| Name | Count | Years active |
|---|---|---|
| Houghton Mifflin | 4828 | 1940, 1955, 1963, 1978, 1980-1985, 1987-1994, 1996-2009 |
| Houghton Mifflin Co. | 1596 | 1977, 1980-1981, 1983, 1988, 1991, 1994-1995, 1997-2009 |
| Clarion Books | 881 | 1978, 1983, 1992, 1995-2009 |
| Houghton Mifflin Company | 257 | 1946, 1993, 1999-2009 |
| McDougal Littell | 132 | 2000-2009 |
| Houghton Mifflin Harcourt | 91 | 2008-2009 |
| Nextext | 45 | 2000-2003 |
| Graphia | 27 | 2002, 2004-2007 |
| Houghton Mifflin Co | 25 | 2000-2005, 2008 |
| Lahaska Press | 12 | 2002, 2005, 2007-2008 |