Stephen Apking has been pivotal in broadening SOM’s multidisciplinary design practice with an emphasis in defining SOM Interiors as a practice focused on the future, continually emphasizing the importance of performative environments. Apking leads a creative studio that addresses clients’ needs holistically by designing the total experience. This is characterized by a commitment to the integration of systems in order to optimize performance.

Collaboration with artists and manufacturers is another cornerstone of the studio, allowing for the creation of unique installations and innovative products. Apking's global project portfolio includes corporate and creative workplaces, financial offices, hotels, retail spaces, healthcare facilities, performing arts facilities, historic renovations, and residences.

Projects by Apking have been featured in such publications as BusinessWeek, Architectural Record, Interior Design Magazine, Interiors, Contract Magazine, Metropolis Magazine, and numerous others.