Comfort Systems USA Named One of Forbes’ Most Trusted Companies in America for 2026

John Sacht

CEO & CFO

As the Company’s CEO & CFO, John is responsible for all financial and risk management operations, the overall performance of the company, and various support departments including accounting, human resources, and information technology.  John monitors and directs the implementation of TEC Industrial’s strategic business plan and coordinates company governance with TEC Industrial’s parent company, Comfort Systems USA. Prior to joining TEC Industrial in 2014, he served in a variety of key financial and operational positions ranging from Corporate Controller up to Division President in a multi-billion-dollar Engineering, Procurement, Construction, Site Services, and Maintenance Corporation. John holds both Undergraduate and Graduate Business Degrees from Augusta State and Queens Universities, respectively.

Tony Calderone

President & COO

Tony is a highly versatile executive leader at TEC Industrial. His responsibilities at TEC Industrial include overseeing day-to-day internal operations, improving overall efficiency, and managing Projects & Site Operations, Safety, Quality, Estimating, Preconstruction and Procurement. With over four decades of experience, his background in integrated project delivery on complex industrial projects provides our clients with the assurance that their projects will be performed safely, on-time, and under budget. His knowledge of the process industries allows him to apply lessons learned to every project from planning up to commissioning and start-up. Prior to joining TEC Industrial, Tony served in leadership positions with some of the country’s largest EPC organizations, and a number of projects with which he had direct engagement and/or responsibility were recipients of the Associated Builders and Contractors (ABC) excellence award.

Cary Moore

VP, Sales & Marketing

Cary leads TEC Industrial’s Sales and Marketing team. Cary has over 30 years of experience as a seasoned Business Development and Operations Professional and is known for driving strategic growth and forging high-value partnerships with clients. His industry experience includes progressive roles of leadership across companies focused on engineering & construction, manufacturing, automation, and process equipment. Cary has successfully led business development initiatives for multi-million and billion-dollar projects within the Chemical, Pulp & Paper, Food & Beverage, Consumer Products, Pharmaceutical, Automotive, Advanced Manufacturing, Energy and Themed Entertainment industries. He holds a Mechanical Engineering Degree from Clemson University and an MBA from Penn State University.

Adam Schmidt

VP of Operations

Adam Schmidt serves T E C Industrial as Vice President of Operations. Schmidt assumed the role in 2025 following an outstanding career at a large Gulf Coast based services company where he oversaw both corporate and field operations constructing large capital programs in the chemicals, power, and industrial sectors with a combined 22 million manhours annually. His process industrial background includes 24+ years of experience and having assumed increasing levels of responsibility commencing with project controls, outage & turnaround management, field construction, construction operations, large capital construction management, EPC Project Director managing work forces exceeding 3,700 personnel, and ultimately VP of Corporate Construction Execution for that large fully integrated industrial EPC organization delivering projects throughout the Mid-Atlantic, Southeastern, and Southwest Regions of the United States with annual TIC values exceeding $5 billion with outstanding safety records. At T E C Industrial he leads the company’s Safety, Quality, Project Controls, Training, Estimating, Preconstruction, Procurement, and Material Management Groups. He is a graduate of Texas A&M University, and is based in the company’s Kingsport, TN Office.

Greg Boehling

CEO Emeritus

Director of Strategic Initiatives

Greg serves the organization as Director of Strategic Initiatives having recently transitioned into the role following 18 years as CEO where he led the company’s growth from a single discipline electrical contractor to a full service, self-perform construction, maintenance and operations support services company that has a world class safety recorded having recorded over 22 million consecutive safe work hours and multiple Tennessee Governor’s Awards for Workplace Safety.. He has enjoyed a distinguished 37-year career in the Engineering and Construction Industry where he advanced within the structures of some of the largest EPC firms in the country and ultimately lead the acquisition of T E C Industrial Maintenance and Construction (formerly known as Tennessee Electric Company) in 2007.  He continues to be very active in the local community supporting the United Way of Greater Kingsport among other philanthropic organizations, and in 2016 was selected for the Junior Achievement of Tri-Cities Business Hall of Fame.  Greg will continue to provide consulting support to T E C Industrial and its strategic clients prior to entering full retirement at the end of 2025.

Tony Calderone

Sr. Vice President, COO

Tony is a highly versatile executive leader at T E C Industrial. With over four decades of experience, his background in integrated project delivery on complex industrial projects safely, on time, and within budget provides our clients and their projects with the benefit of his perspective for the extent of the respective expansion program. His responsibilities at T E C Industrial include Project Management, Site Operations, Safety, Quality, Estimating, Preconstruction and Procurement. His knowledge of the process industries allows him to apply lessons learned to every project from planning up to commissioning and start-up. Prior to joining T E C Industrial, Tony served in leadership positions with some of the country’s largest EPC organizations, and a number of projects with which he had direct engagement and/or responsibility were recipients of the American Building Council’s (ABC) best-in-class recognition.