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Note 1 - Nature of Business
12 Months Ended
Dec. 31, 2017
Notes to Financial Statements  
Nature of Operations [Text Block]
Note
1
— Nature of Business
 
Organization and business
 
Proto
Labs, Inc. and its subsidiaries (Proto Labs, the Company, we, us, or our) is an e-commerce driven digital manufacturer of quick-turn, on-demand injection-molded, computer numerical control (CNC) machined,
3D
-printed and
sheet metal-fabricated custom parts for prototyping and short-run production. The Company’s customers are product developers and engineers throughout the world who require a faster and less expensive way to obtain low volumes of parts. The Company’s proprietary technology eliminates most of the time-consuming and expensive skilled labor conventionally required to quote and manufacture parts in low volumes, and its customers conduct nearly all of their business with the Company over the Internet. The Company targets its product lines to the millions of product developers and engineers who use
three
-dimensional (
3D
) computer-aided design (CAD) software to design products across a diverse range of end-markets. The Company has established operations in the United States, Europe and Japan, which the Company believes are among the largest geographic markets where these product developers and engineers are located. The Company’s primary manufacturing product lines currently include Injection Molding, CNC Machining,
3D
Printing and Sheet Metal. Proto Labs, Inc. is located in Maple Plain, Minnesota. The Company’s subsidiaries are:
 
 
Name
 
 
Location
       
 
 
PL-US International LLC
   
United States
 
Rapid Manufacturing Group LLC
   
United States
 
Rapid Sheet Metal LLC
   
United States
 
NH Rapid Machining LLC
   
United States
 
Rapid Wire and Cable LLC
   
United States
 
Proto Labs Ltd.
   
United Kingdom
 
PL Euro Services Ltd.
   
United Kingdom
 
PL International UK LLP
   
United Kingdom
 
PL International Holdings, UK, Ltd.
 
United Kingdom
 
Proto Labs Distribution, Ltd.
   
United Kingdom
 
PL DE Holding GmbH
   
Germany
 
Proto Labs GmbH
   
Germany
 
Proto Labs Eschenlohe GmbH
   
Germany
 
PL Finland Oy
   
Finland
 
Proto Labs AB
   
Sweden
 
Proto Labs, G.K.
   
Japan