Investor Presentaiton

MSA Exposure - Owned & Managed Portfolio Owned and Managed Total Portfolio at 9/30/23 SmartStop Self Storage REIT, Inc. ...The Smarter Way to Store! MSA/CMA (1) % of Portfolio by NRSF Net Rentable Sq. Ft. # of Stores Units Toronto 18.7% 2,900,355 31 27,955 Miami-Fort Lauderdale 7.4% 1,121,500 11 9,420 Las Vegas 6.0% 916,900 10 7,495 Asheville 5.6% 851,900 14 6,200 Los Angeles 5.0% 757,700 11 7,130 Phoenix 4.6% 707,800 8 5,985 Houston 4.4% 676,800 9 5,130 Tampa 3.1% 478,100 5 3,890 Orlando 3.0% 450,400 5 3,515 Denver 2.9% 434,785 7 3,860 Chicago 2.8% 429,500 6 3,785 Dayton 2.6% 392,400 7 3,340 Seattle Tacoma 2.6% 390,545 5 3,427 San Francisco - Oakland 2.1% 322,600 4 2,920 Port St. Lucie 2.1% 318,900 4 2,610 Sacramento 2.0% 308,100 4 2,895 Riverside - SB 2.0% 306,700 5 2,690 San Diego 1.9% 291,100 3 3,025 Detroit 1.7% 266,100 4 2,220 New York - Newark 1.5% 223,900 2 2,630 Other(2) 17.9% 2,755,180 37 24,878 Total Stores 100.0% 15,301,265 192 135,000 Note: The San Gabriel Property was excluded from these statistics, as it only began formal operations in October of 2023. MSAs (Metropolitan Statistical Areas) as defined by the U.S. Census Bureau. Toronto CMA (Census Metropolitan Area) as defined by Statistics Canada. Other markets include: Baltimore, Cape Coral - Fort Meyers, Charleston, Charlotte, Charlottesville, College Station, Colorado Springs, Dallas, Edmonton (Canada), Jacksonville, Milwaukee, Mobile, Myrtle Beach, Nantucket, Naples, Philadelphia, Portland, Punta Gorda, Raleigh - Cary, San Antonio, Santa Maria - Santa Barbara, Santa Rosa - Petaluma, Sarasota, Stockton, Trenton - Princeton, Vancouver (Canada), Washington - Arlington. None of these markets represent more than 1.5% of the total owned or operated portfolio by NRSF. (1) (2) Investor Presentation | 29

View entire presentation