They were chosen by this year's master juries, which met in London in September. They made their selections based on business success, client satisfaction, positive impact, and strong vision and achievement.
Vietnamese studio Vo Trong Nghia was named architect of the year by the architecture master jury, which consisted of Sou Fujimoto, Lyndon Neri, Kunlé Adeyemi, Sonali Rastogi and Jing Liu.
"The studio has an acute awareness of the context that it is working in," the jury said. "Vietnam's past is very much present in the work but it also recognises the modernity of the country."
"Vo Trong Nghia's projects signify a transition from old to new," added the judges. "The studio has developed its own school of thought and its own techniques."
London-based studio SevilPeach was selected as interior designer of the year. The jury championed interior design studio SevilPeach's work for being "intelligent and skilfully put together".
"SevilPeach designs peaceful, calming spaces that appear effortless," explained the judges. "Its animated interiors play with light, acoustics and moments of colour."
The interiors master jury, which consisted of Eva Jiricna, Eero Koivisto, Matali Crasset, Ab Rogers and Yoko Choy, also highly commended Dutch studio Inside Outside/Petra Blaisse for its "transformative interventions".
"Inside Outside/Petra Blaisse has an extraordinary knowledge of the interior and understanding of light," the judges explained. "Its innovative work has a meaningful tactile nature."