Leadership Team

Chandu Shah
President / CEO

The S4 Inc. Management team is led by Mr. Chandu Shah, President and CEO. Mr. Shah founded S4, a professional services and consulting firm catering to US Government and DoD customers, in 1999. + read more


Steve Kerns
Chief Operating Officer

As Chief Operating Officer, Mr. Kerns leads the ongoing support of existing DoD customers, as well as directing new business development efforts. + read more

Patrick Brosnan
Chief Financial Officer

Mr. Brosnan oversees the company’s financial and contract activities, as well as Headquarters Operations, as Chief Financial Officer. + read more


Greg Harris
Senior Vice President

As a Senior Vice President, Mr. Harris is responsible for the oversight and growth of S4’s business in Alabama and neighboring regions. + read more

Phil Shuman
Senior Vice President

As a Senior Vice President, Mr. Shuman is responsible for the oversight and direction of the marketing team in the growth of S4, particularly in the area of cybersecurity. + read more

Corp Pic_Ron Gibbs

Ron Gibbs
Vice President of Business Development

As Vice President of Business Development, Mr. Gibbs is responsible for providing strategic direction and overall leadership for S4’s growth and marketing functions. + read more

Eshani Shah
ISO Management Representative

As an ISO Management Representative, Eshani Shah facilitates the ISO 9001:2015 quality program for S4 Inc. Ms. Shah serves as management rep responsible for internal, surveillance and re-certification audits. + read more