C & F Market Research, 24301 Telegraph Rd, Southfield, MI 48033, US

Established in 1976, Opinion Search is a marketing and opinion research firm. It offers a variety of services, such as auditing, product placement and price monitoring for a range of products, including detergents, baby foods, toiletries and frozen foods. It also offers screener and questionnaire development, moderating, coding, tabbing and comprehensive reporting. It employs several methods, such as in-store distribution checks, executive and telephonic interviewing and product purchases. The company conducts intercept interviewing in locations, such as airports, malls, restaurants, automobile dealerships, shopping districts and bus systems. It is a member of American Marketing Association, Michigan Chamber of Commerce and Better Business Bureau. The company is located in Southfield, Mich., and the facility offers focus group suites, which have observation rooms, kitchen and client lounge.