Offchain Labs is a New York based company that is building a suite of scaling solutions for Ethereum. This includes Arbitrum Rollup, the only EVM-compatible rollup that is currently live on an open, public, and full-featured testnet. Arbitrum Rollup instantly scales Dapps, drastically reducing costs and increasing capacity, without sacrificing on security. Porting contracts to Arbitrum requires no code changes or downloads, as Arbitrum is fully compatible with all existing Ethereum developer tooling.