With Microsoft office 365 at a similar cost to subscribing to your Office applications, you can gain access to the whole Office 365 Suit which includes SharePoint Online. SharePoint online has been used by large organisations for years, now Small to medium enterprises can use the document management features in the cloud.
To understand this more review our Enterprise SharePoint service page.
If SharePoint interests you please contact us and we can help you decide if it fits your requirements. You can submit the below form if you wish.