- Urbanica IsraelPublic$385M
- UrbanisePublic$37M
- Ureru Net AdvertisingPublic$25M
- UridokiPublic$38M
- UroGen PharmaPublic$2B
- UroMemsPrivate-
- UrotronicPrivate$601M
- UrovoPublic$738M
- Ursa MajorPrivate$1.6B
- UrtestePublic$17M
- US FoodsPublic$20B
- US GoldminingPublic$99M
- US HealthVestPrivate-
- USA CompressionPublic$3.7B
- USA Rare EarthPublic$5.9B
- USA TODAYPublic$938M
- Uşak SeramikPublic$41M
- USANAPublic$259M
- USCB Financial HoldingsPublic$415M
- User LocalPublic$155M
- UserZoomPrivate$800M
- USHOPALPrivate-
- UshurPrivate$34M
- USI Insurance ServicesPrivate$17B
- UsiminasPublic$1.6B
- UsioPublic$65M
- USS Co.Public$5.5B
- USTPrivate$1B
- UT GroupPublic$874M
- Utah MedicalPublic$239M
- UtilidataPrivate-
- Utility GlobalPrivate-
- UtilityInnovation GroupPrivate$1.4B
- UTimePublic$281M
- UTOPIA FiberPrivate-
- UTour GroupPublic$757M
- Utz BrandsPublic$1.3B
- UVeyePrivate$800M
- UxinPublic$240M
- Uzin UtzPublic$393M
- UzumPrivate$2.4B




