From a Harley forum, you might check them out:
I highly recommend International Chromium Plating (ICP) in Providence Rhode Island. Their customer base is from all over the US. It is operated by the Fogarty sisters who took over from their Dad (?) and they are very meticulous.

Their great strength is chroming exhaust parts. Pipe and mufflers are difficult to plate without having the chrome bubble after heated-up during use. ICP bakes their exhaust parts in an autoclave (oven) to avoid these problems. They explained to me once that the issue is gases that cause the bubbling and by baking the parts they purge the compounds that cause the bubbles.

All I know is that I have used them several times for exhaust and other parts and they do a great job. They stand behind their work too and, if there is a problem, they will make it good.

They do a nickle-copper-chrome process typically. This is how show-quality chrome is achieved. The copper coat allows extreme polishing before the chrome final coat is applied and the finish looks like glasss.

I have also visited their plant and it is immaculate. It's also located right in the Italian section of Providence with some awesome restaurants close by.

International Chromium Plating
2 Addison PI.
Providence, RI, 02909-2410

Jean Fogarty

Phone: 401-421-0205
Fax: 401-273-9507