Your business needs to protect itself with network security, cyber security, and end-point security.

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contact Information

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Global Computer Systems

640 Belle Terre Road, Building G

Port Jefferson, NY 11777

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(631) 476-6500

I.T. Support - Press 1

Sales - Press 2

Emergency Support

1 (844) 895-1444

(call after hours)

Come work with us!
We are doing exciting things here at Global. Come do the things you learned about but never had an opportunity to work with. We don't SILO you.

Thomas Halpin, Managing Director

Why We're Great >


"We function like a family, we are all involved in everything"