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Founders building on Arbitrum, this is your moment.
Arbitrum is bringing early-stage teams together and backing them with partners like Robinhood Chain, LayerZero, OpenZeppelin, Alchemy, GMX, Fhenix, and Dune through Arbitrum Open House 2026.
They’re kicking things off with NYC Founder House: a curated, application only experience for teams exploring Arbitrum and looking for deeper ecosystem alignment.
Part of a global series across New York, Dubai, London, and Singapore, the full Open House offers $1.8M in prizes and grants.
For NYC Founder House, selected teams receive:
→ $340k in prizes and grants
→ Direct access to Arbitrum ecosystem leaders
→ Dual-track mentorship (technical + GTM)
If you’re building seriously on Arbitrum, this is a strong opportunity to accelerate with real ecosystem support behind you.
🔗 Apply → https://nsb.dev/arbitrum-openhouse-nyc