Mark Kalish

Chairman & Chief Executive Officer

Mark Kalish uses his far-reaching state and federal relationships and strategic expertise - illustrated through his decade of accomplishments at Agudath Israel of America - to help clients achieve their goals.

Jack Feiler


Jack, a business development specialist, has enabled others to advance their businesses through successful sales and marketing strategies.


J.J. Rabinowich

General Counsel

JJ Rabinowich, a trained attorney, has over ten years of success in advocating for non-profits and multi-state companies as well as identifying government contracting opportunities for clients.

Melissa Schakowsky

Director of Government Relations

Graduating Magna Cum Laude with Honors, Melissa Schakowsky has a Bachelor of Arts in International Studies and Political Science with a minor in Economics from the University of Miami.

Patricia Munoz

Strategic Medicaid Advisor

Ms. Munoz started working as a caseworker for the Illinois Department of Human Services in 1986. In her 30 years at the agency, Ms. Munoz graduated to a senior manager responsible for managing public assistance offices throughout Cook County and beyond.

Liam Harding

Government Affairs Associate

Liam graduated from the University of Iowa with a degree in International Studies, History, and International Relations. Before joining S4, he interned in the district office of one of Illinois's US Congresswomen. 

Michael Greene

Director of Finance