The site looks very nice, very professional and also very convenient
I noticed though that searching for your site on google doesn`t show complete results (e.g. searching for text hub loads you as the first hit, but trying sms service, text messaging service, and even text messaging hub won`t load you on the first page..)
I think you should work on your SEO. especially if that is the main or at least one of the ways you acquire clients
There are many ways in which to achieve online visibility, among all, the fastest and easiest way is by creating online personal profiles for you and your staff. You should check out LinkedIn, LookupPage and Naymz. You can also try Twitter.
If you need any further advice feel free to contact me