Darley

Darley

W. S. Darley & Co.

Itasca, IL, United States

Land Systems & VehiclesNaval SystemsUnmanned SystemsCounter-UAS & Air DefenseDual-use
System Integrator, Subsystem ManufacturerSupplies Land Forces, Air Forces, Naval Forces, Special Forces, Homeland Security & Police
Profile last updated: May 6, 2026

About

Darley is a defense system integrator based in Itasca, United States working in land systems & vehicles, naval systems, unmanned systems +4 more.

Darley is a family-owned company headquartered in Itasca, Illinois, serving first responder, fire and tactical communities. It supplies equipment, technology and solutions to the U.S. Department of Defense, including special operational, fire and emergency equipment and unmanned systems. Its pump division manufactures fire pumps and related on-the-truck equipment, and the company offers training solutions such as virtual, augmented and simulated hazmat training. Darley positions itself as a defense procurement partner, supplying the U.S. military, federal wildland agencies, law enforcement and EMS organisations. It also offers a data platform for fire departments and operates a defense division with a partner program.

Location

Itasca, United States

Company type

Private company

Legal name

W. S. Darley & Co.

Focus areas

defense procurementfirst respondersfire pumpstactical equipmentunmanned systemscounter-UAStraining simulationwildland firefightinglaw enforcementEMS

Languages

EN

Products & capabilities

Defense domains

Land Systems & VehiclesNaval SystemsUnmanned SystemsCounter-UAS & Air DefenseOptronicsSoldier EquipmentSimulation & Training

Supply-chain role

System IntegratorSubsystem Manufacturer

What they offer

HardwareSoftwareTraining

Markets

Also sells to civilian markets

Products

Darley fire pumps

Fire pump

Pumps for fire apparatus, including wildland and tactical pumpers, manufactured by the company's pump division.

HazSim

Simulated hazmat training system

Interactive simulated hazardous materials training system for teaching chemical gases, radiation and related hazards.

End users

Land ForcesAir ForcesNaval ForcesSpecial ForcesHomeland Security & Police

Standards, platforms & customers

Named customers

U.S. Department of DefenseU.S. Department of WarU.S. Forest ServiceBureau of Land ManagementFish and Wildlife ServiceNational Park ServiceCAL FIRECAL OES

Credentials & affiliations

Certifications

ISO 9001:2015 Certified

Awards

EY Midwest Entrepreneur of the Year

EY2021

Inc. 5000 List

Inc.2020

Crains Fast 50

Crain's Chicago Business2020

Crains Fast 50

Crain's Chicago Business2025

Chicago Tribune Top Workplace

Chicago Tribune2022

Chicagoland Top Workplace

Chicago Tribune2025

U.S. Best Managed Company

Deloitte Private and The Wall Street Journal2026

Best Places to Work in Chicago

Crain's Chicago Business

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