You might try the hits on a Google search for film scanning labs.
http://www.google.com/search?hl=en&q=film+scanning+labs&btnG=Google+Search&aq=f&oq=&aqi=
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CSM1
http://www.carlmcmillan.com
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How good a quality do you need, ie, how will you use the images? At
what final output size?
Good quality 35mm film scanners will probably give you better quality
than mass scanned, reasonably priced bulk scans from a service. But
film scanning is a pretty slow process, and if you have a LOT to scan,
you're liable to quit before you get them all done. I'd suggest you
try one or two of the commercial labs that bulk scan, and see if the
resulting files are "good enough" for whatever your final purpose.
Brad