Pulsar Alarm Systems is a fire and security company founded in 1974 and headquartered in Plaistow, New Hampshire, with a further office in Keller, Texas. It installs, inspects and maintains fire alarm, fire sprinkler and fire pump systems, and provides 24/7 fire alarm monitoring alongside security services. Much of its work is for large multifamily residential communities, and it also serves Florida and Colorado. It holds a Virginia Class C contractor licence (DPOR 2705170455) with the Fire Alarm Systems (FAS) specialty.