What do you call a person or group that has an interest or concern in a business?

The term that describes a person or group that has an interest or concern in a business is "stakeholder." Stakeholders can include a wide range of individuals or entities, such as employees, customers, investors, suppliers, and even the community at large. They all have a vested interest in the activities, performance, and overall success of the business because they can be affected by its decisions and operations.

Understanding stakeholders is crucial for businesses, as they play a significant role in shaping company policies and strategies. Engaging stakeholders effectively can lead to better decision-making, enhanced reputation, and increased success in achieving business objectives. Thus, recognizing the broader definition of stakeholders helps encompass all parties involved rather than narrowing the focus to just investors, employees, or suppliers.