In 1999, when Ken Diel was celebrating 20 years in business with his firm Diel & Forguson, LLC, he decided to start his own investment company. The accounting firm had enjoyed considerable success in the region, helping both individuals and businesses grow and prosper. He noticed, however, that clients' were frequently unhappy with the advice they received from stock brokers. "Other brokers often seemed more concerned with selling securities, mutual funds, annuities, or stocks, with little regard to diversification, tax implications, or whether it was the right investment for the client" explains Ken.


One of the first pure "fee-only" investment companies in the area, Cambridge Capital Management remains a place where clients can be confident that they are getting independent, unbiased investment advice.


Ken earned a Bachelor of Science in Accounting at Southern Illinois University – Edwardsville. He is a Certified Public Accountant, a Certified Valuation Analyst, and a Personnel Financial Specialist. His professional affiliations include the American Institute of Certified Public Accountants, both the Illinois and Missouri Society of Certified Public Accountants and the National Association of Certified Valuation Analysts. He is also a member and past president of the O'Fallon-Shiloh Chamber of Commerce, the Rotary Club of O'Fallon, and has served on the Board of Directors for various local organizations.


He and his wife Patricia have a son and daughter who are both married, and two grandsons. They reside in O'Fallon, Illinois.

Nathan Klitzing joined Cambridge Capital Management in 2008 after time spent as a Municipal Bond Specialist in Chicago, and later as a Financial Adviser in St. Louis. Making the switch afforded Nathan the opportunity to form closer financial relationships with his clients. "We are usually involved in all aspects of our clients' financial lives."


As a Certified Financial Planner™ at Cambridge Capital Management, Nathan has become an integral member of the financial services team. His dedication to his clients, hard work and client first attitude have helped him to become first a Principal, then a Partner in the firm. Under his direction, the firm has grown significantly.


"The most rewarding part of my job" says Nathan, is being able to build such strong relationships with our wonderful clients. I consider it an honor to wake up every day and truly love what I do and the people I do it for."


Nathan holds a Bachelor of Science in Finance from Southern Illinois University – Carbondale, and is a Certified Financial Planner™. He is a member of the O'Fallon-Shiloh Chamber of Commerce, the SIUC Alumni Association, Rotary Club of Swansea, Illinois, and the Financial Planning Association.


Nathan, his wife Annie, and daughters Adelynn and Sophia currently reside in Shiloh, Illinois with their Labrador Retriever Marlee. In his free time, Nathan enjoys playing golf, following University of Illinois athletics, and traveling with his family, particularly their annual fishing trip to Canada.

As a CPA, Mike Tinkler spent 30 years serving in senior management positions with several small companies and non-profit agencies, but was always intrigued with personal financial planning. In 2004, while working at Diel & Forguson, LLC, Cambridge Capital Management's affiliate, he decided to make the switch and became a Certified Financial Planner™.

"Sitting down with my first financial planning client was one of the best days of my life" remembers Mike. He takes great pleasure in helping his clients visualize their dreams and developing strategies to help make those dreams come true.

Mike graduated from Southern Illinois University – Edwardsville with a Bachelor of Science in Accounting, is a Certified Public Accountant and a Certified Financial Planner™. He is a member of the Financial Planning Association and the National Association of Personal Financial Advisors. He previously served as President of the St. Louis County Government Employees Credit Union, and as Treasurer of the YMCA of Southwest Illinois.

Mike and his wife Barbara live in Fairview Heights, Illinois and have two married daughters and three grandchildren. He is an avid golfer, a bicycling enthusiast and enjoys attending St. Louis Cardinal Baseball games on a regular basis.

After earning a Bachelor of Science in Personal Financial Planning from Kansas State University, Ashlee Ogrzewalla worked as a Credit Specialist with a St. Louis brokerage firm before joining Cambridge Capital Management as a Registered Investment Adviser Representative (RIA). She is currently working toward her MBA designation.

In her current position, she is able to work with a wide variety of clients and especially enjoys advising other women and helping them take control of their financial future. "Women are making more money and living longer today than ever before" says Ashlee. "I think it's vital that they have the tools they need and a trusted financial advisor to help them make wise financial decisions for themselves and their families."

Ashlee is currently a member of the American Business Women's Association, the O'Fallon-Shiloh Chamber of Commerce, and Business Networking International- St. Louis.

An avid St. Louis Cardinals Baseball fan, Ashlee loves to attend games with family and friends. When she is not being a spectator, she can be found on the field, playing softball, and in the past has enjoyed coaching young girls. She is married to Thomas, and they, along with their Maltese Bogey, live in Nashville, Illinois.

Matthew Hawk
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Matthew Hawk has served as a Financial Adviser since 2008.  Previously, he spent 6 years working as a Staff Accountant.  " I knew I wanted to become a Wealth Manager at some point in my career. In 2008, when I saw how people were struggling, I felt now is the time when people need a well thought out financial plan the most."  Matthew is currently a Registered Investment Adviser Representative (RIA) with Cambridge Capital Management.  He is also working toward his Certified Financial Planner designation.

"Being able to serve others on a daily basis is a dream come true" says Matthew.  My goal has always been to give our clients a level service that exceeds their expectations.  I feel taking the time to listen to our clients' personal goals and needs and then developing a customized plan that makes sense to accomplish those goals,  has meant a lot to our clients."

Matthew holds a Bachelor of Arts in Finance from the University of Utah.  He is fluent in both English and Spanish.  He is also a member of the Edwardsville / Glen Carbon Chamber of Commerce and Business Networking International. 

Matthew, his wife Camille, and three children reside in Glen Carbon, IL.  He enjoys spending time with his family, playing golf and oil painting.  Matthew coaches youth soccer and loves taking his family on vacations around the country.

Jennifer Schaltenbrand
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A member of Cambridge Capital Management's Operation support staff, Jennifer works with our financial planners and clients helping manage client relations and new business services. She also assists with office technology, maintenance of client records, and scheduling within the firm . "One of my favorite aspects about my role at the firm is that our clients know they can call me for anything they need. They know I'll make sure they are taken care of promptly." Jennifer graduated from Eastern Illinois University with a bachelors in Business Management. She resides with her husband, Jeff, and their three children in Millstadt. When she's not busy being a mother to twins and their older sister, Jennifer enjoys volunteering in her children's school.