Five9
Five9

Five9

DR77Ahrefs DR: 77/100. Top 25%. Measured by Ahrefs. Median 44.Agent41Agent Readiness: 41/100. Above median. Measured by StartupHub.ai. Median 41.Trust88Data Trust: 88/100. Top 25%. Measured by StartupHub.ai. Median 61.

Cloud contact center software provider.

2001Active3,051San Ramon, USA

About

Five9 is a leading provider of cloud contact center software, offering a comprehensive suite of solutions designed to enhance customer engagement and operational efficiency for businesses of all sizes. Their platform leverages AI and automation to deliver intelligent routing, agent assistance, workforce optimization, and analytics.

Competitors & Alternatives (12)

Key facts

Website
five9.com
Headquarters
San Ramon, California, USA
Founded
2001
Employees
3,051
Total funding
$72M (Series D)
Business model
B2B

Funding rounds

Funding rounds raised by Five9
DateRoundAmountLead investors
29 Mar 2013Series D$22MSAP Ventures
1 Apr 2012Funding Round$12M
1 Jan 2011Series C$9M
14 Mar 2008Series C$12M
1 Jan 2005Series B$17M

Tech stack

Detected on five9.com, last scanned 30 Oct 2026.

Auth
Okta
Analytics
Google Tag Manager
CMS / Builders
Salesforce
Email provider
Microsoft 365
Email marketing
Adobe Marketo

Five9 scores 77. Does yours?

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Frequently asked

Is Five9 trustworthy and reputable?

StartupHub's Data Trust & Reputation score for Five9 is 88 out of 100, a trusted rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.

How much funding has Five9 raised?

Five9 has raised a total of $72M in funding. The most recent round on record is Series D.

How many employees does Five9 have?

Five9 has approximately 3,051 people on record.

Public record

SEC filings, insider activity, nonprofit links and pay benchmarks for Five9