GenealogyRO Group
- Probate investigations mainly in the Banat region of Romania but also featuring other areas of Transylvania such as Siebenburgen, Erdely, Ardeal and Terra Ultrasilvana.
- http://www.genealogy.ro/

Csaladfa Kft (Family Tree Ltd)
- Heir search and probate documentation services in Central and Eastern Europe, based in Budapest. Languages include English, Spanish, German, French, Hungarian, Romanian, Slovak, Russian, Croatian and Polish.
- http://www.familytree.hu/

Smith, Frederick E
- US based, full family history and legal investigations; documentation and tracing of family lines; location of missing heirs to estates; and due diligence searches. Areas covered include the NY, NJ and CT.
- http://www.newyorkheritage.com/

Macbeth Genealogical Services Pty Ltd
- Locating missing heirs, beneficiaries and witnesses world-wide for lawyers, trust companies, executors and administrators.
- http://www.macbeth.com.au/

Worthington Clark
- Private firm specialising in tracing beneficiaries, missing persons, family pedigrees, writing family histories, adoption research; and the reunification of families. Covers Australia, New Zealand and the United Kingdom.
- http://www.worthingtonclark.com/

American Genealogical Research
- AGR Boston locates missing heirs, beneficiaries, legatees, property owners, and stockholders exclusively for attorneys, lawyers, and bank trust officers. Resources include property ownership, BDM indexes, voting records and telephone directories.
- http://www.agrboston.com/