Call Us: 717.843.4240

At our core

We have the present and the future. We strive to be a leading manufacturer by providing innovative technologies through designing and manufacturing in the USA. Developing solutions through our core values, we exceed expectations by doing things right. Motivated by our customers, the intuition of our employees, and the needs of the world. For 25 years Sentinel has provided the solution, and plans to continue to do so.

Inspiration 1 (1)

Principles

At Sentinel, our teams are working together to generate new solutions and solve complex problems. Across the company, we support professional growth and inclusion as it builds our company culture.

Values

Built from the ground up and American engineered and manufactured, we take pride in building a relationship with our customers and exceeding their expectations.

Ethics
Book of RJ copy

History

Our history stems from the book of RJ, created by our President and CEO Robert J. Brennan. The book of RJ represents over 40 years of the manufacturing do’s and don’ts of Sentinel Connector Systems Inc. The book of RJ lays out all of the qualifications to meet industry standards the first time. Sentinel Connector Systems, Inc. manufactures all RJ-45 plugs and jacks in the United States. Robert Brennan, Founder and CEO of Sentinel Connectors has been involved in the process since the first RJ-45. Robert and the Sentinel team have over 135 foreign and domestic patents related to the RJ-45 interconnect and related items.

Need a quote?

Fill out the form and a member of our team will reach out to assist you.

If you’d like to send us a message, fill out our general inquiry form.

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

If you have questions or need immediate assistance, give us a call today!

Mon-Fri: 8am-5pm

Tel: (717) 843.4240

Fax: (717) 848.1949