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Twilio Announces Second Quarter 2021 Results ● • Second Quarter Revenue of $ 668.9 million , up 67 % Year - Over - Year Second Quarter Revenue Dollar - Based Net Expansion Rate of 135 % SAN FRANCISCO -- ( BUSINESS WIRE ) -- July 29 , 2021 -- Twilio ( NYSE : TWLO ) , the leading cloud communications platform , today reported financial results for its second quarter ended June 30 , 2021 . " Our strong momentum continued in the second quarter as our revenue growth accelerated at a run rate of more than $ 2.6 billion , ” said Jeff Lawson , Twilio's co - founder and CEO . " Companies across industries are adopting our platform to drive better , more personalized levels of customer engagement , and we remain convinced that we are in the midst of a massive shift that is driving a generational opportunity for Twilio . " Second Quarter 2021 Financial Highlights Revenue of $ 668.9 million for the second quarter of 2021 , up 67 % year - over - year , including $ 46.6 million from Twilio Segment . Outlook Exhibit 99.1 GAAP loss from operations of $ 202.3 million for the second quarter of 2021 , compared with GAAP loss from operations of $ 102.6 million for the second quarter of 2020 . Non - GAAP income from operations of $ 4.2 million for the second quarter of 2021 compared with non - GAAP income from operations of $ 9.5 million for the second quarter of 2020 . GAAP net loss per share attributable to common stockholders , basic and diluted , of $ 1.31 based on 173.4 million weighted average shares outstanding in the second quarter of 2021 , compared with GAAP net loss per share attributable to common stockholders , basic and diluted , of $ 0.71 based on 141.6 million weighted average shares outstanding in the second quarter of 2020 . Non - GAAP net loss per share attributable to common stockholders , basic and diluted , of $ 0.11 based on 173.4 million non - GAAP weighted average shares outstanding in the second quarter of 2021 , compared with non - GAAP net income per share attributable to common stockholders , diluted , of $ 0.09 based on 153.7 million weighted average shares outstanding in the second quarter of 2020 . Key Metrics and Recent Business Highlights More than 240,000 Active Customer Accounts as of June 30 , 2021 , compared to 200,000 Active Customer Accounts as of June 30 , 2020. Active Customer Accounts as of June 30 , 2021 include Twilio Segment customer accounts . Dollar - Based Net Expansion Rate was 135 % for the second quarter of 2021 , compared to 132 % for the second quarter of 2020 . Twilio Segment results do not impact the calculation of this metric in either period . 6,334 employees as of June 30 , 2021 . Closed the acquisition of Zipwhip , a trusted partner to carriers and a leading provider of toll - free messaging in the United States . Announced Twilio Segment Journeys , allowing marketers to build customer journeys on top of the world's # 1 Customer Data Platform . Released Twilio's 2020 Diversity , Equity and Inclusion report , highlighting Twilio's efforts around anti - racism and representation . Twilio is initiating guidance for the third quarter ending September 30 , 2021. This guidance includes the revenue contribution from Twilio Segment , but excludes revenue contribution from the recently closed acquisition of Zipwhip . 1