P. Mark Thomasson, CET, CFPS

Partner

Mark Thomasson began his association with the fire protection industry in 1981 while building turnkey data centers throughout Houston and Dallas. Halon 1301 was the suppression agent of choice at that time. In 1987 he began working full time with fire detection and suppression systems as Director of Domestic and International Operations for a local fire protection company. In 1996 Mark moved into sales and in 2000, started DSI with his partner, Chris Ennis.

Mark holds a State of Texas license for fire suppression systems and fire alarm systems. Mark is currently NICET Level III certified for special hazards, Level II for fire alarm, and Level II for sprinklers. Mark is also a Certified Fire Protection Specialist tested and listed by the National Fire Protection Association, one of a very few throughout the United States

Professional Certifications

NFPA - Certified Fire Protection Specialist
NICET level III - Fire Alarm Systems
NICET level III - Special Hazards Systems
NICET level II - Sprinkler Systems

Manufacturer Training/Certifications

Fike - Explosion Protection Systems Level I
Fike - Explosion Protection Systems Level II

Licenses

State of Texas Fire Alarm Planner's License
State of Texas Fire Suppression System Planner's License

Member

American Society of Certified Engineering Technicians (ASCET)


Christopher B. Ennis, CET

Partner

Christopher B. Ennis began in the fire protection industry in the seventies. Beginning as a systems designer he quickly became management material for a multi state Fire Protection Contractor. Working for this company gave Chris his first experience with running a business. Since that time his exposure to all facets of the business have gained him first hand experience in design, equipment procurement, supervision of field personnel, and management of the sales department for a multi-million dollar fire protection company.

Chris holds a NICET level III certification in Special Hazards, and State of Texas planner's license.

Chris is also a past President of the Houston Chapter of the American Society of Plumbing Engineers, a current member of the National Fire Protection Association, past Board of Director for the Fire Suppression System Association, along with many community and civic responsibilities.


Jorge Medrano, CET

General Manager

Jorge began in the first protection industry in the mid eighties. After a short time in the industry, Jorge's abilities were recognized, and Jorge was promoted to a Project Manager for a worldwide fire protection company. Jorge's responsibilities included the supervision of projects in the United States, Thailand, China, the Philippines, and other countries through out the world.

Jorge holds a State of Texas license for fire suppression systems and fire alarm systems. Jorge is currently NICET Level III certified for Special Hazards, and Level II for fire alarm.


Rocky L. Robertson, SET

Operations Manager

Employed in the fire/security industry since 1980, Rocky Robertson has over 36 years of experience in the fire/security industry. Rocky was one of the very first individuals to obtain a level IV certification from NICET in the field of Fire alarms. He is also certified as a level IV in the field of Special Hazards.

Rocky's experience has come from years in the field as an installation and service technician, project manager, and the last fifteen years in system design and upper management. Rocky has been factory trained and certified in a multitude of systems by various manufacturers including: Siemens (Cerberus Pyrotronics), Kidde, Firetrace, Fike, Fenwal, Radionics, and others.

Professional Certifications

NICET level IV - Fire Alarm Systems
NICET level IV - Special Hazards Systems
NICET level III - Special Hazards Layouts

Manufacturer Training/Certifications

Kidde - FM-200 Fire Suppression System Design
Kidde - Novec 1230 Fire Suppression System Design
Kidde - CO2 Fire Suppression System Design
Kidde - Argonite Fire Suppression System Design
Fenwal - FM-200 Fire Suppression System Design
Fenwal - FenNet 2000 Fire Suppression Control Panel
Pyrochem - FM-200 Fire Suppression System Design
Siemens - Sinorix 1230 Fire Suppression System Design
Siemens - Sinorix 227 Fire Suppression System Design
Cerberus Pyrotronics - MXL Fire Alarm/Suppression Control Panel
Fike - Cybercat Fire Alarm Control Panel
Fike - Integrated Voice Evacuation System
Fike - Cheetah Fire Suppression Control Panel
Fike - Cheetah Xi Fire Suppression Control Panel
Fike - Ecaro Fire Suppression System Design
Fike - ProInert Suppression System Design
Fike - Explosion Protection Systems
Xtralis/VESDA - System Installation
Xtralis/VESDA - Aspire II System Design
Firetrace - FM-200 Fire Suppression System Design
Firetrace - Novec 1230 Fire Suppression System Design
Victaulic - Vortex Fire Suppression System

Licenses

State of Texas Fire Alarm Planner's License - APS-0444
State of Texas Fire Suppression System Planner's License - EPL-0073
South Carolina Fire Alarm License - BFS.12867
North Carolina Fire Alarm License - 27743-SP-FA/LV
Oklahoma Fire Alarm License - LIC-011171

Member

VESDA Advisory Council

American Society of Certified Egineering Technicians (ASCET)


Anthony Magelky, CET

Service Manager

Anthony Magelky has over 19 years of experience in the fire alarm and fire suppression industry. Anthony started as a field technician in 1998 and has progressed through the ranks as the installer, senior technician, project manager, and service manager. Anthony has been factory trained and certified in multiple systems by such manufacturers including:Siemens(Cerberus Pyrotronics), Fike, Fenwal, Kidde, Xtralis/Vesda, and others.

Professional Certifications

NICET Certification No. 111280
NICET - Fire Alarm Systems Level I
NICET - Special Hazard Design - Level III

Manufacturer Training/Certifications

Kidde - Aries Fire Alarm/Suppression Control Panel
Kidde - Aegis Single Hazard Suppression Control Panel
Kidde – Linear Heat Detection
Protectowire – Linear Heat Detection Systems
Fenwal - FenwalNet 2000 Fire Suppression Control Panel
Fenwal - Analaser High Sensitivity Smoke Detection
Cerberus Pyrotronics - MXL Fire Alarm/Suppression Control Panel
Fike – Impulse Valve Suppression Systems
Fike – Epaco Explosion Protection Systems
Fike - SHP/SHP Pro Fire Suppression Control Panel
Fike - Cheetah Fire Suppression Control Panel
Xtralis/VESDA - System Installation
Xtralis/VESDA - Aspire II System Design
Xtralis/Vesda – Proactive Fire System

Licenses

State of Texas License for Fire Alarm Systems - FAL-5812
State of Texas Planner's License for Fixed Extinguishing Systems - EPL-1763168

Membership

Society of Fire Protection Engineers (SFPE) - Houston Chapter