Smartsheet is a cloud-based platform designed for work management and collaboration. It was created by Brent Frei and Mark Mader in Bellevue, Washington. The platform enables users to plan, capture, manage, automate, and report on work across the business, facilitating more efficient processes and decision-making. Its versatile spreadsheet-like interface supports various use cases, from project management to operational tasks, making it a tool for organizations aiming to streamline workflow and enhance productivity.