Crenshaw Consulting Engineers is a multidiscipline building engineering firm providing mechanical, electrical, plumbing, structural, fire alarm and fire protection engineering. Its dedicated fire protection design service covers occupancy hazard classification, hydraulic calculations, sprinkler layout, NFPA compliance, permit documents and coordination with authorities having jurisdiction. A separate fire alarm design service covers system design, submittal preparation with voltage-drop and battery calculations, and review of designs by others. The firm employs 19 professional engineers and is licensed in around 40 states and territories.