NEM is a community that has developed two blockchains. They are NEM NIS1 and Symbol. NEM NIS1 is the original blockchain offering from NEM, created by the community, and optimized to be a developer’s sandbox. With zero downtime or major outages since 2015, NIS1 is the blockchain you can trust for all your project needs. Symbol is the next-generation enterprise-grade blockchain solution from NEM, purpose-built to help businesses cut costs, reduce complexities, and streamline innovation. With major upgrades in flexibility, security, speed and ease of use, the Symbol platform is the best-in-class blockchain enterprise solution.