MassChallenge Startups Create Impact


Startups Accelerated


Funding Raised


Revenue Generated


Jobs Created

Our startups

Be inspired. Search our startups.

Stemloop, Inc.
Stemloop, Inc.

Lab testing doesn't scale – it's too costly, complicated and slow. This prevents us from solving grand challenges, like ensuring safe drinking water for all (UN SDG 6.1), and necessitates transformative technologies that scale.

Stemloop addresses this need by repurposing biological sensors on our cell-free platform into inexpensive tests that are easy-to-use and provide rapid on-site results. Our first product enables widespread testing of lead in drinking water.
Stemloop is developing biologically-enabled sensors for 21st century data collection needs using cell-free synthetic biology.

Connect with Stemloop, Inc.


2021 Silver BOS-96

Sub industry

Health and Wellness

Additional Industries
Energy / Clean Tech
Water Treatment & Technology
Public Health


Our mission is to equip bold entrepreneurs to disrupt the status quo and to create meaningful change.