Very active in the SBIR arena from soon after being founded and for many years subsequently, in June 2014 Aspen Aerogels began to trade on the NYSE under with symbol ASPN and effectively curtailed any subsequent program involvement even though still - theoretically - SBIR eligible having fewer than 500 employees. Aspen Aerogels, Inc. designs, develops, manufactures, and sells aerogel insulation products primarily for use in the energy infrastructure and building materials markets in the United States, Asia, Canada, Europe, and Latin America. The company offers PyroThin thermal barriers for use in lithium-ion batteries in electric vehicles and energy storage industries; Pyrogel XTE that reduces the risk of corrosion under insulation in energy infrastructure operating systems; Pyrogel HPS for applications within the power generation market; Pyrogel XTF to provide protection against fire; Cryogel Z for sub-ambient and cryogenic applications in the energy infrastructure market; and Spaceloft Subsea for use in pipe-in-pipe applications in offshore oil production. It also offers Spaceloft Grey and Spaceloft A2 for use in the building materials market; and Cryogel X201, which is used in designing cold systems, such as refrigerated appliances, cold storage equipment, and aerospace systems.