The document discusses the different entities involved in apprenticeship programs and their roles. The four main entities are businesses, workforce intermediaries, educational institutions, and apprentices. Businesses offer apprenticeship positions and provide on-the-job training and mentors. Educational institutions develop theoretical curriculums. Workforce intermediaries, such as industry associations, support businesses by developing program content, managing administration, creating networks between employers, and facilitating programs for small businesses. They play a key role in enabling apprenticeships. Apprentices participate in on-the-job and classroom learning. Successful programs require collaboration between all entities.