A JSJ Company

JSJ Companies: Dake, GHSP, Hudson Technologies, izzy+, McLoone and Sparks. 

A JSJ Company

GHSP is a business of JSJ Corporation. The JSJ Corporation is a privately held collection of growth companies that provide industry-leading durable goods and services globally.



Based in Grand Haven, Michigan, and established in 1919, JSJ reflects the values and entrepreneurial spirit of its founding families -- the Jacobsons, the Johnsons and the Sherwoods. The organization is led today by a blend of family members and professional managers.


The corporation’s six businesses include Dake, GHSP, Hudson Technologies, izzy+, McLoone and Sparks. JSJ provides each business a robust platform of financial and technological support services, strategic-planning tools, business processes, along with talent acquisition and development. JSJ invests in its people, its businesses and its communities.

JSJ businesses provide products and services to global customers ranging in scale from small startups to the largest multinational corporations.  Regardless of their size or location, customers can count on extraordinary value and a true, long-term business partner when dealing with any JSJ company.

Learn More about JSJ Corporation