What departments does Sentry Security have?

Sentry Security has employees across 4 departments including Entrepreneurship, Operations, Business Development, Military & Protective Services.

What is the largest department at Sentry Security?

The largest department at Sentry Security is Entrepreneurship with 3 employees.

Where are Sentry Security employees located globally?

Sentry Security has employees across 4 continents and 7 countries including Kenya, Bangladesh, Spain, Ireland, United Kingdom Of Great Britain And Northern Ireland.

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

Sentry Security's team has grown from approximately 68 to 69 employees based on available data.

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Sentry Security Employee Directory

Security and InvestigationsIllinois, United States201-500 Employees

Sentry Security is a security and investigations company based in Wheeling, Illinois, at 339 Egidi Drive, Wheeling, IL 60090. It provides integrated security systems that combine hardware and software to protect people, facilities, and assets across single facilities, multi-building campuses, or multiple sites. The company operates with 24/7 security professionals to provide real-time information and support, helping clients prepare for unexpected events. Its services include access control, intrusion detection, video surveillance, fire detection, perimeter lighting, and related security solutions, supported by a technology stack that includes Google Cloud and Google Maps. In 2021, the company expanded its Chicago-area offices, reflecting growth alongside reported annual revenue in the range of $10 million to $25 million.

Sentry Security Global Highlights

North America
133

United States Of America
123
Canada
10

Europe
13

United Kingdom Of Great Britain And Northern Ireland
7
Ireland
4
Spain
2

Africa
1

Kenya
1

Asia
1

Bangladesh
1

Sentry Security's Leadership

D. L.
Owner
Mobile Phone
Email
F. B.
Owner
Mobile Phone
Email
R. S.
Owner
Mobile Phone
Email
H. I.
Managing Director
Mobile Phone
Email
M. A.
Managing Director
Mobile Phone
Email
L. H.
General Manager
Mobile Phone
Email
L. S.
Business Development Manager
Mobile Phone
Email
B. S.
Manager
Mobile Phone
Email

Sentry Security Employee Metrics

100%

50%

2026

2025

Military & Protective Services
Business
Support
Administrative
Business Development
Other
Analytics

Contact profiles from Sentry Security

Name

Title

Contact

Location

Last Update

D. L.
Owner
Mobile Phone
Email
Oct 18, 2024
F. B.
Owner
Mobile Phone
Email
Oct 18, 2024
R. S.
Owner
Mobile Phone
Email
Oct 22, 2024
H. I.
Managing Director
Mobile Phone
Email
BangladeshDhaka
Jul 31, 2025
M. A.
Managing Director
Mobile Phone
Email
United KingdomEngland
Feb 26, 2026
L. H.
General Manager
Mobile Phone
Email
Ireland
Apr 14, 2026
L. S.
Business Development Manager
Mobile Phone
Email
United KingdomEngland
Jun 01, 2026
B. S.
Manager
Mobile Phone
Email
Oct 17, 2024
B. S.
Manager
Mobile Phone
Email
Oct 17, 2024
G. B.
Principal
Mobile Phone
Email
Oct 22, 2024

Frequently Asked Questions

What is Sentry Security known for?

Sentry Security was founded in 1972 operates in the Security and Investigations industry; you can contact the main corporate office by phone at

+1-847-398-****

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

What is Sentry Security's most common email format?

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

How many employees does Sentry Security have currently?

Sentry Security has approximately 253 employees as of July 2026. These team members are located across 4 continents, including North AmericaEuropeAfrica.

Who are Sentry Security's key employees and leadership?

As of July 2026, Sentry Security's key employees include:

Owner: D. L.
Owner: F. B.
Owner: R. S.
Managing Director: H. I.
Managing Director: M. A.

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Sentry Security Employee Directory

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