March 2023 Investor Presentation

Platform | Portfolio | Balance Sheet | Company Robust Portfolio Growth 1400 1200 Strategically increase the scale of the platform 1,279 Multi-Faceted Growth Strategy Continue to utilize wide variety of avenues to grow the portfolio 1000 800 600 460 400 200 0 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022¹ Wholly-Owned Joint Venture Managed 1. As of December 31, 2022 Brand Awareness Since 2010, increased stores on the platform by 178% Customer Data Points The consistent growth in CubeSmart stores has substantially increased our customer base by -521k since 2010 16

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