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X Corp (formerly Twitter)

Founders

Who Founded X Corp (formerly Twitter)?

Jack Dorsey, Evan Williams, Biz Stone, Noah Glass · Founded 2006 · HQ today: Bastrop, Texas

Who founded X Corp (formerly Twitter)?

X Corp (formerly Twitter) was founded by Jack Dorsey, Evan Williams, Biz Stone, Noah Glass in 2006. It is now led by Elon Musk.

Founders
Jack Dorsey, Evan Williams, Biz Stone, Noah Glass
Founded
2006
Headquarters
Bastrop, Texas
Number of founders
4
Current CEO
Elon Musk (since 2022)
Where was X Corp (formerly Twitter) founded?
X Corp (formerly Twitter) was founded in San Francisco, California, United States in 2006.
When was X Corp (formerly Twitter) founded?
X Corp (formerly Twitter) was founded in 2006.
Who started X Corp (formerly Twitter)?
X Corp (formerly Twitter) was founded by Jack Dorsey, Evan Williams, Biz Stone and Noah Glass.
How old is X Corp (formerly Twitter)?
X Corp (formerly Twitter) is 20 years old as of 2026.

Founding Story

Twitter was born in 2006 out of the ashes of Odeo, a failed podcasting startup utterly destroyed when Apple launched iTunes podcast support. Desperate for a pivot during a company hackathon, Jack Dorsey pitched an idea heavily inspired by SMS text messaging and AOL instant messenger status updates: a platform where users could text a short status to a single number, which would then be broadcast to all their friends. The strict 140-character limit was a direct technological constraint of SMS text messages at the time. What began as a simple status updater quickly evolved, fundamentally driven by its users (who invented the @ reply and the # hashtag), into the absolute real-time pulse of global news and politics.

Jack Dorsey

Co-founder 2006

Background

American programmer and entrepreneur.

Role at X Corp (formerly Twitter)

Jack Dorsey co-founded Twitter in 2006. As a brilliant but eccentric programmer, he famously sent the absolute first tweet ('just setting up my twttr'). He served two highly controversial stints as CEO, fiercely defending the platform's chronological timeline and minimalist design before being ousted by activist investors, eventually turning his total focus to Bitcoin and Block (Square).

Jack Dorsey was born in 1976 in St. Louis. Education: New York University; Missouri University of Science and Technology; Bishop DuBourg High School.

Evan Williams

Co-founder 2006

Background

American tech entrepreneur.

Role at X Corp (formerly Twitter)

Evan Williams co-founded Twitter in 2006. Having already created and sold Blogger to Google, he provided the critical early venture capital and product vision. He served as an early CEO, aggressively pushing the platform to become a massive global news network before engaging in a bitter, highly publicized power struggle with Dorsey.

Evan Williams was born in 1972 in Clarks. Education: University of Nebraska–Lincoln.

Biz Stone

Co-founder 2006

Background

American designer and entrepreneur.

Role at X Corp (formerly Twitter)

Biz Stone co-founded Twitter in 2006. As the critical creative and communications visionary, he designed the absolute core brand aesthetic (including the iconic Larry the Bird logo) and fiercely defended the platform's early chaotic, free-speech ethos during incredibly turbulent global events like the Arab Spring.

Biz Stone was born in 1974 in San Francisco. Education: Northeastern University; Wellesley High School; University of Massachusetts Boston.

Noah Glass

Co-founder 2006

Background

Co-founded Odeo with Evan Williams.

Role at X Corp (formerly Twitter)

Noah Glass is credited with the name 'twttr' and with pushing the early project inside Odeo. He left in 2006, before Twitter took off. Nick Bilton's 2013 book 'Hatching Twitter' brought his role wider attention. Noah Glass was born in 1981.

X Corp (formerly Twitter): CEO & Leadership History

Full timeline →

Linda Yaccarino

Former CEO

2023 – 2025

Recruited from NBCUniversal as CEO, she serves as the absolute critical, highly experienced advertising executive tasked with resurrecting X's completely devastated core revenue stream.

Elon Musk

Owner; directs X (no separate CEO named)

2022 – Present

As the current Owner and CTO, he completely dismantled the old corporate structure, desperately attempting to pivot the massive, deeply unprofitable social network into an 'Everything App' (X) focused on payments and AI.

Jack Dorsey

Co-founder and former CEO

2006 – 2021

As Co-Founder and two-time CEO, he was the absolute spiritual anchor of the platform, maintaining its chaotic neutrality until massive external pressure forced aggressive content moderation.

Keep researching X Corp (formerly Twitter)

Who Founded X Corp (formerly Twitter)? FAQ

Who were the four founders of Twitter?

Twitter was co-founded in 2006 by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams.

How was Twitter conceived during a company brainstorming session?

In early 2006, when Apple launched podcasting in iTunes and crushed podcast startup Odeo, software engineer Jack Dorsey proposed a simple SMS-based service that allowed users to broadcast short status updates to a group of friends.

What was Noah Glass's critical role in Twitter's origin?

Noah Glass was an instrumental co-founder who coined the original name 'Twttr,' championed its emotional community potential, and worked closely with Dorsey before being ousted by Evan Williams in 2006.

What was Evan Williams' background prior to Twitter?

Evan Williams was already a prominent tech pioneer, having co-founded Blogger (Pyra Labs) and sold it to Google in 2003, providing the seed capital and corporate umbrella (Odeo/Obvious Corp) that birthed Twitter.

What was Biz Stone's contribution to the platform?

Biz Stone was a creative designer and writer who helped define Twitter's brand voice, culture, and user experience, collaborating closely with Dorsey and Williams throughout its explosive early growth.

What other multi-billion-dollar companies did Jack Dorsey launch?

In 2009, Jack Dorsey co-founded digital payments and fintech giant Square (now Block, Inc.), serving as CEO while simultaneously running Twitter for over six years.

What new social protocol did Jack Dorsey fund after leaving Twitter?

Dorsey backed the development of the decentralized AT Protocol and supported Bluesky and Nostr, championing censorship-resistant open social media standards over centralized corporate networks.

How did Jack Dorsey react to Elon Musk's takeover of Twitter?

Dorsey initially endorsed Musk's buyout, rolling over his $1 billion equity stake into private X Corp, believing that Musk's vision of an open, subscription-based protocol aligned with Twitter's original ideals.

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Content is for informational purposes only. Not financial advice. Data sourced from SEC filings, annual reports, and public records. See our full disclaimer and methodology.