
| TutornowEducation | Education | Appiano Gentile, Italy | — | tutornow.it |
| TutumConsumer | Consumer | New York City, United States | — | tutum.co |
| TVbeatOther | Other | London, United Kingdom | — | tvbeat.com |
| TweezrOther | Other | Amsterdam, Netherlands | — | tweezr.io |
| TwelveIndustrials | Industrials | Berkeley, United States | Nicholas Flammer | twelve.co |
| Twelve LabsOther | Other | San Francisco, United States | Jae Lee | twelvelabs.io |
| TwigtaleOther | Other | Marina del Rey, United States | Loren Herscu | twigtale.com |
| TyffonConsumer | Consumer | West Hollywood, United States | Shawn Zhao | tyffon.com |
| TypingDNAB2B | B2B | New York City, United States | Raul Popa | typingdna.com |