Vortex Racing LLC

River Birch Partners is a private equity firm based in Portsmouth, New Hampshire. The firm prefers to invest in companies based in the Eastern half of the United States, as well as, Utah, Wyoming and Montana, and operating in the aerospace, automotive and heavy truck, engineered industrial components, branded food and consumer packaged goods, industrial minerals and metals, building products and materials, manufacturing of commercial and consumer products, chemicals, packaging, business services, industrial services, distribution and logistics, rubber and plastics, and other outsourced business services sectors.