BigCommerce Investor Day Presentation Deck

B FINANCIALS Enterprise investments driving growing share in B2B and Headless merchants B2B capabilities ~4X ~5X New sales growing* ~4X faster than other use cases GMV per account is ~5X average B2C store UNITED AQUA GROUP USCutter Source: company estimates *BigCommerce Gross New Headless commerce New sales growing* ~3X faster than other use cases ~3X ~5X → Black Diamond TED BAKER GMV per account is ~5X average B2C store LONDON

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