TESSA Corporation | 89 followers on LinkedIn. From fraction investment to STO (Security Token Offering) | TESSA Inc. is a fintech startup founded in 2019, well known for fractional investments in blue-chip artworks. With approximately KRW 33 billion (USD ~25M) already invested in art and over 140,000 registered members, the service has been operating successfully. A simple search for “TESSA” on Naver reveals numerous press coverages, confirming the company’s leading role in asset securitization and STO (Security Token Offering).