Team Tradesource

Corporate Staff

Mary Ellen RosinskiMary Ellen Rosinski, President of Tradesource, Inc., is a CPA (Certified Public Accountant) and brings to the business strong business administration, sales, and management skills. Mary Ellen is a student of global currency systems and has been recognized by her peers in the barter and trade industry and has been an advocate for small exchanges and their involvement with International Reciprocal Trade Association (IRTA).

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Mary Ellen received the Legends of Barter Award at the 2009 IRTA Convention, an honor that recognizes members who have served and helped to shape and define the Industry over a period of ten or more years. Mary Ellen has also been the recipient of the IRTA Paul St. Martin Distinguished Service Award,   the IRTA Outstanding Achievement Award, and Appreciation Award. She currently serves on the Global Board of IRTA as Treasurer. Mary Ellen has also served on the National Association of Trade Exchanges (NATE) BANC committee and as the North America President for IRTA.

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Sylvia RosinskiSylvia Rosinski, Vice-President of Tradesource, Inc., has over 35 years of experience in sales marketing and management in barter and trade.

She has won numerous sales awards and in 2011, received the prestigious IRTA Paul St. Martin Award recognizing over three decades of outstanding service to the barter industry.

Sylvia has seven grown children.  In addition to her work at Tradesource, she finds time to volunteer at local food banks, women’s clinics, and senior centers.

Sally Valencia

Sally Valencia, Office Administrator and Certified Trade Broker, joined Tradesource in 2007. Sally is a great asset to our company. She takes pride in her work and applies her positive and upbeat attitude to assist our members to the best of her ability.

When asked what the best part of working for Tradesource is, Sally responded, “Having the resources and the ability to assist our members and creating friendships along the way.”

Sally enjoys spending time with her family and friends having BBQs, fishing, camping, dancing, and anything easy going and full of fun and laughter.

 Sales Team

Steve JulianSteve Julian, Executive Trade Broker, West Valley, joined Tradesource in 2004. Steve is native to Arizona, graduated from Sunnyslope High School, and is proud to be called an Eagle Scout. Steve, known as the official “MC” at Tradesource functions, goes the extra mile to put together trade deals between members to stimulate business.

Steve represents a home and commercial security company on trade called Empire Protection. Steve has a passion for buying and selling classic cars, and has facilitated classic car auctions throughout the United States. He spends most of his free time with his son Bentley, whose middle name was inspired by one of his favorite cars.


Tradesource Inc., 2920 East Northern Ave. Ste 104, Phoenix, AZ 85028 (Map) | (602) 996-1557
Offices:  Arizona Corporate Office  Idaho
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