DOSSIER · UPDATED 18 NOV 2025

Five9

Five9 is a leading provider of cloud contact center software for the digital enterprise, bringing the power of cloud innovation to customers and facilitating more than three billion customer interactions annually.

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Founded: 2001
Headcount: 1,216
Open roles: 158
Last raised: Post Ipo Debt · $748M

SECTION I · THE BRIEF

Inside Five9

Brief #41929Updated 18 NOV 2025SAN RAMONEAST BAYPOST IPO DEBT

Employbl Dossier

Five9

Founded: 2001
Headcount: 1,216
Open roles: 158
Last raised: Post Ipo Debt · $748M

Section II · Premium ProfileMembers only

01Engineering interview process at Five9Locked
02Tech stack & infrastructure choicesLocked
03Culture & day-to-day work styleLocked
04Why join now vs. 6 months from nowLocked
05Hiring focus & open headcount by teamLocked
06Comp philosophy and band contextLocked

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LEADERSHIP

Founders & key people

John Sung Kim

Gus Laredo

OPEN ROLES

Hiring at Five9

View all 158 open roles →

FUNDING

Capital raised

Total Amount Raised: $861,600,000

Five9 Funding Rounds

Post Ipo Debt
$747,500,000
Feb 28, 2024
Post Ipo Debt
$747,500,000
Feb 27, 2024
Debt Financing
$30,000,000
Mar 10, 2014
Debt Financing
$30,000,000
Mar 9, 2014
Debt Financing Investors
Oaktree Specialty Lending
IPO
Unknown
Jan 1, 2014
Series D
$22,000,000
May 29, 2013
Debt Financing
$12,500,000
May 29, 2013
Series D
$22,000,000
May 28, 2013
Series D Investors
Sapphire Ventures
Partech
Hummer Winblad Venture Partners
Adams Street Partners
Debt Financing
$12,500,000
May 28, 2013
Debt Financing Investors
City National Bank
Series Unknown
$12,000,000
Apr 19, 2012
Series Unknown
$12,000,000
Apr 18, 2012
Series Unknown Investors
Adams Street Partners
Hummer Winblad Venture Partners
Partech
Series C
$8,600,000
Jan 19, 2011
Series C
$8,600,000
Jan 18, 2011
Series C Investors
Adams Street Partners
Hummer Winblad Venture Partners
Partech
Series Unknown
$12,000,000
Mar 13, 2008
Series Unknown
$12,000,000
Mar 12, 2008
Series Unknown Investors
Hummer Winblad Venture Partners
Mosaic Capital Partners
Partech
Series B
$12,000,000
May 17, 2005
Series B
$12,000,000
May 16, 2005
Series B Investors
Partech
Mosaic Capital Partners
Hummer Winblad Venture Partners
Series A
$5,000,000
Apr 28, 2004
Series A
$5,000,000
Apr 27, 2004
Series A Investors
Hummer Winblad Venture Partners