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Technologies / Bird B.V. / Slack

Companies using Bird B.V. and Slack

6 companies in our data have public evidence for both Bird B.V. and Slack, 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.

6companies use both
33%of Bird B.V. users
under 1%of Slack users
3name 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

CompanyBird B.V.Slack
All Quietallquiet.appAll Quiet provides alerting, on-call scheduling, incident management, and status pages.Developer tools
Atto Partnersattopartners.comAtto Partners is a strategic design and development studio focused on online software and responsible AI.Design and creativeConsulting and services
Choicelychoicely.comChoicely lets users create native iOS and Android apps by chatting with AI or starting from templates.
Fiestfiest.ioFiest provides a point-of-sale and management platform for restaurants that combines POS, orders, kitchen display, payments and reporting in one flow.Food and restaurants
Pennylanepennylane.comPennylane is a software platform that brings together accounting, invoicing, purchasing, cash management and a business account for companies.Finance and accounting software
ListPluslistplus.aiListPlus helps CRM teams, RevOps and GTM engineers find B2B leads and check and enrich contact data.Sales

The two technologies

Bird B.V.

Email and communications

Bird is a communications platform for developers that provides APIs for sending email, SMS, WhatsApp, Apple Messages, and voice calls from application code. It is used to reach customers across these channels and to track message delivery and call outcomes.

Summarized from bird.com on 8 Nov 2026.

33% of the 18 companies we see using Bird B.V. also show the other.

All 18 companies using Bird B.V.17 name it as a subprocessorMore in Email and communications

Slack

by Salesforce · Productivity

Slack is a collaboration platform where teams chat, share files, and work together in channels. It is used for team communication, connecting apps and agents, and automating everyday work.

Summarized from slack.com on 8 Nov 2026.

under 1% of the 1,934 companies we see using Slack also show the other.

All 1,934 companies using Slack1,341 name it as a subprocessorMore in Productivity

Other pairs

Companies with their own evidence for both.

More with Bird B.V.

Cloudflare18companiesGoogle11companiesAmazon Web Services10companiesGoogle Workspace9companiesStripe7companiesLinkedIn6companies

More with Slack

Cloudflare1,811companiesGoogle Workspace1,578companiesAmazon Web Services1,297companiesStripe895companiesGoogle Tag Manager880companiesGoogle811companies

Questions

How many companies use both Bird B.V. and Slack?

6 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 Bird B.V. and Slack?

All Quiet, Atto Partners, Choicely, Fiest and Pennylane, and 1 more company. Each one links to the evidence behind it.

How does StrataDB know a company uses Bird B.V. and Slack?

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 Bird B.V. and Slack

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