StorageMart
The Firm
StorageMart calls itself the largest privately owned self-storage company in the world, and its own releases put numbers behind the claim: roughly 354 locations across three countries, more than 25 million square feet, 236,000 storage units, and over $10 billion in assets under management. It runs from Columbia, Missouri, and in New York operates the Manhattan Mini Storage brand, a name that has been in the city for over fifty years.
The buying ranges from headline to searcher-sized in the same quarter. In January 2026 it closed fifteen New York City properties totaling 1.3 million rentable square feet, the second-largest self-storage transaction in the city's history. Six weeks later it bought two facilities in Springfield, Missouri, totaling about 81,000 square feet, the size of deal an individual buyer would otherwise chase. It also runs a third-party management arm, so an owner who will not sell can still end up operating under its systems.
For a searcher the read is sober: in storage, the other bidder is often a ten-billion-dollar balance sheet that publishes its confidence in the sector's demand fundamentals. The openings are the markets and deal sizes below its attention, and the exit story is real, because a stabilized facility in a market it wants is exactly what its acquisition team exists to buy.
What It Buys
Columbia, Missouri. Self-storage facilities and portfolios, from two-property deals to the second-largest storage transaction in New York City history, the ceiling-setting bidder in any market it enters.
Selling to them one day, or watching them as the other bidder? Track them in the Contact Book so the relationship has a next-touch date.
Confirmed Deals
2 deals traced to announcements by StorageMart, 2026, newest first. Firms that announce every deal show a fuller run here than firms that report acquisitions as quarterly counts, so read this as the evidence that clears the bar rather than as the firm's whole record.
- Two Springfield, Missouri facilities · March 4, 2026
About 81,000 rentable square feet on West Battlefield Road and East Trafficway Street.
- Fifteen New York City facilities · January 22, 2026
1.3 million square feet and 25,498 units across four boroughs; the second-largest self-storage transaction in NYC history.