Catania:

Ubique Systems
Ultima Markets
umana
UMANA SPA
UNA Forza Vendite - Business line Openjobmetis SpA
UNA Italian Hospitality
Unigrà
UNIPOL
Unitec S.p.A.
UOP S.p.A.
up agenzia per il lavoro
Uptoo France
US Commander, Navy Installations Command
US10 Revvity Health Sciences, Inc.
Ustec S.r.l. (Ustec Group)
UTOPIA