In "The Forrester Wave™: Global Digital Experience Agencies, Q4 2019," we evaluated 14 agencies, consultancies, and tech service providers and spoke with 48 customer references. Almost one-quarter of those references were transforming their companies from end to end, from experiences through to operations. These experience-led transformations gave them the power and budget to move their enterprises forward — to reinvent themselves to fulfill the promise and opportunity of digital business. Here's what they had to say.