София.

В София има 114 фирми.

Фирма	Работно време
SGI Architects and Masterplanners
Sia Esb Eood
SOVA Architecture and Design
Stacarchitects
STRUKTO
Studio Nedyalkov Architects ltd
United Master Architects
URBANVIVA-architectural studio
Vilmat Holding
Vladimirov/Gyuneliev architects
WE:R Architecture & Design Studio
Deal Engineering
Lusio architects
MMXX architects