ARRK Product Development Group is the United States operation of Japan-based ARRK Corporation. With headquarters in San Diego, ARRK first established its U.S. operations in New York in 1984. ARRK Product Development Group provides engineering services related to the development of new products. Its operations include the design, engineering, prototyping, tooling and molding of products for original equipment manufacturers. ARRK Product Development Group employs nearly 100 at its San Diego operations. ARRK also operates a product development group in the United Kingdom. Both locations provide rapid prototyping, tooling and molding services to the automotive, aerospace, medical and architectural markets. ARRK Product Development Group s capabilities include stereolithography, selective laser sintering and vacuum casting capacity.