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Technologies / Basecamp / Slack

Companies using Basecamp and Slack

6 companies in our data have public evidence for both Basecamp and Slack, and 4 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
40%of Basecamp users
under 1%of Slack users
4name both as subprocessors

Companies using one are 4.9 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

CompanyBasecampSlack
Atarimatarim.ioAI and machine learning
Emailableemailable.comEmailable provides email verification tools that check whether email addresses are valid and deliverable.
FatLab Web Supportfatlabwebsupport.comFatLab provides managed WordPress hosting, maintenance, security, and developer support.
fielddrivefielddrive.comfielddrive provides onsite event technology including check-in kiosks, badge printing, attendee tracking, lead retrieval, and analytics.Data and analyticsHardware and robotics
HubDohubdo.comHubDo provides HubSpot apps and plugins, including CPQ, multi-currency, and UI extension tools, along with custom coding services.Sales
Jatheonjatheon.comJatheon provides data archiving software that captures and retains communications from email, social media, text messages, collaboration tools, and websites.CommunicationsCompliance and risk

The two technologies

Basecamp

Productivity

Basecamp is project management software. It is used to manage projects, coordinate teams, and master your company.

Summarized from basecamp.com on 8 Nov 2026.

40% of the 15 companies we see using Basecamp also show the other.

All 15 companies using Basecamp13 name it as a subprocessorMore in Productivity

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 1,944 companies we see using Slack also show the other.

All 1,944 companies using Slack1,350 name it as a subprocessorMore in Productivity

Other pairs

Companies with their own evidence for both.

More with Basecamp

Cloudflare15companiesStripe12companiesAmazon Web Services11companiesGoogle Workspace11companiesGoogle10companiesGoogle Tag Manager7companies

More with Slack

Cloudflare1,823companiesGoogle Workspace1,587companiesAmazon Web Services1,307companiesStripe899companiesGoogle Tag Manager884companiesGoogle813companies

Questions

How many companies use both Basecamp and Slack?

6 companies in StrataDB's data have public evidence for both, and 4 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 Basecamp and Slack?

Atarim, Emailable, FatLab Web Support, fielddrive and HubDo, and 1 more company. Each one links to the evidence behind it.

How does StrataDB know a company uses Basecamp 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 Basecamp 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