The Kirsh family is building out what is expected to be one of the largest family offices created in recent years after its patriarch, Nathan Kirsh, sold his restaurant supply company, Jetro Restaurant Depot, earlier this year for $29 billion, including debt.
The family, made up of Kirsh and his three children and their families, also has kicked off a search process for a head of private investments and a head of public investments. The family currently has a few employees in its small family office and works with outside investment firms. They ultimately expect to have most of their fortune managed through their revamped family office, including oversight of money managed by outside firms.
The number of single-family offices, which manage the fortunes and affairs of a single family, roughly reflects the surge in wealth at the top. Wealth-intelligence firm Altrata estimates there were 9,237 single family offices globally in 2025, an increase from 6,269 in 2019.
A family office’s function varies depending on the desires of the family that forms it. The most sophisticated can manage a family’s fortune as well as provide tax-and-estate planning, legal counsel and concierge services like private planes, bill pay, household staffing and the management of a portfolio of homes.
Joining a family office can come with risks for investment staff compared to working at an institutional investment firm. A patriarch or matriarch could change his or her mind about wanting to have and manage a family office, and opportunities for promotion can be slimmer. Navigating family dynamics, which can grow trickier as a family grows more complex, also is a consideration. Family offices today often need to operate across generations and jurisdictions, according to Citigroup’s 2026 Global Family Office Report, based on its survey of 351 family office clients.
Linda Mirels, one of Kirsh’s children and an immediate past president of UJA-Federation of New York, is heavily involved in the process of building out the family office. She is working with executive search firm BraddockMatthewsBarrett. Members of the family, which also include Kirsh’s other daughter, Wendy Fisher, president of the Solomon R. Guggenheim Foundation board in New York, are located in New York, London, Los Angeles and elsewhere.
The search firm has described the investment chief as having a “rare” mandate to create a family office investment platform from the ground up.
For more information see Juliet Chung “The 94-Year-Old Restaurant Supply Tycoon Building One of the Biggest Family Offices” The Wall Street Journal, September 30, 2026.