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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.

Mobile Standoff Autonomous Indoor Capabilities (MoSAIC) Challenge external challenge site (opens in new window)
Department of Defense - Irregular Warfare Technical Support Directorate (IWTSD)

Mobile Standoff Autonomous Indoor Capabilities (MoSAIC) Challenge

Seeking cutting edge algorithms and robotic platforms for autonomous maneuver in enclosed spaces

Open Until: 09/23/2021 04:59 PM ET

Innovative Community Engagement Strategies to Reduce HIV-related Stigma and Disparities Challenge details
Department of Health & Human Services - Office of Minority Health

Innovative Community Engagement Strategies to Reduce HIV-related Stigma and Disparities Challenge

Engaging Communities to Reduce HIV-Related Stigma and Increase Prevention and Treatment Among Racial and Ethnic Minority People

Open Until: 09/23/2021 11:59 PM ET

Estrategias innovadoras de participación comunitaria para reducir el estigma y las disparidades relacionadas con el VIH external challenge site (opens in new window)
Department of Health & Human Services - Office of Minority Health

Estrategias innovadoras de participación comunitaria para reducir el estigma y las disparidades relacionadas con el VIH

Involucrando a las comunidades para reducir el estigma relacionado con el VIH, y aumentar la prevención y el tratamiento

Open Until: 09/23/2021 11:59 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: 09/24/2021 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

First Responder UAS Triple Challenge 3.1: FastFind - UAS Search Optimized details
National Institute of Standards and Technology (NIST)

First Responder UAS Triple Challenge 3.1: FastFind - UAS Search Optimized

Enhancing first responder search & rescue operations in search of missing persons in a heavily forested area using a UAS...

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

2021 SERDP AFFF Challenge details
Department of Defense - Office of the Secretary of Defense (Acquisition & Sustainment)

2021 SERDP AFFF Challenge

PFAS-free Firefighting Foams

Open Until: 09/30/2021 02:00 PM ET

NHLBI Air You Wear Challenge details
National Institute of Health (NIH) - National Heart, Lung & Blood Institute (NHLBI)

NHLBI Air You Wear Challenge

Help outpatients on supplemental oxygen lead fuller lives and win money to develop your solution to improve their oxygen delivery...

Open Until: 09/30/2021 05:00 PM ET

First Responder UAS Triple Challenge 3.3: Shields Up! Securing UAS Navigation and Control details
National Institute of Standards and Technology (NIST)

First Responder UAS Triple Challenge 3.3: Shields Up! Securing UAS Navigation and Control

Improve security on UAS control channels and navigation functions

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

First Responder UAS Triple Challenge 3.2: Lifelink - UAS Data Relay details
National Institute of Standards & Technology (NIST)

First Responder UAS Triple Challenge 3.2: Lifelink - UAS Data Relay

Enhancing first responder operations by building a UAS to support broadband in a degraded cellular service area

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

xTechHBCU details
Department of Defense - U.S. Army

xTechHBCU

xTechHBCU aims to engage with eligible institutions as defined below, and highlight opportunities to collaborate with the Army to tackle...

Open Until: 10/01/2021 05:00 PM 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

American-Made Solar Prize Round 5 external challenge site (opens in new window)
U.S. Department of Energy

American-Made Solar Prize Round 5

Energize U.S. solar innovation through a series of contests, earning part of $4.6 million in prizes for your novel technology...

Open Until: 10/05/2021 05:00 PM ET

NICHD's Decoding Maternal Morbidity Data Challenge details
National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

NICHD's Decoding Maternal Morbidity Data Challenge

Delivering New Data Solutions to Improve Maternal Health

Open Until: 10/15/2021 05:00 PM ET

Large Scale Metal Additive Manufacturing Challenge external challenge site (opens in new window)
Air Force Research Laboratory

Large Scale Metal Additive Manufacturing Challenge

Develop and mature large-format metal AM technologies for DoD parts and solutions

Open Until: 10/15/2021 11:59 PM ET

Machine Learning Prediction of Internal Building Structures external challenge site (opens in new window)
Air Force Research Laboratory

Machine Learning Prediction of Internal Building Structures

The goal of this challenge is to predict the internal structural configuration of structures using external satellite photographs.

Open Until: 10/15/2021 11:59 PM ET

Data Privacy Certification - UI/UX Design Challenge external challenge site (opens in new window)
International Trade Administration (ITA)

Data Privacy Certification - UI/UX Design Challenge

Employ your UI and UX design skills to help make it easier for organizations around the world to be recognized...

Open Until: 10/15/2021 12:59 PM ET

The Mobile Fingerprinting Innovation Technology (mFIT) Challenge details
National Institute of Standards and Technology (NIST) - Public Safety Communications Research (PSCR) Division

The Mobile Fingerprinting Innovation Technology (mFIT) Challenge

Advancing Mobile Fingerprint Capture Technology for Law Enforcement

Open Until: 10/18/2021 05:00 PM ET

Open Data for Good Grand Challenge details
U.S. Census Bureau

Open Data for Good Grand Challenge

Unleashing the value of open data through digital tools for the public

Open Until: 10/24/2021 11:59 PM ET

Solar Decathlon 2022 Design Challenge details
U.S. Department of Energy

Solar Decathlon 2022 Design Challenge

Are you interested in designing high-performance buildings that tackle climate change and promote environmental justice? Do you love the thrill...

Open Until: 10/26/2021 05:00 PM ET

Solar Decathlon 2023 Build Challenge details
U.S. Department of Energy

Solar Decathlon 2023 Build Challenge

Are you interested in designing and building high-performance homes in your local community that tackle climate change and promote environmental...

Open Until: 10/26/2021 05:00 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

The Artisanal Mining Grand Challenge: The Amazon details
U.S. Agency for International Development

The Artisanal Mining Grand Challenge: The Amazon

Develop and implement solutions that address the environmental and social costs of artisanal and small-scale gold mining (ASGM) in the...

Open Until: 11/10/2021 11:59 PM ET

2021 "$100,000 for Start a SUD Startup" Challenge details
Department of Health and Human Services, National Institutes of Health, National Institute on Drug Abuse

2021 "$100,000 for Start a SUD Startup" Challenge

Testing the premise of research ideas that can be fostered into biotech startups

Open Until: 11/16/2021 11:59 PM ET

Pediatric COVID-19 Data Challenge details
Department of Health and Human Services - Biomedical Advanced Research and Development Authority (BARDA)

Pediatric COVID-19 Data Challenge

Help develop computational models to predict children at risk for severe COVID-19 complications

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

ED.gov National Assessment of Educational Progress (NAEP) Automated Scoring Challenge details
Department of Education, Institute of Education Sciences (IES)

ED.gov National Assessment of Educational Progress (NAEP) Automated Scoring Challenge

Accurately & Transparently Predicting Scores of Test Items

Open Until: 11/28/2021 05:00 PM ET

xView3 external challenge site (opens in new window)
Department of Defense, Defense Innovation Unit

xView3

A competition to detect dark vessels using computer vision and global SAR satellite imagery

Open Until: 11/30/2021 07:59 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

Cooling Solutions Challenge details
Department of Homeland Security (DHS)

Cooling Solutions Challenge

Countering extreme heat with cool technology

Open Until: 12/07/2021 08:00 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: 12/10/2021 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: 12/10/2021 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

LitCoin NLP Challenge external challenge site (opens in new window)
National Institutes of Health (NIH), National Center for Advancing Translational Sciences (NCATS)

LitCoin NLP Challenge

Designing an NLP system to create accessible knowledge from research

Open Until: 01/31/2022 05:00 PM ET

Perovskite Startup Prize details
Department of Energy-National Renewable Energy Laboratory (NREL)

Perovskite Startup Prize

The American-Made Perovskite Startup Prize is designed to accelerate the growth of the domestic perovskite industry.

Open Until: 03/31/2022 05:00 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

Divide and Conquer: Modeling Large-Scale Hydraulics Faster Challenge external challenge site (opens in new window)
Bureau of Reclamation

Divide and Conquer: Modeling Large-Scale Hydraulics Faster Challenge

Improve the modeling of flow hydraulics and sediment transport by creating a fast, stable, parallel linear equation solver for computational...

Open Until: 03/27/2022 11:59 PM ET