Headquarters 2724 Dorr Avenue, Suite 100G Fairfax, Virginia 22031 Telephone: 703.698.5000 Fax: 703.698.5190 sales@cillc.com Accounting P.O. Box 2596 Merrifield, Virginia 22116 Telephone: 703.698.5000 Fax: 703.698.5190 accounting@cillc.com

Culpeper Office 302 E. Davis Street, Suite 201 Culpeper, Virginia 22701 Telephone: 540.829.8448 Fax: 540.825.9797 culpeper@cillc.com

Boston Office 101 Federal Street, Suite 1900 Boston, MA 02110 Telephone: 617.716.4333 boston@cillc.com

    4GC Solutions, LLC (a wholly owned subsidiary of 
    Competitive Innovations, LLC)
    2724 Dorr Avenue, Suite 100G
    Fairfax, Virginia 22031
    Telephone: 703.698.5077
    Fax: 703.698.5190
    4GC@cillc.com