Joan Pearce Research Associates is a private research library founded by Joan Pearce that specializes in legal clearances and fact-checking for the entertainment industry. They provide:

• Errors & Omissions Reports for film and television scripts
• Background & Authenticity information
• Production Research
• Translation Services
• Music Clearance
• Interactive Media
• Contacts for Rights & Permissions including: Products, Photos, Film Clips, Celebrities, Intellectual Properties, Literary Quotations

Joan Pearce was used during the production of Star Trek: Deep Space Nine to perform the above for that show's scripts. The company has also worked on films such as In the Mouth of Madness, You Can Count on Me, Sexy Beast, Hedwig and the Angry Inch, Dark Blue, Monster, Hotel Rwanda, Grandma's Boy, Underworld: Evolution, and Crank, generally providing research and script clearances.