BigCommerce Results Presentation Deck

Mid market and enterprise focus yielding account growth and opportunities with larger, more complex customers (as of 3/31/23) B 6 +13% YoY 2.4k Q1 +17% 2.5k Q2 +17% 2.6k 2019 Q3 +17% 2.7k Q4 +17% 2.8k Q1 +17% 3.0k Q2 Number of enterprise accounts ($k) +21% 3.2k 2020 Q3 +23% 3.4k Q4 +32% +26% 3.9k 3.6k Q1 Q2 +50% +52% 5.0k 4.8k 2021 Q3 Q4 +51% +38% 5.4k 5.4k Q1 Q2 +9% +15% +16% 5.8k 5.8k 5.6k 2022 Q3* Q4 *Note: Q3 2022 marks the 1 year anniversary of the Feedonomics acquisition Note: Enterprise accounts represent any account with at least one BigCommerce enterprise plan. Year-over-year growth rates may not compute due to rounding. Q1 2023 34

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