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Founder

Eric Costello

Eric Costello founded Slack (2009), and previously worked at Yahoo and Flickr.

Enterprise Software Since 2009
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Network around Eric CostelloEric CostelloEric CostelloSlackSlackCal HendersonCal HendersonLidiane Jones (CEO)Lidiane Jones (CEO)Serguei MourachovSerguei MourachovStewart ButterfieldStewart ButterfieldYahooYahooFlickrFlickr
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The world around Eric Costello — companies founded, co-founders, and where they came from. Hover a node to explore; click to open.

Companies founded by Eric Costello

1
S
Slack Acquired 🦄 Unicorn
Enterprise Software · USA
Co-founder

Co-founders

4
C
Cal Henderson
Co-founded Slack
L
Lidiane Jones (CEO)
Co-founded Slack
S
Serguei Mourachov
Co-founded Slack
S
Stewart Butterfield
Co-founded Slack

Came from

2

Where Eric Costello worked or built before — the roots of the lineage.

Y
Yahoo Acquired
Software & IT · USA
Mafia →
 F
Flickr Acquired
Social · Canada
Mafia →

Also came from Yahoo

See the Yahoo mafia →
A
Abhinav Asthana
A
Amjad Masad
Jordanian-American businessman
A
Amr Awadallah
Egyptian-American computer scientist and entrepreneur
A
Ankit Sobti
B
Brian Acton
American business executive (born 1972)
C
Cal Henderson
British computer programmer and author
C
Colin Kroll
American entrepreneur
D
Danny Zhang
D
Dave Feldman

Also came from Flickr

See the Flickr mafia →
C
Cal Henderson
British computer programmer and author
H
Ham Serunjogi
M
Maijid Moujaled
S
Serguei Mourachov
S
Stewart Butterfield
Canadian entrepreneur and businessman (born 1973)