Jake Technologies
- Paul S. Jacobs is a consultant in technologies for exploiting the internet: artificial intelligence, customer relationship management, search engines, and electronic commerce, based in Washington, DC.
- http://www.jaketech.com

JD Warren Associates
- Offers management consulting services with a foucs on business processes and information technology.
- http://www.jdwarrenassociates.com/

Japanese Computer Services
- Services include consultancy, software development, Internet networking and system support.
- http://www.japancs.com/

JB Knowledge
- Provider of IT consulting for small to medium sized businesses.
- http://www.jbknowledge.com/

Jebel Consultant Group
- Information technology management and consultancy services
- http://www.jebel.com.au/

Jaled
- A vendor independent consultancy providing eBusiness and information technology services.
- http://jaled.com