Finding marketing information can take a lot of digging. Try the resources listed on this page, but if you get stuck or just need some help, please contact Gwen Gray at firstname.lastname@example.org.
Trade associations can be excellent sources of industry information. They conduct consumer research and surveys of members, track relevant legislation and lobby government, publish trade magazines, etc. Check their website or call and ask what kinds of data are available. Some associations will have limited information available to nonmembers.
To find an association, try using the index to Encyclopedia of Associations, REF HS17 .G3 Ready Reference, (ask at Reference Desk). You can also try doing an internet search using keywords, e.g. medical device association.
When looking at the website, look for sections labeled research, statistics, publications, or information for the media. Be persistent!
Examples of trade associations with information on their website: