Top #5 CAs by issuance volume as of 09/19/22

As Google Trust Services has been available for a few weeks I thought it would be interesting to look at where it stands relative to other CAs based on its issuance volume.

#CA OwnerCertificatesPre-Certificates
AllUnexpiredAllUnexpired
1Internet Security Research Group2,972,072,131270,986,3172,689,923,862233,570,311
2DigiCert115,808,4067,603,151443,129,508138,144,685
3Sectigo580,982,48145,262,868517,794,47746,204,659
4Google Trust Services LLC13,909,548467,650120,070,01321,232,287
5Microsoft Corporation17,56717032,448,45316,959,805

For more on this methodology of counting see this post.

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