tZERO ATS is a securities exchange firm based in New York, New York that tzero group is a us blockchain infrastructure company for tokenized and digital securities, founded in 2014. it operates an sec-regulated alternative trading system, the tzero ats, for secondary trading of digital asset securities, along with broker-dealer subsidiaries including tzero securities and the special-purpose broker-dealer tzero digital asset securities, which provides custody. in december 2025 tzero securities received finra approval to offer retail access to tokenized mutual funds and expanded its ats to 24/7 order entry. backed by intercontinental exchange, the parent of the nyse, tzero announced plans for a 2026 us ipo. They serve clients in United States. tZERO ATS is listed on The Token Playbook's vetted provider registry at thetokenplaybook.com/registry/tzero-ats.