Oxygraphics 2007
- Independent publishers of scientific books on CD's, paper and freely accessible PDF files.
- http://www.oxygraphics.co.uk/

The Visiting Fireman
- Annual publication and reference book for fire buffing, and fire service enthusiasts.
- http://www.visitingfireman.com/

Dashofer Holding, Ltd.
- International publisher of reference books, software, and newsletters.
- http://www.dashofer.com.cy

Citadel Data Net
- Reference and consumer publishers.
- http://www.citadeldata.co.uk

Libraries Unlimited
- Publishes bibliographies and reference books, library science textbooks, information science materials, and practical handbooks, monographs, and manuals for library educators, librarians and teachers.
- http://www.lu.com/

Institute for Scientific Information
- Publishes scholarly research databases in the sciences, social sciences, and arts and humanities.
- http://www.isinet.com/

Moschovitis Group
- Information technology and reference publishing.
- http://www.mosgroup.com/

Trident Press
- Publishes reference books, including dictionaries, encyclopedias, and atlases.
- http://www.trident-international.com/

Words@Random
- Publishes references materials, including dictionaries, handbooks and encyclopedias.
- http://www.randomhouse.com/words/

ABC-CLIO
- Publisher of reference books, CD-ROM products, and research publications.
- http://www.abc-clio.com/

Merriam-Webster
- Publisher of American English dictionaries and reference sources.
- http://www.m-w.com/

R.R. Bowker
- Publishes reference products such as Publishers Trade List Annual, Books in Print, and Ulrich's International Periodicals Directory. Serves as official US ISBN agency.
- http://www.bowker.com/

Facts On File, Inc.
- Publisher of print and electronic reference products for the school and library market.
- http://www.factsonfile.com/

McFarland & Company, Inc.
- Publisher of scholarly and reference books.
- http://www.mcfarlandpub.com/

Shogakukan, Inc.
- Japanese publisher of dictionaries, educational, and other non-fiction and fiction works, including manga books.
- http://skygarden.shogakukan.co.jp/sol/ENGLISH/index.html

Europa Publications
- Publishes a series of regularly revised reference books that cover international affairs, politics, and economics.
- http://www.europapublications.com/

Marshall Cavendish Corporation
- Publisher of illustrated reference and children's books.
- http://www.marshallcavendish.com/

Marquis Who's Who
- Publishes biography reference sources covering notable people throughout the world.
- http://www.marquiswhoswho.com/

ETS Publishing House
- Publishes Russian-English dictionaries.
- http://www.ets.ru/

BRB Publications, Inc.
- Offers products and services dedicated to searching and understanding of public records.
- http://www.brbpub.com/

Primary Source Microfilm
- Publisher of archival research materials researchers in the humanities and social sciences.
- http://www.galegroup.com/psm/

Quirk Books
- Publishers of irreverent pop-culture, humor, gift, self-help, and impractical reference books.
- http://www.quirkbooks.com/

Librairie du Liban Publishers
- Offers monolingual, bilingual, and multilingual dictionaries, encylopedias, and books.
- http://www.ldlp.com/

EBSCO Information Services
- Offers databases, electronic journals, books, and subscription services.
- http://www.ebsco.com/

Collins Cobuild
- Publishes dictionaries and reference works for teachers and learners of English.
- http://www.cobuild.collins.co.uk/

Book Hunter Press
- Publishes reference materials for book delears, including the Used Book Lover's Guides.
- http://www.bookhunterpress.com/

Helicon
- Publisher of the Hutchinson Encyclopedias.
- http://www.helicon.co.uk

Gale Group
- Reference products for libraries, schools and businesses.
- http://www.galegroup.com

Kinship
- Publishes books and CD-ROMs, including many New York State source records for genealogists. Also includes research suggestions.
- http://www.kinshipny.com/

H.W. Wilson Company
- Publisher of web, CD-ROM, and print references for librarians and researchers.
- http://www.hwwilson.com/

Bernan
- Publisher of statistical and government references. Distributes information published by the U.S. government and international agencies.
- http://www.bernan.com/