- John Eric Byers
- John Grade Studio
- John Guest
- John Lum Architecture
- John McAslan + Partners
- John Pawson Studio
- John Robert Nilsson Arkitektkontor
- John Ronan Architects
- John Strand MK Ltd
- johnny
- Johnson Chou Inc.
- JOHNSON CONTROLS
- JOHNSON CONTROLS GMBH
- Johnson Controls Hitachi Air Conditioning Europe
- JOHNSON FITNESS
- Johnston Marklee & Associates
- johnzumwalt.co
- JOHO Architecture
- Johs. von Ehren Garten GmbH & Co KG