1701 38th Avenue West
Spencer, IA 51301
(712) 339-1290

The Ground Effect lineup of products are manufactured and assembled in our Simonsen Iron Works plant in Spencer, IA. We don't just manufacture our own products, we manufacture a variety of products for many known brands.

State-of-the-Art Manufacturing

Established in 1906, Simonsen Iron Works is a fully integrated, state-of-the-art, advanced manufacturing operation located in Spencer Iowa.  Simonsen specializes in...

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1701 38th Avenue West
Spencer, IA 51301
(712) 339-1290