✅ Firm

A firm is a business organization engaged in commercial, industrial, or professional activities. It operates primarily for profit and may take various legal forms such as corporations, partnerships, or sole proprietorships. A firm can consist of multiple organizations, departments, and teams.

✅ Organisation

An organisation is a structured system of people, roles, and processes working together to achieve defined objectives. It exists within a firm and includes various functions such as marketing, finance, operations, and HR. Not all organisations are firms—some may be non-profits, governments, or NGOs.

✅ Group

A group is a collection of individuals who may interact and share information but do not necessarily share a common goal or hold each other mutually accountable. Groups can exist for communication, social interaction, or loose coordination.

✅ Team

A team is a small number of people with complementary skills, committed to a common purpose, shared performance goals, and mutual accountability. Teams collaborate closely and rely on each other to achieve collective results.