Companies

Alion Science and Technology of McLean appointed Bruce Samuelsen chief operating officer.

APCO Worldwide of the District appointed Jim Moorhead a member of the firm’s international advisory council.

Dewberry of Fairfax appointed Michael Chua senior associate.

Fairmont of the District appointed Carrow Rasberry senior catering manager.

Hilton Worldwide of McLean appointed Katie Beirne Fallon senior vice president and global head of corporate affairs.

Kimpton Hotel Monaco of the District appointed Gregory Leinweber general manager.

Natural Insight of Sterling appointed Caroline Lane director of marketing.

Ruppert Landscape of Laytonsville appointed Drew Drumman, Rob Groves, Tom Flint and Jenna Hicks associate branch managers and Brandon Cannon senior associate for leasing and acquisitions.

Law and lobbying

Bradley Arant Boult Cummings of the District appointed Anna Lashley an associate.

Cozen O’Connor Public Strategies of the District appointed Kevin Washo its government-relations principal.

Mayer Brown of the District appointed Stephen Lilley and Matthew Alexander partners.

Mitchell Silberberg & Knupp of the District appointed Don Wallace of counsel.

— Compiled by Aaron Gregg

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