Douglas W. Baltzer incorporated Magnum Builders of Sarasota, Inc. in 1983. Doug decided to start his own company after a very successful career working for a large international construction company. Magnum Builders began by performing light commercial general contracting, swimming pools, and custom residential construction.


In 1988, Michael L. Baltzer joined the firm as Vice President. Magnum Builders expanded into the Public Construction Market at that time. Over the past 34 years, Magnum Builders has been providing quality construction services throughout Southwest Florida.


In 2009, Clint Riley joined the Firm as Magnum's new Chief Estimator. Clint came from a larger construction company with a strong background in pre-construction services in all types of projects including condominiums, educational, institutional, and heavy commercial.