On usedby, 126 companies use Miro and 50 use Slack. 3 companies use both, including IBM, Spotify, and Slalom. Miro leads among the IT Services & System Integration companies on usedby that use either tool, Slack among the Artificial Intelligence companies.Latest check Nov 13, 2026: 173 of 176 public lines checked. Counts include every proof level, job-post signals included. A company on both tools counts at any proof level, and a job post on one side is marked as such.
Who uses Miro, Slack, or both
Every company with a public proof for at least one of the two tools.
123
listed for Miro only
3
companies use both
47
listed for Slack only
On usedby, 123 companies are listed for Miro only, 47 are listed for Slack only and 3 use both, out of the 173 companies listed for at least one. An absent listing does not prove non-use.
Who uses both
Companies with a public line on both tools, at any proof level: the strongest proofs come first, and a job post is marked.
| Company |
|---|
 IBM |
 Spotify |
 Slalom |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Miro, Slack or both: a share of the companies on usedby, not of the market.
Listed for Miro onlyBothListed for Slack only
More common with Miro
- IT Services & System Integration26 of the 26 IT Services & System Integration companies on usedby that use either tool use Miro, 2 of them alongside Slack.
- DevTools & Infrastructure6 of the 9 DevTools & Infrastructure companies on usedby that use either tool use Miro.
- Retail7 of the 9 Retail companies on usedby that use either tool use Miro.
More common with Slack
- Artificial Intelligence14 of the 14 Artificial Intelligence companies on usedby that use either tool use Slack.
Source: every usedby line, from confirmed proofs to job-post signals (the weakest proof level).
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Vendor facts checked: Miro, 5 of 6; Slack, 4 of 6. Missing facts remain unverified, not absent features.
MiroSlackWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Miro
Proximie’s Intelligence Suite went from concept to production launch in just nine months
Proximie
Vendor case study, miro.com, published Nov 3, 2025
Slack
that would take someone more than an hour
Mural
Vendor case study, slack.com, captured Nov 12, 2026
saves me four to five hours each week
Isometric
Vendor case study, slack.com, captured Nov 12, 2026
Questions about Miro and Slack
Which is used more, Miro or Slack?
Miro has more customers on usedby: 126 against 50 for Slack. Miro leads among the IT Services & System Integration companies on usedby that use either tool, Slack among the Artificial Intelligence companies.
Do companies use both Miro and Slack?
Yes. 3 companies use both on usedby, including IBM, Spotify, and Slalom.
Who uses Miro?
126 companies on usedby, each with the public page that shows it. See who uses Miro.
Who uses Slack?
50 companies on usedby, each with the public page that shows it. See who uses Slack.
How does usedby count customers?
A company counts when a public page shows it: a vendor's customer page, a case study, a press release or a job post, most saved with a dated capture. Every line is a customer, at one of four proof levels: confirmed, declared by the company itself, observed or signal (a job post, the weakest). A company counts as using both tools when it has a line on each, at any level; the list shows the strongest proofs first and marks job posts.