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Joe Sullivan

Founder, CEO, Partybus
Greater Boston,United States
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Joe Sullivan's Overview

Total Experience17 years
CompanyPartybus
CountryUnited States

Joe Sullivan is a seasoned security executive with extensive experience in cybersecurity, risk management, and legal affairs, particularly within high-profile technology companies. He began his career as a federal prosecutor with the U.S. Department of Justice, specializing in cybercrime. Sullivan later transitioned to the private sector, holding key security leadership roles, including Director of Security and acting CISO at eBay and PayPal, Chief Security Officer (CSO) at Facebook, CSO at Uber, and CSO at Cloudflare. His career has been marked by navigating complex security landscapes, incident response, and shaping security culture within fast-growing tech organizations. He gained significant public attention for his handling of a 2016 data breach at Uber, which led to legal proceedings.

Professional Summary

Joe Sullivan's work history includes a series of influential roles in various companies. Here is a detailed list of his professional journey:

RIIS LLC - Advisor (2024 to Present)
Partybus - Founder, CEO (2024 to Present)
Mapware - Chairman (2023 to Present)
Ex Libris Farm - Owner (2022 to Present)
C10 Labs - Operations Director (2023 to 2024)
Magnifico - Founder & CEO (2023 to 2023)
OfferBoard - Founding Team, Business Development Director (2013 to 2015)

Notable Achievements

Pioneering Security Leadership at Facebook

As one of Facebook's early security leaders (CSO from 2010-2015), he built and scaled the company's security programs during a period of rapid global growth, addressing novel security and privacy challenges.

Chief Security Officer at Uber & Cloudflare

Led global security efforts at Uber (2015-2017) and Cloudflare (2018-2021), responsible for physical and cyber security, trust and safety, and incident response in dynamic and challenging environments.

Federal Prosecutor Specializing in Cybercrime

Served as an Assistant U.S. Attorney for the Northern District of California, where he was a founding member of the Computer Hacking and Intellectual Property (CHIP) unit, prosecuting high-tech crimes.

Shaping Security Practices in Silicon Valley

Through his various roles, Sullivan has influenced security practices and talent development across Silicon Valley, contributing to the broader cybersecurity community dialogue.

Educational Background

Master of Public Policy, International Relations

Pepperdine University - Year 2009

Liberal Arts, Double Major in Philosophy and Theology, Double Minor in Math and Science

Thomas Aquinas College - Year 2005

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Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
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Corporate Finance

Company Overview

Partybus
Total employees5
HeadquartersSan Francisco
Founded2012

Partybus was a Y Combinator-backed startup (W12 batch) that developed an online platform to simplify the process of finding and booking party buses, limousines, and other group transportation options for various events. It aimed to connect users directly with local vehicle operators, streamlining price comparison and reservation.

Partybus Funding Information
$1.7M - Total Funding Raised
$1.7M - Most recent funding amount
2 - Number of funding rounds
Apr 1, 2012 - Latest funding round
Lead Investors:
Y Combinator
SV Angel
Alexis Ohanian
Garry Tan
Paul Buchheit
Start Fund
Yuri Milner

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