A-T Solutions of Vienna named Paul McQuillan, former president of Leonie Industries, executive vice president of business development.
Murillo/Malnati Group of the District named Darren Jefferson, former project accountant at B.F. Saul, accountant/development associate; John Neil, former construction manager at Waterford Development, construction manager.
Renovations Unlimited of the District named Gerald Williams, former superintendent at Bovis Lend Lease, project superintendent.
SkyBitz of Sterling named George Mercuro Jr., former controller, senior vice president of finance.
Nathan Associates named James Wallar, formerly the U.S. Treasury's attache in Iraq, vice president for international.
The Mission Solutions Group of QinetiQ North America of Fairfax named Austin Yamada senior vice president for strategy and business development.
APCO Worldwide of the District named Lisa Carr, formerly co-founder of Nine Dot Strategies, vice president in its issues management practice.
Feld Entertainment of Vienna named Lisa Joiner, former partner at Fulbright & Jaworski, senior vice president and general counsel.
Catapult Technology of Bethesda named Gregg Melanson director of government-wide acquisition contracts programs.
5AM Solutions of Reston named Ginger Price, former program director of the nationwide health information network program at the U.S. Department of Health and Human Services, vice president of business development.
Kiplinger of the District named Richard DeKaser contributing economist.
The Eugene and Agnes E. Meyer Foundation of the District named Barbara J. Krumsiek board chair, Joshua Bernstein board vice chair, Maria S. Gomez secretary-treasurer and Newman T. Halvorson as assistant secretary-treasurer.