BigCommerce Results Presentation Deck

B (as of 3/31/23) 4 47% 72% of ARR from enterprise accounts today, driven by durable growth in mid market and enterprise segments Q1 48% Q2 50% 2019 Q3 52% Q4 52% Q1 % of ARR attributable to enterprise accounts 53% Q2 54% 2020 Q3 56% Q4 57% Q1 Note: Enterprise accounts represent any account with at least one BigCommerce enterprise plan 59% Q2 2021 63% Q3 64% Q4 67% Q1 70% Q2 2022 71% Q3 72% Q4 72% Q1 2023 32

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