Engineering leadership and whole-mission solutions.

Chicagoland fire alarm and monitoring, TMA Five Diamond designated.

Chicago door and hardware house with three certified fire door inspectors.

IFDIA-certified fire door inspections in Chicago.

Chicago sprinkler, suppression and alarm contractor since 1983.

Metro East St Louis fire alarm and TMA Five Diamond monitoring.

Emergency exit lighting manufactured in Illinois since 1938.

Family-owned Chicagoland design-build sprinkler contractor since 1976.

Commercial doors and FDAI fire door assembly inspection across Chicagoland.

Experts. Responsive. Solutions.

Structural and materials forensics, including firestopping performance.

Independent third-party firestopping special inspection agency.

Purpose-built UL-listed central station serving Chicago's southern suburbs.

Forensic engineering and scientific investigation, ESi since 1987.

Fire and explosion origin and cause across four continents.

Engineering and scientific consultancy investigating fires and explosions.

The flow-calculation software behind gaseous extinguishing system design.

People-centered engineering.

National TAB and commissioning firm with an ICB/TABB smoke-control certification.

UL 924 exit signs, emergency lighting and central inverters.

Fire safety experts at the forefront of hazard prevention.

Performance matters.

Buildings. Transportation. Utilities.

Performance-based fire safety engineering for complex buildings.

Fire protection engineering with a forensic and litigation-support practice.

UL 2525 listed area-of-refuge and mass notification equipment.

Fire, security and life-safety consulting and engineering.

No surprises.

Fire testing and the UL listings a specification names.

Engineers, architects and materials scientists.