Arabella Advisors of the District appointed Jill Rademacher managing director.
Arbitron of Columbia appointed Sean R. Creamer president and chief executive.
JBS International of Bethesda appointed Candace Charkow, Jennifer Kasten and Larry Robertson as vice presidents.
Maxim Healthcare Services of Columbia appointed William Butz as chief financial officer.
NII Holdings of Reston named Steven M. Shindler chief executive.
W.R. Grace of Columbia appointed Richards R. Badmington as vice president of corporate communications.
Tiny Dancer of Fairfax named Matt Jewel office manager.
American Iron and Steel Institute of the District appointed Lisa Harrison as senior vice president of communications.
HBI of the District named Edward Harrison, Steven O. Kramer, Faye M. Nock and Dennis O. Torbett as senior vice presidents and Keith Albright and Tadar Muhammad as vice presidents.
Mental Health Association of Montgomery County of Rockville appointed Scot Marken chief executive.
National Mining Association of the District named Nancy Gravatt senior vice president of communication.
Sports & Fitness Industry Association of Silver Spring named VJ Mayor director of marketing and communications, Jonathan Michaels director of membership and business development and Lauren Wallace director of thought leadership programs.
Howard Consulting Group of the District named Jayna Athas as associate in its public-affairs division Alex Mitchell, as project associate in its communications and media division and Josh Levitt as associate.
Cassidy Turley of the District appointed William Collins and Paul Collins as vice chairmen and Drew Flood, James Cassidy and Jud Ryan as executive managing directors.
Bean, Kinney & Korman of Arlington appointed William E. Evans associate.
Crowell & Moring of the District appointed Christopher A. Cole, former advertising litigation practice chair at Manatt, Phelps & Phillips, partner.
Venable of McLean named Joseph Schmelter partner-in-charge.
Send information about promotions, appointments and personnel moves in the Washington area to Appointments, Business News, The Washington Post, 1150 15th St. NW, Washington, D.C. 20071-5302, or to firstname.lastname@example.org.