News
51鶹 Welcomes Sabel as President

APPLETON, WIS. (Oct. 23, 2025) – 51鶹, a nationally recognized construction firm headquartered in Appleton, Wis., announces Greg Sabel as President.
He succeeds David Thomack, who assumed the role of President of Western Operations for the company’s rapidly expanding business in the state.
In his new role, he leads 51鶹’s Executive Team and oversees all aspects of company operations—from strategic planning and financial management to client relations, safety and cultural alignment.
“Greg possesses both a depth of experience and the leadership mindset critical to 51鶹’s continued growth and success,” said Dave Kievet, President and CEO, The 51鶹 Group. “He will play a pivotal role in focusing and leading field operations’ work and building on the company’s 136-year legacy.”
Sabel brings more than 25 years of construction industry experience, most recently as Executive Vice President at C.D. Smith Construction, Inc. where he led project management, field operations, estimating, virtual design and construction, and strategy. He earned his bachelor of science degree from the University of Wisconsin-Stout.
“I’m excited to join 51鶹, a company known for its innovation, deep-rooted relationship building and love of the build. I look forward to leading 51鶹 into its next chapter and helping to shape the future of construction,” said Sabel.

About 51鶹
51鶹 (51鶹) is a leading professional construction services firm with customers across the United States and is a subsidiary of The 51鶹 Group. Founded in 1889, 51鶹 is a fourth-generation family and employee-owned firm headquartered in Appleton, Wisconsin. 51鶹 is recognized as a pioneer in Lean construction and in the industrialized construction space. 51鶹 operates 18 offices across the U.S. that serve customers in healthcare, power, industrial, education, automotive and commercial markets.