MarketSource Executive and Leadership Team

June, 2026

Leadership Overview

MarketSource has 4 executives leading key functions including strategy, operations, and sales.

Driven by a commitment to client success, MarketSource delivers innovative sales and promotional solutions across diverse industries, fostering brand loyalty and measurable sales growth through expert engagement strategies.

Leadership Roles at MarketSource

  • President & Chief Executive Officer - Michael Ayesh
  • Chief Operating Officer - Jim Mediate
  • President - Elizabeth Breitsameter
  • President - Jessica McNelley
  • Michael Ayesh - President & Chief Executive Officer

    Michael Ayesh, the President & Chief Executive Officer at MarketSource, directs the overarching corporate strategy and vision. Ayesh guides MarketSource's expansion and market positioning within the competitive marketing services landscape. This leadership role involves setting financial targets and ensuring operational alignment with the company's mission to provide impactful sales and promotional solutions. By focusing on strategic partnerships and market penetration, Michael Ayesh drives the company's growth trajectory and reinforces its established presence in driving sales and brand loyalty for clients. The Chief Executive Officer's mandate includes fostering innovation in client engagement and ensuring the delivery of superior results that meet and exceed client expectations across all service areas, including field marketing and event management.

    Jim Mediate - Chief Operating Officer

    Jim Mediate, the Chief Operating Officer at MarketSource, oversees the execution of daily operations and service delivery. Mediate ensures that MarketSource's sales and promotional solutions are implemented efficiently and effectively across all client engagements. This critical role involves optimizing internal processes and resource allocation to support field marketing, event management, and consumer engagement initiatives. By focusing on operational excellence, Jim Mediate enhances the company's capacity to drive sales and build brand loyalty for its diverse client base. The Chief Operating Officer's responsibilities extend to managing the logistical frameworks that underpin MarketSource's success, ensuring seamless coordination between various departments and service teams to achieve strategic objectives and maintain high standards of performance.

    Elizabeth Breitsameter - President

    Elizabeth Breitsameter, the President at MarketSource, spearheads key client relationships and strategic account management. Breitsameter focuses on developing and nurturing partnerships that leverage MarketSource's expertise in sales and promotional solutions. This leadership position involves understanding client needs and aligning the company's service offerings, including field marketing and event management, to deliver maximum impact. By driving client satisfaction and retention, Elizabeth Breitsameter contributes significantly to MarketSource's reputation for excellence and its ability to foster brand loyalty. The President's role emphasizes strategic collaboration, ensuring that MarketSource consistently provides innovative approaches to consumer engagement and achieves measurable sales outcomes for its partners.

    Jessica McNelley - President

    Jessica McNelley, the President at MarketSource, directs strategic initiatives focused on expanding MarketSource's market reach and service portfolio. McNelley drives the development of new promotional solutions and enhances existing consumer engagement strategies to meet evolving industry demands. This executive function involves identifying growth opportunities and ensuring MarketSource remains at the forefront of marketing services innovation. By championing new approaches to field marketing and event management, Jessica McNelley strengthens the company's ability to drive sales and cultivate lasting brand loyalty for clients. The President's focus includes fostering cross-functional collaboration to deliver integrated campaigns that achieve significant business results and solidify MarketSource's position as a leader.
    Jessica McNelley

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    Frequently Asked Questions Regarding MarketSource Top Executives and Leadership Team

    Who leads MarketSource?
    MarketSource is led by Michael Ayesh (President & Chief Executive Officer), along with executives such as Jim Mediate (Chief Operating Officer) and Elizabeth Breitsameter (President).
    Who is part of MarketSource’s executive team?
    The executive team of MarketSource includes leaders such as Michael Ayesh (President & Chief Executive Officer), Jim Mediate (Chief Operating Officer), Elizabeth Breitsameter (President) and other senior executives.
    How many executives does MarketSource have?
    MarketSource has 4 executives leading key business areas.
    What roles are included in MarketSource’s leadership team?
    The leadership team of MarketSource includes roles such as President & Chief Executive Officer, Chief Operating Officer, President, President.