Employees at TransferWise rank Kristo Kaarmann in the Bottom 15% of similar sized companies. Similarly, employees at Western Union rank Devin McGranahan in the Bottom 30% of similar sized companies. Employees rate their CEO differently based on the frequency of interaction, ability to affect company culture, and drive measurable results.

Kristo Kaarmann

CEO of TransferWise

BIO: Kristo lived and breathed the world of finance from the inside. At PwC and Deloitte, he helped banks and insurers bring their processes and systems into the 21st century. But stunned by the inefficiency of financial institutions, he wanted to do more. At TransferWise, he is in charge of all operations activities, technology, development, compliance and regulatory issues.

Devin McGranahan

CEO of Western Union

BIO: Devin McGranahan is President, Chief Executive Officer, and Director of The Western Union Company, a global leader in cross-border, cross-currency money movement. After more than 25 years of business and leadership experience, McGranahan joined Western Union as its CEO in late 2021. Previously, he was Senior Group President, Global Business Solutions at Fiserv, Inc. In that role, McGranahan oversaw the company’s global merchant acquiring and processing businesses. During his tenure he was responsible for the launch of the Carat enterprise merchant omni-commerce platform, the development and launch of the Clover Connect integrated software vendor (ISV) platform, and the launch and acceleration of Clover Business Solutions, Fiserv’s digital-direct merchant platform. These capabilities propelled Clover to become the largest cloud-based SMB merchant platform in the market and grew the omni-channel business to over $1 billion in revenue. McGranahan previously spent 20+ years at McKinsey & Co., where he served as a Senior Partner, engaging with leading financial services companies on a broad range of strategy, payments, and business-building opportunities. McGranahan also held a variety of other senior management roles at the firm, including co-leading the North America Financial Services Practice and being a co-chair of the senior partner selection committee. McGranahan holds a Master of Business Administration from Harvard Business School, a Bachelor of Science in Mechanical Engineering from the University of Pennsylvania, and a Bachelor of Science in Economics from the Wharton School at the University of Pennsylvania.