Client Service

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Terry Kartheiser
Personal Lines Account Manager
Email: Terry Kartheiser


Terry joined the Agency in June of 1979. After completing a comprehensive sales course in Hartford, Connecticut, he was licensed in property, casualty, life, and health insurance. Terry’s responsibilities include sales and customer service for personal and commercial clients.

Terry lives in Aurora with his wife Marilu and two daughters: Kristin & Katie.  Terry is an avid golfer and bowler.

Blanca1 - Client Service

Blanca Townsend
Personal Lines Account Manager
Email: Blanca Townsend


Blanca has been with Konen Insurance since August, 2014. She has extensive experience in the insurance industry in both personal and commercial lines. Blanca worked for Pinnacle Insurance for over 8 years and most recently was with Lenert Insurance Group.


Blanca understands the needs of her clients and gains their trust by outlining the best coverages available. Blanca lives in Aurora with her husband, toddler son and Labrador retriever.


Aaron Weinert
Employee Benefits Account Manager
Email: Aaron Weinert


Aaron joined Konen Insurance in August of 2014. He brings 14 years of insurance industry experience. Most recently, Aaron worked for ConnectedHealth, a Chicago firm that sets up benefits marketplaces for large employers. Aaron has also held positions at Unicare and EBRM, the largest General Agency for Blue Cross/Blue Shield Illinois, as an individual and small group underwriter. His experience and knowledge helps find the right product for each of his clients.


Aaron earned his Associates Degree from Waubonsee Community College. His interests include basketball and chess. He and his wife live in Aurora with their 2 sons.

Sandy Marchesi

Sandy Marchesi
Commercial Lines Manager
Email: Sandy Marchesi 

Sandy joined the Agency in October of 2007 as a Senior Customer Service Representative.  She has over 25 years experience in the insurance industry both in personal and commercial lines.  She is responsible for servicing the agency's commercial lines customers.
Sandy lives in Oswego; has one son and two grandchildren.


Tammy Kolschowsky
Commercial Lines Account Manager
Email: Tammy Kolschowsky


Tammy joined the Konen Insurance team in June 2014. She has over 20 years of insurance experience including personal, health and commercial and life experience. Prior to working at Konen Insurance, Tammy worked at Arthur J Gallagher/Premier Risk Services.


Tammy’s enthusiasm about her job helps her to connect with her clients and provide excellent customer care. She takes the time to learn about her clients and make sure she is meeting all of their questions and needs.

Melanie Garza

Melanie Garza
Commercial Lines Account Manager
Email: Melanie Garza

Melanie joined the agency in October 2012. She has a bachelor's degree in business from Aurora University. Melanie is a licensed agent in Property and Casualty along with Life and Health. Prior to joining the agency Melanie had previously worked in the insurance industry for 7 years in both personal and commercial lines. She is responsible for servicing the agency's commercial accounts.
Melanie lives in Oswego with her husband Ivan.

Kathleen Nass

Kathleen Nass
Commercial Lines Account Service
Email: Kathleen Nass

Kathleen joined the Agency in November 2006.  She has a bachelor’s degree in accounting from Millikin University.  Prior to joining the Agency, Kathleen worked for over six years in the insurance industry, two of those years as commercial underwriter with Farmer’s Insurance Group.  She is responsible for servicing our commercial accounts.  She is a life long resident of the Aurora area.
Kathleen lives in Aurora with her husband Jim and their three sons, James IV, Spencer, and Matthew.

Zoe Knudtson

Zoé Knudtson
Accounting Manager
Email: Zoé Knudtson


Zoé has grown up in the Agency working for her father during high school. Today she manages all of the accounting functions within Konen Insurance. Zoé graduated from Marquette University with a degree in finance.


Liz Simpson

Liz Simpson
Receptionist & Claims
Email: Liz Simpson

Liz joined Konen Insurance in January 2010. She has been employed in an office setting for many years and provides her knowledge and experience to the agency. She obtained her Property and Casualty insurance license since starting with the agency and assists with all departments as needed.
Liz and her husband Bill reside in Yorkville with their 2 daughters, Heather and Sara, and their 2 dogs, Rascal and Simba.

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Martin Lipton
Personal Lines Account Manager
Email: Martin Lipton

Martin joined the agency in September of 2017. Prior to joining Konen Insurance, Martin worked as an account executive for State Farm. While at State Farm, he earned his licenses in Property, Casualty, Life and Health Insurance. He earned a bachelor's degree in Sports Management with a minor in business from Xavier University.

Martin lives in Oswego with his wife Lindsey, daughter Olivia and their many dogs. 

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Ann Konen
Marketing Director
Email: Ann Konen

Ann joined the Agency in 2014. After many years of raising children and volunteering on various committees, she is bringing over 12 years of marketing experience to Konen Insurance. In previous jobs, Ann was responsible for business to business and consumer marketing for technology and fitness companies. She is responsible for all direct marketing, advertising and community outreach for Konen Insurance.

Ann graduated from the University of Dayton with a BS in Marketing and International Business.

Kelly1 - Client Service

Kelly Spang
Commercial Lines Account Manager
Email: Kelly Spang

Kelly joined Konen Insurance in January 2017. She is a licensed agent in Property and Casualty and is responsible for servicing accounts in the commercial lines department. Kelly has a bachelor's degree from Western Illinois University and in her free time enjoys spending time with her family.

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