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Technologies / Grain / Slack

Companies using Grain and Slack

5 companies in our data have public evidence for both Grain 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.

5companies use both
56%of Grain users
under 1%of Slack users
4name both as subprocessors

Companies using one are 6.7 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

CompanyGrainSlack
AtomicVestatomicvest.comAtomic provides a platform for fintechs and financial institutions to offer investing and savings products.Fintech
GoodGoblingoodgoblin.aiGoodGoblin provides college admissions coaching, including essay scoring and feedback, application review, college match odds, and a profile builder.Education
groundcovergroundcover.comgroundcover provides a full-stack observability platform that monitors cloud infrastructure, applications, and AI workloads.Cloud and infrastructure
Marker.ioMarker.io is a website feedback tool that lets reviewers annotate live pages and send issues to project management tools.Developer tools
Flankflank.aiFlank provides AI agents that handle high-volume contracting workflows such as drafting, review, negotiation, and triage, with lawyers reviewing finished work and high-risk items.AI and machine learningLegal

The two technologies

Grain

Productivity

Grain is an AI notetaker and conversation intelligence platform that records video calls, Slack huddles, and in-person meetings. It is used to provide summaries, insights, and coaching feedback and to share meeting data with clients and collaborators.

Summarized from grain.com on 8 Nov 2026.

56% of the 9 companies we see using Grain also show the other.

All 9 companies using Grain7 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 1,926 companies we see using Slack also show the other.

All 1,926 companies using Slack1,335 name it as a subprocessorMore in Productivity

Other pairs

Companies with their own evidence for both.

More with Grain

Cloudflare9companiesGoogle Workspace8companiesStripe7companiesAmazon Web Services6companiesFullStory5companiesGoogle Analytics5companies

More with Slack

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

Questions

How many companies use both Grain and Slack?

5 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 Grain and Slack?

AtomicVest, GoodGoblin, groundcover, Marker.io and Flank. Each one links to the evidence behind it.

How does StrataDB know a company uses Grain 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 Grain 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
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