Omnigraphics

Omnigraphics is a publishing company located in Detroit, Michigan founded by Frederick Gale Ruffner, Jr. and his son Peter in 1985. The company was acquired by Aggregate Intelligence in 2015. [1] [2][3][4][5][6] It was sold to Infobase Publishing in 2022.[7]

Omnigraphics
Parent companyInfobase Publishing
Founded1985
FounderFrederick Gale Ruffner, Jr. and Peter Ruffner
Country of originUnited States
Headquarters locationDetroit, Michigan
Nonfiction topicsReference
Official websiteomnigraphics.com

References
  1. About Us – Retrieved October 3, 2014
  2. ""Frederick Gale Ruffner, Jr." Grosse Pointe News. – Retrieved October 3, 2014". Archived from the original on August 8, 2016. Retrieved October 3, 2014.
  3. "Gale Research founder Frederick Ruffner dies at 88" Crain's Detroit Business. – Retrieved October 3, 2014
  4. "Gale Founder Frederick Ruffner Dies at 88" Library Journal. – Retrieved October 3, 2014
  5. "Frederick Ruffner, founder of reference book powerhouse Gale Research, dies at 88" Detroit Free Press. – Retrieved October 3, 2014
  6. "Publisher was 'a pioneer of the information age'" Detroit News. – Retrieved October 3, 2014
  7. "Infobase Acquires Omnigraphics, Expanding Portfolio of Critical Health Reference Content for Educators and Librarians".
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