Alexandria Real Estate Equities of Gaithersburg appointed Joel S. Marcus chairman and chief executive.

Comcast SportsNet of Bethesda appointed Benjie Kaze executive producer and director of original content and programming.

Deloitte Consulting of the District appointed Beth Meagher principal.

Ernst & Young of the District appointed George Atalla global sector leader to its government and public sector program.

Hybrid Shop of Gainesville appointed Dave Crawford chief executive.

LiveSafe of Arlington appointed Jennifer Ives director of strategic growth.

Lookingglass Cyber Solutions of Arlington appointed Jaci Baum Vilardo vice president of corporate strategy and sales.

Marshall Hotels & Resorts of Salisbury appointed Matt Jones vice president of operations.

Micro Focus of Rockville appointed Al Rosenbaum leader of its Borland team throughout North America.

PWC US of the District appointed Terri McClements metro marketing managing partner.

Ruppert Landscape of Laytonsville appointed Jennifer Hicks area manager in the landscape maintenance branch.

Sigma-Tau Pharmaceuticals of Gaithersburg appointed Dave Lemus chief executive.

Associations & nonprofits

The Fredericksburg Regional Alliance of Fredericksburg appointed Curry Roberts president.

The Mount Vernon Triangle Community Improvement District of the District appointed Jerome Raymond real estate and planning manager.

The National Association of Criminal Defense Lawyers of the District appointed Barry Pollack vice president.

The National Coalition to Save our Mall of the District appointed Julia E. Reynes interim executive director.

The Plastic Industry Trade Association of the District appointed Robert. E. Helminiak vice president of science and regulatory affairs.

Law & lobby

Kilpatrick Townsend & Stockton of the District appointed Joshua Pond partner.

Wilkinson Barker Knauer of the District appointed Brian W. Murray partner.

— Amanda Yerby