Companies

Dewberry of Fairfax appointed Mathini Sreetharan associate and Geraldine Knatz board member.

Grant Thornton of Alexandria appointed LaVerne Council managing principal for enterprise digital strategy and innovation.

Guess & Co. of the District appointed Stephanie Mykonos senior executive vice president, chief administrative officer, secretary and deputy treasurer.

Hitt Contracting of Falls Church appointed Kim Roy chief executive, Brett Hitt and Jim Millar co-chairmen of the board.

Peraton of Herndon appointed Matt McQueen chief communications officer.

Associations and nonprofits

ICI Global of the District appointed Jennifer Choi chief counsel.

National Defense Industrial Association of Arlington appointed Jim Boozer chief of staff.

Finance

Washington Financial Group of McLean appointed Michelle Taylor client service administrator.

Law and lobbying

Covington & Burling of the District appointed Tom Cosgrove partner.

Latham & Watkins of the District appointed Todd Beauchamp partner.

McGuireWoods of the District appointed Emily Gordy partner.

Quarles & Brady of the District appointed David Blank partner.

Sidley Austin of the District appointed Jennifer Clark and Michael Lewis partners and Michael Schmidtberger chair of the executive committee.

— Compiled by Aaron Gregg

Send information about promotions, appointments and personnel moves in the Washington region to appointments@washpost.com.