Who funds them, what they fund and how to apply.
Arbitrum Open House London combined a three-week online Buildathon with a three-day Founder House, technical workshops, mentorship, product sessions, and live pitches. The combined prize and grant pool was $415,000 across general, Robinhood Chain, agentic AI, and milestone-based grant tracks.
Base announced Base Batches 003 as a funding and mentorship program for onchain builders, with Startup, Student, and Robotics tracks and up to $50,000 in funding per selected participant. The recorded Startup Track application window closed in March 2026; no current general application page has been confirmed.
Four-month accelerator providing $50,000 plus mentorship and technical workshops to early-stage teams building proof-of-concept digital financial services for underserved populations using Open Payments and the Interledger Protocol.
Mantle previously ran Flagship Buildathon programs and a Scouts nomination season. The former grants URLs now serve Mantle's institutional RWA marketing site and no longer describe a public grant or apply path. Scouts Season 2 closed 30 June 2025.
Accelerator for startups building DeFi, payments, and RWA products on Stellar or for EMEA; up to $150,000 in XLM initial development funding from the Stellar Development Foundation, with possible follow-on grants.
Milestone-based accelerator funding up to $200k/team for pre-token Sui projects, co-run by Brinc and CoinList. The first cohort application window closed January 17, 2025. No later cohort has opened.
World Build 3 supported founders building World apps on OP Mainnet with grants of up to $200,000, travel support, and mentorship. Applications for this cohort closed on April 23, 2026.
Status describes whether a program is running. Application methods are recorded separately. Read the funder’s terms before applying.