Slack Technologies
Maker of the Slack workplace chat app; part of Salesforce from 2021.
At a glance
Who owns it
Owned by Salesforce since 21 Jul 2021.
See all 2People
Rob Seaman (interim CEO) and Cal Henderson (co-founder and CTO)
See all 2
Also on this page: Key facts · Links · Sources · Related pages
- Slack Technologies is an American software company known for the Slack collaboration platform.
- It grew out of Tiny Speck, a startup that made the game Glitch; Slack had been the team's internal tool, and the company took the Slack name in August 2014.
- It went public in June 2019 by direct listing, and Salesforce bought it, closing the deal on 21 July 2021.
Key facts
- Founded
- 2009, as Tiny Speck; renamed Slack Technologies in August 20141
- Headquarters
- San Francisco1
- Owner
- Salesforce (acquisition closed 21 July 2021)1
- Product
- Slack1
Who owns it
Owned by Salesforce since 21 Jul 2021.
Parent company
- Salesforce100%
as of 2026 · acquired for about $27 billion · since 21 Jul 2021 1
Before
Investors until Jul 2021
Andreessen Horowitz (Series A in 2010, as Tiny Speck) 1
People
Led by
- Rob Seaman
interim CEO · since Dec 2025 1
Founded by
- Cal HendersonPerson
co-founder and CTO 2
Links
Sources
Last checked against its sources today
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