TBD Design Studio was founded by Josh Weiselberg and Selin Semaan in 2006. TBD Design Studio focuses on rigorous research and development and leads projects, of all scales and styles, from conceptualization through cost analysis and construction.

Selin Erturk Semaan was born in Summit, New Jersey (1978). Raised in Ankara, Turkey, she returned to the United States in 1997 to attend The Rhode Island School of Design. She graduated from the Rhode Island School of Design with an Architecture Degree in 2002. 

Joshua Weiselberg was born in New York City (1979). He graduated from the Rhode Island School of Design with an Architecture Degree in 2002.