When Slack is the right call
Pick Slack if your team chose chat deliberately, the integration ecosystem is load-bearing, and your customers expect Slack Connect. Pay the price, accept the data politics.
Slack vs Teams — and the third option you’re probably overlooking.
A neutral, fact-grounded comparison. Both have their case. Neither is EU-sovereign. That is the third option.
THE FRAMING
Different products, different positioning.
Slack and Microsoft Teams compete on opposite ends of a spectrum: Slack is the deliberate choice (you picked it because you wanted Slack), Teams is the side-effect (you got it because you bought Office 365). Both are American. Both are subject to the CLOUD Act. Neither has an EU-only sub-processor list. The third option — managed, EU-sovereign, modern — is what we are.
FEATURE MATRIX
Slack vs Teams, side by side.
| Slack | Teams | |
|---|---|---|
| Standalone product (not bundled) | ✓ | — |
| Deep integration ecosystem | ✓ | ◐ |
| Bundled with Office 365 | — | ✓ |
| Multi-account on web | — | — |
| 90-day free retention capSlack caps; Teams does not on paid | — | = |
| Slack Connect / cross-org | ✓ | ◐ |
| SharePoint integration | — | ✓ |
| Pricing transparencySlack: opaque AI tier; Teams: bundled SKUs | ◐ | ◐ |
| EU-incorporated company | — | — |
| EU-only sub-processors | — | — |
| No CLOUD Act exposure | — | — |
When Teams is the right call
Pick Teams if you are deeply embedded in Microsoft 365, your bundling math wins, and your procurement is structurally Microsoft-aligned. Note that you are not really choosing Teams — you are accepting it.
THE THIRD OPTION — OMNITEAM
Both have their case. Neither is EU-sovereign. That is the third option.
Neither product was designed with EU sovereignty as an architectural requirement. If sovereignty is in your procurement contract, both fail the requirement equally. We are the third option that takes sovereignty as the starting point, not as a configuration toggle.
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