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Our Team

Meet the brains behind our operation.


Steve Mahrlig - President
Steve Mahrlig – President

OnSite Marketing was founded in 1996 by Steven Mahrlig as a field marketing company. He has spent the past nineteen years running the day to day operations of OnSite Marketing and building lasting partnerships with customers.

A graduate of West Chester University with a BS in Communications, Steve has personally worked with such major clients as Bank of America, JP Morgan/Chase Bank, ING Direct, Barclays Bank, Toys R Us, Exxon / Mobil, NRG Energy, The PGA TOUR, and SONY to name a few. Before launching OSM, Steve worked for a national event marketing company as an Account Executive for the NFL Visa program. Steve lives in West Bradford, PA with his wife Debbie and their two children.

Thomas P. Schwarzwalder – Vice President
Thomas P. Schwarzwalder – Vice President

Tom joined Steve at OnSite Marketing in December 2001 coming from an impressive career of national event marketing for companies including Bank One Card Services. He has experience working with such high profile partners as The PGA TOUR, NBA, Major League Baseball, as well as entertainment groups such as The Grande Ole Opry.

For OSM, Tom is responsible for managing the account executives and program coordinators, as well as coordinating business development initiatives and managing existing client relationships. He currently resides in Wenonah, NJ with his wife Susan and their son Jackson and their daughter Emily.