Service Check Customer service audits performed throughout North America. http://www.servicecheck.com/

ICC - Decision Services Mystery shopping and merchandising solutions. Services retail and restaurant industry. Programs customized to meet the objectives and budget of customers. http://www.iccds.com/

Confero, Inc. Nationwide mystery shopping and customer satisfaction measurement services for automotive, banking, restaurant and real estate. Online application. http://www.conferoinc.com/

ServiceTRAC, Inc. National and international mystery shopping and full service market research firm providing market analysis, measurements and solution services. http://www.servicetrac.com/

Shop'n Chek International Mystery shopping and market research services for customer satisfaction measurement. http://www.shopnchek.com/

IntelliShop Wide range of mystery shopping services, on-site, telephone and web-based to the retail industry. Online application. http://www.intelli-shop.com/

Second To None, Inc. Full service mystery shopping solutions. Apply online. http://www.second-to-none.com/

Hindsight Business evaluations by mystery shoppers, customer service information collectors, local and US national. Comparison graphs for managers. http://www.hndsight.com/

Anonymous Insights, Inc. Marketing research firm that specializes in customer satisfaction programs. Online application. http://www.a-insights.com/

Tenox Appraisal Systems Customer satisfaction measurement specialists. http://www.weshop4u.com/

Check Mark, Inc. Mystery shopper services to banking, restaurant, retail and entertainment sectors. Online application. http://www.checkmarkinc.com/

Count On Us Mystery shopper services to restaurants, bars, hotels, banks, retail and service industries. Licensed investigators. Online application. http://www.ucountonus.com/

At Random Communications Telephone based shopper evaluations of service quality and efficiency. Customer follow-up and competitive analysis services also available. http://www.arllc.com/

Shoppers' View Provides mystery shopping on site and by telephone to the retail industry. Online application. http://www.shoppersview.com/

Schryver Enterprises. LLC Develops and customizes training courses in customer satisfaction, and provides mystery shopping services. http://www.schryverenterprises.com/

imyst Mystery shopping, market research, and online surveys. http://www.imyst.com/

Shadow Shopper Video mystery shopping company. Shoppers wear microvideo equipment to record interactions. Services, press releases and news, dealers, and contact information. http://www.theshadowagency.com/

J.M. Ridgeway Co. A market research and mystery shopping company providing national coverage. http://www.jmridgway.com

ITS (Incognito) Offers assessment of customer service, call handling and sales skills through the implementation of mystery customer programs. Specialising in the hospitality industry. http://www.itsincognito.com/

Secret ShopNET Mystery shopping services. Apply online. http://www.secretshopnet.com/