# Slack

id: ent_slack  
wikidata: Q17130715  
kind: product  
timeline: /timelines/slack.md  
page: /record/slack  

web-based instant messaging service

## Current state

What the record asserts: open claims that are valid, or primary-sourced at confidence 0.7 or more. Unverified, disputed and review-marked claims are listed below, labelled, not here.

- [Slack](/record/slack.md) | founder | Cal Henderson | valid undated to present | conf 0.70 | valid | [clm_098DA02F9573](/claim/clm_098DA02F9573.md)
  sources: https://www.crunchbase.com/organization/slack, https://www.wikidata.org/wiki/Q17130715
- [Slack](/record/slack.md) | founder | Stewart Butterfield | valid undated to present | conf 0.70 | valid | [clm_5093BC3F1341](/claim/clm_5093BC3F1341.md)
  sources: https://www.crunchbase.com/organization/slack, https://www.wikidata.org/wiki/Q17130715

## All claims

One claim per line, newest first. Superseded claims stay visible.

- [Slack](/record/slack.md) | released | Slack Frontline | valid 2026-10-19 to present | conf 0.70 | valid | [clm_DA6A993B987E](/claim/clm_DA6A993B987E.md)
  sources: https://www.salesforce.com/news/linked-content/every-shift-every-site-every-team-introducing-slack-frontline/
- [Slack](/record/slack.md) | available_in | UK | valid 2026-10-15 to present | conf 0.70 | valid | [clm_F93DAF9A9923](/claim/clm_F93DAF9A9923.md)
  sources: https://www.salesforce.com/news/linked-content/salesforce-pledges-free-slack-enterprise-access-to-millions-of-higher-and-further-education-students-in-the-uk/
- [Slack](/record/slack.md) | founder | Cal Henderson | valid undated to present | conf 0.70 | valid | [clm_098DA02F9573](/claim/clm_098DA02F9573.md)
  sources: https://www.crunchbase.com/organization/slack, https://www.wikidata.org/wiki/Q17130715
- [Slack](/record/slack.md) | x_username | SlackHQ | valid undated to present | conf 0.45 | unverified | [clm_50664740A3E0](/claim/clm_50664740A3E0.md)
  sources: https://www.wikidata.org/wiki/Q17130715
- [Slack](/record/slack.md) | founder | Stewart Butterfield | valid undated to present | conf 0.70 | valid | [clm_5093BC3F1341](/claim/clm_5093BC3F1341.md)
  sources: https://www.crunchbase.com/organization/slack, https://www.wikidata.org/wiki/Q17130715
- [Slack](/record/slack.md) | website | https://slack.com | valid undated to present | conf 0.45 | unverified | [clm_729D10E98B6D](/claim/clm_729D10E98B6D.md)
  sources: https://www.wikidata.org/wiki/Q17130715
- [Slack](/record/slack.md) | website | https://www.salesforce.com/slack/ | valid undated to present | conf 0.45 | unverified | [clm_B2A2E3FEF39B](/claim/clm_B2A2E3FEF39B.md)
  sources: https://www.wikidata.org/wiki/Q17130715
- [Slack](/record/slack.md) | x_username | slackhq | valid 2013-03-26 to present | conf 0.60 | unverified | [clm_23B142D33EA2](/claim/clm_23B142D33EA2.md)
  sources: https://www.wikidata.org/wiki/Q17130715
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