| Archive Editions: UK-based publishers of historical documents and maps particularly concerning the Middle East, South-East Asia and the Balkans. |
| Belle Grove Publishing Co.: Providing rare and previously unpublished material on the American Civil War. |
| Day Books.com: Publishing diaries from around the world such as a 16th century alchemist, a diplomat in Stalin's Russia, and an escapee from a Nazi labour camp. |
| Horse Creek Publications: Publishes books on the history of the western U.S. |
| Huia Ltd.: A Wellington, New Zealand -based publisher specialising in books that focus on the indigenous people of Maori. |
| Looney Book: Publisher of American history titles. |
| South Platte Press: Publisher of historical books about railroads, focusing on the American Great Plains and West. |
| The Narrative Press: Prints first-person accounts of historic adventures. |
| The Yukoner Magazine: Publisher of history magazine and books about Bush pilots, trappers, miners, outdoor adventures, and character profiles. |
| Western Reflections Publishing: Features works reflecting the history and culture of the western United States with an emphasis on the State of Colorado. |