Go to the Sonicbids website (see Resources) and click "Find Gigs."
Select "Record Labels/Distribution" from the "A& R/Publicity/Licensing" subsection of the "Select a category" drop-down menu. Select your musical genre from the "Select a genre" drop-down menu, and click "Go." Sonicbids will return a list of results, called gigs.
Scan through the list of gigs looking for any labeled as "Roster Consideration," "Roster Expansion," or "Music Distribution." Click one and read the details for how to submit your EPK.
Browse to the websites of labels that release music in your genre of choice.
Look for a demo or EPK submission policy. If you find one, read it thoroughly and follow the directions for submitting your EPK. If the label hasn't posted an official policy, move on to Step 3.
Contact the label via their contact form, or the email address or phone number listed on their website. Ask if they accept EPK submissions, and to whom they should be addressed.