challenges
For Business
For Startups
Who We Are
Results
search
Get Started
I want to launch a challenge
Connect to talented problem solvers
I want to solve a challenge
Join our community to win prizes
log in
menu
log in
challenges
For Business
For Startups
Who We Are
Results
World Vision
15,373
share
follow
(35)
following
unfollow
(35)
Low-Cost Chlorine Monitoring for Rural Piped Water Systems
Want to use your technical skills to impact millions? Design a much cheaper method to monitor the concentration of free residual chlorine.
Learn More
Engineering
Non-Profit & Social Impact
Technology
stage:
Submission Deadline
prize:
$20,000
Learn More
Engineering
Non-Profit & Social Impact
Technology
Project Advisor
more
Summary
Timeline
Forum
2
Teams
35
Summary
Overview
Learn More
Timeline
Forum
2
Teams
35
Other Challenges You May Be Interested In
by Chrysalix Venture Capital
88
Novel Sawmill Solutions: Improved Log Processing Challenge
Innovative and sustainable methods for enhancing the cutting efficiency and reducing the processing costs of dimensional lumber production.
by NREL Prize Administrator
3.1K
Solar District Cup
Class of 2025-2026: Challenging multidisciplinary student teams to design and model solar-plus-storage systems for a campus or district.
by GoAERO Prize
1.6K
GoAERO Prize
Design and build a safe, portable, robust, autonomy-enabled Emergency Response Flyer.
