Market research services are provided by several kinds of companies, including advertising agencies, management consultants, and specialized market research organizations. In addition, many large business companies have their own market research department.

Market researchers estimate the demand for new products and services, describe the characteristics of probable customers, and measure potential sales. They determine how prices influence demand, and they test the effectiveness of current and proposed advertising. Market researchers also assess a company's sales personnel and analyse the public "image" of a company and its products.

A market research study begins with a statement of the problem that the client wants to solve. This statement leads to a detailed definition of the information to be gathered. There are two types of market research information, secondary data and primary data.

Secondary data are statistics and other information that are already available from such sources as government agencies and universities. To save time and money, market researchers use secondary sources as much as they can. Primary data are data that must be obtained through research. The chief techniques for gathering such data include mail questionnaires, interviews, retail store shelf audits, use of electronic scanners at retail checkout counters, and direct observation in stores. The researchers design and test research materials, such as questionnaires or guides for interviewers. Finally, they collect the data, analyse the information, and report the results of their study. The computer is an important tool in analysing market research data. Market research can reduce the risk involved in many business decisions, but some risk always remains.