In Rwanda, a community health worker delivers medicine to a patient living with HIV.

Partners In Health was selected as a Devex Top 40 Development Innovator based on a poll of thousands of aid and relief workers from around the world.

Announced on April 18, the top 40 innovators include four types of international development organizations: donor agencies & foundations, development consulting companies, implementing NGOs, and advocacy groups.

The selection is based on a survey Devex emailed to more than 100,000 aid workers and international development professionals.

"Solving the big global challenges we face—from climate change to poverty—will require innovation,” Devex President Raj Kumar said. “We are proud to honor these 40 organizations that are leveraging innovative techniques and approaches to solve complex problems.”

All honorees will be recognized at a reception at the House of Sweden in Washington, DC on April 21 with Chris Thomas, Chief Strategist at Intel and Sonal Shah, White House Director of Social Innovation as featured speakers.

Other top 40 development innovators include Doctors Without Borders (MSF), William J. Clinton Foundation, The Global Fund to Fight AIDS, Tuberculosis, and Malaria, Bill and Melinda Gates Foundation, and Oxfam.

See a complete list of this year’s Devex Innovators.