🏢 Corporate Challenges Open to Anyone (National & Online)

Backed by Google and announced at Google I/O in May 2026, the Build with Gemini XPRIZE is a $2 million global hackathon challenging developers to use AI to buil…

Startup World Cup runs regional startup pitch competitions worldwide that feed into a global grand finale awarding a $1 million investment prize.

D-Prize awards launch grants (typically up to $20,000) to entrepreneurs who can distribute proven poverty-reducing interventions in developing countries.

FIRST Robotics Competition is a global STEM program where high school students build and compete with industrial robots. Participants can earn $80M+ in college

ChallengeRocket hosts public tech challenges, hackathons, and recruiting competitions aimed at connecting employers with tech talent through prize-based contest…

ML Contests is a discovery layer aggregating machine learning, data science, and robotics competitions across platforms, useful for finding prize-bearing contes…

MassChallenge runs startup accelerator and challenge programs offering equity-free cash awards and sector-specific challenge tracks.

InnoCentive (now part of Wazoku) is an open innovation marketplace where organizations post problems and solvers compete for cash awards.

XPRIZE designs and runs large-scale incentive prize competitions tackling scientific and social-impact grand challenges, with prize purses often in the millions…

MIT Solve runs open social-impact innovation challenges, connecting solvers with partner prizes and funding across global development themes.

F6S is a startup ecosystem platform with a searchable directory of startup competitions, pitch contests, accelerators, and funding programs by geography and sec…

lablab.ai hosts rapid AI hackathons featuring cash prizes, cloud and API credits, and sponsor tracks, filterable by technology and sponsor.

DoraHacks is a global hackathon and bounty platform for frontier-tech and web3 builders, listing hackathons with prize pools and bounty-linked builds.

Major League Hacking (MLH) publishes the official season schedule of student hackathons worldwide, a high-volume source of student-focused competitions and priz…

Devpost is a leading hackathon discovery platform listing public hackathons, app contests, and submission calls — online and in-person — with cash and prize poo…

Topcoder runs technical competitions in coding, design, data science, and AI, with ranked prizes and structured challenge pages browsable by type.

CodaLab and Codabench are open platforms for hosting and participating in scientific competitions and benchmark tasks across research domains.

Zindi is a data science competition platform with an Africa-centered community, hosting ML and data challenges, many offering prize money.

AIcrowd hosts AI research challenges and benchmark competitions with multi-phase timelines, often carrying cash prizes and sponsored tracks.

DrivenData hosts machine learning and data science competitions focused on social impact and public-interest problems, with cash prizes and a strong archive of

HeroX is a crowdsourcing platform hosting open innovation challenges, agency competitions, and corporate prizes across many themes. Many DOE and government priz…

Kaggle is the world's largest data science and machine learning competition platform, hosting ML competitions, benchmarks, hackathons, and sponsor challenges —