G&A Partners Executive and Leadership Team

July, 2026

Leadership Overview

G&A Partners has 4 executives leading key functions including operations, revenue, people, and legal.

Driven by a commitment to client success, G&A Partners provides comprehensive human resource solutions, encompassing HR management, payroll processing, and benefits administration to empower businesses nationwide.

Leadership Roles at G&A Partners

  • Chief Operating Officer - Aaron Call
  • Chief Revenue Officer - Jonathan Allen
  • Chief People Officer - Michelle Mikesell
  • Chief Legal Officer & General Counsel & Corporate Secretary - Stephen Calvert
  • Aaron Call - Chief Operating Officer

    Aaron Call, the Chief Operating Officer at G&A Partners, directs the company's operational strategies and execution. Overseeing the delivery of comprehensive human resource services, Call ensures seamless integration of HR management, payroll processing, and benefits administration for clients. This leadership role involves optimizing internal processes to enhance service efficiency and client satisfaction, directly supporting G&A Partners' mission to provide robust outsourcing solutions. Call's focus remains on scaling operations to meet growing market demand and maintaining the high standards of service delivery that define the company. By managing the day-to-day operational framework, Aaron Call ensures that G&A Partners consistently delivers value and supports the strategic objectives of its diverse client base across the United States.
    Aaron Call

    Jonathan Allen - Chief Revenue Officer

    Jonathan Allen, the Chief Revenue Officer at G&A Partners, spearheads all revenue-generating activities and market expansion initiatives. Allen drives the company's sales strategies, focusing on increasing market share and cultivating new business opportunities within the human resource outsourcing sector. This executive position involves close collaboration with operational and marketing teams to ensure a unified approach to client acquisition and retention. Allen's leadership is critical in developing and executing strategies that align with G&A Partners' growth objectives, particularly in expanding its reach for payroll processing and benefits administration services. By fostering strong client relationships and identifying emerging market trends, Jonathan Allen ensures sustained revenue growth and reinforces G&A Partners' position as a leading provider of comprehensive HR solutions.
    Jonathan Allen

    Michelle Mikesell - Chief People Officer

    Michelle Mikesell, the Chief People Officer at G&A Partners, leads all human capital strategies and internal employee development initiatives. Mikesell is responsible for cultivating a positive and productive work environment, overseeing talent acquisition, employee relations, and organizational development to support the company's expanding service offerings. This role is fundamental to ensuring G&A Partners attracts and retains top talent, essential for delivering expert HR management, payroll processing, and benefits administration. Mikesell's strategic direction focuses on building a strong internal culture that mirrors the company's commitment to client success. By championing employee well-being and professional growth, Michelle Mikesell directly contributes to the operational excellence and sustained success of G&A Partners.
    Stephen Calvert, the Chief Legal Officer & General Counsel & Corporate Secretary at G&A Partners, provides critical legal counsel and oversees all corporate governance matters. Calvert ensures G&A Partners operates in full compliance with all relevant federal, state, and local regulations pertaining to human resource services, payroll processing, and benefits administration. This executive function involves managing legal risks, advising on contractual agreements, and safeguarding the company's interests across its national operations. Calvert's expertise is vital in navigating the complex legal landscape inherent in the HR outsourcing industry. By maintaining rigorous legal standards and corporate integrity, Stephen Calvert supports the company's strategic objectives and reinforces its reputation for reliability and ethical business practices.
    Stephen Calvert

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    Frequently Asked Questions Regarding G&A Partners Top Executives and Leadership Team

    Who leads G&A Partners?
    G&A Partners is led by Aaron Call (Chief Operating Officer), along with executives such as Jonathan Allen (Chief Revenue Officer) and Michelle Mikesell (Chief People Officer).
    Who is part of G&A Partners’s executive team?
    The executive team of G&A Partners includes leaders such as Aaron Call (Chief Operating Officer), Jonathan Allen (Chief Revenue Officer), Michelle Mikesell (Chief People Officer) and other senior executives.
    How many executives does G&A Partners have?
    G&A Partners has 4 executives leading key business areas.
    What roles are included in G&A Partners’s leadership team?
    The leadership team of G&A Partners includes roles such as Chief Operating Officer, Chief Revenue Officer, Chief People Officer, Chief Legal Officer & General Counsel & Corporate Secretary.