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Home
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Treasury Services
Treasury Management Representatives

Meet Our Treasury Management Representatives

Afton
Algona
Ames
Ankeny
Arnolds Park
Creston
Estherville
Fort Dodge
Humboldt
La Vista, NE
Le Mars
Milford
Omaha, NE
Shenandoah
Sioux Center
Sioux City
Spencer
Spirit Lake
West Des Moines

Andrew Peters

Treasury Management Representative

9719 Giles Road, La Vista, NE 68128

402.537.0300
Email Me

Andrew has been in community banking for almost 15 years in many capacities with a focus on advising and partnering with commercial clients. Using Treasury Services including Online/Mobile/Digital Banking, ACH capabilities, Remote Deposit Capture, Positive Pay, Sweep Accounts, and Wire Services allows our clients to focus on their business and achieve their goals with efficiency and security.
Ashley Avery

Treasury Management Representative

5801 Sunnybrook Drive, Sioux City, IA 51106

712.224.1212

712.870.9463
Email Me

Ashley brings several years of customer service experience to the Northwest Bank team, having joined in 2018. As a dedicated banker, her passion lies in assisting customers with their financial and treasury management needs.
Outside of work, Ashley actively supports the community by participating in networking and volunteer events and by visiting local small businesses. In her free time, she enjoys spending time with family and friends, as well as relaxing with her husband and their dog, Delilah.
Carolyn Matzinger

Treasury Management Representative, VP

116 S. Blossom St., Shenandoah, IA 51601

712.246.2205

712.246.0160
Email Me

Serving as Treasury Management Representative for the Shenandoah, Creston, and Afton areas, Carolyn Matzinger brings a wealth of experience and expertise to assist businesses with their financial management needs. With over a decade in banking, her background in municipal finance has equipped her with a specialized skillset to cater to the unique financial requirements of businesses and organizations.
Carolyn is a proud graduate of the Graduate School of Banking in Boulder, Colorado, class of 2024. This comprehensive program has further honed her skills and knowledge, ensuring that she provides the top-notch service our clients have come to expect. She is passionate about helping businesses thrive by understanding their financial needs and goals.
Carolyn is actively involved in the community. She serves as a City Council Member in Northboro, Iowa, and holds the role of Treasurer on the Board of Directors for the Charles Hockenberry Foundation. Carolyn also serves as an administrative liaison for the Board of Directors of the Greater Shenandoah Foundation.
Dawn Sassman

Treasury Management Representative, AVP

705 Grand Avenue, Spencer, IA 51301

712.580.4145
Email Me

Dawn Sassman is our Treasury Management Service Representative for our Northwest Iowa Region. Dawn’s background includes many years of retail sales and customer service experience. She is an expert in our Business Online Banking service which includes: ACH Manager, Wire Service, Positive Pay, and Remote Capture. Dawn is here to assist with streamlining your daily cash management needs and answer any questions you may have regarding our Business Online Banking service.
Check Out Dawn's Treasury Management Video Series on Positive Pay: Treasury Management Overview | Product Presentation Series
Jason Olson

Director of Treasury Management, VP

9719 Giles Road, La Vista, NE 68128

402.537.0300
Email Me

Jason brings more than 20 years of banking and financial services experience to Northwest Bank, where he leads Treasury Management with a focus on strategic growth, exceptional client service, and technology-driven solutions. As Director of the Treasury team, he oversees enterprise-level operations, commercial deposit accounts, and advanced cash management tools including ACH, wire transfers, remote deposit capture, Positive Pay, sweep accounts, and lockbox services.
A committed advocate for community and professional engagement, Jason has served as a Sarpy Chamber Ambassador and Young Professional, mentored students through the Teammates program, and continues to serve as finance chair at St. Thomas Lutheran Church. He has also held leadership roles as President and Treasurer of Sing Omaha, Inc., a nonprofit dedicated to choral music education and performance in the Omaha area.
With a proven track record in consultative treasury solutions and client-focused leadership, Jason partners with businesses to deliver tailored strategies, trusted relationships, and proactive cash management insights that help them thrive.
Check Out Jason's Podcast Episode: "Treasury Managment Basics" and Product Presentation Video Series: Treasury Management Overview!
Jeff Latterell

Treasury Management Representative, VP

5700 University Avenue, Suite 100, West Des Moines, IA 50266

515.327.5106
Email Me

With over 20 years of experience in the financial services industry, Jeff is the premier banking associate to Northwest’s business banking customers. Jeff’s banking background includes both retail and commercial banking, which allows him to assist clients with daily banking needs and Northwest Bank’s electronic cash flow services.
Jen Vander Broek

Personal Banker

242 N. Main Avenue, Sioux Center, IA 51250

712.722.5508
Email Me

Jen's background includes over eight years banking experience with Northwest Bank as a personal banker, along with a Business Administration degree from Northwest Iowa Community College. Her responsibilities include setting up business clients with commercial deposit accounts, paired with Treasury Products and Services tailored to the specific needs of the business. She values the relationship of the customer and strives to provide top notch customer service.
Lucas Cordle

Treasury Management Representative

10 N 29th Street, Fort Dodge, IA 50501

515-955-3331
Email Me

Lucas began his career in banking with Northwest Bank in 2019 as a teller while still in high school. Starting at the Fort Dodge location, he gained hands-on experience in customer service and developed a strong foundation in financial services. An Iowa State University graduate, Lucas brings a strong background in customer-focused banking and a passion for helping individuals and businesses reach their financial goals. He takes pride in getting to know his customers, building lasting relationships, and providing solutions that are customized to fit their unique needs.
Nathaniel Kuhn

Ag/Commercial Banker

100 S. 16th Street, Ames, IA 50010

Office: 515.598.1350

Direct: 515.598.1357
Email Me

Nathaniel, was born and raised in Phoenix, Arizona and eventually took a baseball scholarship at Central College in Pella, IA. He moved to Ames in 2018 and has called it home for the past six years. He brings 10 years of banking experience to the Northwest Bank team and is responsible for assisting our business customers with commercial lending, treasury management, and general banking needs. Nathaniel’s mission at Northwest Bank centers around meeting the needs of his business clients. He enjoys engaging with the community and volunteering his time with organizations across the Ames MSA. Nathaniel was the 2023 Ames Chamber of Commerce Ambassador of the Year, is a graduate of Leadership Ames Class 36, and was a 2024, 40 Under 40 winner. Nathaniel currently serves on the Advisory Council for ChildServe as well as the Ames young professional organization, AREA YP. Nathaniel also serves on the gala committees for both Boys and Girls Club of Story County and Friendship Ark.
Sara Schweitzer

Treasury Management Representative

1005 SW Oralabor Road, Ankeny, IA 50023

515.963.5074
Email Me

Sara Schweitzer brings a wealth of expertise and passion to her role as a Treasury Management Representative at Northwest Bank. Since joining Northwest Bank in 2020, Sara has been instrumental in helping numerous customers achieve their financial goals. With a commitment to personalized service, Sara is dedicated to building strong relationships with her customers and delivering tailored solutions to meet their business banking needs. Beyond her professional responsibilities, Sara actively participates in the Ankeny Young Professionals group and volunteers her time to mentorship through Big Brother Big Sister of Central Iowa, where she serves on the Big Impact Board.
Zak Clark

Treasury Management Specialist, VP

10 N 29th Street, Fort Dodge, IA 50501

515-955-3331
Email Me

Zak was born and raised in Fort Dodge, Iowa. He graduated from Saint Edmond High School and attended Central College in Pella, IA, where he played for the men’s basketball program while obtaining his degree in Business Management. Spending time with family, golfing, and cycling are just a few things Zak enjoys on a regular basis. Taking long weekends with his two daughters for new experiences is something he and his wife, Sharon, are passionate about.
As a Wealth Advisor, Zak is dedicated to helping clients meet their financial goals. He strives to fully understand and meet our clients’ unique needs as every situation is different. Zak does this through ongoing conversations, investment analysis, retirement planning, and asset management.
In the community, Zak volunteers his time to the youth, school, and church. He has also been active in the American Bankers Association’s Teach Children to Save Program where Zak teaches children the importance of saving and being responsible with money. He is also a member of the Iowa Central Community College Foundation Board.

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