Tech Matters is a nonprofit leader in the tech for good space, dedicated to creating technology solutions that benefit all of humanity, particularly focusing on the underserved 90%. They work in collaboration with nonprofit leaders to address social issues, providing affordable, open source software. Their initiatives include Aselo, an open source platform for crisis response helplines, and Terraso, software for addressing climate change challenges faced by local leaders. Moreover, they promote ethical data use through the 'Better Deal for Data' movement. Tech Matters exemplifies how technology can amplify social impact efficiently and increase human productivity across various pressing global challenges.