The Editorial Freelancers Association maintains a directory of professional researchers, editors, and fact-checkers available for hire by authors and publishers. Members include specialists in archival research, medical and scientific fact-checking, and general book research. The EFA is one of the oldest and most respected professional organizations for freelance editorial workers in the United States.
Reach out directly. Verify rates, availability, and fit before hiring.
Profiles are sourced from public directories and community submissions. Always verify credentials and rates directly with each professional before hiring.