P.J. Wallbank Springs, Inc., a St. Clair County Company located in Port Huron and founded 35 years ago, is a global leader in clutch return technology specializing in spring pack design and manufacturing. Spring packs are used in a variety of clutched applications, although their most common use is within the clutches of automatic transmissions.
The company has proudly been recognized with the most prestigious ranking as one of America's Fastest-Growing Private companies by Inc. Magazine in it's 2018, 37th Annual List. P.J. Wallbank Springs ranks 4,123 on the 2018 5000 with three-year revenue growth at 84 Percent. The list represents a unique look at the most successful companies within the American economy's most dynamic segment-its independent small businesses. Microsoft, Dell, Domino's Pizza, Pandora, Timberland, LinkedIn, Yelp, Zillow and many other well-known names gained their first national exposure as honorees on the Inc. 5000.