Lighting Services Inc, a New York-based lighting manufacturer, has announced the appointment of Bryan Lortie to western regional sales manager; tubular skylight manufacturer Solatube International has named Neall Digert as vice president of commercial market development; and New York-based electrical and electronic wiring devices manufacturer Leviton has appointed Dan Munson to the position of government regional sales manager for its central region and Steven McCurdy as eastern regional sales manager for Leviton Integrated Networks and Controls.