BigCommerce Results Presentation Deck

B 71% of ARR from enterprise accounts today, driven by durable growth in mid market and enterprise segments (as of 6/30/23) 47% Q1 48% 50% Q2 Q3 2019 52% % of ARR attributable to enterprise accounts Q4 Q1 Q2 54% 53% 52% 56% 2020 57% 59% Q3 Q4 Q1 Q2 Note: Enterprise accounts represent any account with at least one BigCommerce enterprise plan 63% Q3 2021 64% Q4 67% Q1 70% 71% 72% 72% 2022 71% Q2 Q3 Q4 Q1 Q2 2023 32

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