Definition: tech bros

(1) (TECHnical BROtherS) Slang for people in the technical community in general. The tech bro archetype is the hyper-masculine bro culture. See brogrammer and oligarch.

(2) (TECHnical BROtherS) Slang for the heads of silicon valley companies. Who's who in this category depends on their age. See oligarch.

Older Tech Bros (Patriarchs)
These tech bros started their companies in the 20th century: Bill Gates and Paul Allen (Microsoft), Steve Jobs and Steve Wozniak (Apple), Sergei Brin and Larry Page (Google), Michael Dell (Dell, Inc.), Larry Ellison (Oracle) and Marc Andreessen (Mosaic browser).

Newer Tech Bros
Starting after 2000, the major tech bros are Elon Musk (Tesla, SpaceX), Mark Zuckerberg (Meta/Facebook), Peter Thiel (Palantir), Sam Altman (OpenAI), Daniela and Dario Amodei (Anthropic) and Jeff Bezos (Amazon).

All of these people are heavily involved with AI, which puts them in the headlines very often. Although Microsoft and Google are also very involved with AI, CEOs Satya Nadella (Microsoft) and Sundar Pichai (Google) get more of today's publicity.

Crypto Tech Bros
Vitalik Buterin (Ethereum) and Brian Armstrong (Coinbase) are considered tech bros in the crypto world. See Ethereum and Coinbase.