Ancient Order of Hibernians in America

Ancient Order of Hibernians, Ohio State Board

Association of Genealogists and Record Agents

Professional researchers available in the United Kingdom. Membership of AGRA is limited to those who have demonstrated a high level of competence and expertise. A Code of Practice and a Complaints Procedure are in place.

Association of Professional Genealogists in Ireland (APGI)

BIGWILL - British Interest Group of Wisconsin and Illinois

An organization of individuals (mostly from Wisconsin and Illinois) who are interested in British Isles ancestry and genealogical research in the British Isles.

British Agricultural History Society

British Association for Local History

British Isles Family History Society - U.S.A.

Promotes an interest in family history particularly relating to British Isles ancestry including those from England, Ireland, Scotland, Wales, the Channel Islands, & the Isle of Man.

Buffalo Irish Genealogical Society

Buffalo, New York.
[The original link is broken. This link points to an archived copy on the Wayback Machine]

Catholic Archives Society

United Kingdom & Ireland.

Catholic Family History Society

Catholic Record Society

United Kingdom & Ireland.

Federation for Ulster Local Studies Limited

Federation of Local History Societies / Conascadh na gCumann Staire Aitiula

Genealogical Society of Ireland

Dun Laoghaire, Co. Dublin.

Guild of One-Name Studies

Located in London, England, U.K. The world's leading organisation for one-name studies. A one-name study is a project researching facts about a surname and all the people who have held it, as opposed to a particular pedigree (the ancestors of one person) or descendancy (the descendants of one person or couple).

Irish American Archives Society

Cleveland, Ohio.

Irish Ancestors - Societies

Irish Family History Forum

Plainview, New York.

Irish Family History Foundation

The Irish Family History Foundation has been the coordinating body for a network of county genealogy centres on the island of Ireland for over twenty five years. The genealogy centres’ databases include parish church records of baptisms, marriages and deaths, census returns and gravestone inscriptions. Millions of these records are searchable online, providing a unique resource for family historians not available on any other website. New records will be added as the computerization of sources continues in the local genealogy centres.