Backing generational founders since 2005 🗽

New York, NY
Joined November 2009
Thank you to all of the wonderful founders and friends of FirstMark who joined us at Dante last night for the 2026 Founder Dinner. It was a fantastic night for all of the FirstMark community. See you next year! 🗽
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FirstMark CEO Summit today feat the iconic @harleyf of @Shopify, Mark Ebert of @profound, Alex Buder Shapiro of @clay, and @glencoates of OpenAI 🚀 Always an incredible day bringing the FirstMark family together under one roof!
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"Locking yourself into a single model is putting an enormous amount of risk into your business." We were honored to have @EnoReyes, Cofounder of @FactoryAI take the stage at FirstMark Guilds Summit to share his thoughts on agentic software development and how they're helping companies build autonomous software factories.
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"Stop trying to be everything to everyone." "If you pretend to be something you're not, you'll be seen through and no one will believe a word you say." CFOs of Shopify (Jeff Hoffmeister) and Circle (Jeremy Fox-Geen) on going public and what it takes to win in the public markets 🚀 Moderated by @amishjani at the 2026 FirstMark Guilds Summit.
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The rain may have taken the rooftop and the view, but the vibes are better than ever at the annual MAD (Machine Learning, AI, and Data) Summer Party! Huge thank you to our friends at @datadoghq for co-hosting with us this year 💜
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Congratulations to @vendelux on raising a $50M Series B, led by our friends at @tribecavp! We are thrilled to continue our participation after leading the Series A in 2023 🚀 Vendelux helps GTM teams identify the right events, find the right buyers, and turn B2B events into a measurable growth channel. Today, the company tracks 250,000+ global B2B events and supports programs influencing billions of dollars in event spend. Proud to keep backing Alex, Stefan, and the @vendelux team as they build the infrastructure for the next era of B2B events.
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