SPIE - Bellingham, WASPIE is the international society for optics and photonics. SPIE organizes 25 conferences annually including SPIE Photonics West. The SPIE Digital Library houses over 500,000 journal and proceedings papers in technologies such as biomedicine, communications, sensors, defense and security, manufacturing, electronics, energy, and imaging.
Vermont Photonics Technologies Corp. - Dummerston, VTUS distributor for Moeller-Wedel Optical GmbH. Optical test, metrology, and quality control equipment: ELCOMAT electronic autocollimators, GONIOMAT electronic goniometers, custom electronic autocollimators, visual autocollimators, collimators, alignment telescopes, dioptometers, spherometers, focometers, interferometers, and refractometers.