|
winner | |
| 2019 | Blackfish City, Sam J. Miller |
| 2018 | The Genius Plague, David Walton |
| 2017 | Central Station, Lavie Tidhar |
| 2016 | Radiomen, Eleanor Lerman |
| 2015 | The First Fifteen Lives of Harry August, Claire North |
| 2014 | Strange Bodies, Marcel Theroux |
| 2013 | Jack Glass, Adam Roberts |
| 2012 | (tie) The Highest Frontier, Joan Slonczewski |
| 2012 | (tie) The Islanders, Christopher Priest |
| 2011 | The Dervish House, Ian McDonald |
| 2010 | The Windup Girl, Paolo Bacigalupi |
| 2009 | (tie) Song of Time, Ian R. MacLeod |
| 2009 | (tie) Little Brother, Cory Doctorow |
| 2008 | In War Times, Kathleen Ann Goonan |
| 2007 | Titan, Ben Bova |
| 2006 | Mindscan, Robert J. Sawyer |
| 2005 | Market Forces, Richard Morgan |
| 2004 | Omega, Jack McDevitt |
| 2003 | Probability Space, Nancy Kress |
| 2002 | (tie) Terraforming Earth, Jack Williamson |
| 2002 | (tie) The Chronoliths, Robert Charles Wilson |
| 2001 | Genesis, Poul Anderson |
| 2000 | A Deepness in the Sky, Vernor Vinge |
| 1999 | Brute Orbits, George Zebrowski |
| 1998 | Forever Peace, Joe Haldeman |
| 1997 | Fairyland, Paul J. McAuley |
| 1996 | The Time Ships, Stephen Baxter |
| 1995 | Permutation City, Greg Egan |
| 1994 | no award |
| 1993 | Brother to Dragons, Charles Sheffield |
| 1992 | Buddy Holly Is Alive and Well on Ganymede, Bradley Denton |
| 1991 | Pacific Edge, Kim Stanley Robinson |
| 1990 | The Child Garden, Geoff Ryman |
| 1989 | Islands in the Net, Bruce Sterling |
| 1988 | Lincoln's Dreams, Connie Willis |
| 1987 | A Door Into Ocean, Joan Slonczewski |
| 1986 | The Postman, David Brin |
| 1985 | The Years of the City, Frederik Pohl |
| 1984 | The Citadel of the Autarch, Gene Wolfe |
| 1983 | Helliconia Spring, Brian W. Aldiss |
| 1982 | Riddley Walker, Russell Hoban |
| 1981 | Timescape, Gregory Benford |
| 1980 | On Wings of Song, Thomas M. Disch |
| 1979 | Gloriana, Michael Moorcock |
| 1978 | Gateway, Frederik Pohl |
| 1977 | The Alteration, Kingsley Amis |
| 1976 | no award |
| 1975 | Flow My Tears, the Policeman Said, Philip K. Dick |
| 1974 | (tie) Rendezvous with Rama, Arthur C. Clarke |
| 1974 | (tie) Malevil, Robert Merle |
| 1973 | Beyond Apollo, Barry N. Malzberg |
|
retrospective prize | |
| 1976 | The Year of the Quiet Sun, Wilson Tucker |
|
special award for excellence in writing | |
| 1973 | Dying Inside, Robert Silverberg |
|
nonfiction book | |
| 1974 | The Cosmic Connection, Carl Sagan |