Joe has been in the HVAC service industry for more than 34 years working for both OEM manufacturers and independent service and construction contractors. During his career he has held positions in field service, service technology, sales and service management.

In his current role, he leads a group of operating companies within Comfort Systems USA that have doubled their service revenue and profitability in less than five years, and is also leading Comfort Systems USA field service technology team with the goal of identifying and implementing new technologies into the HVAC service organization.

After a successful 30-year career at Johnson Controls in Atlanta and Milwaukee, David, and his twin brother Conrad, in 2023 launch Twin Bishop Strategies LLC, a business consultancy to help HVAC and building services organizations navigate rapid business changes.

Joining Johnson Controls in 1993, David held six leadership positions with increased responsibilities, including leading service operations and innovation for North America. Previously, he served as President – Service Division of Servidyne Inc., based in Los Angeles and Atlanta. As President, he co-wrote the business plan that was instrumental in selling the national HVAC/Chiller service business to Johnson Controls. David — an inspirational, purposeful leader who combines business and technical expertise to lead his teams to exceed their goals — retired from Johnson Controls in 2022.

David received his BSBA in finance from Auburn University and completed Executive Education courses in finance, mergers, acquisitions, analysis, planning & control at the University of Michigan, and Northwestern University.