About Us

About Donnelly Bros IncDonnelly Bros Inc was started in 1981 by Billy & Susie Donnelly in Berkley, Michigan. For over 30 years, we have been happy serving the injection molding community all across the US, Canada, and Mexico.

Billy and the entire Donnelly Bros Inc Team pride themselves on providing top-quality products and friendly, personal service to their customers, many of whom have been with Donnelly Bros Inc since the beginning!