R. J. Daum Construction Company was established in 1936 by Raymond J. Daum and Wade A. Perong, and was incorporated in 1949 in the state of Nevada. R. J. Daum Construction Company has been involved in commercial construction since its inception.

Throughout our history, we have developed strong relationships with our clients and sub-contractors. R. J. Daum Construction has been dedicated to the success of our clients as well as the success of our sub-contractors. It is that dedication that has produced the loyalty to sustain our success for over 80 years.


In 2003, R.J. Daum diversified its business status with the experience of another contractor, Parr Contracting. By bringing in Parr Contracting, R.J. Daum was able to self-perform their own concrete work, allowing them the opportunity to be more competitive on projects.

It is the firm’s belief that our long term relationship with our clients and subcontractors established within the construction industry is what has contributed to the longevity of the company; however it is the dedication of R.J. Daum employees that are the key to its success, which has been recognized by McGraw-Hill Publications as one of California’s Top Contractors for several years.