BigCommerce Results Presentation Deck

B Company overview BigCommerce at 3/31/23 $317M ARR +13% 1Q23 | +43% 1Q22 +43% 1Q21 $ Consistent revenue growth +9% 1Q23 | +42% 1Q22 +27% 2022 | +44% 2021 ~t F +21% enterprise account ARR growth ~t 77% Q1'23 non-GAAP gross margin $- Customer Target Segments Enterprise Mid-market target: $1M-$50M GMV Large enterprise target: $50M+ 72% of account ARR Non-enterprise SMB target: <$1M GMV 28% of account ARR Note: All statistics as of 3/31/2023 unless otherwise noted and include impact of the acquisition of Feedonomics. $229M Enterprise ARR 72% of total $317M ARR $39,260 enterprise account ARPA +11% 1Q23 | +12% 1Q22 5,828 enterprise accounts +9% 1Q23 | +51% 1Q22 Q1'23 new store launches Including Curology, innovative health and beauty brand; Conn's Home Plus, a leading retailer of furniture, appliances, and electronics; Tottenham Hotspur, one of the world's top football clubs; ASSA ABLOY, a global leader in door-opening solutions used in many of the world's locks and security installations; Harley-Davidson, iconic automotive brand; Diamonds Direct, a worldwide leader in diamond sourcing, selection, education and value 5

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