MIKE MASIELLO
Founder & CEO
EXECUTIVE TEAM
Mike Masiello is the Founder and CEO of Top Stack, a relationship-driven human capital firm specializing in Accounting & Finance, Information Technology, and Marketing talent solutions. With more than two decades of experience in the staffing industry, Mike has built a reputation as a strategic partner to his clients, helping organizations scale high-performing teams through a consultative and service-oriented approach.
Mike began his career with one of the largest international staffing firms in the Boston market, where he quickly distinguished himself as a top performer. Early in his career, he took on leadership responsibilities, mentoring peers and building successful teams. Over the past 20 years, his strategic vision and consistent leadership have contributed to the growth of nationally recognized organizations, all grounded in a core principle: lasting relationships are built through transparency, accountability, and a genuine commitment to service.
Driven by a passion for helping others achieve their goals, Mike founded Top Stack with a clear mission—to create an organization centered on integrity, high standards, and meaningful partnerships. Under his leadership, Top Stack has become known for its high-touch service model, deep industry expertise, and ability to deliver exceptional talent in competitive markets. The firm’s continued growth is rooted in its commitment to improving outcomes for clients, consultants, and internal team members alike.
Mike holds a Bachelor of Science in Finance and resides in the Greater Philadelphia area with his wife and two children. Outside of work, he enjoys running, golf, spending time with his family in Ocean City, New Jersey.

