| Parent company | Infobase Publishing |
|---|---|
| Founded | 1985 |
| Founder | Frederick Gale Ruffner, Jr. and Peter Ruffner |
| Country of origin | United States |
| Headquarters location | Detroit, Michigan |
| Nonfiction topics | Reference |
| Official website | 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]
References
- About Us – Retrieved October 3, 2014
- ""Frederick Gale Ruffner, Jr." Grosse Pointe News. – Retrieved October 3, 2014". Archived from the original on August 8, 2016. Retrieved October 3, 2014.
- "Gale Research founder Frederick Ruffner dies at 88" Crain's Detroit Business. – Retrieved October 3, 2014
- ""Gale Founder Frederick Ruffner Dies at 88" Library Journal. – Retrieved October 3, 2014". Archived from the original on May 18, 2017. Retrieved October 3, 2014.
- "Frederick Ruffner, founder of reference book powerhouse Gale Research, dies at 88" Detroit Free Press. – Retrieved October 3, 2014
- ""Publisher was 'a pioneer of the information age'" Detroit News. – Retrieved October 3, 2014". Archived from the original on October 6, 2014. Retrieved October 3, 2014.
- "Infobase Acquires Omnigraphics, Expanding Portfolio of Critical Health Reference Content for Educators and Librarians".