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Postmark

Communicationspostmarkapp.com

134 AI companies list Postmark as a subprocessor or infrastructure vendor, including Simplero, Kaseya and Clay. Last checked Nov 14, 2026.

Adoption
134companies (8%)
134/1636

Companies using Postmark

Showing 60 of 134, A to Z

1PasswordAlephAppointletAptibleArticulateAsanaFrom websiteAthenaHQAttioAutoGPTBlockSurveyBoldSignBooqableBrand24BrightLocalBrowserStackCallHubChameleonChromaCivicClayClerkClientSuccessCM.comCometChatConcordContentsquareConveyorCredlyCriteriaCventDataForSEODealRoomDextDocmostDrataeCardWidgetEmployEpturaEspoCRMFathomFeature UpvoteFeedlyFilloutGammaGeocodioGleapGlitter AIGrowSurfHackerRankHatchetHeartbeatHeron DataHetrixToolsHumaansHunterInEventInroinvolve.meJiminnyKaseya
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Commonly paired with

Share of companies using Postmark that also use each vendor

AWSCloud & Networking
83%
Google CloudCloud & Networking
69%
StripeBilling & Payments
65%
OpenAIFoundation ModelsAI
61%
CloudflareCloud & Networking
51%
SentryObservability
45%
IntercomCRM & Support
44%
SlackCommunications
43%
AnthropicFoundation ModelsAI
43%
AzureCloud & Networking
33%

Alternatives (Communications)

Slack(520)Twilio(420)SendGrid(362)Mailgun(207)Zoom(194)