Oxford Consulting Group
- Offers services to support EDI and B2B integration including implementation and training for Gentran, GIS, Inovis/Harbinger, and GXS. Includes client list and newsletter.
- http://www.oxford-consulting.com/

Odyssey Software
- Implementation and support of information management solutions for mid-market organizations.
- http://www.tosg.com/

OAO Technology Solutions
- builds, integrates and supports IT infrastructures.
- http://www.oaot.com

Orion Consulting Ltd
- The independent EDI and EC consultancy in the UK and Europe.
- http://www.orionltd.co.uk

Open Shop Now
- Our end-to-end, powerful E-Commerce solutions include shopping cart and auction functionality in one easy to use package. Offers E-Commerce and custom software solutions for businesses of all sizes.
- http://www.openshopnow.com/