BigCommerce Results Presentation Deck

B Continued focus on high value enterprise accounts as mix continues to shift further towards larger B2C and B2B merchants 43% 57% 1Q21 Enterprise account ARR as a % of total ARR 41% 59% 37% 63% 36% 64% 33% Enterprise account ARR 67% 2Q21 3Q21 4Q21 1Q22 30% 70% 29% 71% 28% Retail account ARR 72% 28% 72% 2Q22 3Q22 4Q22 1Q23 +54% +58% $123M $112M Enterprise account ARR ($M) +68% +72% $189M +78% $173M $160M 1Q21 2Q21 3Q21 4Q21 1Q22 *Note: Q3 2022 marks the 1 year anniversary of the Feedonomics acquisition +35% +68% $216M $207M +30% $224M +21% $229M 2Q22 3Q22 4Q22 1Q23 23

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