The provided URLs and LinkedIn link do not offer specific information about the company "EIFFEL" at http://www.eiffel.nl. However, based on general knowledge, companies named "Eiffel" often relate to engineering, construction, or technology, inspired by Gustave Eiffel's legacy. Without specific details, it's challenging to define their services or target audience. Typically, such companies might focus on innovative engineering solutions, construction services, or software development. Their unique selling proposition could be a blend of historical legacy and modern technological expertise. For precise details, direct access to the company's website or LinkedIn page is necessary.