ARPA-I Ideas and Innovation Challenge
Offers prize-backed innovation challenges in the United States for breakthrough transportation infrastructure ideas.
Two-stage prize competition. Stage 1: 448 submissions, 15 winners received $20K each (Dec 2025). Stage 2: closed cohort — full proposals from 15 Stage 1 winners only; $700K prize pool; submissions closed April 2026.
AIBuilt EnvironmentHardwareRoboticsMobility
Each grant below is a distinct funding opportunity with its own eligibility, scope, and deliverables.