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

Mindy Bryngelson, P.E. Professional Engineer

Vice President
Board of Directors
Iowa License #P17135

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

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

Iowa License #P19579

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

Iowa License #P21299

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

Iowa License #P19957

Theresa Stromberg-Murphy, P.E. Professional Engineer

Iowa License #P16934

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

Iowa License #P2442541

Luke Wilson, P.E. Professional Engineer

Iowa License #P26390

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

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

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

Iowa License #P17162

Joseph (Joe) Snethen, P.L.S. Professional Land Surveyor

Iowa License #P23133

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

Iowa License #P14677

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

Iowa License #P19957

Chris Sweeney, P.L.S. Professional Land Surveyor

Iowa License #P27466

Survey Manager

David Freese, Survey Manager

Engineer Interns

Kohle Nieland, E.I. Engineer Intern
John Adams, E.I. Engineer Intern
Lary Koosmann, E.I., L.S.I.

Project Manager

Land Survey Interns

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

Project Manager

Project Coordinator

Josh Dank

Licensed Real Estate Broker

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

Right of Way Agent

Iowa DOT Certified Inspector

Iowa DOT
Numerous Iowa DOT Certified Technicians

Iowa DOT