Business Profiles

• SIO ADMINISTRATION, LLC
• BLACKSTONE PB I.F L.L.C
• UNITED SPECTRUM MANAGEMENT SERVICES LLC
• CHELSEA SAN DIEGO FINANCE, LLC
• BLACKSTONE PB I.E L.L.C.
• SIO FUND MANAGEMENT, LLC
• BLACKSTONE PB I.D L.L.C.
• BULLDOG VENTURES HOLDINGS, LLC
• BLACKSTONE PB I.C L.L.C.
• BLACKSTONE PB I.B L.L.C.