About
Ian is the Founder and Chairman of Prime Quadrant LP. He has been assisting wealthy families with their financial strategies, investing and structuring for over 30 years. A graduate of the University of the Witwatersrand, Johannesburg, Ian placed first in the South African Institute of Chartered Accountants’ Final Qualifying Examination in Auditing. Ian is a member of the Institute of Chartered Accountants of Ontario, a Certified Investment Management Analyst, a Chartered Life Underwriter and a member of the Society of Trust and Estate Practitioners. Ian has a distinguished track record as an entrepreneur having successfully established, purchased, run and sold several businesses. He was a senior officer at Henry Schein, the world’s largest company serving in-office health-care practitioners, where he established Henry Schein Financial Services and was responsible for the practice management software division, which serves more than 50,000 professional health-care practices in the Un
Position in the VCSift Database
- • 3 investors at Prime Quadrant are tracked.
- • 2,490 investors hold the Founder role in VCSift. Ian Rosmarin is one of them.
- • 2,014 investors are based in Toronto, Ontario, Canada.
Data sourced from 410,343 investor profiles. Updated July 2026.
Investment Focus
- Location
- Toronto, Canada
Contact Information
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