WPI, LLC formerly known as Lakeshore Diversified Products (LDP) is a full-service custom injection molding and assembly company.  Founded in 1989, WPI, LLC is a privately held company. With over 100,000 square feet of space, our facility is equipped to handle projects of any size.  We have qualified and trained staff dedicated to providing you with the best service in the industry.

WPI, LLC specializes in insert and encapsulation molding.  Secondary operations are available, including pad-printing, machining & tapping, sonic weld, painting and laser etching.  We serve the consumer products, industrial, commercial, furniture and automotive markets.  We have been ISO 9001 certified since 2005.

Recognizing an important need of our customers, WPI, LLC founded an in-house tooling service in 1994.   In house tool shop gives us advantage over our competition for minor repairs as well as great tool maintenance program.

From start to finish, WPI, LLC is your one source for all of your injection molding requirements!  Our team will take you from design and tooling through manufacturing, fulfillment and shipping, easily and cost effectively.

WPI, LLC is committed in excellence.  Our engineering capabilities consist of program management and product development with prototype and production tooling.  We specialize in filled nylons, acetals and other engineered resins.  We have advanced CAD/CAM & CMM along with APQP and product launch programs to serve our customers.

WPI, LLC does preventative maintenance on all production tooling to ensure that your tools are in excellent condition for the highest quality parts.  With in-house tool shop we can assist in product design and development, reverse engineering , hard prototyping, production tooling, gauging and fixtures along with tooling repair.