Companies using Cloudflare R2 and PostHog

22 companies in our data have public evidence for both Cloudflare R2 and PostHog, and 12 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.

22companies use both

30%of Cloudflare R2 users

1%of PostHog users

12name both as subprocessors

Companies using one are 4.0 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

Company	Cloudflare R2	PostHog
BoardKiteboardkite.comBoardKite provides an AI board portal that brings agendas, board packs, minutes, decisions, and follow-up into one secure workspace.Productivity and collaboration
Brakkabrakka.noBrakka provides project economy and financial management software for construction projects, covering budgets, contracts, change orders and invoicing.Construction
Fallowfallow.toolsFallow provides codebase intelligence for TypeScript and JavaScript, analyzing health, complexity, duplication, architecture, styling and unused code from one graph of a repository.Developer tools
Flaskflask.doFlask is a video review and collaboration workspace where teams give frame-precise feedback by talking and drawing, and agents can read that feedback, iterate and upload autonomously.Design and creative Media and entertainment
LabCalibrate.comLabCalibrate provides calibration management software for tracking instruments, due dates, certificates, and failed calibrations.Compliance and risk
Lanelaneapp.coLane is a product intelligence platform that reads customer feedback and surfaces what matters.AI and machine learning Customer support
LexAgendalexagenda.roLegal
Midrendermidrender.comMidrender lets AI agents and humans collaborate on motion graphics that stay manually editable.AI and machine learning Design and creative
MindBacklogmindbacklog.comMindBacklog keeps what users said, ranks the problems they have, and hands a coding agent the why, then checks after launch whether it worked.
myDBA.devMyDBA provides continuous PostgreSQL database monitoring and analysis, including query performance tracking, health checks, index recommendations, and incident investigation.
Phonicphonic.aiPhonic provides a speech-to-speech model and voice AI agents for live conversations.AI and machine learning Customer support
Quotainquotain.comQuotain provides AI sales roleplay simulations built from a company's playbook, letting sales reps rehearse prospect-specific conversations with AI buyers and get feedback.AI and machine learning Sales
Area Advertisingareaadvertising.comArea Advertising provides custom printing, embroidery, signs, vehicle graphics, awards, and promotional products.
BetterClawbetterclaw.ioBetterClaw provides always-on AI agents that connect to apps and run jobs on a schedule or when messaged.AI and machine learning Productivity and collaboration
Classentraclassentra.comClassentra provides software for scheduling live lessons, sharing materials, tracking attendance, and collecting payments.Education
Khorvadkhorvad.comKhorvad is an agency-operations company that builds an AI intelligence layer trained on an agency's own data, decisions, and outcomes, which it uses to automate the reporting, briefing, and workflow tasks that consume a head of strategy's time.AI and machine learning Marketing
Spunspun.comSpun provides a shared WhatsApp inbox and WhatsApp CRM for teams on their own WhatsApp number, with optional AI assistance, translation, and follow-up tools.AI and machine learning Communications
anon.lianon.li provides anonymous email aliases, end-to-end encrypted file sharing, and encrypted forms.Cybersecurity
FileChangerfilechanger.ioFileChanger converts files between technical markup formats such as Typst, Org-mode, AsciiDoc, LaTeX, and Markdown, as well as DOCX, PDF, EPUB, images, audio, and video.
Frihetfrihet.ioFrihet is a business management platform that combines invoicing, expenses, taxes, bank reconciliation and client management in one place.Finance and accounting software
histerling.comSterling provides finance operations intelligence software that automates finance and accounting tasks such as payroll checks, invoice filing, bank reconciliation, and management reporting.AI and machine learning Finance and accounting software
TesterArmytester.armyTesterArmy is winding down its testing platform and its team has built e2e, an open source testing framework for web and mobile apps that users run themselves.Developer tools

The two technologies

Cloudflare R2

Cloud and infrastructure

Cloudflare R2 is object storage for storing large amounts of unstructured data. It is used for scenarios such as cloud-native application storage, web content, podcast episodes, data lakes, and batch process outputs like machine learning artifacts.

Summarized from developers.cloudflare.com on 8 Nov 2026.

30% of the 73 companies we see using Cloudflare R2 also show the other.

All 73 companies using Cloudflare R2 44 name it as a subprocessor More in Cloud and infrastructure

PostHog

Analytics

PostHog is a platform that ingests and stores product analytics, errors, session replays, and business data so teams and their AI agents can query and act on it. It is used to answer product questions, investigate issues across tools, and give agents product context.

Summarized from posthog.com on 8 Nov 2026.

1% of the 1,789 companies we see using PostHog also show the other.

All 1,789 companies using PostHog 1,133 name it as a subprocessor More in Analytics

Industries

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

AI and machine learning8 Productivity and collaboration4 Customer support3 Developer tools2 Design and creative2 Finance and accounting software2

Other pairs

Companies with their own evidence for both.

More with Cloudflare R2

Cloudflare74companies

Stripe46companies

Resend43companies

Vercel40companies

Google Workspace37companies

Next.js36companies

Questions

How many companies use both Cloudflare R2 and PostHog?

22 companies in StrataDB's data have public evidence for both, and 12 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 Cloudflare R2 and PostHog?

BoardKite, Brakka, Fallow, Flask and LabCalibrate.com, and 17 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Cloudflare R2 and PostHog?

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 Cloudflare R2 and PostHog

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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