What term describes any physical office other than a brokerage's main office?

The term that best describes any physical office other than a brokerage's main office is "branch office." A branch office serves as an extension of the main brokerage and operates under its license, allowing real estate agents to conduct business in different locations.

Branch offices enable brokerages to expand their reach and provide local presence in various communities, enhancing client accessibility and generating more business opportunities. These offices are officially recognized and regulated under real estate laws, which require proper licensing and adherence to specific operational guidelines.

In contrast, while "satellite office" and "field office" can refer to secondary locations, they do not carry the same formal recognition in brokerage operations as branch offices do. "Agent office" is not a commonly used term in the industry to describe this type of physical office. Therefore, the correct term that accurately denotes a secondary physical location for a brokerage is branch office.