| WellMe.aiOther | Other | Ladysmith, Canada | — | wellme.ai |
| WePlayedConsumer | Consumer | Boston, United States | — | weplayed.com |
| West tenthConsumer | Consumer | Los Angeles, United States | Jessica Scorpio | wtenth.com |
| Westcott MultimediaOther | Other | Santa Monica, United States | — | westcottmultimedia.com |
| WeStockB2B | B2B | Fort Lee, United States | Brian Garber | westock.io |
| WhelpB2B | B2B | New York City, United States | Umar Yousef | whelp.co |
| WhitebalanceOther | Other | Wilmington, United States | — | whitebalance.co |
| Whole SurplusIndustrials | Industrials | Istanbul, Turkey | — | wholesurplus.com |
| WhyGreneIndustrials | Industrials | Lacey, United States | — | whygrene.com |
| WibB2B | B2B | Tel Aviv, Israel | — | wenspiredata.com |
| Wind FisherOther | Other | Les Adrets, France | — | wind-fisher.com |
| Wise SystemsOther | Other | Cambridge, United States | Akarsh Sanghi | wisesystems.com |
| WiseairIndustrials | Industrials | Milan, Italy | — | wiseair.vision |
| WisearOther | Other | Paris, France | Julien Tangen | wisear.io |
| Wisk SolutionsFintech | Fintech | Toronto, Canada | — | wisk.ai |
| WisnioB2B | B2B | London, United Kingdom | Kaur Lass | teamscope.io |
| WizzPassOther | Other | Johannesburg, South Africa | — | wizzpass.com |
| WolfB2B | B2B | Potomac, United States | — | fromwolf.com |
| WorkAroundOther | Other | Boston, United States | — | wao.ai |
| WorkBrightB2B | B2B | Boulder, United States | David Secunda | workbright.com |
| WorkTorchEducation | Education | Wichita, United States | — | getquickhire.com |
| WriterDuetOther | Other | Austin, United States | Guy Goldenberg | writerduet.com |
| wryteEducation | Education | Munich, Germany | — | wryte.io |
| WunderOther | Other | Boulder, United States | — | wewunder.com |
| WunderiteFintech | Fintech | Bourne, United States | Ben Jennings | wunderite.com |
| WXLLSPACEB2B | B2B | Mahopac, United States | — | wxllspace.com |
| XairosB2B | B2B | Lone Tree, United States | David Mitlyng | xairos.com |
| XillionsOther | Other | Norman Park, Australia | — | xillions.ai |
| Xolani.HealthB2B | B2B | Lagos, Nigeria | — | xolanihealth.com |
| XookOther | Other | Bengaluru, India | — | xook.io |
| YaspaFintech | Fintech | London, United Kingdom | Paul Swinton | yaspa.com |
| YaypayOther | Other | New York City, United States | Anthony Venus | yaypay.com |
| YearOneB2B | B2B | Portland, United States | — | joinyearone.io |
| YEESMA SARLOther | Other | Dublin, Ireland | — | yeesma.com |
| Yoona.aiB2B | B2B | Berlin, Germany | — | yoona.ai |
| YOURIKAOther | Other | Waterloo, Canada | — | yourika.ai |
| YOWOther | Other | Tel Aviv, Israel | — | yow-hr.com |
| ZAMA HealthHealthcare | Healthcare | Washington, United States | — | zamahealth.com |
| ZegoB2B | B2B | Kansas City, United States | Sten Saar | zego.io |
| ZeltaOther | Other | Jersey City, United States | — | zelta.ai |
| ZendocB2B | B2B | Seattle, United States | — | zendoc.com |
| Zeno Power SystemsIndustrials | Industrials | Arlington, United States | Tyler Bernstein | zenopowersystems.com |
| ZephB2B | B2B | New York City, United States | — | zephbreath.com |
| Zilper TrenchlessB2B | B2B | Boston, United States | — | zilpertrenchless.com |
| ZiplineIndustrials | Industrials | San Francisco, United States | Keller Rinaudo | flyzipline.com |
| ZippiaiB2B | B2B | San Francisco, United States | — | zippiai.com |
| ZoftwareB2B | B2B | Dubai, United Arab Emirates | — | zoftwarehub.com |
| Zogo FinanceEducation | Education | Durham, United States | Bolun Li | zogofinance.com |
| ZohrIndustrials | Industrials | Kansas City, United States | Alex Kottoor | zohr.com |
| Zoi meetOther | Other | Rotterdam, Netherlands | — | zoimeet.jp |