Investigation companies are the common names used by today’s society and the public for institutions that provide civil and commercial investigation services. Survey firms can broadly refer to all different forms of organizations within the survey industry. The organizational form of the investigation company is not necessarily a limited company, it can also be a sole proprietorship or individual industrial and commercial household registration form.
What we usually see most are the names of investigation agencies registered with the industrial and commercial departments with names such as service, service, consulting, service, and firm.