Whelan Security Information
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Whelan Security
Summary
Whelan Security is a private company that has been in the industry for 76 years. The company currently specializes in the Security and Investigations, Business Support Services areas. The position of the President is occupied by Greg Twardowski. Its headquarters is located at Saint Louis, Missouri, USA. The number of employees ranges from 5.0K to 10K. The annual revenue of Whelan Security varies between 100M and 500M. To connect with Whelan Security employee register on SignalHire.
Organization Website | whelansecurity.com |
Social Links |    |
Phone Number | 314-644-3227 |
Industries | |
Headquarters Location | 1699 South Hanley Road, Ste. 350, St. Louis, MO, 63144 US |
Employees Size | 5000-10000 employees |
Specialties | Uniformed Security Services, Event Services, Disaster & Emergency Response Services, Strike & Labor Dispute Services, Patrol & Alarm Response Services, Temporary Security Services |
SIC Code | 7380 |
DMA Code | Greater St. Louis Metropolitan Area |
Founded | 1949 |
Estimated Annual Revenue | $100M - 500M |
Operating Status | Acquired |
Competitors
Founded | Type | Employees | Revenue | Funding | |
|---|---|---|---|---|---|
| 1976 | - | 100 - 250 | 42.2M | $150K | |
| 1901 | Public Company | 100K - 9.9M | 9.4B | $0 | |
| 1973 | Privately Held | 100 - 250 | 32.4M | $0 | |
| 1955 | Privately Held | 5.0K - 10K | 1.5B | $0 |
Employees Turnover 3 quarter 2025
Number of employees switched from or switched to
Total number all of employee turnover
Length of Employment
Employee tenure at Whelan Security shows a diverse range of experience levels:
1% for 1–2 years1% for 3–4 years14% for 5–7 years27% for 8–10 years58% have over 11 years of service at Whelan SecurityEx-employees positions
In Company
In New Company
Contact top employees from
Whelan Security
Bilen Kebede
Security
Ricky Johnson
Retired
Christopher Luciano
Safety & Security Officer
James King
Security Officer
Terrie Cooklin
Security Practitioner
Britney Di Lauro
Security Officer
Adam Garner
Account Manager
Andrew Purchase
Security Officer
Ricky Callahan
Security Officer
Chandra Dickinson
Customer Service Staff
Adama Sahid Sidibe
Security Officer
Tamara Turner
Security Guard
Claudia Guerra
Security Officer
Tyler Tate
Security Officer
Michael Patton
On Site Supervisor
Donna Kile
Project Manager
Brandon Slone
Security Officer
Mario Hinojosa
Shift Supervisor
Ethan Borrou
Site Supervisor
Keith Henderson
Security Officer
Shemil Butler
Security Officer
Brett Murphy
Security/ Emt
Aaron Dawson
Security Officer
Ben Herrmann
Security Specialist
Carl White
Security Officer
Carlos Salazar
Security Officer
kathleen materowski
Security Officer
Jason Poirier
Event Security Specialist
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FAQ
Whelan Security operates in the Private Security industries. More details can be found on the official website: whelansecurity.com.
The headquarters of Whelan Security are located in St. Louis, United States.
The current CEO of Whelan Security is Greg Twardowski
You can contact Whelan Security by phone at 314-644-3227.
Whelan Security currently employs 5000-10000 people.
Whelan Security's revenue is approximately 212.8M.
Well-known competitors of Whelan Security include Safeco Alarm Systems, Inc., G4S, Inter-Con Security and U.S. Security Associates, Inc..
