Supra is a leading global provider of key management solutions. Supra released its first lockbox system in 1955 for the real estate industry. The Supra real estate lockbox system is managed today by real estate associations and Multiple Listing Services for real estate agents to efficiently market and show listed homes.
Supra also offers innovative solutions for automotive, and industrial sectors. For more information about these systems, please visit us at
Our culture is rooted in the core values that guide us:
Product Security Commitment
Supra and Carrier are committed to the cyber security of our products and services. We investigate all credible reports of security concerns affecting our products. If you have a security concern regarding one of our products, please visit our corporate
product security page.