Our employees are also used to work with 3rd-parties. If you want your web application implemented in Plone and you do already have a company that will create the layout and interaction we are happy to co-operate with them.
On demand we can provide you with SCRUM Product Owners that can take the lead in the project and will make sure that you get what you really want. Read our article about SCRUM for more information.
If you need just one developer to finish a project that someone else started, we also can help you out. We do these kind of assignments as 'consultancy'. See our consultancy page for more information.