Mixpanel

Mixpanel is an event analytics service company that tracks user interactions with web and mobile applications.

Mixpanel
Original authors	Suhail Doshi Tim Trefren
Developer	Mixpanel
Initial release	2009; 16 years ago (2009)
Type	Analysis, web analytics, cohort analysis
Website	mixpanel.com

Data collected is used to build custom reports and measure user engagement and retention.^[1] Mixpanel works with web applications, in particular SaaS, but also supports mobile apps.

History

Mixpanel was founded by Suhail Doshi and Tim Trefren in 2009 and is based in San Francisco, California.^[2] It is backed by Y Combinator, and its list of investors includes Andreessen Horowitz,^[3] Max Levchin and Keith Rabois.^[4] Doshi credits Levchin for Mixpanel's survival and subsequent success.^[5]

In April 2018, founder and CEO Suhail Doshi announced he would step down and become chairman of the board. He was replaced as CEO by Amir Movafaghi.^[6]

In May 2023, Mixpanel launched Mixpanel Marketing Analytics to allow marketers to track event-based analytics.^[7]

In Sept. 2025, Jen Taylor was named CEO.^[8]

Funding

Mixpanel's second funding round happened in December 2014, a Series B round led by Andreessen Horowitz, with $65M raised at a pre-money valuation of $800M.^[9]

Mixpanel's most recent funding round happened in November 2021, raised a Series C round, a $200 million investment on a $1.05 billion valuation from Bain Capital Tech Opportunities.^[10]

Mixpanel–OpenAI security incident (2025)

In November 2025, OpenAI and CoinTracker disclosed that their third-party analytics provider Mixpanel had experienced a security incident involving unauthorized access to part of Mixpanel’s systems.^[11][12] According to OpenAI and CoinTracker, an attacker exported a dataset containing limited customer-identifiable analytics information. Exposed data included names and email addresses associated with API accounts, coarse location metadata, browser and operating-system details, referring websites and organization or user IDs (for OpenAI) and limited transaction summaries (for CoinTracker). No chat data, API request content, logs, passwords, API keys, payment information, wallet addresses, recovery phrases, private keys, tax forms, exchange-connected transaction data, bank account or credit card information, Social Security numbers or other government-issued IDs, or other sensitive data were affected.

OpenAI and CoinTracker removed Mixpanel from their production environments, began notifying impacted users, and initiated a broader review of external vendors. Mixpanel stated that the incidents resulted from a targeted SMS-based social-engineering attack and said it had revoked sessions, rotated credentials, blocked malicious IPs, and engaged external cybersecurity investigators. OpenAI and CoinTracker advised affected users to remain vigilant against phishing or social-engineering attempts.