BigCommerce Investor Day Presentation Deck

B FINANCIALS BigCommerce is an enterprise ecommerce SaaS business $189M Enterprise ARR 67% of total $280M ARR 3-year ARR CAGR: 55% +68% YOY 1Q22 >80% of platform GMV from enterprise accounts $ — ㅏ BigCommerce today Enterprise plans 67% of account ARR Non-enterprise 33% of account ARR ta 118% Net Revenue Retention (2021) $35,225 annual average revenue per account 5,365 enterprise accounts Note: All statistics as of 3/31/2022 unless otherwise noted, represent Enterprise accounts, and include impact of the acquisition of Feedonomics and the COVID-19 pandemic.

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