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., Registration: Iowa #17135 Ames | Architectural Site / Civil Design | Natural & Water Resources | Municipalities & Governmental
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

Joseph (Joe) Roenfeldt, P.E. | Professional Engineer

Iowa License #P21134

Justin Strom, P.E. | Professional Engineer

Iowa License #P24140

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

Iowa License #P2442541

Heather Thomas, P.E.
Heather Thomas, P.E. | Professional Engineer

Iowa License #P23208

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

Marc Hoodjer, P.L.S. | Professional Land Surveyor

Iowa License #P22634

Jeremy Harris, P.L.S., Registration; State #2014 Marshalltown | Boundary Survey
Jeremy Harris, P.L.S. | Professional Land Surveyor

Iowa License #P22259

Joseph (Joe) Snethen
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., E.I., Registration # Ackley | Boundary Survey
Zeb Stanbrough, P.L.S., E.I. | Professional Land Surveyor, Engineer Intern

Iowa License #P19957

Engineer Interns

Nick Brewer, E.I. | Engineer Intern
Garrett Jacobs, E.I.
Garrett Jacobs, E.I. | Engineer Intern
Kohle Nieland, E.I.
Kohle Nieland, E.I. | Engineer Intern
Zeb Stanbrough, P.L.S., E.I., Registration # Ackley | Boundary Survey
Zeb Stanbrough, P.L.S., E.I. | Professional Land Surveyor, Engineer Intern

Iowa License #P19957

John Adams in Marshaltown, Iowa
John Adams, E.I. | Engineer Intern
Luke Wilson, E.I. | Engineer Intern

Licensed Real Estate Broker

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

Right of Way Agent

Planning

Steve Troskey, Planning Project Manager, Marshalltown | Municipalities & Governmental | Planning & Zoning
Steve Troskey, AICP | Planning Project Manager

Municipalities & Governmental | Planning & Zoning

GIS (Geographic Information System) Director

Micah Cutler | GIS Director

Iowa DOT Certified Inspector

Iowa DOT
Numerous Iowa DOT Certified Technicians

Iowa DOT