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Staff

At CGA, our greatest asset is our people. Contact any of our key employees to begin your project today.

Matt D. Garber Matt D. Garber, P.E., P.L.S.
President & C.E.O.
Board of Directors
641-752-6701 ext. 22
Michael C. Bearden Michael C. Bearden, P.E.
Executive Vice President
Board of Directors
641-752-6701 ext. 21
Mindy M. Bryngelson Mindy M. Bryngelson, P.E.
Vice President

Board of Directors
515-232-1784 ext. 62
Roger D. Luehring Roger D. Luehring
C.F.O.
Treasurer/Secretary
641-752-6701 ext. 36
Travis R. Stewart Travis R. Stewart, P.L.S.
Project Manager
Survey Department Manager
641-752-6701 ext. 23
Adam C. Daters Adam C. Daters, P.E.
Sr. Project Manager
641-752-6701 ext. 18
Joseph P. Roenfeldt Joseph P. Roenfeldt, P.E.
Project Manager
641-752-6701 ext. 44
Jeremy A. Harris Jeremy A. Harris, P.L.S.
Survey Project Manager
641-752-6701 ext. 26
Kay A. Thede Kay A. Thede
Aviation Program Specialist
515-232-1784 ext. 69
Jeffrey W. Sogge Jeffrey W. Sogge, Broker
Right of Way Director
641-752-6701 ext. 13
Stephen Troskey Stephen Troskey
Project Manager, Planner
641-752-6701 ext. 51
Jerry L. Shoff Jerry L. Shoff, P.E., P.L.S.
Client Services Manager
319-266-0258 ext. 102
Aaron L. Muller Aaron L. Muller, P.L.S.
Sr. Project Manager
319-266-0258 ext. 110
William N. Wright William (Bill) N. Wright, P.E.
Project Engineer
319-266-0258 ext. 101
Heather A. Thomas Heather A. Thomas, P.E.
Project Manager
641-752-6701 ext. 48
Justin Strom Justin F. Strom, P.E.
Project Engineer
641-752-6701 ext. 50
Daryl D. Albertson Daryl D. Albertson, P.E.
Sr. Project Manager
319-266-0258 ext. 111
Lee O. Gallentine Lee O. Gallentine, P.E., P.L.S.
Sr. Project Manager
641-847-3273
Donald S. Moore Donald S. Moore, P.E.
Project Manager
641-847-3273
Zeb J. Stanbrough

Zeb J. Stanbrough, P.L.S., E.I.
Professional Land Surveyor
Design Engineer
641-847-3273

Scott A. Steinfadt Scott A. Steinfadt, P.L.S.
Professional Land Surveyor
641-847-3273
Joe Snethen Joseph (Joe) Snethen, P.L.S.
Professional Land Surveyor
515-832-1876
Ben Groen Benjamin (Ben) J. Groen, P.E.
Project Engineer
641-752-6701 ext. 43
James Sweeney James V. Sweeney, P.E.
Professional Engineer
641-847-3273