Michael Harnum has a strong background in executive leadership and sales, with significant experience in the telecommunications industry. Michael is currently the Chief Executive Officer at ESG, where they have successfully expanded the company's value proposition and achieved a 124% increase in profitability. Prior to ESG, Harnum served as the Executive Vice President at ServiceSource, overseeing a 700-employee sales and service center and managing multi-million dollar client engagements. Michael also held various leadership roles at CenturyLink, including Sr. Vice President and General Manager of the Systems Integrator Alliance Program. Harnum began their career at MCI, where they served in roles such as Regional Manager and National Account Manager, consistently driving revenue growth.

From 1984 to 1988, Michael Harnum attended Princeton University, where they obtained a Bachelor of Arts degree. Their field of study was History, and during their time at Princeton, they also participated in varsity basketball for all four years.

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Denver, United States

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ESG (Customer Success as a Service®️)

ESG delivers Customer Success as a Service® (CSaaS), enabling you to build, operationalize, and transform your CS organization. We’re here to help you improve metrics and accomplish your ultimate goal of reduced churn and increased retention. Our services combine consultation, process development, people, and automation to increase the capabilities of your Customer Success organization.