One of the best enterprise customer relationship management software companies is Merkle. Merkle has been in business for over 25 years and has a wealth of expertise in consulting, technology, data, and analytics. Consulting services include marketing optimization, customer relationship management technology, segmentation optimization, portfolio optimization, multi-channel engagement, customer relationship management blueprint, process improvement, data asset analysts, insight generation, incremental measurement, media mix optimization, media vehicle optimization, marketing process efficiency, enterprise customer relationship management transformation, marketing optimization, and customer strategy. Merle has an impressive list of clients, including Travelers, Geico, The Hartford, AARP, AAA, MetLife, American National, Select Quote, National General Insurance, Assurant, Key Bank, Can Capital, Canadian Tire Financial Services, Fifth Third Bank, Citibank, PayPal Credit, Social Finance, Office Depot, GAP, Angie's List, TIME, Microsoft, Google, The Salvation Army, Dell, AT&T, Xerox, Tektronix, Schneider Electric, Medical Mutual, and Humana.