Precision, safety, innovation - the science of fire protection
For decades, Guardian Services has set the standard in research on flow of gaseous fire extinguishing agents. GSI provides consulting services for manufacturers, designers, and users of special hazard fire extinguishing systems as well as expert witness service to the legal profession.
About
Engineering & Consulting
Guardian Services, Inc. was established in 1985 to provide scientific and technical assistance to those who design, manufacture, test and use fire protection systems. GSI is a world leader in development and application of special hazards fire protection. GSI provides consulting services and expert witness services. GSI is headed by Tom Wysocki and Jessica Hubert.
Technology
Software Development
GSI is the world leader in research into the flow of fire suppression agents in pipelines and nozzles. We work with fire suppression system manufacturers to develop custom flow calculation software for their product lines. For authorities having jurisdiction, architects, engineers and designers we offer generic carbon dioxide flow calculation software.
- 20.09.2025
- Clean Agents
Listed and approved OEM software for inert gas and halocarbon clean agents including IG-541, IG-100, IG-55, IG-01, HFC-127ea, HFC-125, HFC-23, FK-5-1-12.
- 20.09.2025
- Generic Software
Calculates flow of high pressure CO2 using NFPA 12 methods. For those who need a quick way to estimate pipe and nozzle sizes.
- 20.09.2025
- Carbon Dioxide
Recognized as the world experts in OEM software for both low pressure and high pressure system design.
- 20.09.2025
- Dry Chemical
GSI developed the first OEM flow calculation for complex engineered dry chemical systems.
- 20.09.2025
- Verification of Flow Testing
GSI pioneered verification of flow testing to meet listing requirements for flow calculation software.
- 20.09.2025
- Agency Approvals
GSI works with agencies helping clients obtain listings and approvals for software and system hardware.
Guardian Services Inc.
Consulting Services
GSI provides a wide range of consulting services related to control of fire in special hazards. We provide hazard analysis, project management, system commissioning and review. We have experience in fire protection for marine applications, arctic environments, various commercial and industrial settings. GSI personnel have developed training courses in fire and explosion prevention, special hazard system design, and related fire safety topics. Contact us for more information on how we might serve you.
Tom Wysocki
Expert Witness
Guardian Services’ Tom Wysocki has been recognized as an expert witness in United States Federal courts and State courts in cases involving special hazards fire protection. He has been retained as an expert witness both by defendants and plaintiffs to provide professional analysis of system designs, application, maintenance and human factors leading to losses.
Pictured: Tom Wysocki (at left in picture) receives NFPA Committee Service Award from NFPA Standards Council Chairman Kerry Bell.
Are you interested?
We will be happy to answer your questions, discuss your business needs, and review the services we can offer to help your business.
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