@jason (@Jason) — Twitter Score 659 out of 1000

Jason is Jason McCabe Calacanis, a serial entrepreneur, angel investor, and media host who founded LAUNCH, a venture fund and accelerator where he serves as CEO, having backed over 1,000 companies including Uber, Robinhood, and Calm. Jason's Twitter Score is 657 out of 1000 (an Excellent rating) as of August 2026, ranking him #141 among 483,944 accounts tracked on this platform, with 1,686,162 followers and 71,845 posts. Jason ranks #141 (top 0.1%) out of 483,944 tracked accounts on TwitterScore.

Jason co-founded Weblogs Inc with Brian Alvey on September 24, 2003; the company was sold to AOL in October 2005 for approximately $25 to $30 million. He previously founded Silicon Alley Reporter and Mahalo, the latter raising $20 million in venture capital from investors including Sequoia Capital, News Corp, CBS, Mark Cuban, and Elon Musk before pivoting and rebranding to Inside.com. While formerly affiliated with Sequoia Capital as an Entrepreneur in Action, he invested $25,000 in Uber when the company was valued at $5 million; as of 2017, that stake was worth roughly $100 million. LAUNCH invests in approximately 100 new startups per year and operates the LAUNCH Syndicate, one of the largest angel syndicates in the world with more than 10,000 accredited investors. Jason is also affiliated with Founder University, a 12-week pre-accelerator program under LAUNCH where top companies receive a $25,000 investment from the fund and can advance to the full accelerator.

Jason founded This Week in Startups and serves as co-host and executive producer of the All-In Podcast, which launched in March 2020 alongside co-hosts Chamath Palihapitiya, David Sacks, and David Friedberg. He also founded This Week in AI, a roundtable podcast featuring AI founders and executives that launched in March 2026. On crypto, Jason has publicly called XRP a centrally controlled security and has criticized VCs who flip tokens to retail investors, describing the practice as a grift and warning it could result in years of litigation and potential criminal charges.

Jason has been mentioned by 2,163 accounts, generating 14,434 total mentions on this platform.

Who follows Jason on X?

Jason draws a broad base of notable followers across the startup and investing community. The accounts that follow Jason include 3,074 founders, 803 angel investors, 972 influencers and 186 VCs, among them Balaji, Nikita Bier, Chris Dixon, Toly, Sam Altman and Elon Musk.