Viasystems Group, Inc. provides multi-layer printed circuit boards (PCBs) and electro-mechanical solutions worldwide. The company operates through two segments, Printed Circuit Boards and Assembly. Its electro-mechanical solutions include various products and services, such as backplane assembly; PCB assembly, which involves attaching electronic components to PCBs and backplanes; fabrication of custom and standard metal enclosures, cabinets, racks, sub-racks, and bus bars; systems integration; final assembly; product testing; and fulfillment. The company also offers various manufacturing services, which include engineering and prototyping, PCB and backpanel fabrication, printed circuit board assembly, backpanel assembly, custom metal enclosure fabrication, full system assembly and test, packaging and global distribution, supply chain management, and after-sales support. Its products are used in automotive engine controls, hybrid converters, automotive electronics for navigation, safety and entertainment, telecommunications switching equipment, data networking equipment, computer storage equipment, semiconductor test equipment, wind and solar energy applications, off-shore drilling equipment, communications applications, and flight control systems, as well as complex industrial, medical, and other technical instruments. Viasystems Group, Inc. markets its products and services to original equipment manufacturers and contract electronic manufacturers through its own sales and marketing organization, as well as through relationships with independent sales agents. The company was formerly known as Circo Technologies, Inc. and changed its name to Viasystems Group, Inc. in January 1997. Viasystems Group, Inc. was founded in 1996 and is headquartered in St. Louis, Missouri. As of May 31, 2015, Viasystems Group, Inc. operates as a subsidiary of TTM Technologies Inc.