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Technologies / Amazon Web Services / Userlist

Companies using Amazon Web Services and Userlist

10 companies in our data have public evidence for both Amazon Web Services and Userlist, and 9 name both in their own subprocessor list. Each company below links to the source for every claim. Our coverage is partial, so this is not everyone.

10companies use both
under 1%of Amazon Web Services users
77%of Userlist users
9name both as subprocessors

Companies using one are 3.3 times as likely as the average company in our data to show evidence of the other.

The companies

Strongest evidence first: a company naming both in its own subprocessor list comes before one seen on its website or in job postings.

Subprocessor listPrivacy policyWebsiteJob postings

CompanyAmazon Web ServicesUserlist
CookieHubcookiehub.comCookieHub provides a consent management platform that handles cookie consent and privacy compliance across multiple regulations.Compliance and risk
Honeybadgerhoneybadger.ioHoneybadger provides error tracking, logging, and application performance monitoring for web apps in production.Developer tools
MessageMediamessagemedia.comSinch Engage (formerly MessageMedia) provides a messaging platform for SMS, MMS, RCS, and WhatsApp, with integrations for tools like HubSpot, Salesforce, NetSuite, Shopify, and Zoho.CommunicationsMarketing
SavvyCal Appointmentssavvycal.appSavvyCal Appointments provides a scheduling engine and API that computes availability, enforces scheduling rules, and books appointments atomically.Healthcare
SavvyCalsavvycal.comSavvyCal provides scheduling links that let recipients overlay their own calendar to find a meeting time.Productivity and collaboration
SignWellsignwell.comSignWell provides legally binding electronic signatures for sending, signing, and tracking documents, and offers a REST API for embedding signing workflows into products.
Sinchsinch.comSinch provides communication APIs and applications for messaging, voice, email, and verification.Communications
Toggltoggl.comToggl provides time tracking and capacity planning software that combines time data with project planning.Productivity and collaboration
Transistortransistor.fmTransistor is a podcast hosting platform for publishing audio and video podcasts and distributing them to podcast apps and players.Media and entertainment
HeyTacoheytaco.comHeyTaco is employee recognition software that lets teammates give tacos to recognize great work, celebrate milestones, and redeem rewards inside Slack and Microsoft Teams.

The two technologies

Amazon Web Services

by Amazon · Cloud and infrastructure

Amazon Web Services is a cloud provider offering a broad set of on-demand computing, storage, database, analytics, and AI services. It is used to build, deploy, and scale applications and workloads in the cloud.

Summarized from aws.amazon.com on 8 Nov 2026.

under 1% of the 5,473 companies we see using Amazon Web Services also show the other.

All 5,473 companies using Amazon Web Services4,296 name it as a subprocessorMore in Cloud and infrastructure

Userlist

Email and communications

Userlist is an all-in-one email marketing platform. It is used to automate email marketing and messaging for SaaS companies.

Summarized from userlist.com on 8 Nov 2026.

77% of the 13 companies we see using Userlist also show the other.

All 13 companies using Userlist11 name it as a subprocessorMore in Email and communications

Industries

Among the companies above, by our own classification of their homepage.

Communications2Productivity and collaboration2

Other pairs

Companies with their own evidence for both.

More with Amazon Web Services

Cloudflare5,268companiesGoogle Workspace3,966companiesGoogle Tag Manager2,583companiesGoogle Analytics2,173companiesGoogle2,045companiesStripe2,029companies

More with Userlist

Cloudflare13companiesGoogle Workspace10companiesStripe10companiesGoogle Tag Manager6companiesHelp Scout6companiesSlack6companies

Questions

How many companies use both Amazon Web Services and Userlist?

10 companies in StrataDB's data have public evidence for both, and 9 of them name both in their own subprocessor list, the strongest evidence we hold. Our coverage is partial, so the real number is higher.

Which companies use Amazon Web Services and Userlist?

CookieHub, Honeybadger, MessageMedia, SavvyCal Appointments and SavvyCal, and 5 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Amazon Web Services and Userlist?

From four kinds of public evidence: subprocessor lists, privacy policies, website code and job postings. Each is kept apart with its source and the date we saw it. A company missing here means we found no evidence, not that it does not use them.

Find every company using Amazon Web Services and Userlist

See the full list with the source for each company, and run the same lookup for any technology from the API, Claude or your browser.

  • Every company and vendor, with its public source
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