About Us

Diamond Mowers, Inc. is a South Dakota Corporation based in Sioux Falls, SD. The Doyle family has a long history in manufacturing and marketing hydraulically driven roadside mowing equipment. Bill Doyle Sr. founded Tiger Mowers in 1969 as 67% owner and President. After selling his stake in the company in 1983, the Tiger distributorship for South Dakota was awarded to Bill Sr. as part of the deal. Bill Doyle Jr. joined the team in 1986 and Tom Doyle became active in the business in 1994. The Doyle's grew this distributorship into one of the top selling Tiger dealers in the nation.

In 2000 the Doyle's decided to form Diamond Mowers, Inc., under the leadership of Bill Doyle, Jr., with the guiding principle that a market existed for a higher quality product and superior customer service. Drawing from the best ideas that Bill Sr. and his team used in the 70's and 80's, Diamond Mowers has taken the manufacturing process to the next level of design and engineering. The initial focus on bending high quality steel rather than welding flat pieces together resulted in significant improvements to the mower design. From that point, we have never wavered in our efforts to continually improve our product.

The employees at Diamond Mowers are asked one question every day. "What can we do to improve the product?" We use high quality components and build the best mowers in the country. Lee Iacocca once made a bold statement about Chrysler Cars. "If you can find a better car...buy it." We at Diamond feel the same way about our mowers. If you can find a better mower with better product support...buy it!


Mission Statement:
Diamond Mowers Inc. has been the leader in Integrated Roadside Vegetation Management with it's full line of industrial mowers, including rotary, flail, and boom mowers, and its innovative Wet Blade system to fit most makes of tractors, skid loaders and construction wheel loaders.

When Diamond Mowers located in Sioux Falls, South Dakota we did so to give our factory a family feel. Here we are able build the highest quality rotary, flail and boom mowers in the industry along with giving our customers the type of service very few companies can do today. Customers can speak directly to our staff of highly trained engineers and installation service technicians about their vegetation needs for weed control or specific questions on all types of mowers. Diamond Mowers also boasts a 72 hour parts shipping guarantee.

With our team of dealers in the field and our staff in Sioux Falls, we are building a force that is second to no one when looking for all your boom mower needs.