Investor Presentaiton

1 Owned Portfolio Overview as of 9/30/23 5 WA ND MT OR ID WY 11 NV CA 18 9 ONT MN ME WI SD VT MI 13 NH NY MA ΙΑ 6 NE CT UT 8 Co KS MO TN OK AR AZ NM SmartStop Self Storage REIT, Inc. Owned Operating Properties 153 Wholly-Owned Operating Properties 8 Joint Venture Operating Properties 11 SmartStop Self Storage REIT, Inc. ...The Smarter Way to Store! 161 Operating Properties Owned in U.S. and Canada ~65% Concentration In Top 25 MSAs (1) 12.5 Million Net Rentable Square Feet IN OH PA 2 5 MSA/CMA(2) NRSF WV NJ 2 DE Portfolio % by NRSF Units # of Stores Q3 2023 Q3 2023 Ending Occ. Rent POF(4) Toronto KY VA 16 Miami/Ft. Lauderdale 1,810,600 1,121,500 9.0% 14.5% 18,111 21 89.6% $19.81 9,420 11 93.3% 25.54 3 Las Vegas 865,000 6.9% 7,160 9 92.9% 18.56 Asheville 851,900 6.8% 6,200 14 94.4% 16.85 3 Houston 676,800 5.4% 5,130 9 93.7% 17.98 MS AL GA LA Los Angeles 660,400 5.3% 6,200 10 92.6% 26.18 Tampa 478,100 3.8% 3,890 5 92.7% 19.72 Denver 434,785 3.5% 3,860 7 93.5% 17.3 25 Chicago All Other (3) 429,500 3.4% 3,785 6 92.1% 15.38 5,184,445 41.4% 46,622 69 92.7% 19.61 Total Owned Portfolio 12,513,030 100% 110,378 161 92.2% $19.95 Note: Figures reflect wholly-owned JVs at 100% of NRSF. (1) Toronto included as a top 25 MSA. Top 25 MSA's as defined by 2020 U.S. Census Bureau data. (2) MSAs (Metropolitan Statistical Areas) as defined by the U.S. Census Bureau. Toronto CMA (Census Metropolitan Area) as defined by Statistics Canada. (3) Other markets include: Baltimore, Charleston, Charlotte, Charlottesville, College Station, Colorado Springs, Dallas, Dayton, Detroit, Jacksonville, Milwaukee, Mobile, Myrtle Beach, Nantucket, Naples, New York - Newark, Orlando, Phoenix, Port St. Lucie, Punta Gorda, Riverside-SB, Sacramento, San Antonio, San Francisco-Oakland, San Diego, Santa Maria-Santa Barbara, Santa Rosa - Petaluma, Sarasota, Seattle-Tacoma, Stockton, Trenton-Princeton and Washington- Arlington. (4) RentPOF defined as annualized rental revenue net of discounts & concessions, excluding late fees, administrative fees and parking income, divided by occupied square feet of storage. Investor Presentation | 7

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