I believe this company was posted about last year on another blog, I wanted to post again for some of the new comers to the Revit Family of products.
Broutek Ltd. is a London-based company providing ready-to-use product families for Autodesk's Revit Platform.
You can request content that Broutek will create for your company and Broutek states they can have the content created in less than 48 hours. with no extra charge or obligation to purchase
If you want to buy families already created they have credit packs that you may purchase example would be $300 for 5 families. Currently posted on the web site I counted roughly 780 families available for purchase.
All families are fully parametric, and Broutek has sample families you can download. Here is the web site address Broutek Ltd.
Many companies such as Broutek are providing similar content over the web at a cost. So if your firm is in a bind for a specific family and does not have the staff or someone who knows family creation these companies might be the best alternative.