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Co-Founder & General Partner A*. Co-founder of Sauron, Eventbrite (NYSE: EB), and Xoom (IPO 2013, acquired by PayPal)

419 following37k followers

The Entrepreneur

Serial founder-turned-investor: Co-Founder & General Partner at A*, co-founded Eventbrite and Xoom, and launched Sauron. Kevin tweets product launches, candid SF takes, and interactive startup playbooks that pull builders into the conversation. His feed mixes founder-first advice, bold opinions, and real-world hustle.

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Kevin's idea of a relaxed morning is founding a startup before breakfast and tweeting a take about San Francisco that gets more engagement than your entire product launch, because why launch quietly when you can IPO your opinion instead?

Built and scaled multiple category-defining companies: co-founded Xoom (IPO 2013; later acquired by PayPal) and Eventbrite (NYSE: EB), and now invests in the next wave of enduring founders as a General Partner at A*.

Build enduring companies and platforms that scale, then back the next generation of builders to do the same. He seeks to turn product intuition and networks into lasting impact: better products, safer homes (hello Sauron), and more resilient startup ecosystems.

Founder-first pragmatism, product over process, and that markets reward bold execution. He values clear incentives, scalable technology, and candid conversations, even when they’re uncomfortable. He also believes community + capital accelerates durable startups.

Sharp product instinct, exceptional network and credibility in venture circles, proven execution (multiple exits/IPOs), and the ability to spark high-energy, participatory threads that attract builders and media attention.

Blunt, occasionally polarizing takes that can distract from product narratives; public contrarianism sometimes alienates segments of the audience. Juggling founder, investor, and public roles means attention is limited and messaging can be sporadic.

Double down on high-value, repeatable content: weekly founder threads (playbooks + failure post-mortems), short behind-the-scenes videos of product launches, and a pinned “how to pitch me” thread. Host regular Spaces or AMAs to convert passive followers into engaged builders, lean into visual demos for product launches (Sauron clips sell), and keep political commentary measured, controversy can spark attention but consistent value builds lasting audience growth.

Fun fact: Kevin launched Sauron at Art Basel Miami and ran a Sekai-powered thread that helped a startup pitch format rack up over 1,000,000 views. He’s co-founder of Eventbrite and Xoom (Xoom IPO 2013, later acquired by PayPal), has ~37,974 followers, follows 419 accounts, and has tweeted 779 times.

Top tweets of Kevin Hartz

Taking startup pitches in a fun new way. Reply to this thread and tag @sekaiapp with your wildest idea. Sekai builds a real playable version instantly - right in the replies. Builders, let's see what emerges. Examples below👇

1M

I'm looking for my next Chief of Staff at A* to fill @navyagudimetla’s role. Hugely important role and a fantastic opportunity for any ambitious person looking to break into investing and company creation. DMs are open. Please apply using the airtable link below: airtable.com/appsxc6fPVeWNG


68k

Most engaged tweets of Kevin Hartz

Taking startup pitches in a fun new way. Reply to this thread and tag @sekaiapp with your wildest idea. Sekai builds a real playable version instantly - right in the replies. Builders, let's see what emerges. Examples below👇

1M

Hey @sekaiapp, build a pitch simulator where you pitch me (Kevin Hartz). I’ll rate your TAM, moat, and grit - then tell you if it’s a check or a "let’s keep in touch." Make it pixel-art style.

84k

I'm looking for my next Chief of Staff at A* to fill @navyagudimetla’s role. Hugely important role and a fantastic opportunity for any ambitious person looking to break into investing and company creation. DMs are open. Please apply using the airtable link below: airtable.com/appsxc6fPVeWNG


68k

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