Loren Greiff

© 2023 Fast Company Executive Board, LLC. All rights reserved. | Terms and Conditions and Privacy Policy | Fast Company® and the other denoted terms and the related trade dress are a non-exclusive list of the trademarks of Mansueto Ventures, LLC. in the U.S. and/or other countries. Mansueto Ventures, LLC trademarks and trade dress may not be used in connection with any product or service that is not Mansueto Ventures, LLC, in any manner that is likely to cause confusion among customers, or any manner that disparages Mansueto Ventures, LLC. This site contains the trademarks, service marks, and logos of third parties and such trademarks and service marks are the property of their respective owners and not owned by Mansueto Ventures, LLC. Such third party trademark owners may or may not be affiliated with, connected to, or sponsored by Mansueto Ventures, LLC. These third party marks include but are not limited to Fast Company®, which is a registered trademark of and the property of Mansueto Ventures, LLC.