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Archived Challenges

Archived challenges are no longer accepting submissions and are included for historical purposes only. Currently we are displaying recently closed challenges through the beginning of 2019. Additional challenges will be included at a future date.

Army xTechSearch

Department of Defense

Closed On: 01/01/2019 02:59 AM

Sediment Removal Techniques for Reservoir Sustainability - Stage 1

Department of the Interior - Bureau of Reclamation

Closed On: 01/04/2019 11:59 PM

Spacecraft Engagement Simulation Experiment Challenge

Department of Defense - U.S. Air Force

Closed On: 01/05/2019 12:59 AM

2018 "$100,000 for Start a SUD Startup" Challenge

Department of Health and Human Services - National Institutes of Health

Closed On: 01/15/2019 05:00 PM

Recycling in Space Challenge

National Aeronautics and Space Administration

Closed On: 01/16/2019 05:00 PM

Advanced Microelectronics Design & Prototype Challenge

Department of Defense

Closed On: 01/22/2019 11:59 PM

HUD Innovation in Affordable Housing Student Design & Planning Competition 2019

Department of Housing and Urban Development

Closed On: 02/04/2019 12:00 AM

NASA Centennial Challenge CO2 Conversion Challenge phase 1

National Aeronautics and Space Administration

Closed On: 02/07/2019 06:00 PM

KidneyX: Redesign Dialysis Phase 1

Department of Health and Human Services

Closed On: 02/28/2019 05:00 PM

Nutrient Sensor Action Challenge Stage II

Environmental Protection Agency

Closed On: 02/28/2019 11:59 PM

IARPA Activity in Extended Videos Prize Challenge

Office of Director of National Intelligence - Intelligence Advanced Research Project Activity

Closed On: 02/28/2019 11:59 PM

NSF We Are Mathematics Video Competition

National Science Foundation

Closed On: 02/28/2019 11:59 PM

The Mechanical Eye

National Aeronautics and Space Administration

Closed On: 03/31/2019 08:00 PM

2019 Million Hearts® Hypertension Control Challenge

Department of Health and Human Services - Centers for Disease Control and Prevention

Closed On: 04/01/2019 11:59 PM

Shape of Health - An Obesity Prevention Game

Department of Health and Human Services

Closed On: 04/07/2019 11:59 PM

EmPOWER Air Data Challenge

Environmental Protection Agency

Closed On: 04/08/2019 11:59 PM

Lowering the Cost of Continuous Streamflow Monitoring - Stage I

Department of the Interior - Bureau of Reclamation

Closed On: 04/08/2019 11:59 PM

Saving the 'Ōhiʻa

Department of the Interior

Closed On: 04/09/2019 05:59 AM

Escape Respirator Challenge

Department of Homeland Security - Science and Technology

Closed On: 04/11/2019 05:00 PM

CASE Challenge

Office of Director of National Intelligence - Intelligence Advanced Research Project Activity

Closed On: 04/14/2019 11:59 PM

ATLAS - Offshore Wind Challenge

Department of Energy - Energy Programs

Closed On: 04/19/2019 03:05 PM

ATLAS - Onshore Student Competition

Department of Energy - Energy Programs

Closed On: 04/19/2019 03:05 PM

2019 NIST ARIAC Challenge

Department of Commerce - National Institute of Standards and Technology

Closed On: 04/19/2019 05:00 PM

Detecting Radiological Threats in Urban Areas

Department of Energy - National Nuclear Security Administration

Closed On: 04/19/2019 09:00 PM

Haptic Interfaces for Public Safety Challenge

NIST PSCR Group

Closed On: 04/22/2019 12:00 AM

Opioid Detection Challenge

Department of Homeland Security - Science and Technology

Closed On: 04/24/2019 04:59 PM

Electricity Industry Technology and Practices Innovation Challenge

Department of Energy - Energy Programs

Closed On: 04/30/2019 08:00 PM

IARPA's Mercury Challenge

Office of Director of National Intelligence - Intelligence Advanced Research Project Activity

Closed On: 04/30/2019 12:00 AM

Artists Inspire Astronauts

National Aeronautics and Space Administration

Closed On: 04/30/2019 12:00 PM

#SmallBusinessWeek Hackathon 2019

Small Business Administration

Closed On: 05/05/2019 09:45 AM

Improving Fish Exclusion from Water Diversions and Intakes

Department of the Interior - Bureau of Reclamation

Closed On: 05/06/2019 11:59 PM

"$100,000 for Start a SUD Startup 2019" Challenge

Department of Health and Human Services - National Institutes of Health

Closed On: 05/10/2019 06:00 PM

MagQuest

Department of Defense - National Geospatial Intelligence Agency

Closed On: 05/16/2019 04:59 PM

Differential Privacy Synthetic Data Challenge

Department of Commerce - National Institute of Standards and Technology

Closed On: 05/20/2019 12:00 AM

FAST Commissioning for Pumped-Storage Hydropower Prize

Department of Energy - Energy Programs

Closed On: 05/24/2019 05:00 PM

GEAR Center Challenge

General Services Administration

Closed On: 05/24/2019 5:00 PM

USSOCOM HF Geolocation Algorithm Challenge

Department of Defense

Closed On: 05/27/2019 08:59 PM

DEBUT (Design by Biomedical Undergraduate Teams) - 2019

Department of Health and Human Services - National Institutes of Health

Closed On: 05/31/2019 11:59 PM

Speaking Up About Mental Health! This Is My Story

Department of Health and Human Services

Closed On: 05/31/2019 11:59 PM

NCATS ASPIRE Design Challenge 1

Department of Health and Human Services - National Institutes of Health

Closed On: 05/31/2019 12:00 PM

NCATS ASPIRE Design Challenge 2

Department of Health and Human Services - National Institutes of Health

Closed On: 05/31/2019 12:00 PM

NCATS ASPIRE Design Challenge 3

Department of Health and Human Services - National Institutes of Health

Closed On: 05/31/2019 12:00 PM

NCATS ASPIRE Design Challenge 4

Department of Health and Human Services - National Institutes of Health

Closed On: 05/31/2019 12:00 PM

NCATS ASPIRE Design Challenge 5

Department of Health and Human Services - National Institutes of Health

Closed On: 05/31/2019 12:00 PM

Visualization Resources of Community-Level Social Determinants of Health Challenge

Agency for Healthcare Research and Quality

Closed On: 06/07/2019 05:00 PM

Army XTechSearch 3.0

Department of Defense - U.S. Army

Closed On: 06/13/2019 02:59 AM

CMS AI Health Outcomes Challenge

Department of Health and Human Services - Centers for Medicare and Medicaid Services

Closed On: 06/18/2019 05:00 PM

GSA Hackathon 2019

General Services Administration

Closed On: 06/19/2019 05:00 PM

Growth Accelerator Fund Competition

Small Business Administration

Closed On: 06/20/2019 04:59 PM

AHRQ Bringing Predictive Analysis to Healthcare

Department of Health and Human Services - Agency for Healthcare Research and Quality

Closed On: 06/28/2019 05:00 PM

iCARE-AD/ADRD

Department of Health and Human Services - National Institutes of Health

Closed On: 06/30/2019 11:59 PM

MaTCH Pilot Competition

Small Business Administration

Closed On: 07/08/2019 11:59 PM

USMC Knee and Elbow Pad Innovation

Department of Defense - U.S. Marine Corps

Closed On: 07/12/2019 11:59 PM

Cinespace Film Competition

National Aeronautics and Space Administration

Closed On: 07/15/2019 11:59 PM

American-Made Solar Prize Round 2

Department of Energy - Energy Programs

Closed On: 07/16/2019 2:00 PM

NASA Advanced Exploration Systems Modular Power System Graphic Challenge

National Aeronautics and Space Administration

Closed On: 07/22/2019 08:00 PM

Develop a Template & Production Process Instructions for an HTML-Based Newsletter

National Aeronautics and Space Administration

Closed On: 07/26/2019 08:00 PM

Advanced Septic System Nitrogen Sensor Challenge Phase II Prototype Development and Testing

Environmental Protection Agency

Closed On: 07/26/2019 11:59 PM

NSF Career Compass Challenge

National Science Foundation

Closed On: 07/26/2019 11:59 PM

Atmospherics Generator Challenge

Department of Defense - U.S. Air Force

Closed On: 07/31/2019 12:59 AM

Lithium-Ion Battery Recycling Prize

Department of Energy - Energy Programs

Closed On: 08/01/2019 04:00 PM

MGMWERX Library Challenge

Department of Defense - U.S. Air Force

Closed On: 08/05/2019 12:59 AM

Storyboard Animations for NASA Human Research Program

National Aeronautics and Space Administration

Closed On: 08/09/2019 8:00 AM

Design the Navigation Lidar (NDL) Graphic

National Aeronautics and Space Administration

Closed On: 08/16/2019 11:59 PM

The FedRAMP Ideation Challenge

General Services Administration

Closed On: 08/22/2019 05:00 PM

MagQuest Phase 2

Department of Defense - National Geospatial Intelligence Agency

Closed On: 08/28/2019 04:59 PM

PINS Challenge

Office of Director of National Intelligence - Intelligence Advanced Research Project Activity

Closed On: 08/30/2019 11:59 PM

HACKtheMACHINE New York

Department of Defense - Naval Sea Systems Command

Closed On: 09/05/2019 12:00 AM

Design the Human Factors Engineering Lab (HFEL) Graphic

National Aeronautics and Space Administration

Closed On: 09/06/2019 11:59 PM

Waves to Water Prize

Department of Energy - Office of Energy Efficiency & Renewable Energy

Closed On: 09/11/2019 5:00 PM

Full Ocean Depth Challenge

Department of Defense

Closed On: 09/12/2019 2:00 PM

Solar District Cup

Department of Energy

Closed On: 09/12/2019 5:00 PM

MUX Mission System Airborne Early Warning (AEW) Payload Prize Challenge

Department of Defense

Closed On: 09/23/2019 11:59 PM

MUX Mission System Data Relay (DR) Payload Prize Challenge

Department of Defense

Closed On: 09/23/2019 11:59 PM

MUX Electronic Warfare (EW) Payload Prize Challenge

Department of Defense

Closed On: 09/23/2019 11:59 PM

MUX Mission System Intelligence, Surveillance, and Reconnaissance (ISR) Payload Prize Challenge

Department of Defense

Closed On: 09/23/2019 11:59 PM

Artificial Intelligence Applications to Autonomous Cybersecurity (AI ATAC) Challenge

Department of Defense - Naval Information Warfare Systems Command

Closed On: 09/30/2019 05:00 PM

NASA Vascular Tissue Challenge

National Aeronautics and Space Administration

Closed On: 09/30/2019 11:00 PM

2019 Campus RainWorks Challenge

Environmental Protection Agency

Closed On: 09/30/2019 11:59 PM

Find the Killer Frog Fungus

Department of the Interior

Closed On: 10/01/2019 12:00 AM

Resilient, Inclusive, & Sustainable Environments (RISE)

U.S. Agency for International Development

Closed On: 10/08/2019 11:00 AM

PMA-263 Tactical Resupply UAS Challenge

Department of Defense

Closed On: 10/18/2019 11:59 PM

Virtual Reality Air and Space Operations Center (AOC) Design Challenge

Department of Defense - Air Force

Closed On: 10/18/2019 12:59 AM

Expanding the SIM Card Use for Public Safety Challenge

Department of Commerce - National Institute of Standards and Technology

Closed On: 10/19/2019