Our Team &
Qualifications

When working with CGA, you will be assigned a Project Engineer and Project Manager. Your CGA team will consist of qualified and experienced professionals that leverage hundreds of years of combined experience in engineering, surveying, and construction management projects.

Your project won’t get lost in the shuffle or passed around to other project managers with CGA!

Your project won’t get lost in the shuffle or passed around to other project managers with CGA!

Professional Engineers

Matt Garber, P.E., P.L.S., Registration # Marshalltown | President & CEO
Matt Garber, P.E., P.L.S. Professional Engineer & Professional Land Surveyor

President & C.E.O.
Board of Directors
Iowa License #P14449

E-mail
Mindy Bryngelson, P.E. Professional Engineer

Vice President
Board of Directors
Iowa License #P17135

E-mail
Lee Gallentine, P.E., P.L.S., Registration: Iowa #15745, Ackley | Ag Drainage
Lee Gallentine, P.E., P.L.S. Professional Engineer & Professional Land Surveyor

Vice President, Operations
Iowa License #P15745

E-mail
Adam Daters, P.E., Registration # Marshalltown | Land Development | Planning
Adam Daters, P.E. Professional Engineer

Iowa License #P19579

E-mail
Donald Moore, P.E., Ackley, Registration #
Donald (Don) Moore, P.E. Professional Engineer

Iowa License #P21299

E-mail
Zeb Stanbrough, P.L.S., P.E. Professional Land Surveyor, Professional Engineer

Iowa License #P19957

E-mail
Theresa Stromberg-Murphy, P.E. Professional Engineer

Iowa License #P16934

E-mail
James Sweeney, P.E., Registration # Ackley | Structural Design | SWPPP | Ag Drainage
James Sweeney, P.E. Professional Engineer

Iowa License #P2442541

E-mail
Luke Wilson, P.E. Professional Engineer

Iowa License #P26390

E-mail

Professional Land Surveyors

Matt Garber, P.E., P.L.S., Registration # Marshalltown | President & CEO
Matt Garber, P.E., P.L.S. Professional Engineer & Professional Land Surveyor

President & C.E.O.
Board of Directors
Iowa License #P14449

E-mail
Lee Gallentine, P.E., P.L.S., Registration: Iowa #15745, Ackley | Ag Drainage
Lee Gallentine, P.E., P.L.S. Professional Engineer & Professional Land Surveyor

Vice President, Operations
Iowa License #P15745

E-mail
Travis Stewart, P.L.S., Cedar Falls | Construction Survey
Travis Stewart, P.L.S. Professional Land Surveyor

Iowa License #P17162

E-mail
Scott Steinfadt, P.L.S., Registration #Ackley | Boundary Survey
Scott Steinfadt, P.L.S. Professional Land Surveyor

Iowa License #P14677

E-mail
Zeb Stanbrough, P.L.S., P.E. Professional Land Surveyor, Professional Engineer

Iowa License #P19957

E-mail
Chris Sweeney, P.L.S. Professional Land Surveyor

Iowa License #P27466

E-mail

Survey Manager

David Freese, Survey Manager
E-mail

Engineer Interns

Kohle Nieland, E.I. Engineer Intern
E-mail
Lary Koosmann, E.I., L.S.I.

Project Manager

E-mail
Cameron LaGrange, E.I. Engineer Intern
E-mail
Reese Hageman, E.I. Engineer Intern
E-mail

Land Survey Interns

Dan Matzinger, L.S.I.
E-mail
Lary Koosmann, E.I., L.S.I.

Project Manager

E-mail

Landscape Architect Intern

Clay Silver, L.A.I.
E-mail

Project Coordinator

Josh Dank
E-mail

Licensed Real Estate Broker

Jeff Sogge, Licensed Real Estate Broker | Right of Way Registration #???
Jeff Sogge Licensed Real Estate Broker

Right of Way Agent

E-mail

Iowa DOT Certified Inspector

Iowa DOT
Numerous Iowa DOT Certified Technicians

Iowa DOT

E-mail

“The engineer’s report was excellent.”

“Thank you so much for the good service…the guys were very nice and friendly”

“Thanks again for getting the job done so efficiently and well!”