The top 10 tech mafia groups in the world

ivelina.biz
3 min readJan 13, 2024

You’ve probably heard of the legendary PayPal Mafia, a group of founders and early employees at PayPal who all went on to start some of the most prominent companies in Silicon Valley.

🔆 Where the term comes from:

Fortune coined the term ‘tech mafia’ in 2007 when they released a piece on the PayPal Mafia along with a photo of some of the members dressed in swanky, gangster-looking attire.

Tech mafia refers to groups of former employees at tech startups, that then went on to found their own successful companies.

I recently wrote a piece for GoingVC on the top 10 tech mafia groups, sourced from the PIN (Power in Numbers) team.

Who are the top 10 tech mafia groups?

Here’s a quick summary of the top 10 tech mafia groups and the most successful companies from each group:

1. The Google Mafia — raised $115 billion and started 2,408 companies so far

⚫ Anthropic AI
Co-founder: Dario Amodei

⚫ Horizon Robotics
Co-founder: Annie Feiwen Tao

⚫ Nuro
Co-founders: Dave Ferguson, Jiajun Zhu

2. The Apple Mafia — 1,011 companies founded & $27 billion raised so far

⚫ WhatsApp
Co-founder: Brian Acton

⚫ LinkedIn
Co-founder: Reid Hoffman

⚫ Salesforce
Co-founder: Marc Benioff

3. The OpenAI Mafia — 21 companies, mostly in the AI sector, and raised $44 billion from top investors

⚫ Anthropic AI
Co-founders: Sam McCandlish, Jack Clark, Tom Brown, Dario Amodei, Benjamin Mann, Daniela Amodei

⚫ Living Carbon
Co-founder: Maddie Hall

⚫ Perplexity AI
Co-founder: Aravind Srinivas

4. The eBay Mafia — 472 have been founded by eBay alumni, and $16.5 billion raised

⚫ YouTube
Co-founder: Steve Chen

⚫ ZipRecruiter
Co-founders: Will Redd, Ian Siegel, Ward Poulos

⚫ GrubMarket
Co-founder: Mike Xu

5. The Microsoft Mafia — 2,474 companies founded by former employees of Microsoft and $69 billion raised in funding

⚫ Airbnb
Co-founder: Nathan Blecharczyk

⚫ Zillow
Co-founder: Rich Barton, Lloyd Frink

⚫ Glassdoor
Co-founders: Rich Barton, Robert Hohman

6. The Twitter Mafia — 334 companies founded, and $55 billion raised

⚫ Compass
Co-founder: Ori Allon

⚫ Block, Inc
Co-founder: Jack Dorsey

⚫ Abnormal Security
Co-founders: Evan Reiser & Sanjay Jeyakumar

7. The Tesla Mafia — founded 140 companies and raised $48 billion

⚫ Substack
Co-founder: Hamish McKenzie

⚫ Sila Nanotechnologies
Co-founder: Gene Berdichevsky

⚫ Swell Energy
Co-founder: Suleman Khan

8. The Amazon Mafia — 774 companies founded and $34 billion raised

⚫ InstaCart
Co-founder: Apoorva Mehta

⚫ Hulu
Co-founder: Jason Kilar

⚫ Flipkart
Co-founder: Binny Bansal

9. The Facebook Mafia — 748 companies started and $18 billion raised

⚫ OpenAI
Co-founder: Wojciech Zaremba

⚫ Yugabyte
Co-founders: Kannan Muthukkaruppan, Karthik Ranganathan, Mikhail Bautin

⚫ Dada Group
Co-founder: Jun Yang

10. The McKinsey Mafia — raised $84 billion in funding so far, and started 1,392 companies

⚫ Aurora Innovation
Co-founder: Sterling Anderson

⚫ Faire
Co-founder: Jeffrey Kolovson

⚫ Glance
Co-founder: Naveen Tewari

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Read the full tech mafia article.

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ivelina.biz

I create content for startups, founders, and VC firms.