This chapter discusses the role of the choice environment in decisions that are made in the workplace, and particularly how companies can influence these decisions with the help of nudges. Nudges are changes in the way choices are presented to gently steer towards the desirable choice, without impairing autonomous decision-making or changing financial incentives. This chapter provides examples of field studies that demonstrate how nudges can help stimulate employees to make healthier choices (e.g., stand-up working and healthy eating), support companies in reaching sustainability goals (e.g., energy-saving default settings), and uphold existing rules in a company (e.g., related to safety and hygiene). Concrete guidelines are provided to implement and study the effectiveness of nudge interventions. After reading this chapter, researchers and companies will know about both the possibilities and the limitations of implementing nudging (research) in the workplace.