Slack Overview

  • Founded
  • 2009

Founded
  • Status
  • Acquired/​Merged

  • Employees
  • 3,614

Employees
  • Latest Deal Type
  • M&A

  • Latest Deal Amount
  • $27.1B

Slack General Information

Description

Developer of a proprietary business communication platform designed to help people communicate better within the organization. The company's platform offers messaging, voice and video calls, workflow builder, file sharing and other related services, helping companies to increase efficiency and communication.

Contact Information

Website
www.slack.com
Formerly Known As
Tiny Speck
Ownership Status
Acquired/Merged
(Operating Subsidiary)
Financing Status
Formerly VC-backed
Primary Industry
Communication Software
Other Industries
Business/Productivity Software
Parent Company
Primary Office
  • 500 Howard Street
  • San Francisco, CA 94105
  • United States

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Slack Valuation & Funding

Deal Type Date Amount Raised to Date Post-Val Status Stage
17. Merger/Acquisition 21-Jul-2021 $27.1B 00.000 000.00 Completed Generating Revenue/Not Profitable
16. IPO 20-Jun-2019 00.000 00.000 000.00 Completed Generating Revenue/Not Profitable
15. Secondary Transaction - Private 28-Jan-2019 00.000 Completed Generating Revenue
14. Later Stage VC 01-Jan-2019 00.000 Completed Generating Revenue
13. Later Stage VC (Series H) 21-Aug-2018 00000 00.000 00.000 Completed Generating Revenue
12. Later Stage VC 26-Jul-2018 00000 Completed Generating Revenue
11. Later Stage VC (Series G) 18-Sep-2017 00000 00000 00.00 Completed Generating Revenue
10. Secondary Transaction - Private 10-Jan-2017 00000 Completed Generating Revenue
9. Later Stage VC (Series F) 01-Apr-2016 $200M $547M 00.00 Completed Generating Revenue
8. Merger/Acquisition 04-Mar-2016 $8B 000 Cancelled Generating Revenue
To view Slack’s complete valuation and funding history, request access »

Slack Cap Table

Stock # of Shares
Authorized
Par Value Dividend Rate ($) Original
Issue Price
Liquidation Liquidation
Pref. Multiple
Conversion Price % Owned
Series H1 0,000,000 00.000000 00.00 000.00 000.00 00 000.00 0.000
Series H 00,000,000 00.000000 00.00 000.00 000.00 00 000.00 0.000
Series F1 0,000,000 00.000000 00.00 00.0 00.0 00 00.0 0.000
Series G3 0,000,000 00.000000 00.00 00.00 00.00 00 00.00 0.000
Series G2 00,000,000 00.000000 00.0 00.0 00.0 00 00.0 0.000
Series G1 0,000,000 00.000000 00.00 00.0 00.0 00 00.0 0.000
Series G 00,000,000 00.000000 00.00 00.0 00.0 00 00.0 0.000
Series F 00,000,000 00.000000 00.00 00.0 00.0 00 00.0 0.000
Series E1 6,046,840 $0.000100 $0.5 $6.28 $6.28 1x $6.28 1.01%
Series E 26,787,204 $0.000100 $0.48 $5.97 $5.97 1x $5.97 4.47%
To view Slack’s complete cap table history, request access »

Slack Comparisons

Description
Primary
Industry
HQ Location
Employees
Total Raised
Post Valuation
Last Financing Details
Developer of a proprietary business communication platform designed to help people communicate better within the organiz
Communication Software
San Francisco, CA
3,614 As of 2022
00.000
00.00 0000-00-00
000000&0 00.000

0000

orem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore e
0000000000000 00000000
Boston, MA
000 As of 0000
00000
0000 0000-00-00
000000&0 00000

0000

in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat no
000000000000000000000 00000000
Cupertino, CA
000 As of 0000
0000
000000000000 0000
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Slack Competitors (35)

Company Name Financing Status Location Employees Total Raised Last Financing Date/Type Last Financing Amount
Fuze Formerly VC-backed Boston, MA 000 00000 000000&0 00000
0000 Venture Capital-Backed Cupertino, CA 000 0000 000000000000 0000
0000000 00000 0000 Formerly PE-Backed Paris, France 000 000.00 000000&0 000.00
000000 Venture Capital-Backed Amsterdam, Netherlands 00 00.000 00000000000 00.000
0000 00000000 Private Equity-Backed Austin, TX 000 00000 000000000000 00000
You’re viewing 5 of 35 competitors. Get the full list »

Slack Patents

Slack Recent Patent Activity

Publication ID Patent Title Status First Filing Date Technology (CPC) Citations
US-20210385272-A1 Group-based communication apparatus configured to implement operational sequence sets and render workflow interface objects within a group-based communication system Pending 23-Aug-2021 00000000000
US-20210385228-A1 Method, apparatus, and computer program product for selectively granting permissions to group-based objects in a group-based communication system Pending 20-Jul-2021 0000000000
US-11153293-B1 Identity information linking Active 09-Feb-2021 0000000000 0
US-11175806-B1 Utilizing message metadata for improving user interface presentation Active 29-Jan-2021 0000000000 0
US-11153377-B1 Shared channel invitation paths Active 10-Dec-2020 G06F21/604 0
To view Slack’s complete patent history, request access »

Slack Executive Team (33)

Name Title Board Seat Contact Info
Stewart Butterfield Co-Founder, Chief Executive Officer & Board Member
Allen Shim Chief Financial Officer
Cal Henderson Chief Technology Officer & Co-Founder
Shivani Sharma Senior Engineering Manager
Serguei Mourachov Co-Founder and Principal Engineer
You’re viewing 5 of 33 executive team members. Get the full list »

Slack Board Members (11)

Name Representing Role Since
John Doerr III Kleiner Perkins Board Observer 000 0000
John O'Farrell Andreessen Horowitz Board Member 000 0000
M.G. Siegler GV Board Observer 000 0000
Stewart Butterfield Slack Co-Founder, Chief Executive Officer & Board Member 000 0000
You’re viewing 4 of 11 board members. Get the full list »

Slack Signals

Growth Rate

0.80% Weekly
Growth
Weekly Growth 0.80%, 93rd %
-35.5%. 530%

Size Multiple

219x Median
Size Multiple 219x, 100th %ile
0.00x 0.95x. 413Kx

Key Data Points

Twitter Followers

5.5k

Similarweb Unique Visitors

15.0K

Majestic Referring Domains

314

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Slack Former Investors (75)

Investor Name Investor Type Holding Investor Since Participating Rounds Contact Info
ACME Capital Venture Capital Minority 000 0000 000000 0
ADS Ventures Venture Capital Minority 000 0000 000000 0
AME Cloud Ventures Venture Capital Minority 000 0000 000000 0
Accel Venture Capital Minority 000 0000 000000 0
Aglaé Ventures Venture Capital Minority 000 0000 000000 0
You’re viewing 5 of 75 investors. Get the full list »

Slack Investments & Acquisitions (10)

Company Name Deal Date Deal Type Deal Size Industry Lead Partner
00000000 07-Oct-2021 0000 00000 00.000 Clinics/Outpatient Services 00000 000
00000 (000000 30-Apr-2021 0000000000 Application Software
000000 29-Jun-2020 0000000000 000.00 Business/Productivity Software 0000000 0
00000 24-Sep-2018 0000000000 000.00 Business/Productivity Software
HipChat 26-Jul-2018 Merger/Acquisition Communication Software 00000 000
You’re viewing 5 of 10 investments and acquisitions. Get the full list »

Slack Subsidiaries (4)

Company Name Industry Location Founded
Rimeto Business/Productivity Software San Francisco, CA 2016
00000 0000 Corporate Venture Capital San Francisco, CA 0000
000000 00000000000 Automation/Workflow Software San Francisco, CA 0000
00000000 Application Software Castle Rock, CO
To view Slack’s complete subsidiaries history, request access »

Slack Exits (1)

Company Name Exit Date Exit Type Exit Size Status Buyers
0000 0000000 05-Jan-2017 000000000 Completed
  • 00000
To view Slack’s complete exits history, request access »