Description If your company's performance needs improvement, it's best to find the source of the problem. ESource Corp. is a training and development staffing and consulting firm. The company offers services such as needs assessment, curriculum design, performance evaluation, project management, and software implementation. ESource provides services to a wide variety of industries, including financial services, healthcare, government, software development, and telecom. It offers its services via both classroom and online instruction forums. ESource was co-founded in 1994 by CEO Michael Giambra; it operates offices in Georgia, New Jersey, and Washington, DC.