| 118 Group: Autonomy infrastructure and portal product consultancy. |
| Aurora Portals: Technology consulting firm with core competencies in the planning and implementation of portal-based information solutions. |
| Billboard.net: Assists with design, development, and mentoring of Portal sites using Oracle Portal technology. |
| Bucchere Development Group: Plumtree portal and application integration consulting. |
| Christopher Cameron: Plumtree portal developer specializing in portal infrastructure and portlet development. |
| DevX: Provides portals to corporate development teams and IT departments. |
| Dynaportal Software Solutions: Providers of corporate solutions using modular based portal software for intranet, extranet or internet. |
| ePages.net: Business solutions company specialising in internet technology. |
| Magico Portals: Customised portal software solutions. Based in Clare, Ireland. |
| Merge: Provides portal software and portal deployment consulting services. |
| Orion Smith: Provides business consulting services and implements corporate enterprise portals. |
| Spheric Technologies: Group of managers, programmers and designers that specialize in Plumtree. |
| Sutro Software: Provides Vignette Portal related software and services. |
| SynEcology: Offers IT infrastructure and SharePoint application consulting. Based in Vermont. |
| WP Experts: European consultancy for WebSphere Portal and IBM Workplace. |
Classical
