Beginning in 2019, for eleven months Mr. Shanfelter served as Interim Chief Operating Officer of Orion Group Holdings, Inc. From 2001 to 2008, Mr. Shanfelter served as a member of the Board of Directors of MasTec, Inc. (NYSE: MTZ), a publicly traded specialty contractor, and as a special consultant from 2007 to 2008. Mr. Shanfelter served as Chief Executive Officer and President of MasTec from 2001 to 2007. From 2000 to 2001, Mr. Shanfelter was MasTec’s Chief Operating Officer and prior to that role, he was a divisional president of MasTec from1997 to 2000.

Mr. Shanfelter has been in the telecommunication, power, and specialty construction industry since 1981. Mr. Shanfelter became a member of the Society of Cable Television Engineers in 1982, the National Cable Television Association in 1991, and the Power and Communications Contractors Association (“PCAA”) in 1991, where he served as its President in 2007.

Mr. Shanfelter was the majority owner and Chairman of Global HR Research LLC, a pre-employment screening company, from 2008 through 2016. Mr. Shanfelter previously served as a member of the Board of Directors of Sabre Industries, a leading manufacturer of cell and power delivery structures.

Mr. Shanfelter is currently serving on the Board of Governors of the National Wrestling Hall of Fame. Mr. Shanfelter is the current Chairman of Champions4Children, a non-profit organization supporting children in the Fort Meyers, Florida area. The National Association of Corporate Directors had previously designated Mr. Shanfelter a Governance Fellow.