IMPAX Executive and Leadership Team

June, 2026

Leadership Overview

IMPAX has 5 executives leading key functions including strategy, finance, and operations.

Driven by a commitment to sales excellence, IMPAX empowers value-leading B2B organizations to refine their sales strategies and achieve measurable growth through expert training and consulting services.

Leadership Roles at IMPAX

  • Co Chief Executive Officer - Daniel Kosch
  • Co Chief Executive Officer - Mark Shonka
  • Chief Financial Officer - William Carthaus
  • Co-President - Dan Shonka
  • President & Owner - Robert Rothfuss
  • Daniel Kosch - Co Chief Executive Officer

    Daniel Kosch, the Co Chief Executive Officer at IMPAX, directs the company's overarching strategy and operational execution. Kosch spearheads the development and implementation of Impax's comprehensive B2B sales training and consulting services, ensuring alignment with the core mission of accelerating sales performance for value-leading organizations. Overseeing global sales initiatives, Kosch focuses on enhancing client acquisition and retention strategies through a value-based, next-generation approach. This leadership role involves driving innovation in sales methodologies and fostering a culture of continuous improvement across all client engagements. By optimizing opportunity coaching and sales management training, Daniel Kosch ensures that Impax delivers measurable outcomes that directly translate to increased revenue and market competitiveness for its partners. The strategic direction established by Kosch underpins Impax's commitment to addressing complex market challenges and facilitating sustainable growth.
    Daniel Kosch

    Mark Shonka - Co Chief Executive Officer

    Mark Shonka, the Co Chief Executive Officer at IMPAX, collaborates with Daniel Kosch to define and execute the company's strategic vision. Shonka's leadership focuses on advancing Impax's position as a global sales performance acceleration leader, emphasizing the delivery of impactful B2B sales training and consulting services. Overseeing the strategic partnerships and client relationship management, Shonka ensures that Impax consistently addresses the unique challenges faced by clients in dynamic market environments. This executive function involves guiding the evolution of sales strategies and fostering a client-centric approach to customer management. By championing a value-based, next-generation framework, Mark Shonka drives the development of solutions designed to enhance customer acquisition and retention. The focus remains on facilitating tangible growth and achieving measurable outcomes that bolster client revenue and market standing. Shonka's guidance ensures Impax's offerings remain at the forefront of sales effectiveness.
    Mark Shonka

    William Carthaus - Chief Financial Officer

    William Carthaus, the Chief Financial Officer at IMPAX, manages the company's financial health and strategic resource allocation. Carthaus oversees all financial operations, including budgeting, forecasting, and financial planning, ensuring robust fiscal management that supports Impax's growth objectives. This critical role involves analyzing financial performance, identifying opportunities for cost optimization, and ensuring compliance with all financial regulations. By providing strategic financial insights, William Carthaus enables the leadership team to make informed decisions regarding investments in sales training and consulting services. The financial strategies implemented by Carthaus directly contribute to the company's ability to deliver measurable outcomes and enhance client acquisition and retention. Ensuring financial stability and profitability is paramount to Carthaus's responsibilities, underpinning Impax's capacity to drive revenue and maintain market competitiveness for its clients.
    William Carthaus

    Dan Shonka - Co-President

    Dan Shonka, the Co-President at IMPAX, drives operational excellence and service delivery across the organization. Shonka's responsibilities encompass overseeing the execution of Impax's comprehensive B2B sales training and consulting services, ensuring high standards of quality and client satisfaction. This leadership position involves managing the teams responsible for delivering sales management training and opportunity coaching, directly impacting the effectiveness of client sales strategies. By focusing on a value-based, next-generation approach, Dan Shonka ensures that Impax's solutions are tailored to address complex market challenges and facilitate measurable outcomes. The operational framework established by Shonka supports enhanced customer acquisition and retention, contributing significantly to client revenue growth and market competitiveness. Shonka's dedication to refining sales processes underpins Impax's mission to accelerate sales performance.

    Robert Rothfuss - President & Owner

    Robert Rothfuss, the President & Owner at IMPAX, provides foundational leadership and strategic direction for the company's operations. Rothfuss oversees the overall business strategy, ensuring Impax remains a leader in sales performance acceleration for value-leading B2B organizations. This executive role involves guiding the development and refinement of Impax's B2B sales training and consulting services, including sales management training and opportunity coaching. Robert Rothfuss champions the company's commitment to a value-based, next-generation approach, focusing on enhancing customer acquisition and retention. The strategic vision set forth by Rothfuss ensures that Impax consistently delivers measurable outcomes, driving increased revenue and market competitiveness for its clients. Rothfuss's ownership ensures a deep commitment to the company's mission of empowering organizations to achieve superior sales results in complex market environments.

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    Frequently Asked Questions Regarding IMPAX Top Executives and Leadership Team

    Who leads IMPAX?
    IMPAX is led by Daniel Kosch (Co Chief Executive Officer), along with executives such as Mark Shonka (Co Chief Executive Officer) and William Carthaus (Chief Financial Officer).
    Who is part of IMPAX’s executive team?
    The executive team of IMPAX includes leaders such as Daniel Kosch (Co Chief Executive Officer), Mark Shonka (Co Chief Executive Officer), William Carthaus (Chief Financial Officer) and other senior executives.
    How many executives does IMPAX have?
    IMPAX has 5 executives leading key business areas.
    What roles are included in IMPAX’s leadership team?
    The leadership team of IMPAX includes roles such as Co Chief Executive Officer, Co Chief Executive Officer, Chief Financial Officer, Co-President, President & Owner.