Our Team

The faces behind Tradesource, its technologies, and practices.

Mary Ellen Rosinski

President of Tradesource Inc. and CPA 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).

Sylvia Rosinski

Vice-President of Tradesource and has over 35 Years of experience in sales and 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.

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.”