Meet Our Staff


Terry Koelker, Associate

Terry has been with the firm since 1989, when he started his surveying/engineering career. He has been co-owner of the company since 2005. He is the office project manager and oversees all aspects of the company in its day-to-day operations. He is in charge of job cost estimates used to prepare bids for potential projects. His past experience includes subdivision design, land surveying and site design. He is a PLS in the State of Iowa (Professional Land Surveyor) and holds an associate’s degree in mechanical technology from Northeast Iowa Community College.

Contact Terry at 563-556-4389 or tlkoelker@buesing.com
 
John Gantenbein, Associate

John started his surveying/engineering career in 1988 and has been with the firm since 1996. He has been co-owner of the company since 2005. He specializes as a project engineer on WIDOT projects and is also responsible for design survey and construction staking on projects. John works with clients to respond to their needs and specializes in suggesting alternative based on his experiences. He holds a bachelor’s degree in civil engineering – transportation from the University of Wisconsin – Platteville and is WIDOT HTCP certified in Aggregate Sampling and PCCTECH – I.

Contact John at 563-556-4389 or jggantenbein@buesing.com
 
Brad Banfield, Senior Project Leader

Brad has been with the firm since 2006 and has been involved with the industry since 2002. He specializes in WISDOT Construction Management, WISDOT Materials oversight and Buesing’s Wisconsin Growth initiative. Brad works with clients to deliver projects on time and budget and minimize clients’ critical exposure issues. He is licensed as a professional engineer in the State of Wisconsin. He holds a bachelor’s degree in civil engineering from the University of Wisconsin – Platteville and is WISDOT HTCP certified in PCCTECH-I and Aggregate Sampling.

Contact Brad at 563-556-4389 or bebanfield@buesing.com
 
Patrick Norton, Senior Project Leader

Patrick joined the company in 2012 after being involved in the industry for 20+ years. He specializes in civil engineering, along with project management and coordination. He is licensed professional engineer in Wisconsin, Iowa, Missouri, Colorado and Arizona. He is a LEED Accredited Professional by the United Green Building Council, and holds a record with the National Council of Examiners for Engineering and Surveying.

Contact Patrick at 563.556.4389 or pjnorton@buesing.com
 
Thomas Larsen, Project Manager

Tom has been with the firm since 1990 when he started in the industry. He specializes in subdivision design, land surveying and site design. Tom works with clients to meet their needs for each particular project. He is a LSIT (Land Surveyor in Training) with the expectation of becoming a licensed PLS (Professional Land Surveyor). He holds a bachelor’s degree in industrial technology from Iowa State University.

Contact Tom at 563-556-4389 or tplarsen@buesing.com
 
John Hermsen, Assistant Project Manager

John has been with the firm since 1992 when he started in the industry. He specializes in land surveying and construction staking. He can lead a surveying crew using GPS, robotic total station or conventional equipment and load the information collected into AutoCAD and draw what is required for the project from start to finish. John is also in charge of testing and designing residential septic systems in Dubuque County. He coordinates the percolation testing of the sites with clients and aids the engineer in the design of the system. John works with clients to achieve what the client is looking for in a final product.

Contact John at 563-556-4389 or jchermsen@buesing.com
 
Kevin Schaub, Registered Civil Engineer

Kevin has been with the firm since 2006 when he started in the industry. He specializes in Wisconsin DOT highway projects, basic structural design and some surveying. Kevin works with DOT personnel to meet their needs for each particular project. He is license as a professional engineer in the State of Wisconsin. He holds a bachelor’s degree in civil engineering from the University of Wisconsin – Platteville and is WIDOT HTCP certified in PCCTECH-I and Aggregate Sampling.

Contact Kevin at 563-556-4389 or ktschaub@buesing.com
 
Rob Koelker, Survey Crew Chief

Rob has been with the firm since 2000 when he started his surveying career. He specializes in property surveying, construction staking, percolation tests and AutoCAD drawing. Rob works with clients to help achieve clients’ goals. He can lead a surveying crew using GPS, robotic total station or conventional equipment and load the information collected into AutoCAD.

Contact Rob at 563-556-4389 or rlkoelker@buesing.com
 
Justin Lau, Survey Crew Chief

Justin has been with the firm since 2004 and has been involved with the surveying industry since 2000. He specializes in property surveying, construction staking, percolation tests and AutoCAD drawing. Justin works with clients to help achieve clients’ goals. He can lead a surveying crew using GPS, robotic total station or conventional equipment and load the information collected into AutoCAD.

Contact Justin at 563-556-4389 or jjlau@buesing.com
 
Kenneth Buesing, Senior Project Manager

Ken founded the firm in 1985 after being involved with the industry since 1969. He specializes in civil engineering and land surveying from project management, coordination, attendance at meetings for clients or anything that needs an experienced hand in engineering and/or surveying. He is licensed in engineering in Wisconsin, Iowa and Michigan and land surveying in Wisconsin, Iowa and Illinois. He holds a bachelor’s degree in civil engineering from the University of Nebraska.

Contact Ken at 563.556.4389 or klbuesing@buesing.com
 
Jessalyn McDermott, Office Manager

Jessalyn has been with the company since 2005 when she started her clerical career. She specializes in business management and the day-to-day duties involved with office administration. Jessalyn works with clients to provide customer support. She holds an associate of applied science degree in business management along with a certification in AutoCAD, from Northeast Iowa Community College in Peosta, IA.

Contact Jessalyn at 563-556-4389 or jmsimon@buesing.com