Mathesia is the first crowdsourcing platform dedicated to applied mathematics, where companies and organizations find highly qualified talents who help them develop new ideas and solve business challenges by means of applied mathematics. Performance enhancement, process optimization, quality improvement, modeling and forecast, product design, cost reduction and more: Pitchers can post on Mathesia any kind of challenges or innovation ideas. Challenges and ideas become Projects to which Brainies apply their skills and submit their proposals to provide the Pitcher with concrete solutions. Mathesia facilitates the matching between Pitcher’s demand and Brainies’ offer by letting Pitchers post their projects through a user-friendly wizard, setting the reward in money, and Brainies work on the Pitchers’ projects, providing several solutions among which the Pitchers will choose the one they judge to be the best, who will earn the reward. One of Mathesia’s key advantages for Pitchers is variety: through Mathesia a Pitcher can reach a wide community of math scientists from all over the world. Mathesia gives Brainies opportunities to apply their know-how in math sciences to make the world a better place. In Mathesia all Brainies equal opportunities of taking part in projects posted by Pitchers and winning if selected.