Marsh McLennan Agency Client Service Specialist, Business Insurance. Our not-so-secret sauce. Award-winning, inclusive, Top Workplace culture doesnt happen overnight. Its a result of hard work by extraordinary people. The industrys brightest talent drive our efforts to deliver purposeful work and meaningful impact every day. Learn more about what makes us different and how you can make your mark as a Client Service Specialist at MMA. Marsh McLennan Agency (MMA) provides business insurance, employee health & benefits, retirement, and private client insurance solutions to organizations and individuals seeking limitless possibilities. With offices across North America, we combine the personalized service model of a local consultant with the global resources of the worlds leading professional services firm, Marsh (NYSE: MRSH). A day in the life. As our Client Service Specialist on the Business Insurance team, you will be committed to prompt, courteous, knowledgeable service to clie...Client Service, Insurance, Business, Specialist, Service, Retail, Client