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Challenge.gov
Here, members of the public compete to help the U.S. government solve problems big and small. Browse through challenges and submit your ideas for a chance to win.

Hack-A-Sat 2 external challenge site (opens in new window)
Department of Defense - US Air Force & US Space Force

Hack-A-Sat 2

The Good, The Bad, and the Cyber-Secure

Open Until: 06/27/2021 06:00 PM ET

NIJ's Recidivism Forecasting Challenge external challenge site (opens in new window)
Department of Justice - National Institute of Justice

NIJ's Recidivism Forecasting Challenge

Challenging our nation’s brightest data minds to support successful reentry.

Open Until: 06/30/2021 11:59 PM ET

Improving IT Vendor & Government Communication and Collaboration details
Office of Management and Budget (OMB), Office of Federal Procurement Policy (OFPP)

Improving IT Vendor & Government Communication and Collaboration

Help shape plans that support government-wide acquisition priorities and initiatives

Open Until: 06/30/2021 11:59 PM ET

2021 GAFC and SBIR Catalyst Prize Competition external challenge site (opens in new window)
U.S. Small Business Administration

2021 GAFC and SBIR Catalyst Prize Competition

Supporting Inclusive Innovation Ecosystem Builders

Open Until: 07/02/2021 04:00 PM ET

American-Made Geothermal Lithium Extraction Prize details
U.S. Department of Energy

American-Made Geothermal Lithium Extraction Prize

Seeking solutions that de-risk and increase market viability for direct lithium extraction (DLE) from domestic geothermal brines.

Open Until: 07/02/2021 05:00 PM ET

I Strengthen My Nation: Artistic Expressions of Resilience to Stand Against Substance Misuse external challenge site (opens in new window)
Department of Health and Human Services, National Institutes of Health, National Institute on Drug Abuse

I Strengthen My Nation: Artistic Expressions of Resilience to Stand Against Substance Misuse

NIDA challenges creative youth to make art that inspires others by demonstrating indigenous resilience to substance misuse.

Open Until: 07/07/2021 11:59 PM ET

I Strengthen My Nation: American Indian and Alaska Native Community Projects Created by Youth to Stand Against Substance Misuse external challenge site (opens in new window)
Department of Health and Human Services, National Institutes of Health, National Institute on Drug Abuse

I Strengthen My Nation: American Indian and Alaska Native Community Projects Created by Youth to Stand Against Substance Misuse

NIDA challenges creative youth to develop ideas for community projects that could decrease substance use and promote resilience.

Open Until: 07/07/2021 11:59 PM ET

Synthetic Health Data Challenge details
Department of Health & Human Services - Office of National Coordinator for Health Information Technology

Synthetic Health Data Challenge

Create and test novel solutions to further cultivate Synthea™ capabilities and the synthetic data it generates for healthcare and research...

Open Until: 07/13/2021 05:00 PM ET

US Navy Challenge: Rapid Design Tool for Advanced Manufacturing external challenge site (opens in new window)
Department of Defense, Naval Undersea Warfare Center, Division Newport (NUWCDIVNPT)

US Navy Challenge: Rapid Design Tool for Advanced Manufacturing

This challenge seeks a parametric design tool in the form of an executable file that will automatically generate the necessary...

Open Until: 07/13/2021 11:59 PM ET

Water America's Crops Challenge external challenge site (opens in new window)
Department of the Interior - Bureau of Reclamation

Water America's Crops Challenge

Help us improve the reliability of water delivery for America’s crops by advancing methods to reduce water seepage in canals...

Open Until: 07/15/2021 05:00 PM ET

Polar Vortex external challenge site (opens in new window)
U.S. Department of Defense, National Security Innovation Network

Polar Vortex

Develop solutions to help collect, analyze, process, and visualize geospatial data in the Arctic.

Open Until: 07/19/2021 11:59 PM ET

LymeX Education and Awareness Healthathon details
Department of Health and Human Services (HHS) – Office of the Assistant Secretary for Health (OASH)

LymeX Education and Awareness Healthathon

LymeX: Together, redefining the Lyme disease status quo

Open Until: 07/20/2021 11:59 PM ET

Imperfection Detection: Detect Me If You Can external challenge site (opens in new window)
Department of the Interior - Bureau of Reclamation

Imperfection Detection: Detect Me If You Can

Seeking portable tools to non-destructively evaluate the condition of existing fiber reinforced polymer (FRP) composite structures

Open Until: 07/20/2021 05:00 PM ET

Water Toxicity Sensor Challenge details
Environmental Protection Agency

Water Toxicity Sensor Challenge

Water Quality Monitoring for the 21st Century: A Sensor to Measure Toxicity

Open Until: 07/26/2021 11:59 PM ET

AI and Networks Advanced Naval Technology Exercise (AINet ANTX) - Networks Prize Challenge details
Department of Defense, Department of the Navy, Naval Information Warfare Systems Command (NAVWAR)

AI and Networks Advanced Naval Technology Exercise (AINet ANTX) - Networks Prize Challenge

Project Overmatch is the Department of Navy (DON) priority initiative to modernize Naval warfighting networks.

Open Until: 07/27/2021 03:00 PM ET

AI and Networks Advanced Naval Technology Exercise (AINet ANTX) - Artificial Intelligence Prize Challenge details
Department of Defense, Department of the Navy, Naval Information Warfare Systems Command (NAVWAR)

AI and Networks Advanced Naval Technology Exercise (AINet ANTX) - Artificial Intelligence Prize Challenge

Project Overmatch is the Department of Navy (DON) priority initiative to modernize Naval warfighting networks.

Open Until: 07/27/2021 03:00 PM ET

The FDA New Era of Smarter Food Safety Low- or No-Cost Tech-Enabled Traceability Challenge! external challenge site (opens in new window)
Food and Drug Administration (FDA)

The FDA New Era of Smarter Food Safety Low- or No-Cost Tech-Enabled Traceability Challenge!

Your traceability solution could help bend the curve of foodborne illness.

Open Until: 07/30/2021 05:00 PM ET

Deep Space Food Challenge Phase 1 details
NASA

Deep Space Food Challenge Phase 1

Help Feed the Next Generation of Space Explorers!

Open Until: 07/30/2021 06:00 PM ET

See a Bloom, Give it Room Urban Waters Edition – Harmful Algal Bloom Video Challenge external challenge site (opens in new window)
Environmental Protection Agency – Region 7

See a Bloom, Give it Room Urban Waters Edition – Harmful Algal Bloom Video Challenge

Make a video teaching people 1) how to spot harmful algal blooms and 2) how to be safe around them....

Open Until: 08/01/2021 11:59 PM ET

Cable Conductor Manufacturing Prize details
U.S. Department of Energy

Cable Conductor Manufacturing Prize

Help electrify innovation! The three-stage CABLE Conductor Manufacturing Prize offers up to $4.5-million in cash prizes. Learn more!

Open Until: 08/03/2021 05:00 PM ET

NASA TechLeap Prize: Autonomous Observation Challenge 1 details
NASA

NASA TechLeap Prize: Autonomous Observation Challenge 1

Discover integrated, compact precision pointing systems for autonomously detecting, tracking, and collecting data on transient events.

Open Until: 08/11/2021 08:00 PM ET

Automated Maintenance of Protection Systems Challenge external challenge site (opens in new window)
Department of the Interior - Bureau of Reclamation

Automated Maintenance of Protection Systems Challenge

Make power systems more reliable by automating maintenance testing of protective relays and associated potential and current transformers.

Open Until: 09/03/2021 11:59 PM ET

Mapping Patient Journeys in Drug Addiction Treatment details
Department of Health and Human Services, National Institutes of Health, National Institute on Drug Abuse

Mapping Patient Journeys in Drug Addiction Treatment

Mapping the obstacles patients face in getting treatment for drug addiction

Open Until: 09/22/2021 11:59 PM ET

Streamflow Forecast Rodeo external challenge site (opens in new window)
Department of the Interior - Bureau of Reclamation

Streamflow Forecast Rodeo

Improving short-term streamflow forecast skill.

Open Until: 09/30/2021 09:00 PM ET

DARPA Subterranean (SubT) Challenge external challenge site (opens in new window)
Department of Defense - Defense Advanced Research Projects Agency

DARPA Subterranean (SubT) Challenge

Create breakthrough technologies and capabilities for underground operations.

Open Until: 09/30/2021 12:00 AM ET

Sustainable Communities Web Challenge external challenge site (opens in new window)
Environmental Protection Agency (EPA)

Sustainable Communities Web Challenge

Customize and extend our apps using EPA models with new designs and data to provide sustainability information for communities

Open Until: 10/02/2021 04:00 PM ET

NASA TechRise Student Challenge details
National Aeronautics and Space Administration (NASA)

NASA TechRise Student Challenge

Design an experiment to test on a suborbital rocket or high-altitude balloon.

Open Until: 11/03/2021 05:00 PM ET

EcoTox TARGET Challenge details
Environmental Protection Agency

EcoTox TARGET Challenge

Develop high quality, low-cost tools that assess global gene expression in common aquatic toxicity test organisms

Open Until: 12/03/2021 11:59 PM ET

Engaging Procurement Ideas to Consider (EPIC) Campaign details
Office of Management and Budget (OMB), Office of Federal Procurement Policy (OFPP)

Engaging Procurement Ideas to Consider (EPIC) Campaign

Help shape plans that support the President’s Management Agenda (PMA) and other key government-wide acquisition priorities and initiatives

Open Until: 12/31/2021 11:59 PM ET

NEI 3-D Retina Organoid Challenge (3-D ROC), Phase III details
Department of Health and Human Services - National Institutes of Health

NEI 3-D Retina Organoid Challenge (3-D ROC), Phase III

Build your vision of the future.

Open Until: 06/01/2022 02:00 PM ET