About Us

Our Company

Marni Spring is a manufacturer of high precision, complex metal springs and wire forms. We’ve been in business for over 40 years. Our longevity is based on helping customers resolve spring problems via the least cost optimal solutions.


Our custom springs and wire forms are made from high carbon steel, stainless, alloy steel and copper alloys. Usually, cross sections are round or square with a multitude of diameters available. Complex, high tolerance parts (up to + .001”) are an every day occurrence. Our production volumes range from a few prototypes to millions of units.

Facilities & Equipment

We presently operate with one shift in an 11,000 sq. ft. facility. The company’s location has capacity for an additional 10,000 to 20,000 sq. ft.

Marni has 13 coilers, 14 payoff reels, 2 production grinders, 6 conveyor ovens and a batch oven. Prototyping machinery and equipment includes 7 hand coilers, 8 kick presses, 3 hand grinders, a floor grinder and an engine lathe. Customer tooling is done in-house on a mill, drill press, lathe and surface grinder as well as various hand tools.

Testing equipment consists of 5 different force testers and a variety of calipers, mics, verniers, gauges and hand measuring instruments. Quality documentation includes SPC and CPK. See our page on machinery and equipment details.

Some of Our Customers

Marni Springs currently serves Fortune 500, Inc. 1000 and emerging growth companies. Marni is also a subcontractor to other spring manufacturers. We are a certified supplier to Borg Warner Automotive and Mattel Toys. Marni also does repeat business with Bausch & Lomb, Bernzomatic, Eastman Kodak, IBM, ITT, and Xerox.


We have extensive experience in automotive, cameras, hardware, medical, optical, printers/copiers, and toys. We do business in New York, New England, Maryland, Mexico and Japan.

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