- David Krantz
- David Krauser
- David Kreisler
- David Kreppel
- David Krock
- David Krofta
- David Kroin
- David Kruse
- David Kuhl
- David Kunzmann
- David Kuo
- David Kurtz
- David Kurzweil
- David Kurzweil
- David Kushner
- David Kushner
- David Kutcher
- David Kutner
- David Kwan
- David L. Mammina Architect P.C. Acquired By H2M Architects + Engineers
- David La Cour Kjærum
- David LaBonte
- David Lack
- David Lacki
- David Lagasse
- David Lai
- David Lakhdhir
- David Lallouz
- David Lalo
- David Lam
- David Lam
- David LaMacchia
- David Lampron
- David Landau
- David Landau
- David Landis
- David Lang
- David Lang
- David Lange
- David Langham
