For nonprofits and other social purpose organizations, the work of developing, testing, and launching new programs and services for beneficiaries can be cumbersome and expensive. What if you could increase the speed and lower the cost of that process? What if you could make the work of innovation lean? In the business sector, many companies have embraced lean experimentation—a practice that reduces waste and enables rapid implementation of promising ideas. Today, an increasing number of social sector organizations are successfully using the lean method as well. Peter Murray and Steve Ma from Accelerate Change will provide a step-by-step overview of the lean experimentation process and explain how it applies to the social sector. In addition, two guest presenters will provide specific examples of using lean strategies within their organizations. Palak Shah, director of social innovations for the National Domestic Workers Alliance, will discuss lean experiments that her organization has conducted to develop mission-aligned business ventures and private-sector partnerships. Justin Ruben, cofounder of ParentsTogether and former executive director of MoveOn.org, will describe the use of lean experimentation both in a start-up environment (ParentsTogether) and in an established advocacy organization (MoveOn.org). This webinar will be of interest to leaders at social purpose organizations who are eager to improve the processes that they use to create new programs and services. Grantmakers who seek to help grantees improve the efficiency and the quality of their work will also benefit from this webinar.