Since 2009, Gaithersburg-based BuySPRY has refurbished and sold electronic devices through its online storefronts and major marketplaces. Its in-house team uses automated testing, Phonecheck inspections and double quality control to return pre-owned phones, tablets and computers to reliable working condition. BuySPRY says it has sold more than one million refurbished devices, with 150-plus employees and five global distribution centers, while keeping electronic waste out of landfills.