Welcome to Northwestern Mutual in Middleton

Northwestern Mutual - Middleton enjoys a rich heritage as a provider of financial planning services. Since 1907, our growing firm has worked diligently to help people achieve their goals for financial growth and security.

Expert guidance

We realize that individuals have wide-ranging financial needs. For many, providing financial security for those they care about is a major concern. For some individuals, accumulating substantial wealth or preserving it, is a primary goal. Still others want to create an estate plan and fund it. Business owners may want to ensure that what they have built can pass smoothly from one generation to the next. Preparing for your financial future in any of these situations can be complex. It is important to have the help of highly trained and experienced professionals. 



Community Focus

One of the most rewarding aspects of our workplace is our commitment to bettering the lives of others. With that in mind, we have put our collective efforts behind Northwestern Mutual Foundation’s national philanthropic program to combat childhood cancer. 

Individually, whether we serve on a board, coach or tutor, we are passionate about our philanthropic activities. 

Career and internship opportunities

We are proud of the organization we have built by providing meaningful work, leadership and development opportunities and work-life balance.

We are growing and selectively looking to attract and develop high-quality individuals with integrity, professionalism, and a commitment to growth and development.  Learn more about our career and internship opportunities.



Find an office near you

Northwestern Mutual - Middleton is honored to be in a position to help strengthen the families in Southern Wisconsin and Northern Illinois.

Northwestern Mutual - Middleton
1600 Aspen Commons Ste 800
Middleton, WI 53562
(608) 836-3080

To find out more about each of our district offices, please visit the websites below:

Northwestern Mutual-

3960 Hillside Dr Ste 101
Delafield, WI 53018
(262) 646-6737
Northwestern Mutual-

400 Midland Ct Ste 104
Janesville, WI 53546
(608) 314-9260

Click on the interactive map to find a location closest to you.


Get to know us

We invite you to take a look around our website.  Learn about our firm culture, our philanthropic passions and the people and events that are making headlines for Northwestern Mutual - Middleton.




Josh Steven Kosnick, ChFC®, CLU®

Managing Partner

Career Changers

Changing careers doesn't have to be daunting. Coming from many different backgrounds and occupations, our financial representatives go on to develop successful business practices. With support from a quality organization, it can be an easy transition.

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Looking for a career that allows flexibility and exceptional income potential? Do you want top-notch training, mentorship and resources? Have you been searching for a company that demonstrates a commitment to diversity and giving back to the community?

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#1 in the Financial Services Industry

- Selling Power's "50 Best Companies to Sell for Now." October 2016

Top Ten Internship for 22 Straight Years

- Vault Guide to Internships, 2018 edition

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Webcast Available Now: Strength, Stability, and Financial Security in Volatile Times

Watch the client webcast to hear Northwestern Mutual leaders share their long-term view on the coronavirus impact and answer common questions from clients. Watch Now

4 Key Things to Know About the Coronavirus Stimulus Package

The coronavirus stimulus package is designed to bolster the economy and help Americans impacted by the coronavirus. Read more.

See Your Complete Financial Picture

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To learn more about Northwestern Mutual Investment Services, LLC and its financial representatives, visit: FINRA BrokerCheck