To better understand how companies are finding the unique, hybrid cloud architectures that best meet their needs, we interviewed executives at companies that had reduced or changed their use of managed or cloud IaaS or that chose to avoid the public cloud in the first place. These companies include retail, social media, healthcare, financial services, and public sector companies. Some of these companies were born in the cloud while others transitioned from traditional IT infrastructures. Company sizes ranged from 300 employees to more than 300,000.