The U.S. Department of Labor (DOL) American Apprenticeship Initiative (AAI) funded 46 grantees across the country to expand registered apprenticeship into new sectors, such as healthcare, and to populations historically underrepresented in apprenticeships. DOL commissioned an evaluation of the AAI grants to build evidence about the effectiveness of registered apprenticeship for apprentices and employers. This report presents findings from the demonstration study that examined the impact of employer engagement efforts on employers' take-up of registered apprenticeship. The primary data source is data collected by the two grantees in the demonstration on their efforts to research, contact, and subsequently develop apprenticeship programs with employers. Other data sources include interviews conducted during site visits to and phone calls with the two grantees, and observations of technical assistance provided to grantee staff by a consultant. [This report was produced in partnership with Capital Research Corporation.]