Our Team

John Giles

John Giles VP Strategic Development

John brings an extensive background and over 40 years of experience in the thermal energy space.  His knowledge covers most combined heat & power generation application across multiple industries, with deep expertise in engineering, fabrication, operations, maintenance/reliability/integrity, construction and commissioning of such plants.

At the TES Group of companies, John leads business development and client engagement efforts, helping shape and deliver solutions that meet the evolving demands of energy production, regulatory compliance, and environmental performance.

His ability to translate industry challenges into tailored and technically sound solutions enables TES to provide clients with optimized, reliable, compliant and turnkey results for their thermal, process & power systems whether for new installations, upgrades, or sustaining operations.

John’s leadership ensures that TES remains agile and responsive to market needs by offering value based solutions, while upholding the highest standards of quality, safety, and regulatory compliance

Vice-President Business Development

MISSION STATEMENT

Comprehensive solutions for steam, power, and industrial process facilities—including engineering, fabrication, construction, maintenance, and specialized pressure equipment expertise—all delivered with safety, reliability, and innovation in mind.

William “Bill” Parnetta President TES Group Inc

William
Parnetta

President

Bill brings over 30 years of leadership in finance, business management, and strategic planning with a strong foundation in the construction and industrial services sector.  

At TES Group, Bill provides both strategic vision and tactical guidance, aligning the company’s growth initiatives with the evolving demands of the power and energy industry. His extensive experience ensures that TES delivers financially sound, reliable, and technically robust solutions to clients. 

Under his leadership, TES leverages decades ofconstruction‑sector expertise through itsaffiliate network , combining engineering, maintenance, and project delivery capabilities to meet complex industrial needs across North America.