Slack

Slack

Slack

Slack is a collaboration hub for work, no matter what work you do. It’s a place where conversations happen, decisions are made, and information is always at your fingertips. With Slack, your team is better connected.
Suggest edits
Type
B2b
Founded
2013
Raised
$1.2B
Follow us
Featured on
Also headquartered in San Francisco
Companies in the same industry
Alexa global traffic share
Twitter followers
Terms of Service Privacy Policy Cookie Statement API Integrations Plans & Pricing
Built with ❤︎ by Datalicious ©2019
A daughter company of TNW.
Index.co is not affiliated with Index Ventures.

Overview

Funding 10

Investments 17

Acquisitions 5

Apps 2

People

Add info
Add round
21 Aug 2018
$427,000,000
Venture capital (Series H)
General Atlantic, Dragoneer Investment Group

Slack Raises $427M in Series H Funding

FinSMEs
+3
18 Sep 2017
$250,000,000
Venture capital (Series G)
Accel Partners, SoftBank’s Vision Fund

Slack valued at $5.1 billion with new funding in hand

CNET
+2
01 Apr 2016
$200,000,000
Undisclosed
Comcast Ventures, GGV Capital, Index Ventures, +4

Slack raises $200 million at $3.8 billion valuation

ZDNet
+8
16 Apr 2015
$160,000,000
Venture capital (Series E)
Andreessen Horowitz, Spark Capital, DST Global Solutions, +9

Used Daily By 750K Workers, Slack Raises $160M, Valuing Collaboration Startup At $2.8B

TechCrunch
+5
31 Oct 2014
$120,000,000
Venture capital (Series D)
Andreessen Horowitz, Google Ventures, Kleiner Perkins Caufield & Byers, +3

Slack Communication Hub Raises $120 Million

Re/code
+3
01 Apr 2014
$42,750,000
Venture capital (Series C)
Andreessen Horowitz, Accel

Slack, Stewart Butterfield’s Collaboration Software Startup, Has Raised $42.75M

TechCrunch
04 Apr 2013
Venture capital
FundersClub
01 Apr 2011
$10,700,000
Venture capital (Series B)
Andreessen Horowitz, Accel

Glitch Has Finally Ironed Itself Out: Beta Next Week And $10.7 Million In New Funds

TechCrunch
01 Apr 2010
$5,000,000
Venture capital (Series A)
Andreessen Horowitz, Accel

Stewart Butterfield's Tiny Speck Gets $5M From VCs

Gigaom
22 Mar 2010
Seed fund
SV Angel