Welcome Nathan Spielberg, CTO & Co-Founder of Tamarin AI and Founder of BUILD617 on this episode of 🔥 The Lantern 🔥
Tamarin is building the future of modern strategic procurement, helping enterprises plan, understand, and optimize their spend in an AI-first way.
And when Nathan isn’t building Tamarin AI he’s building BUILD617, an organization by founders, for founders, committed to growing great companies in Boston over the long term.
🗺️ Where is Tamarin headed in 2026? 🗺️
After hitting its stride in data cleaning, spend classification, and categorization, Tamarin is pushing deeper into the agentic optimization layer, helping procurement teams understand risk exposure and build smarter strategies at scale.
If you’re in enterprise procurement, watch this team!
🏙️ What’s happening at BUILD617? 🏙️
This is BUILD617‘s first year building in public. They’re hosting Founder dinners, ramping up a podcast, and the Boston founder community is showing up in a big way.
There’s a bunch of early stage founders in their group to watch!
Recent pod guests have included David Chang (longtime Boston builder & Founder of Via AI, Inc.), Jason Kelly (Co-Founder of Ginkgo Bioworks, the first biotech YC company), and Eric Paley (founder, seed investor, and now Secretary of Economic Develompent).
That’s a major lineup of Boston startup community pillars. Go check out the podcast!
🤔 What has Nathan learned building companies and community? 🤔
One insight from Eric Paley that Nathan lives by?
The best founders prioritize action over certainty.
In a world where no one (not even the most experienced investors), knows exactly what to do, the founders who win are the ones who move fast, iterate quickly, and trust the cycle even when the path isn’t clear.
That’s the BUILD617 mantra! …and Tamarin’s too.
🤝 How can we help? 🤝
Keep the momentum going!
The Boston ecosystem has incredible energy right now, and organizations like BUILD617, the Massachusetts AI Coalition, and others are all doing their part.
And if you’re building in procurement, connect with the Tamarin team.
Let’s keep building.
The Lantern is brought to you by MGMT Boston & Invest Northern Ireland – Americas this month