Alterra IOS, a dominant force in the industrial outdoor storage (IOS) sector, on Monday announced a major expansion of its national portfolio, headlined by a significant acquisition in the Northern New Jersey market.
The deal includes 11 “best-in-class” properties across the United States, adding 31.6 usable acres and 206,000 square feet of warehouse space to the firm’s already extensive holdings. The acquisition is particularly notable for its focus on high-barrier coastal gateway markets, with a 4.4-acre site in Wharton, New Jersey, serving as one of the largest and most strategic assets in the transaction.
The Wharton property, located within the Northern New Jersey MSA, features 16,620 square feet of warehouse space. This site is emblematic of the current demand for “low-coverage” industrial assets in the region—properties that prioritize paved, outdoor yard space for equipment and fleet storage over traditional high-density warehousing.
Recent market data from late 2025 and early 2026 indicates that industrial vacancy in Northern New Jersey has begun to tighten again, dropping below 6% as new deliveries slow and 3PL (third-party logistics) demand remains resilient.
“This portfolio represents our core thesis: acquiring well-positioned industrial outdoor storage assets with grade-level warehouses and supportive zoning,” Mark Gannon, SVP of Acquisitions at Alterra IOS said. “These properties serve a wide range of tenants across multiple industrial sectors.”
The 11-property portfolio is fully stabilized and 100% leased to a national equipment rental company, providing immediate cash flow and long-term stability.
| Market | Usable Acres | Warehouse Sq. Ft. |
| Wharton, N.J. | 4.4 | 16,620 |
| Cincinnati, OH | 4.4 | 12,998 |
| Whitestown, IN | 4.2 | 19,168 |
| Northville, MI | 4.1 | 21,280 |
| La Porte, TX | 3.6 | 21,366 |
| Twinsburg, OH | 2.8 | 27,007 |
Note: The portfolio also includes sites in Louisiana, California, Illinois, and New York.
Once considered a niche “mom-and-pop” segment, industrial outdoor storage has rapidly institutionalized into a $200 billion market. Alterra, which has now acquired over 400 sites nationwide, remains at the forefront of this shift.
By targeting infill locations near critical infrastructure like the Port of New York and New Jersey, Alterra is positioning itself to capture the “last-mile” needs of companies managing vehicle fleets, shipping containers, and heavy machinery.
The transaction was facilitated by Tom Lasky and Anthony VanVoorhis of Colliers, further signaling the increased involvement of national brokerages in the IOS space.
