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Technologies / Instantly / Slack

Companies using Instantly and Slack

13 companies in our data have public evidence for both Instantly and Slack, and 9 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.

13companies use both
57%of Instantly users
1%of Slack users
9name both as subprocessors

Companies using one are 6.9 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

CompanyInstantlySlack
Frecklefreckle.ioFreckle provides a CLI for running GTM workflows and enrichments from the terminal.Sales
GitProtect.ioGitProtect provides backup and disaster recovery for DevOps platforms including GitHub, Bitbucket, GitLab, Azure DevOps, Jira, Confluence, and Microsoft 365.Developer tools
Glitch Adsglitchads.aiGlitch Ads plans, builds and manages Google and Meta ads for businesses, combining AI tools with a named strategist who reviews and approves campaign changes.Marketing
Massed Computemassedcompute.comMassed Compute provides on-demand cloud GPU instances, bare metal servers, and GPU clusters with preinstalled CUDA.AI and machine learningCloud and infrastructure
Nutrientnutrient.ioNutrient provides document-processing software, including PDF SDKs, integrations, workflow automation, and cloud APIs.Developer tools
Onepinonepin.aiOnepin is an AI voice production agent that turns scripts into voice output by routing them across multiple text-to-speech models, with text cleanup, pronunciation, validation, and automatic fixes.AI and machine learning
Podonospodonos.comPodonos provides a platform for evaluating and analyzing Voice AI models through customizable evaluations and detailed reports.AI and machine learningDeveloper tools
welovealfa.comAlfa provides an AI recruiting platform that sources, screens, and evaluates candidates and syncs them into applicant tracking systems.AI and machine learningHR and recruiting
Xoperoxopero.comXopero provides backup, disaster recovery, and cybersecurity software and hardware products, including Xopero ONE, Xopero Unified Protection, and Xopero Sphere Recovery Drive.Cybersecurity
Jurojuro.comJuro provides an AI-native platform for agreeing and managing contracts end to end.Legal
ListPluslistplus.aiListPlus helps CRM teams, RevOps and GTM engineers find B2B leads and check and enrich contact data.Sales
Namiru.aiNamiru provides an AI agent that answers customer questions, books appointments and captures leads for small venues and service businesses.AI and machine learningCustomer support
SeedForgeseedforge.comSeedForge provides a private profile where founders upload their deck and documents for investors to follow.

The two technologies

Instantly is a platform for cold email outreach, including finding leads, running email campaigns, handling replies, and managing sending infrastructure. It is used by businesses and agencies to generate sales pipeline and reach prospects automatically.

Summarized from instantly.ai on 8 Nov 2026.

57% of the 23 companies we see using Instantly also show the other.

All 23 companies using Instantly13 name it as a subprocessor

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.

1% of the 1,936 companies we see using Slack also show the other.

All 1,936 companies using Slack1,343 name it as a subprocessorMore in Productivity

Industries

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

AI and machine learning5Developer tools3Sales2

Other pairs

Companies with their own evidence for both.

More with Instantly

Cloudflare23companiesGoogle Workspace19companiesStripe19companiesAmazon Web Services15companiesGoogle15companiesOpenAI14companies

More with Slack

Cloudflare1,821companiesGoogle Workspace1,585companiesAmazon Web Services1,305companiesStripe898companiesGoogle Tag Manager884companiesGoogle812companies

Questions

How many companies use both Instantly and Slack?

13 companies in StrataDB's data have public evidence for both, and 9 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 Instantly and Slack?

Freckle, GitProtect.io, Glitch Ads, Massed Compute and Nutrient, and 8 more companies. Each one links to the evidence behind it.

How does StrataDB know a company uses Instantly 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 Instantly 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