What S4 Can Do For You

S4 Group is your government relations partner, ready to help you to engage with federal, state, and local officials.

While many firms operate at either the state or federal level, S4 Group provides national representation built upon established local relationships across the country. S4 Group leverages these relationships and your company's own strengths to enable long-term, sustainable growth.

The growth potential of many organizations, both private corporations and non-profits, is impacted by legislative and regulatory processes. With the S4 Group team at your side, you will have the information, relationships, and strategies your organization needs to reach its fullest potential.


Our Leadership

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

Chief Operating Officer

JJ Rabinowich, a trained attorney, has 10+ years of success advocating for non-profits and multi-state companies as well as identifying government contracting opportunities for clients.


Customer Testimonials  

  • S4 Group has brought a myriad of excellent opportunities to iiT Sourcetech. The relationships we have developed have generated significant revenue. Perhaps as important as the impressive quantity of valuable opportunities S4 has created for us, the follow-through the S4 staff provides has made a substantial difference in our company’s ability to realize the potential these new relationships offer.
    Pete Champ

    President & CEO of iiT Sourcetech

  • I’ve been working with JJ Rabinowich of the S4 Group for over a year now. He opened doors for us into the government offices regulating our industry and helped us create relationships with key officials. These relationships have been instrumental in streamlining our procedures and enabling us to minimize obstacles. It’s been a real pleasure working with him.
    David Greisman

    President of Grandison Management


  • aesservices_logo
  • vnahealthtrends_logo
  • toraumesorah_logo
  • objectivearts_logo
  • iitsource_logo
  • grandisonmanagement_logo
  • firstnationalassets_logo
  • communicare_logo
  • clevarminds_logo
  • agudathisraelofamerican_logo