Skip to content
Z Zendikt
Vendor trust scorecard

Slack vendor trust score

Trust scoring is the “is this vendor a fair counterparty” question, deliberately separated from product quality. Six dimensions, dated, sourced where events warrant it.

6.8
/10
mixed
Verdict

Slack's vendor trust profile is mixed. The dimension scores below show where to negotiate hard and what to monitor across a multi-year contract.

Vendor Trust Score

Is Slack a trustworthy vendor?

6.8/10
Mixed
Pricing transparency
Published rates; no hidden fees
7.0
Contract fairness
Reasonable terms; no auto-renew traps
6.5
Incident response
How they handle outages and breaches
8.0
Post-acquisition behavior
Customer treatment after M&A or PE
6.0
Executive stability
Leadership churn over 24 months
6.5
Roadmap honesty
Public commitments held
7.0
Trust signal log
  • 2021-07-21
    Salesforce completed acquisition of Slack for $27.7B
    One of the largest enterprise SaaS deals of the decade. Product velocity has visibly slowed since; renewal pricing has crept up; Salesforce cross-sell pressure is a real factor in late-stage commercial conversations.
  • 2023-12-04
    Founder Stewart Butterfield and senior leaders departed
    Multiple senior departures across 2022 to 2024 including founder Stewart Butterfield; consistent with broader post-acquisition pattern at Salesforce.
  • 2024-08-30
    EU Commission accepted Microsoft Teams unbundling commitments after Slack antitrust complaint
    Slack filed the original antitrust complaint in 2020; Commission opened a formal investigation in 2023; closed in 2024 when Microsoft agreed to unbundle Teams. Win for Slack on paper but bundle dynamics already lost.
  • 2025-04-15
    Slack AI add-on pricing reported as opaque and over budget
    Multiple buyer reports of AI add-on quotes running materially over initial estimates; consistent with broader Salesforce AI pricing pattern in 2024 to 2025.
Vendor Trust is scored independently of product quality. A great product from an unfair vendor still earns a low trust score.

How to read this score

  • Trust is separate from product quality. A vendor can ship great software and treat customers badly — or vice versa. We score the two independently.
  • 8.0+/10: strong. Few concerns at renewal or procurement.
  • 6.5–7.9: mixed. Negotiate hard on the lowest dimensions; monitor across the contract term.
  • 5.0–6.4: cautious. Add explicit mitigation language to the master agreement.
  • Below 5.0: concerning. Treat this as a contracted-risk evaluation, not a product-fit evaluation.
  • Updates: we re-verify scoring quarterly. Material trust events (acquisitions, breaches, leadership change, hostile contract terms) get logged on the timeline above.

Related editorial

Last updated 2026-05-10. Scoring methodology: editorial standards. Disagree? Tell us.