What departments does Whelan Security have?

Whelan Security has employees across 11 departments including Business, Finance, Program & Project Management, Arts & Design, Sales.

What is the largest department at Whelan Security?

The largest department at Whelan Security is Program & Project Management with 8 employees.

Where are Whelan Security employees located globally?

Whelan Security has employees across 4 continents and 8 countries including Afghanistan, Germany, Ireland, United Kingdom Of Great Britain And Northern Ireland, United States Of America.

How has Whelan Security's team size changed over time?

Whelan Security's team has decreased from approximately 2.8K to 857 employees based on available data.

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Whelan Security Employee Directory

Security and InvestigationsMissouri, United States1001-5000 Employees

Whelan Security is a security and investigations company headquartered at 1699 South Hanley Road, Suite 350, St. Louis, Missouri 63144, United States. It is one of the largest contract security providers in the United States and serves hundreds of clients across diverse industries nationwide. The company employs between 1,001 and 5,000 people and maintains a website at https://whelansecurity.com. In January 2019, Garda World Security Corporation acquired Whelan Security. Reported revenue falls within a range of $250 million to $500 million.

Whelan Security Global Highlights

North America
1.5K

United States Of America
1.5K
Canada
2
Saint Lucia
1

Europe
3

Germany
1
Ireland
1
United Kingdom Of Great Britain And Northern Ireland
1

Asia
1

Afghanistan
1

Oceania
1

Australia
1

Whelan Security's Leadership

K. M.
Chief Executive Officer
Mobile Phone
Email
M. M.
Chief Financial Officer
Mobile Phone
Email
H. R.
Chief Medical Scribe
Mobile Phone
Email
A. C.
Business Owner
Mobile Phone
Email
G. B.
Owner
Mobile Phone
Email
M. F.
Business Owner
Mobile Phone
Email
P. T.
Chairman/Ceo
Mobile Phone
Email
S. B.
Owner And President
Mobile Phone
Email

Whelan Security Employee Metrics

100%

50%

2026

2025

Military & Protective Services
Customer Success
Program & Project Management
Operations
Human Resources
Other
Administrative
Sales
Recruiting

Contact profiles from Whelan Security

Name

Title

Contact Info

Location

Last Update

A. G.
Client Service Manager
Mobile Phone
Email
United StatesMaryland
Jun 01, 2026
P. A.
Project Manager
Mobile Phone
Email
United StatesDistrict of Columbia
Mar 25, 2026
W. H.
Account Manager
Mobile Phone
Email
United StatesMinnesota
May 29, 2026
K. T.
Account Manager
Mobile Phone
Email
United StatesOregon
Jan 27, 2026
C. S.
Account Manager
Mobile Phone
Email
Oct 19, 2025
A. E. C.
Security Manager
Mobile Phone
Email
Mar 24, 2026
D. B. M.
Security Operations Manager
Mobile Phone
Email
Jun 02, 2026
R. A.
Project Manager
Mobile Phone
Email
Mar 25, 2026
J. D.
Business Development Manager
Mobile Phone
Email
United StatesArkansas
May 28, 2026
T. L.
Events Manager
Mobile Phone
Email
United StatesMinnesota
Aug 13, 2025

Frequently Asked Questions

What is Whelan Security known for?

Whelan Security was founded in 1949 operates in the Security and Investigations industry. The company's main headquarters is located in 1699 South Hanley Road Suite 350 St. Louis, Missouri 63144 United States; you can contact the main corporate office by phone at

+1-314-644-****

. Explore Whelan Security's company overview page for more information.

What is Whelan Security's most common email format?

Whelan Security employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Whelan Security email formats with LeadIQ.

How many employees does Whelan Security have currently?

Whelan Security has approximately 3.1K employees as of June 2026. These team members are located across 4 continents, including North AmericaEuropeAsia.

Who are Whelan Security's key employees and leadership?

As of June 2026, Whelan Security's key employees include:

Chief Executive Officer: K. M.
Chief Financial Officer: M. M.
Chief Medical Scribe: H. R.
Business Owner: A. C.
Owner: G. B.

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Whelan Security Employee Directory

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