- UltraForeclosures
- UseINBOX
- Ultimate Survival Tips
- Uni-ball
- Urban Expressions
- US Best Credit
- Union Metrics
- Uplinkly
- U.S. Tactical Supply
- U Brands
- United Medicare Advisors
- Userpeek
- UpMyInfluence
- United States Credit.com
- Unity Tactical
- U.S. Solid
- Urban Survival Gear
- UnitedLex
- United Facility Supply
- Userforge
- UNICEF Market UK
- Unity One Credit Union
- Unbox Social
- Uchida
- Uppler
- U.S. Box
- Umdum
- Uniclix
- USA Sealing
- Uniball
- US Diary
- Ut Unum
- USA Office Supplies
- Universal Office Products
- Ultimate Business Services
- Ungapped
- Urbane
- UNICEF Australia
- Upflex
- UVGrab
- Uniform House
- Uniforms Etc
- UNT Uniform Nametape
- Uniforms 4 You
- Ultrafryer
- Unisan
- U.S. Property Advertiser
- USA Promo Items
- Underground Music Showcase
- U. Santini Moving & Storage
- United Commerce Group
- Uniform Apparel
- US Tax Express
- USkins
- Unified Office Supply
- Urban Office Products
- Union Office Mall
- Uniforms 4 Healthcare
- Ultimate CPA Lander
- United Food Bank
- Unique Property
- Uncover the Net
- United States Oilfield Association
- UK Craft Websites
- UltraMail24
- Urban Operator
- Uncommon Etching
- US Weight
- Uberkit.net
- Usay Compare Health Insurance
- Upside
- UC Botanical Garden
- US Airways
- USC Hotel
- Upcoming Events
- Upstate Stock
- University Club of USC
- Urban Axes
- University of Nebraska State Museum
- United States Holocaust Memorial Museum