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  • Writer's picture Peter Flippen

Introducing HVAC Exec and Board Member: Bob Wilken

For most owners, selling a business is a once in a lifetime opportunity which means a potential business sale can be years or even decades away. At IEI Advisors, we are often in touch with these owners about selling their company only to say “okay, we’ll follow-up with you in X number of years or decades.” While we are certainly happy to do that, we’ve often wondered if there was another way we could be of service to these owners in the meantime.

Then we had an “Aha!” moment when reconnecting with a long time HVAC executive and board member, Bob Wilken, who had recently retired from TDIndustries in Dallas. After discussing Bob’s interest in sharing his knowledge through advisory and board relationships, we knew that a semi-retired Bob could make a fantastic consultant. It helped that Bob had served on the board of TDIndustries, was currently on the board of two HVAC companies, and had experience in an HVAC consulting role.

With all this in mind, IEI immediately started introducing owners to Bob and the feedback has been excellent. Now we’ve brought Bob on as an IEI Advisors consulting partner to help him get connected to the right owners. Our hope is that Bob can support owners in achieving their goals and ultimately help them grow the value of their business. Continue reading to learn more about Bob and contact us if you’d like to be introduced to him.


  • Former executive and Board Member at TDIndustries, a facilities services and mechanical construction firm.

  • Current Board Member for two large commercial HVAC companies

TDIndustries Key Accomplishments:

  • Helped grow the service business from $20M to $170M

  • Named President of the mechanical service group

  • Trained and developed leaders for multiple business units


Bob Wilken is semi-retired after a 46-year career in the commercial HVAC industry with Honeywell and TDIndustries. During his 27 years with TDIndustries, Bob served in leadership roles for many businesses including Service, Energy Solutions, Building Controls, Multifamily Construction, Facilities Management Services, High Purity Piping, the Arizona office start-up, and the Service Leadership Forum. He also led, grew, and transitioned several business units to new leadership.

TDIndustries is a $700M per year revenue contractor operating in Texas, Arizona, and Colorado. Bob was particularly instrumental in the long-term growth and success of the service business and led that business for many years. When he started in the service leadership role, it was at approximately $20M revenue and upon his retirement, the revenue had grown to over $170M.

As a leader and mentor, Bob was influential in the selection, growth, and development of many future leaders at TDIndustries. He was also a part of many important initiatives at TD. He served on the Servant Leadership Council, the Executive Leadership Team, and a term on the company’s Board of Directors. Additionally, Bob represented the company in several peer groups and both non-profit and industry association boards.

Bob has a Batchelor’s degree in Business Administration from St. Ambrose College, is a Certified Energy Manger and at one time held an Electricians license. He also attended Stanford University’s Executive Education Program.


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