Powin Energy
OTCMKTS:PWONPowin Energy Corporation designs, develops, manufactures, and provides integrated battery energy storage systems for utility-scale, commercial and industrial, and microgrid applications. Its primary product is the Stack140, a modular, flexible, purpose-built battery string that is scalable from a single unit to multiple megawatts of capacity. The company was founded in 1989 and is headquartered in Tualatin, Oregon.
Sigma Labs
NASDAQ:SGLBSigma Labs, Inc., a software company, provides in-process quality assurance software to the additive manufacturing industry. It offers PrintRite3D, an integrated hardware and software edge computing platform that combines inspection, feedback, data collection, and critical analysis. The company also provides PrintRite3D Direct Energy Deposition for metal parts and PrintRite3D Selective Laser Sintering, for polymer materials. It serves aerospace, defense, oil and gas, bio-medical, and power generation industries. The company was formerly known as Framewaves Inc. and changed its name to Sigma Labs, Inc. in September 2010. Sigma Labs, Inc. was incorporated in 1985 and is headquartered in Santa Fe, New Mexico.
Trans-Lux
OTCMKTS:TNLXTrans-Lux Corporation designs and manufactures digital display solutions and fixed digit scoreboards. It operates in two segments, Digital Product Sales; and Digital Product Lease and Maintenance. The Digital Product Sales segment sells indoor and outdoor digital product signage products. The Digital Product Lease and Maintenance segment is involved in the lease and maintenance of indoor and outdoor digital product signage. The company offers LED display systems for use by sports arenas and stadiums; financial institutions, including brokerage firms, banks, energy companies, insurance companies, and mutual fund companies; educational institutions; outdoor advertising companies; corporate and government communication centers; retail outlets; casinos, racetracks, and other gaming establishments; airports, train stations, bus terminals, and other transportation facilities; movie theatres; and health maintenance organizations, as well as in various other applications. It also provides TLVision, which consists of full-color video products for use in posting alphanumeric data and displaying of full HD video; and turnkey installation and support services. The company markets its products through direct sales representatives, and a network of independent dealers and distributors in the United States and Canada; and internal sales people and independent distributors in the rest of North America, Europe, the Middle East, South America, Africa, the Far East, and Australia. Trans-Lux Corporation was incorporated in 1920 and is headquartered in New York, New York.