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November 10 , 2021 similarweb Similarweb Announces Third Quarter 2021 Results Above Guidance Range Third quarter 2021 revenue grew 46 % year - over - year to $ 35.6 million . Exceeds $ 150M of ARR . NRR for customers with ARR of $ 100K or more increases to 122 % . 245 customers with ARR of $ 100K or more , an increase of 48 % year - over - year . Raises revenue guidance for full - year 2021 . TEL AVIV , Israel -- ( BUSINESS WIRE ) -- Similarweb Ltd. ( NYSE : SMWB ) ( " Similarweb " or the " Company " ) , a leading platform for digital intelligence , today announced financial results for its third quarter ended September 30 , 2021 . " Q3 was Similarweb's best quarter yet . We continued to execute well , and I'm especially pleased that we exceeded $ 150M in ARR , just one year after we reached the $ 100M ARR milestone , while driving record NRR across the business . Similarweb delivers powerful data and insights that helps companies understand their markets better than their competitors , take action faster , and grow their revenues . In Q3 we continued our strong revenue growth , expanded our existing customer relationships , and achieved breakthrough deals with new products . These results reinforce our confidence in our opportunity , our strategy , and the investments we're making in our future , ” said Or Offer , Founder and CEO of Similarweb . Third Quarter 2021 Financial Highlights • Total revenue was $ 35.6 million , an increase of 46 % compared to the third quarter of 2020 . • GAAP operating loss was $ ( 16.7 ) million , compared to $ ( 4.8 ) million for the third quarter of 2020 . • Non - GAAP operating loss was $ ( 13.9 ) million , compared to $ ( 2.4 ) million for the third quarter of 2020 . • GAAP earnings per share , basic and diluted , was $ ( 0.23 ) , compared to $ ( 0.40 ) for the third quarter of 2020 . • Free cash flow was $ ( 17.1 ) million , compared to $ ( 2.3 ) million compared to the third quarter of 2020 . • Cash and cash equivalents totaled $ 159.1 million as of September 30 , 2021 , as compared to $ 177.0 million as of June 30 , 2021 . Recent Business Highlights • Dollar - based net retention rate for customers with ARR of $ 100,000 or more increased to 122 % as compared to 114 % in the third quarter of 2020 . • Overall dollar - based net retention rate increased to 110 % as compared to 101 % in the third quarter of 2020 .