Firma U - Grimstad
- Utrans AS
- Uponor AS
- Unitec AS
- Unikhus AS
- Utleiehus AS
- Undervannsklubben Triton
- Urrbot Rud
- Ugland gård
- Ugland Supplier AS
- Um Bulk AS
- Ue eiendom AS
- Ugland Construction AS
- Ugland offshore AS
- Ulabrand Marine AS
- Ugland Shipping AS
- Ugland gård
- Ullpledd.Com
- Utel Systems AS
- Utbox minilager A/S
- Ugland Teknopark AS
- Urfjell Ingeniørtjenester
- Ugland eiendom AS
- Ulabrand Marine AS
- Ugland Takstol
- Ugland Estates AS
- Utdanningsforbundet Grimstad
- Universitetet i Agder
- Up With beauty AS
- Uno-X Grimstad
- Ugland Bulk transport AS
- Ugland gård barnehage AS
- Ugland Marine services AS
- Ugland Marine Management AS
- Ugland Auto II AS
- Ugland Auto i AS
- Ucc Short Sea AS
- Ugland Car Carriers AS
- Ugland Travel group AS
- Unique Christina Alesand
- Uno-X Grøm Grimstad
- Ugland Landhandel Kari Dahl
- Ugland Selskapene J J
- Uia Pensjonistklubb, avdeling Grimstad
- Ung Bolig Rente FC
- Ugland AS Andreas K L
- Ugland Holding AS Knut Axel
- Ugland østre Landbrukseiendom Leif Kokkersvold
- Ugland Castor Car Carrier i AS
- Universitetet i Agder (UiA) - Campus Grimstad