COMPANY PROFILE · UPDATED 01 AUG 2026

Twitter

Twitter is a global social networking platform that allows its users to send and read 280-character messages known as “tweets”.

San Francisco, CA

twitter.com ↗

Media & Entertainment Creator Economy & Social Streaming & Content San Francisco Advertising 2020 Watch List Consumer Media Software Companies Software Companies In San Francisco Sofware Companies In San Francisco Social Networking Companies In San Francisco Public Social Network Platforms Software As A Service Companies

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Founded: 2007
Headcount: 4,324
Open roles: 12
Last raised: Post Ipo Equity

Twitter website

LOCATIONS

Where they work

Twitter offices

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San Francisco, CA1355 Market Street, Suite 900

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FUNDING

Capital raised

Total raised

$13,869,191,511

Investors

Kleiner Perkins Union Square Ventures Sequoia Capital Benchmark Spark Capital Craft Ventures Slow Ventures Andreessen Horowitz Insight Partners 1789 Capital 1OAK Group A.M. Management & Consulting (AMMC)Aliya Capital Partners All Blue Capital Alwaleed Bin Talal Al Saud Baron Capital-Bezos Expeditions Binance Bossa Nova Investimentos Brian Pokorny Brookfield CRV (Charles River Ventures)Carthona Capital DFJ Growth DST Global Darsana Capital Partners Dave Holmes Dick Costolo Digital Garage E1 Ventures ESO Fund Elon Musk FLOODGATE Fidelity Investments G Squared Greg Yaitanes Honeycomb Asset Management Institutional Venture Partners (IVP)Jason Port Kevin Rose Key Wealth Advisors Litani Ventures Lowercase Capital Manhattan Venture Partners Marc Andreessen Millennium Technology Value Partners Morgan Stanley Naval Ravikant Pegasus Tech Ventures Qatar Holding Qatar Investment Authority Qatari sovereign wealth fund Quixotic Ventures Ron Conway Strauss Capital Partners T. Rowe Price The Lawrence J. Ellison Revocable Trust Tim Ferriss Vy Capital Witkoff Group

Funding rounds

Series Unknown
Elon Musk, 1789 Capital, Darsana Capital Partners, Manhattan Venture Partners, Bossa Nova Investimentos, E1 Ventures, Pegasus Tech Ventures
$1BMar 19, 2025
Post Ipo Equity
Andreessen Horowitz, Brookfield, A.M. Management & Consulting (AMMC), Baron Capital-, DFJ Growth, Aliya Capital Partners, Fidelity Investments, The Lawrence J. Ellison Revocable Trust, Binance, Carthona Capital, Honeycomb Asset Management, Key Wealth Advisors, Strauss Capital Partners, Witkoff Group, Vy Capital, Sequoia Capital, Qatar Holding, Litani Ventures, Alwaleed Bin Talal Al Saud, Manhattan Venture Partners, Qatari sovereign wealth fund, Qatar Investment Authority
$7.2BMay 4, 2022
Post Ipo Equity
Andreessen Horowitz, Brookfield, A.M. Management & Consulting (AMMC), Baron Capital-, DFJ Growth, Aliya Capital Partners, Fidelity Investments, The Lawrence J. Ellison Revocable Trust, Binance, Carthona Capital, Honeycomb Asset Management, Key Wealth Advisors, Strauss Capital Partners, Witkoff Group, Vy Capital, Sequoia Capital, Qatar Holding, Litani Ventures, Alwaleed Bin Talal Al Saud, Manhattan Venture Partners, Qatari sovereign wealth fund, Qatar Investment Authority
$2.9BApr 4, 2022
Post Ipo Debt
$1.3BMar 1, 2021
IPO
UndisclosedNov 7, 2013
Secondary Market
ESO Fund, G Squared, All Blue Capital, 1OAK Group
$400MSep 8, 2011
Series G
DST Global, DFJ Growth, Alwaleed Bin Talal Al Saud, T. Rowe Price, Lowercase Capital, ESO Fund, Slow Ventures
$400MAug 2, 2011
Secondary Market
Andreessen Horowitz
$80MFeb 9, 2011
Series F
Kleiner Perkins, T. Rowe Price, Insight Partners, Spark Capital, Institutional Venture Partners (IVP), Union Square Ventures, Millennium Technology Value Partners, Benchmark
$200MDec 15, 2010
Series E
$5.2MJan 8, 2010
Series D
Insight Partners, Benchmark, T. Rowe Price, Spark Capital, Institutional Venture Partners (IVP), Morgan Stanley
$100MSep 25, 2009
Series C
Benchmark, Institutional Venture Partners (IVP), Union Square Ventures, Spark Capital, Digital Garage, CRV (Charles River Ventures)
$35MFeb 13, 2009
Series B
Spark Capital, Union Square Ventures, Bezos Expeditions, Digital Garage, Tim Ferriss, Kevin Rose
$15MJun 24, 2008
Series A
Union Square Ventures, Ron Conway, Naval Ravikant, Dick Costolo, Marc Andreessen, Greg Yaitanes, Brian Pokorny, Lowercase Capital, Jason Port, Quixotic Ventures, CRV (Charles River Ventures), Dave Holmes
$5MJul 29, 2007
Seed
FLOODGATE
$25KJan 1, 2007

Funding data via Diffbot, SEC EDGAR filings and company announcements — a round from a filing or announcement links to it

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TECH STACK

How Twitter builds

Extracted from Twitter’s job postings we’ve tracked

×N is how many of Twitter’s open roles mention that technology.

Programming Languages

Objective-C×3 Swift×3 Java×2 JavaScript×2 Bash C++Go

Mobile

Android×3 iOS×3

Frameworks & Libraries

React×2 SwiftUI×2 UIKit×2

DevOps & Infrastructure

Docker/Kubernetes×2 Ansible Chef Docker

Design Tools

Figma×2 Sketch×2

Cloud Platforms

Amazon Web Services

Data Engineering & Warehousing

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OPEN ROLES

Hiring at Twitter

View all 12 open roles →

LEADERSHIP

Founders & key people

Biz Stone

American blogger; co-founder of Twitter

TwitterJellyBeyond MeatMediumBiz & Livia Stone FoundationTwitter VenturesNortheastern UniversityUniversity of Massachusetts BostonWellesley High SchoolUniversity of Massachusetts

Noah Glass

CEO at Olo

OeloFounder CollectiveTwitter VenturesShare Our StrengthTwitterOdeoYale University

Jack Dorsey

American software entrepreneur, Twitter co-founder

BlockTwitterDisneyIndexx.aiBlueskyCash App customer serviceBishop DuBourg High SchoolMissouri University of Science and TechnologyNew York University

Evan Williams

American technology entrepreneur and the founder of Medium.com (born 1972)

MediumObvious VenturesTwitterSara & Evan Williams FoundationObviousOdeoUniversity of Nebraska-LincolnColumbus High School

Noah Glass

American technology entrepreneur

OloFounder CollectiveGoMoboShare Our StrengthPortillo'sThe Culinary Institute of AmericaNewton NorthYale University

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