Jennings-Dill, Inc.
Nearly 80 Years Strong: Built on Craft. Driven by People.
Founded in 1947
Since 1947, Jennings-Dill, Inc. has been built on a simple idea: do quality work, stand by your word, and invest in people.
What began on February 21, 1947, as Super Supply Company, Inc.–founded by John Jennings and Jack Dill, Sr.–was born out of a growing need for skilled mechanical contractors in the Southeast. From those early days, the company earned a reputation for reliability, craftsmanship, and integrity that would define the next eight decades.
In 1965, the company officially became Jennings-Dill, Inc., ushering in a period of growth under the leadership of Jack Dill, Jr., a Clemson University-educated mechanical engineer and registered Professional Engineer. His commitment to excellence and relationships helped expand Jennings-Dill’s service to include HVAC, plumbing, piping, metal fabrication, and millwright work–establishing the company as a trusted mechanical partner throughout the Upstate and beyond.
Nearly 80 years later, that foundation remains unchanged–but the focus has expanded.
Today, Jennings-Dill is just as known for developing people as it is for delivering complex mechanical work. With a clear eye on the future of the trades, the company has made workforce development a cornerstone of its mission.
The Growth Path Program provides younger and newer employees with structured training, mentorship, and a clear roadmap from entry level positions to long-term careers. The Leadership Development Program, certified by the Mechanical Contractors Association of South Carolina, prepares Foremen and emerging leaders to plan work, lead teams, and uphold Jennings-Dill’s standards on every jobsite.
That commitment starts early through Jennings-Dill’s Work-Based Learning Program, which connects high school students to real-world jobsite experience and professional mentorship. Recognized as Greenville County Business Partner of the Year in 2024 and South Carolina Association for Career and Technical Education Business Education Partner of the Year in 2025, the program reflects Jennings-Dill’s belief that the future of the trades depends on intentional investment today.
Leadership continuity has played a key role in that vision. Jack Dill, Jr. continues to serve as CEO and Chairman of the Board, providing guidance rooted in decades of experience. In 2016, Bruce Henson was named President after more than 25 years with the company, carrying forward a third-generation commitment to integrity, safety, and quality.
The next generation joined in 2020, when Tyler Henson came on board, bringing world-class engineering experience from GE and advanced degrees from Clemson University and Georgia Tech. Promoted to General Manager in 2022 and CFO in 2024, Tyler represents the future of Jennings-Dill–focused on innovation, engineering excellence, and long-term growth.
As Jennings-Dill celebrates its 80th anniversary in 2027, the story is no longer just about where the company has been–it’s about where it is going. Built on craftsmanship. Strengthened by leadership. And driven, now more than ever, by a commitment to developing the people who will carry Jennings-Dill forward for generations to come.
Committed to Safety
Making Mike Proud
Jennings-Dill continues to honor the values that our company established almost 80 years ago by providing our employees with a workplace focused on respect, support, and opportunities for growth, but most importantly safety.
No other employee embodied Jennings-Dill’s commitment to safety like Mike Alewine. For thirty years, 1990-2020, Mike shaped the safety culture of Jennings-Dill. As far as he was concerned, there was no other way to work, no excuses, no compromises, no negotiations, no apologies; he set the bar high.
In recognition of his 30 years of service to the company, and in appreciation of the influence that Mike provided to our safety culture, the company named its annual safety award “The Mike Alewine Safety Award.”
Mike passed away on March 6, 2022. We are so thankful that he was able to join in the Jennings-Dill 75th anniversary kickoff celebration on February 21, 2022, surrounded by coworkers who loved and respected him.
Jennings-Dill is committed to continuing Mike’s legacy of making safety a top priority. As one of his co-workers said, our goal is to continue to “Make Mike Proud.”