John Callaghan

John is a venture and private equity professional at Shea Ventures with a diverse background in real estate development, healthcare, and entrepreneurship. A graduate of USC with dual masters degrees (MBA and MRED), he also holds a General Engineering Contractor license, blending financial acumen with deep operational expertise from his time at Shea Homes.

His personal interests connect deeply with the ocean. As a certified FII Freediver, his passion for marine environments is evident. This interest extends to his professional life, where he founded Ocean Matters, Ltd. , a land-based aquaculture company, demonstrating a unique alignment of his personal and professional pursuits.

He founded a land-based aquaculture company that was successfully acquired by Mowi/Marine Harvest.