- Internal consultant - someone who operates within an organization but is available to be consulted on areas of specialism by other departments or individuals (acting as clients); or
- External consultant - someone who is employed externally (either by a firm or some other agency) whose expertise is provided on a temporary basis, usually for a fee. As such this type of consultant generally engages with multiple and changing clients.
Ways of work
- Engineering consultants provide engineering-related services such as design, supervision, execution, repair, operation, maintenance, technology, creation of drawings and specifications, and make recommendations to public, companies, firms and industries.
- Strategy consultants (AKA management consultants) working on the development of and improvements to organizational strategy alongside senior management in many industries.
- Human-resources (HR) consultants who provide expertise around employment practice and people management.
- Internet consultants who are specialists in business use of the internet and keep themselves up-to-date with new and changed capabilities offered by the web. Ideally internet consultants also have practical experience and expertise in management skills such as strategic planning, change, projects, processes, training, team-working and customer satisfaction.
- Process consultants who are specialists in the design or improvement of operational processes and can be specific to the industry or sector.
- Public-relations (PR) consultants dealing specifically with public relations matters external to the client organization and often engaged on a semi-permanent basis by larger organizations to provide input and guidance.
- Performance consultants who focus on the execution of an initiative or overall performance of their client.
- Immigration consultant who helps through legal procedure of immigration from one country to other country.
- Information-technology (IT) consultants in many disciplines such as computer hardware, software engineering, ornetworks.
- Marketing consultants who are generally called upon to advise around areas of product development and related marketing matters.
- Interim managers as mentioned above may be independent consultants who act as interim executives with decision-making power under corporate policies or statutes. They may sit on specially constituted boards or committees.