VESSL AI, founded in 2020 by Jaeman Kuss An (CEO), Jihwan Jay Chun (CTO), Intae Ryoo (CPO), and Yongseon Sean Lee, provides an end-to-end MLOps and LLMOps platform for companies building custom large language models and vertical AI agents. Its core advantage is cost efficiency: a multi-cloud strategy combined with spot instances and intelligent orchestration that the company says reduces GPU expenses by up to 80 percent. VESSL supports training, fine-tuning, and model serving, and counts roughly 50 enterprise customers including Hyundai, LIG Nex1, TMAP Mobility, Yanolja, Upstage, ScatterLab, and Wrtn. With teams in South Korea and a San Mateo office in the U.S., the company raised a $12M Series A in October 2024 from investors including A Ventures, Ubiquoss Investment, Mirae Asset Securities, Sirius Investment, SJ Investment Partners, Wooshin Venture Investment, and Shinhan Venture Investment, bringing total funding to $16.8M.