Here is a smart Google ranking tip for you guys and something you really should check out on your websites especially if you had a 3rd party do it for you as it could be harming your own search engine rankings
Look on your footer for links pointing back to their website especially if they have text like Site Designed by “Web Design Experts” or “Web Designers Your Town”.
Now I have seen this being done by companies especially in the personal training and fitness industry. No if you do this and you are reading y post I'm not going to call you out becasue that wouldn't be very nice but equally I think its a pretty sneaky tactic and is a disservice to your clients for your own gain, even if it is a bit stupid on your part..
If you do have these on your site I would always recommend that you ask them to be removed or at the very least make sure they are “no follow links”.
Sneaky web guys can use their knowledge (and your lack of knowledge) of the search engine ranking scoring to get a link from someone who trusts them (ie clients);
If you knew all the facts and consequences then i'm not so sure you would not allow the link on your site
They are exposing their own websites to an inbound link that violates Google’s written webmaster guidelines but more importantly they are exposing your website to a potential Google violation.
Essentially they are taking Your Page Rank without your permission and passing it on to themselves.
If you are using free themes on your site you should also check for this as well.
(they are free for a reason)