Minerallac Company | 1,116 followers on LinkedIn. Minerallac Company, based in Hampshire, Illinois (USA), is a family owned manufacturer serving the electrical construction market since 1894. The company strives to deliver quality products with outstanding service. Minerallac Company is known for its conduit hangers and one-hole straps in addition to its comprehensive catalog of hardware, fasteners, anchors, beam clamps, tools and related accessories.