Here are some professional associations who's focus is on management:
American Management Association (AMA)
"The American Management Association (AMA) has been at the forefront of redefining how business professionals think and work for more than 100 years, providing unparalleled development solutions that empower professionals to tackle business challenges with confidence and achieve exceptional performance."
Academy of Management
"The Academy of Management is the preeminent professional association for management and organization scholars. Our worldwide members are professors and PhD students in business schools at universities, academics in related social science and other fields, and practitioners who value knowledge creation and application. Founded in 1936, our global community today is nearly 18,000 strong and spans over 120 countries."
Association for Supply Chain Management
"The Association for Supply Chain Management (ASCM) is the global leader in supply chain organizational transformation, innovation and leadership."
Project Management Institute (PMI)
"Project Management Institute (PMI) is the leading authority in project management, dedicated to guiding the way to project success."