Blackstone Fire Protection is a Washougal-based contractor that designs, installs, inspects, tests and maintains wet and dry fire sprinkler systems, fire pumps and fire alarms. It works on commercial and industrial properties in Washington, Oregon, Colorado and California. It holds a Washington State Patrol fire sprinkler system contractor licence (Level 3) and is registered with Washington L&I (BLACKFP830D9). The site also lists Oregon CCB 198916 and California licence 1012929.