Use advanced search to select the types of companies you want to meet with - "included company types" is a great place to start, and "Primary/secondary therapeutic areas" allow you to get more specific. Make sure to sort by "modification date" to see companies that have most recently updated their profiles - those companies likely have delegates logging in regularly and checking meeting requests. Hint: Looking for cancer-related therapeutic area? Start with "neoplasm". 

From the search page, if you select "Advanced Search" and "Companies" there's an option to filter for "Previously met companies" - this will include any company you or your colleagues have met with at any past BIO Event. 

New companies are registering delegates every day. Make sure to save your search criteria, and use the "Company registration date" to see new companies within your saved criteria that have registered since you last logged in.

Don't keep your best marketing materials to yourself - share them in your message! You'll need to update the "Assets, Services and Market Products" section of your profile to link any of those as resources, and you'll want to upload any other attachments, like Powerpoint decks, to the "Content" section of your profile.