Sidley Austin LLP is a law firm firm based in Chicago, Illinois that sidley austin is a large global law firm with a broad transactional, regulatory and litigation practice. it is active in securities, investment funds, fintech and digital assets, publishing regular guidance such as its blockchain bulletin. the firm operates from offices across the americas, europe, asia and australia. They serve clients in United States, United Kingdom, European Union, Asia. Sidley Austin LLP is listed on The Token Playbook's vetted provider registry at thetokenplaybook.com/registry/sidley-austin-llp.