Cooley Advises Underwriters in Proto Labs IPO

San Francisco, Calif. — February 27, 2012 — Cooley LLP is pleased to announce it advised the underwriters in an initial public offering of common stock of Proto Labs, Inc. (NYSE: PRLB). 

Jefferies & Company, Inc. and Piper Jaffray & Co. are acting as joint book-running managers for the offering. William Blair & Company, L.L.C. and Craig-Hallum Capital Group LLC are acting as co-managers for the offering.

The team of Cooley business lawyers advising the underwriters includes San Francisco partner Kenn Guernsey, San Diego partners Charles S. Kim and Sean Clayton, Boston associate Damien Grierson, San Diego associate James Lu and San Francisco associate Amanda Busch.

About Proto Labs

Proto Labs is a leading online and technology-enabled quick-turn manufacturer of custom parts for prototyping and short-run production.  It provides "Real Parts, Really Fast" to product developers worldwide, who are under increasing pressure to bring their finished products to market faster than their competition.  Proto Labs utilizes computer numerical control, or CNC, machining and injection molding to manufacture custom parts for its customers.  Its proprietary technology eliminates most of the time-consuming and expensive skilled labor conventionally required to quote and manufacture parts in low volumes.  Proto Labs' customers conduct nearly all of their business with it over the Internet.   Proto Labs targets its services to the millions of product developers who use three-dimensional computer-aided design, or 3D CAD, software to design products across a diverse range of end-markets.  Proto Labs believes its use of advanced technology enables it to offer significant advantages at competitive prices to many product developers and is the primary reason Proto Labs has become a leading supplier of low-volume custom parts.  Proto Labs is headquartered in Maple Plain, Minnesota.  For more information, visit

About Cooley LLP

Cooley's 650 attorneys have an entrepreneurial spirit and deep, substantive experience, and are committed to solving clients' most challenging legal matters. From small companies with big ideas to international enterprises with diverse legal needs, Cooley has the breadth of legal resources to enable companies of all sizes to seize opportunities in today's global marketplace. The firm represents clients across a broad array of dynamic industry sectors, including technology, life sciences, venture capital, clean energy, real estate and retail.

The firm has full-service offices in major business and technology centers across the United States in Palo Alto, CA, New York, NY, San Diego, CA, San Francisco, CA, Reston, VA, Broomfield, CO, Washington, DC, Boston, MA and Seattle, WA.  The firm also has an office in Shanghai, China.

Related Contacts
Kenneth Guernsey Partner San Francisco, Palo Alto
Charlie Kim Partner San Diego, Los Angeles
Sean Clayton Partner San Diego
James Lu Partner Shanghai, San Diego
Amanda Busch Associate San Francisco
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