W Greig & Company

W Greig & Company

William George Greig founded the Miami Beach single family office in 2017, transitioning from his tenure as Portfolio Manager and CIO at William Blair. The firm stewards capital for the Greig family, anchored by Michelle L. Petock, who has served as CEO since inception and oversees all investment strategies. The family's residential footprint spans multiple Di Lido Island properties and commercial holdings in Doral, Florida. Allocations span private equity, private credit, real estate, commodities, and natural resources, complemented by an internally managed hedge fund. The hedge fund's stated emphasis on female-led issuers is a deliberate mandate filter rarely formalized by single-family offices. Geographic interests extend across North America, Europe, Asia, Africa, the Middle East, Oceania, and South America. Family entities control residential assets at 1 E Di Lido Dr and 28 W Di Lido Dr in Miami Beach, plus a commercial property at 6030 NW 102 Ave in Doral. Additional holdings include a sports franchises portfolio and a natural resources portfolio—affirming an asset mix that ties tangible, real-asset wealth to mark-to-market hedge fund strategies. The team remains lean, with no publicly disclosed employee count or LinkedIn presence. What distinguishes this office is its fusion of an internally managed hedge fund mandate with direct real-estate and franchise ownership. Most single-family offices outsource hedge fund exposure; W Greig & Company manages it in-house through a stated gender-lens investing framework—a structural feature that shapes both counterparty selection and public-market posture in ways most peers do not replicate.