Searchengine Optimization focuses on the results of the search engines. Most people (over 90% in Netherlands) search with Google Search®, so ITMATEC aims particulary to them.
ITMATEC can advise you which alterations you should make to your website to be better found. For this it is necessary to contact your website-host and/or webdesigner.Next to this you might care to be found at portals or webguides throught the submission service. Which can also be done by ITMATEC.
You can read some basics and faulty techniques on this site or consult a book about SEO and try to undertake the optimization yourself. Better is to completely outsource it to ITMATEC.
ITMATEC offers you to perform this work with a single-time agreement, so you're not fixed with a subscription.Also consider the other desciplines of searchengine marketing, like searchengine advertising and the references.