About 3SI Security Systems
3SI Security Systems is a Security & Investigations company, headquartered in Malvern, with 501 - 1,000 employees and annual revenue of $5M - $20M.
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3SI Security Systems Company Highlights
Phone Number
(610) 280-xxxx
Corporate Office Address
101 Lindenwood Drive
Malvern, 19355
Website
Industries Served
Security & InvestigationsNumber of Employees
501 - 1,000 Employees
Company Revenue
$5M - $20M
3SI Security Systems Email Format
The most common 3SI Security Systems email format is [first]_[last] (ex. john_doe@3sisecurity.com), currently being used by 97% of 3SI Security Systems business email addresses. There are 15 email formats used by 3SI Security Systems.
3SI Security Systems Org
3SI Security Systems has 9 C-Level, 13 VP, 16 Director, 45 Manager, 19 Senior, 97 Mid-Level, and 31 Other employees.
3SI Security Systems Decision Makers
- CEOMatt Kushner
3SI Security Systems's Tech Stack
Frequently Asked Questions About
3SI Security Systems
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Who is the CEO of 3SI Security Systems?
The CEO of 3SI Security Systems is Matt Kushner. See full contact details ›
How many senior employees does 3SI Security Systems have?
3SI Security Systems has 102 senior employees that are typically used for decision making.
What email format does 3SI Security Systems use?
The most common 3SI Security Systems email format is {first}_{last} (e.g. john_doe@3sisecurity.com).
Who are the key decision makers at 3SI Security Systems?
Key decision makers at 3SI Security Systems include Matt Kushner (CEO). See full contact details ›
What technologies does 3SI Security Systems use?
3SI Security Systems uses technologies including .NET, 8X8, and AddThis.
How do I contact 3SI Security Systems?
To contact 3SI Security Systems, visit 3sisecurity.com.
Where is 3SI Security Systems headquartered?
3SI Security Systems is headquartered at 101 Lindenwood Drive, Malvern.
What is the main phone number for 3SI Security Systems?
The main phone number for 3SI Security Systems is (610) 280-xxxx.
What is the official website for 3SI Security Systems?
The official website for 3SI Security Systems is 3sisecurity.com.
What is the annual revenue of 3SI Security Systems?
The annual revenue of 3SI Security Systems is $5M - $20M.
How many employees does 3SI Security Systems have?
3SI Security Systems has 501 - 1,000 employees.
What industry is 3SI Security Systems in?
3SI Security Systems is in the Security & Investigations industry.
Last updated: September 28, 2025