Icf Consulting Services, L.L.C

Icf Consulting Services, L.L.C

Icf Emergency Management Services, Llc

Icf Incorporated

Icf Incorporated (delaware)

Icf Incorporated, L.L.C

Icf Incorporated, L.L.C

Icf Information Technology, Inc

Icf Information Technology, L.L.C

Icf Jacob & Sundstrom, Inc

Icf Macro, Inc

ICF Macro, Inc.

Icf Resources Incorporated

Icf Resources, L.L.C

ICF Services Company, L.L.C.

Icf Sh&e;, Inc

Icf Technology Incorporated

Icf Z-Tech, Inc

Information Spectrum, Inc

International Group Services, Inc