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Slack
Keep conversations organized with Slack, the smart alternative to email1001-5000 Employees
  • B2B
  • Public Stage
    Publicly traded company
  • Top Investors
    This company has received a significant amount of investment from top investors
  • 4.6
    Highly rated
    Slack is highly rated on Glassdoor, with 4.6 out of 5 stars
  • 4.7
    Work / Life Balance
    Employees rate Slack 4.7/5 on Glassdoor for work / life balance
  • 4.3
    Strong Leadership
    Employees rate Slack 4.3/5 on Glassdoor for faith in leadership
Website
Locations
Company size
1001-5000 people
Total raised
$1B
Markets
SaaSEnterprise SoftwareReal TimeMessagingCollaborationSoftwareUnified Communication
View 0 jobs

Slack Funding

$1B
1414 rounds

Funding Rounds

IPO
Undisclosed amount
IPOApr 2019
U
$250,000,000
UnknownSep 2017$5.1B valuationRead press
Avatar for Softbank
Avatar for Accel
Avatar for Moonshots Capital
Avatar for IVP (Institutional Venture Partners)
F
$200,000,000
Series FApr 2016$3.8B valuationRead press
Avatar for Thrive Capital
Avatar for GGV Capital
Avatar for Comcast Ventures
Avatar for Accel
+2
E
$160,000,000
Series EApr 2015$2.8B valuationRead press
D
$160,000,000
Series DApr 2015$2.8B valuationRead press
Avatar for Horizon Ventures
Avatar for Dst Global
Avatar for Index Ventures
Avatar for Spark Capital
+6
D
$120,000,000
Series DOct 2014$1.1B valuationRead press
C
$42,750,000
Series CApr 2014$250M valuation
Avatar for Accel
Avatar for Andreessen Horowitz
Avatar for Social Capital LP
C
$42,750,000
Series CApr 2014$250M valuation
Avatar for Accel
Avatar for Andreessen Horowitz
B
$10,700,000
Series BApr 2011Read press
Avatar for Accel
Avatar for Andreessen Horowitz
B
$10,700,000
Series BApr 2011Read press
Avatar for Accel
Avatar for Andreessen Horowitz
A
$5,000,000
Series AApr 2010Read press
Avatar for Accel
Avatar for Andreessen Horowitz
A
$5,000,000
Series AApr 2010Read press
Avatar for Accel
Avatar for Andreessen Horowitz
S
$1,500,000
SeedJan 2009Read press
Avatar for Accel
Avatar for Marc Andreessen
Avatar for Bradley Horowitz
S
$1,500,000
SeedJan 2009Read press
Avatar for Accel
Avatar for Marc Andreessen

Investors of Slack

Bradley Horowitz
Angel Investor
Avatar for Bradley Horowitz
VP @ Google
Rounds
S
Spark Capital
VC Firm • New York City
Avatar for Spark Capital
Dedicated to the creation of revolutionary new businesses
Rounds
D
Biz Stone
Angel Investor
Avatar for Biz Stone
Co-founder of Twitter, Medium, and Jelly. Currently investing in early stage.
Jeremy Stoppelman
Angel Investor
Avatar for Jeremy Stoppelman
Co-founder and CEO of @Yelp
Kelly Perdew
Angel Investor
Avatar for Kelly Perdew
GP: Moonshots Capital Early Advisor: Pandora, LinkedIn Investor: ID.me, Harvest.ai (AMZN), Bitium (GOOG) Winner of Apprentice 2 and Father of Twins
Moonshots Capital
VC Firm • Austin
Avatar for Moonshots Capital
Investing in extraordinary leadership
Rounds
U
Softbank
VC Firm • Tokyo
Avatar for Softbank
Rounds
U
SV Angel
VC Firm • San Francisco
Avatar for SV Angel
FundersClub
VC Firm • San Francisco
Avatar for FundersClub
Venture capital online (YC S12)
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Investments of Slack

Twine
Avatar for Twine

Incubated companies

Projektstyrning I Norden AB
Avatar for Projektstyrning I Norden AB
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