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Technologies / Fastmail / Paddle

Companies using Fastmail and Paddle

5 companies in our data have public evidence for both Fastmail and Paddle, and 3 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.

5companies use both
33%of Fastmail users
3%of Paddle users
3name both as subprocessors

Companies using one are 52 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

CompanyFastmailPaddle
Healthchecks.ioHealthchecks.io monitors cron jobs and scheduled tasks by alerting users when expected pings do not arrive on time.Developer tools
RenderFormrenderform.ioRenderForm is a graphics editor for designing templates that automate repetitive image, PDF, or video creation.Design and creativeDeveloper tools
SimpleLocalizesimplelocalize.ioSimpleLocalize provides a web-based translation editor and platform for managing translations and automating localization workflows for software projects.Developer tools
Kirbygetkirby.comKirby is a content management system that stores content in simple text files and folders.
ipapi.co

The two technologies

Fastmail

Email and communications

Fastmail is a paid email hosting service offering email, calendar, and contacts, with options for private email addresses and offline access. It is used by individuals and businesses to send, receive, organize, and manage email, calendars, and contacts across devices.

Summarized from fastmail.com on 8 Nov 2026.

33% of the 15 companies we see using Fastmail also show the other.

All 15 companies using Fastmail12 name it as a subprocessorMore in Email and communications

Paddle

Payments

Paddle is a Merchant of Record platform for digital product businesses that manages payments, billing, sales tax, and compliance across 300+ markets. It is used by SaaS and app companies to sell globally while Paddle handles payment processing, tax, and regulatory obligations.

Summarized from paddle.com on 8 Nov 2026.

3% of the 151 companies we see using Paddle also show the other.

All 151 companies using Paddle72 name it as a subprocessorMore in Payments

Other pairs

Companies with their own evidence for both.

More with Fastmail

Cloudflare15companiesStripe9companiesAmazon Web Services6companiesAnthropic6companiesHetzner6companiesGoogle5companies

More with Paddle

Cloudflare152companiesGoogle Workspace92companiesGoogle70companiesGoogle Analytics61companiesAmazon Web Services56companiesNext.js53companies

Questions

How many companies use both Fastmail and Paddle?

5 companies in StrataDB's data have public evidence for both, and 3 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 Fastmail and Paddle?

Healthchecks.io, RenderForm, SimpleLocalize, Kirby and ipapi.co. Each one links to the evidence behind it.

How does StrataDB know a company uses Fastmail and Paddle?

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 Fastmail and Paddle

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
  • 100 API calls a month, plus MCP and the Chrome extension
  • Work email only. No card, no sales call