Martindale.com and Above the Law offer online lists of law firms in Washington, D.C. Chambers & Partners, a service that ranks law firms by quality, also provides an electronic directory, though it is not comprehensive, only displays firms by practice area and focuses on large law firms.
The D.C. Bar, the organization that licenses attorneys to practice in Washington, allows searching for lawyers by name. A user can find contact information and determine whether an attorney is in good standing in Washington. Avvo, another search service, shows attorneys in D.C. by name or practice area. Avvo provides client-sourced ratings for many of the attorneys in its database.