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PO Box 380
Oshkosh, WI 54903-0380
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Office: 920-235-5540
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Jon Gruenstern

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Are you ready for financial independence? Are you ready to be your own boss? Are you ready to make a positive impact on people's lives?

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Mission Statement

The Gruenstern Group, managed by Jon Gruenstern, is prepared and continues to posture itself to serve the needs of our individual and business clientele. By using the superior products of Northwestern Mutual and the expertise of our Financial Representatives and staff, and by continuing to focus on the needs and best interests of the marketplace we serve, our collective goal is to continue being the dominant network office in our area, attracting high-caliber new Financial Representatives to continue that legacy.

The Gruenstern Group can also service your employee benefit needs through NGMS-Oshkosh, Inc., a program affiliated with the Gruenstern Group that provides employee benefit services exclusively through Northwestern Mutual Financial Network Representatives.

Legal Notice | Online Privacy Statement | Disclosures | Customer Privacy Notice

Northwestern Mutual Financial Network (NMFN) is the marketing name for the sales and distribution arm of The Northwestern Mutual Life Insurance Company, Milwaukee, WI (NM), and its subsidiaries and affiliates, including Northwestern Mutual Wealth Management Company, Milwaukee, WI (WMC), a wholly-owned company of NM and limited purpose federal savings bank. NMFN is not a partnership or legal entity. Jon Peter Gruenstern is a General Agent of NM (life insurance, annuities and disability income insurance) and Northwestern Long Term Care Insurance Company, Milwaukee, WI, a subsidiary of NM (long term care insurance), and a Registered Representative and Investment Adviser Representative of Northwestern Mutual Investment Services, LLC, 210 N Main St, Oshkosh, WI 54901-4815, 920-235-5540, a wholly-owned company of NM, broker-dealer, registered investment adviser and member FINRA (www.finra.org) and SIPC. NM and The Gruenstern Group are not broker-dealers, registered investment advisers or federal savings banks. Managing Partners are not in legal partnership with each other, NM or its affiliates. There may be instances when agents of NM represent companies in addition to NM or its affiliates.

The products and services referenced are offered and sold only by appropriately appointed and licensed entities and Network Representatives. Network representatives might not represent all entities shown or provide all the services discussed on this web site. Not all products and services are available in all states.

Jon Peter Gruenstern, General Agent, The Gruenstern Group has Financial Representatives that are primarily licensed in Wisconsin.