> LANGUAGE AT WORK (WASHINGTON) INC. District of Columbia Since: 1985 LANGUAGE AT WORK (WASHINGTON) INC.
> KUMI CONSTRUCTION MANAGEMENT CORP District of Columbia Since: 2007 KUMI CONSTRUCTION MANAGEMENT CORP
> KALIJARVI, CHUZI, NEWMAN & FITCH, P.C District of Columbia Since: 1984 KALIJARVI, CHUZI, NEWMAN & FITCH, P.C
> KATOR, PARKS, WEISER AND WRIGHT P.L.L.C. District of Columbia Since: 1998 KATOR, PARKS, WEISER AND WRIGHT P.L.L.C.
