| A Closer Look, Inc. | | Online mystery shopping services with resource links for shopper applicants. Online application. |
| A Customer's Point of View, Inc. | | Mystery shopping services for retail, restaurants, transit providers, housing, living and care facilities, entertainment facilities and health care providers. Online application. |
| ACRA, Inc. | | Retail, restaurant, service, sales and entertainment complex mystery shopping. Online application. |
| Advanced Phone Ups | | Telephone training and mystery shopping of all types of vehicle dealerships. |
| Anonymous Insights, Inc. | | Marketing research firm that specializes in customer satisfaction programs. Online application. |
| Ardent Services, Inc. | | Mystery shopper services catering to retail, restaurant, hotel, airline and car rental industries. Online application. |
| Ascent Research Associates, LLC | | Offers mystery shopping and consulting services for restaurant, property management, retail and a variety of other industries in the United States and Canada. Web-based reporting. Online application. |
| At Random Communications | | Telephone based shopper evaluations of service quality and efficiency. Customer follow-up and competitive analysis services also available. |
| Ath Power | | Mystery shopper services catering to retail and financial services. Sales staff and management training and market research. Online application. |
| Bare Associates International | | Mystery guest retail, hotel and restaurant reports since 1987. Video training and guest intercept programs also available. Online application. |
| Barry Leeds and Associates | | Offers a range of mystery shopping services with a core focus on the financial services industry and service-oriented retail companies. Core competence is helping companies prevent discriminatory and unfair sales practices. |
| Berring HIne Consulting | | Telephone-based mystery shopper programmes as part of a wider evaluation of public sector services. |
| C-Chex | | Partners with retailers to ensure cashiers comply with age-restricted sales policies while providing an objective view of operations. |
| Certified Reports, Inc. | | Mystery shopping and market research surveys for financial, restaurant, retail and service industries. Also offer proof-of-performance theatre audits. Online application. |
| Check Mark, Inc. | | Mystery shopper services to banking, restaurant, retail and entertainment sectors. Online application. |
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