Optical Solutions, Inc. (delaware)

Optimal Ventures, Inc

Optum Clinical Services, Inc

Optum Group, Llc

Optum Group, Llc

Optumhealth Care Solutions, Inc

Optumhealth Care Solutions, Inc.

Optumhealth Care Solutions, Inc.

Optumhealth Financial Services, Inc

OptumHealth Financial Services, Inc.

Optumhealth, Inc

Opus Ae Group, Inc

Opus Architects & Engineers, Inc

Opus Architects & Engineers, Inc

Opus Design Build, L.L.C

Opus Estates Corporation

Opus National, L.L.C

Opus National, L.L.C

Opus Property Services, L.L.C

Opus Real Estate Ga Vii Hartman Ii, L.L.C