Ironlight Group closed a $21 million Series A round to grow the infrastructure for tokenized securities, aiming to scale its alternative trading system (ATS) and the technology stack used to issue, distribute and trade digital securities. The privately held Austin, Texas firm said the financing came from institutional investors and financial services executives, led by former TD Bank president and CEO Greg Braca, with participation from the Sei Development Foundation.
The proceeds will be used to develop Ironlight’s marketplace and settlement capabilities, including enhancements to Ironlight Markets, its ATS and settlement platform. Ironlight operates as a broker-dealer and runs an ATS for both digital and traditional securities under SEC Regulation ATS and FINRA oversight. The company says its platform supports tokenized instruments across multiple asset classes — private equity, fixed income, structured products, private credit and real estate — and that blockchain-based settlement is intended to simplify post-trade workflows for institutional investors and wealth advisers.
Sei Development Foundation participation and ecosystem context
The Sei Development Foundation, a U.S.-based nonprofit launched in 2025 to accelerate adoption of the Sei blockchain, took part in the round. The New York–based foundation funds developer programs, education and ecosystem partnerships to grow the Sei network. In March 2025 it explored a proposal to acquire genetic testing company 23andMe during that company’s bankruptcy process, pitching blockchain-based user control of genetic data; that proposal did not result in a transaction.
The foundation has pursued additional collaborations. In February, Nasdaq-listed AIxCrypto announced a strategic technology partnership with the Sei Development Foundation to investigate AI and blockchain integrations. In the first quarter of 2026, Bhutan’s sovereign wealth fund Druk Holding and Investments (DHI) said it would deploy and operate a validator on the Sei network in collaboration with the foundation as part of Bhutan’s digital transformation initiatives.
About Sei and token metrics
Sei is a layer-1 blockchain launched in 2023 focused on infrastructure for decentralized applications and digital-asset trading. It has backing from investors including Multicoin Capital, Jump and Coinbase Ventures. According to CoinGecko data cited by the company, the SEI token traded near $0.069, up about 11% over seven days, with a market capitalization around $465 million; the token’s peak was above $0.37 in mid-2025.
As interest in tokenized securities grows across private markets and alternative assets, Ironlight said the new funding will accelerate development of its marketplace and settlement features to support wider institutional adoption. Readers are encouraged to verify details independently.