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Technologies / Polar / Resend

Companies using Polar and Resend

31 companies in our data have public evidence for both Polar and Resend, and 18 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.

31companies use both
52%of Polar users
2%of Resend users
18name both as subprocessors

Companies using one are 8.6 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

CompanyPolarResend
Anyrayanyray.aiAnyray provides inference compression that reduces LLM token usage and costs for organizations.AI and machine learning
BabelBotbabelbot.appBabelBot is a Discord translation bot that translates chat messages in context and can post translations as the original speaker.
Ckvensckvens.comCkvens provides a workspace for lawyers to organize case documents, events, people and assessments in one place.LegalProductivity and collaboration
DataLoamdataloam.ioDataLoam is a VS Code database client with built-in AI that connects to databases and turns plain-English questions into SQL queries.AI and machine learningDeveloper tools
DataXIDdataxid.comDataXID provides agentic notebooks for data analysis and tools for generating and evaluating synthetic data.AI and machine learningData and analytics
Deepererdeeperer.comDeeperer produces research reports by planning, searching and writing them section by section from web sources, with citations quoting each page.
DispatchSEOdispatchseo.comDispatchSEO writes researched, fact-checked SEO articles and publishes them to a customer's site automatically.Marketing
Drupddrupd.comDrupd provides free invoicing software for freelancers that generates PDF invoices with payment links, bank details, or crypto wallet addresses printed on them.Fintech
Enpingenping.appEnping provides a browser widget that lets testers report bugs by pointing at the page and element, and prepares a brief for a coding agent to investigate and fix.Developer tools
Founder Mode Networkfoundermode.networkFounder Mode is a network where founders share updates, ask questions, and get feedback on their startups, through a macOS app, an iOS beta on TestFlight, and the web.
GitNotifiergitnotifier.comGitNotifier sends GitHub pull request notifications to Slack, including review requests, CI failures, and merge alerts.Developer toolsProductivity and collaboration
gotcontext.aigotcontext.ai is a semantic compression MCP gateway that reduces LLM token usage on the context sent to models.AI and machine learningDeveloper tools
ibanchecker.cashBankingFintech
Individuindividu.aiIndividu is an assistant that connects to apps like Gmail, WhatsApp, and Google Calendar to provide briefings, message feeds, and drafted replies.AI and machine learningProductivity and collaboration
InstaSLAinstasla.comInstaSLA turns GitHub security alerts into prioritized, SLA-tracked engineering work with assigned owners and remediation deadlines.CybersecurityDeveloper tools
Keuperakeupera.comKeupera provides SEO and AI-visibility tools, including keyword research, site audits, and automated content creation and publishing.AI and machine learning
Lunarislunaris.appLunaris provides a workspace where a team's notes and tools are kept together, with real-time editing, offline use, and optional extensions.Productivity and collaboration
nexusquantum.legalNexus Quantum Ventures FZCO builds AI systems for regulated legal and financial work that check claims against their sources and declare when evidence is missing.AI and machine learningLegal
Marcomm AImarcomm.worksMarcomm AI runs a company's communications end to end, from drafting and publishing releases to monitoring coverage and tone.AI and machine learningCommunications
0mcp0mcp.io0mcp turns an existing OpenAPI specification into a hosted MCP server that AI agents can call.AI and machine learningDeveloper tools
Ansengineansengine.coAnsEngine is an AI search visibility platform that shows which prompts cause AI models to recommend competitors and what changes the answers.AI and machine learningMarketing
athletedataathletedata.healthathletedata provides an AI coaching service that combines training data from apps and devices like Garmin, Apple Health, Whoop and Oura into a plan that adjusts to the athlete.AI and machine learningConsumer apps
AttendPadattendpad.comAttendPad provides digital attendance sheets for one-time events and daily check-in rooms for recurring time-in and time-out tracking, using QR codes, kiosk mode, and real-time updates.
Capawesomecapawesome.ioCapawesome provides a mobile app DevOps platform with cloud CI/CD, over-the-air live updates, automated app store submissions, and native plugins.Developer tools
Cortalitycortality.comCortality measures how real visitors use every part of a landing page, ranks the fixes, and re-measures each one to show it worked.Data and analyticsMarketing

6 more companies

See every company using both Polar and Resend, with the source for each.

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The two technologies

Polar

Payments

Polar is a billing platform for AI companies that meters usage events such as tokens, agent runs and GPU seconds and bills them automatically. It is used to combine subscriptions, prepaid credits and usage-based charges on one invoice, track margins against inference costs, and sell globally as merchant of record.

Summarized from polar.sh on 9 Nov 2026.

52% of the 60 companies we see using Polar also show the other.

All 60 companies using Polar29 name it as a subprocessorMore in Payments

Resend

Email and communications

Resend is an email platform for developers that delivers transactional and marketing emails. It is used to send emails through an API, SDKs, or SMTP, along with webhooks, contact management, and analytics.

Summarized from resend.com on 8 Nov 2026.

2% of the 1,413 companies we see using Resend also show the other.

All 1,413 companies using Resend1,048 name it as a subprocessorMore in Email and communications

Industries

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

AI and machine learning11Developer tools7Productivity and collaboration4Marketing4Legal2Data and analytics2Fintech2

Other pairs

Companies with their own evidence for both.

More with Polar

Cloudflare60companiesNext.js35companiesVercel30companiesGoogle25companiesGoogle Workspace22companiesAnthropic19companies

More with Resend

Cloudflare1,416companiesStripe945companiesGoogle Workspace848companiesNext.js812companiesVercel763companiesGoogle683companies

Questions

How many companies use both Polar and Resend?

31 companies in StrataDB's data have public evidence for both, and 18 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 Polar and Resend?

Anyray, BabelBot, Ckvens, DataLoam and DataXID, and 26 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Polar and Resend?

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 Polar and Resend

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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