Data integrity is an integral component of all successful fundraising programs.

This page contains some resources you can use to find addresses and phone numbers to help improve your data integrity. The Prospect Research & Management page on this site also has a number of links to sites with similar information.

A number of the sites can be used to help with prospect qualification and similar activities.

American Medical Association. Find physicians.

Ancestry.Com. Family history records.

Data Cleansing, Address, Phone and Email Updates, Employment Match:

Experian. Frank’s Compulsive Guide to Postal AddressesHEPData. International Address FormatsMelissaData. ZipInfo.

Credit Reports: EquifaxExperian. TransUnion.

Lawyers: Martindale-Hubbell. Profiles for over one million lawyers and firms in the United States, Canada and 160 other countries, serving as a fundamental legal resource and marketing tool. Check out Canadian Law List for Canada.

Salutations: Military Salutations.

Various Lookup and Miscellaneous Sites with Resources:

Addresses.Com. AnyWho. 411COM. Australia Canada Post. Embassy WorldwideInfobel. Numberway – Look up phone numbers by country. Switchboard. United Kingdom PostUnited States Postal Service. Universal Postal UnionWhitepages.

NANPA. This site provides information about the North American Numbering Plan (NANP) and its administration. The NANP is the numbering plan for the Public Switched Telephone Network for Canada, the US and its territories, and some Caribbean countries.

Anything you'd like us to add?