About Us

TheDiehlCompany_icon-01The Diehl Companies have been in the real estate business for over 30 years. Our founder, Ken Diehl, saw a need for well maintained, clean, and affordable housing in Modesto, CA. Since its founding, The Diehl Companies have grown and now offers a variety of rental housing in Modesto, Ceres, and Keyes as well as some commercial property in South Lake Tahoe and downtown Modesto.

Ken Diehl, a native of Iowa, came to California after World War Two.  After a mid life career change to real estate, he recognized the opportunities in real estate investment. Throughout his life he was very involved in the community from active roles with The Boy Scouts to The California Association of Realtors.

The Diehl Companies is still a family run business, currently operated by Jeff Diehl and Marni Martin. Throughout the years we have continued on our mission of well maintained, clean, and affordable housing.

Our Staff

Jeff Diehl


Real Estate Broker, Contractor


Marni Martin 


Real Estate Agent, Office Manager