Sundberg Partners (Office for Progressive Architecture), is a Delft based firm of the Swedish architect Peer Sundberg. The firm was founded in 2001 by Peer Sundberg and Ray Kawulske with Johan Matus.

SP employs a large number of senior architects who has extensive experience in the technical development of buildings and who are highly qualified in the managment of complex projects.

Throughout more than 10 years of international project experience, SP has continually expanded its capabilities through prolonged collaboration with an extended network of international consultants, partners, and advisors across the globe.

With already over fifty projects in Europe, North America, and Asia, the Office continues to expand its global presence.