Steffian Bradley Architects (SBA) has promoted six senior staff members to new positions within the company.

Nico Flannery-Pitcher, Kathleen Ledoux and Luke Thiboutot have been named senior associates in SBA’s Boston office.

Flannery-Pitcher has more than 10 years of interior design experience and has been with SBA for more than half of her career. She was the lead designer on the Winchester Hospital Center for Cancer Care and is also the lead designer on the 140,000-square-foot Hospital of Central Connecticut Cancer Center & Medical Office Building, now under construction.

Ledoux has 25 years of experience working on complex building projects. She joined SBA in 2012 and has been involved in the management of several projects for Atrius Harvard Vanguard Medical Associates, including their new medical office building in Concord.

Luke Thiboutot has more than 15 years of architectural experience and has been with SBA since 2010. His most recent accomplishment was providing project management for a new construction and renovation project at the University of Connecticut Health Center, which includes a 315,000-square-foot new bed tower and 160,000 square feet of renovations.

Rebeccah Eldridge, Mark Fobert and Karri May have been named associates in SBA’s Enfield, Conn. Office.