Our Team

Our Team

Michael K. Myers, AIF®

Mike Myers is a principal of Stonebridge Financial group and has been in practice in St. Louis, Missouri, since 1997. He earned his BS in business administration from the University of Missouri - Columbia. (Go MIZZOU!)

For more than 21 years, Mike has found great pride in assisting businesses and business owners with business succession, estate, and retirement planning needs. He works with his clients to determine independent solutions for each of their complex situations. Mike also has extensive experience with company and personal retirement plans, social security retirement benefits, retirement income planning, and investment portfolio allocations. This provides the knowledge necessary to map out a thorough retirement strategy that successful clients depend on. 

He and his team build long-term relationships based on trust, knowledge, and the drive to do what's best for each client given their unique financial needs and goals. He places a high value on these client relationships and considers them the backbone of the practice.

Michael holds numerous professional registrations and certifications, including the Accredited Investment Fiduciary® (AIF®) designation, widely acknowledged as the leading designation for investment fiduciaries for retirement plans and individuals; the FINRA Series 6, 7, 63, and 66 securities registrations as an Investment Adviser Representative of Commonwealth Financial Network®; and his Missouri life and health license. He maintains client relationships and registrations to practice in many states throughout the country.

Michael lives in Pevely, Missouri, with his wife of 22 years and their two children. Outside of the office, you will find him spending time with his family, being active in church, coaching baseball, and cruising in his 1923 Ford T-Bucket with the National T-Bucket Alliance Group. 

The principals of Stonebridge Financial Group are proud to be affiliated with Commonwealth Financial Network® of Waltham, Massachusetts. Our shared business vision and strong commitment to exceptional client service are now partnered with Commonwealth's customized solutions and time-saving technology. This affiliation strives to keep us focused on our mission and our clients' future.

Jeffrey A. Heveroh, AIF®

Jeffrey A. Heveroh is a founding partner of Stonebridge Financial Group in St. Louis, Missouri. He works with individuals and small business owners to provide customized wealth management, retirement income planning, estate planning, and insurance strategies for your pre- and post-retirement needs. Jeff is committed to helping his clients meet and exceed their financial goals. Jeff is an Investment Adviser Representative of Commonwealth Financial Network®. As an independent advisor for more than 15 years, he takes great pride in his independence when it comes to investment selection and investment philosophy. He believes in a simple motto when working with his clients: "Serve my clients first, last, and always."

Jeff graduated from the University of Missouri - St. Louis with a BS in business administration. He was a nine-time NCAA All-America Collegiate Swimmer during his four-year career. Jeff, his wife Melanie, and their three children have lived in St. Louis their entire lives and are active in numerous community and school activities.

Contact Jeffrey A. Heveroh

Timothy J. Nenninger, AIF®


Timothy J. Nenninger was raised in a suburb of St. Louis, Missouri, and is a graduate of Truman State University in Kirksville, Missouri. Upon graduation, Tim began his career in the financial services industry as a planner with Lincoln Financial Advisors. At the time, Lincoln was known in the industry for its outstanding professional training program; after his first year in the program, Tim was recognized as a leading planner within the firm.

In 2003, Tim became a founding member of Stonebridge Financial Group. With more than 15 years' experience, Tim possesses knowledge and expertise that make him invaluable to his clients. Tim believes that in order to provide world-class service and guidance, an investment professional should be free from the influences present at many of the traditional Wall Street firms. With this in mind, he earned his Accredited Investment Fiduciary® certification in 2010. Tim specializes in working with individuals and small business owners in the areas of investment, retirement, insurance, and estate planning, as well as in 401(k)s.


Tim and his wife, Nicole, live in Eureka, Missouri, with their three boys. They are very happy to be part of the St. Louis community and feel that it is a wonderful place in which to live and raise their family. In his free time, Tim enjoys his family and friends, as well as coaching the boys' baseball and soccer teams. Tim is also a die-hard Cardinals fan.

Contact Timothy J. Nenninger

Erna Sieber

Registered Assistant

Erna Sieber joined Stonebridge Financial Group in 2007.

Erna has her FINRA Series 7 and 66 securities registrations as a registered staff member of Commonwealth Financial Network®. She handles the preparation for client meetings, outgoing and incoming paperwork for client accounts, the follow-up details of client transactions, and assists in handling insurance questions and illustrations.

In her spare time, Erna enjoys spending time with her husband and spoiling her two grandsons, Brodie and Bryce, and her European cream retriever, Bailey.

Contact Erna if Jeff or Tim are unavailable or if you have transaction or insurance questions.