Contract manufacturers specialize in large batches or multiple runs of the same part. Their business is in CNC Machining parts, so they have the technology and know-how to produce even the most complex parts consistently.

Service bureaus use a wide array of technologies to service their customers. A service bureau can move quickly, and they can make just about anything you want thanks to their full suite of services. They also usually provide automated online quoting for a quick and easy quoting process. However, these companies have large minimum orders you must place because they have many clients they must keep happy.

You can have your products made quickly with very good quality. Service bureaus can usually offer fair pricing since they deal in high-volumes.