| 1953 |
| Novel: | "The Demolished Man" by Alfred Bester |
| Professional Magazine (tie): | Galaxy, Astounding |
| Excellence in Fact Articles: | Willy Ley |
| Cover Artist (tie): | Ed Emshwiller, Hannes Bok |
| Interior Illustrator: | Virgil Finlay |
| New SF Author or Artist: | Philip Jose Farmer |
| Number 1 Fan Personality: | Forrest J Ackerman |
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| 1954 |
| No Awards Given |
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| 1955 |
| Novel: | "They'd Rather Be Right" by Mark Clifton&Frank Riley |
| Novelette: | "The Darfsteller" by Walter M. Miller, Jr. |
| Short Story: | "Allamagoosa" by Eric Frank Russell |
| Magazine: | Astounding |
| Artist: | Frank Kelly Freas |
| Fan Magazine: | Fantasy Times (James V. Taurasi, Sr.& Ray Van Houten, eds.) |
| Special Award: | Sam Moskowitz as "Mystery Guest" and for his work on past conventions. |
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| 1956 |
| Novel: | "Double Star" by Robert A. Heinlein |
| Novelette: | "Exploration Team" by Murray Leinster |
| Short Story: | "The Star" by Arthur C. Clarke |
| Feature Writer: | Willy Ley |
| Magazine: | Astounding |
| Artist: | Frank Kelly Freas |
| Fanzine: | Inside & Science Fiction Advertiser (Ron Smith, ed.) |
| Most Promising New Author: | Robert Silverberg |
| Book Reviewer: | Damon Knight |
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| 1957 |
| American Professional Magazine: | Astounding |
| British Professional Magazine: | New Worlds |
| Fan Magazine: | Science Fiction Times (James V. Taurasi, Ray Van Houten, and Frank Prieto, eds.) |
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| 1958 |
| Novel or Novelette: | "The Big Time" by Fritz Leiber |
| Short Story: | "Or All the Seas With Oysters" by Avram Davidson |
| Outstanding Movie: | The Incredible Shrinking Man |
| Magazine: | Fantasy & Science Fiction |
| Outstanding Artist: | Frank Kelly Freas |
| Outstanding Actifan: | Walter A. Willis |
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| 1959 |
| Novel: | "A Case of Conscience" by James Blish: |
| Novelette: | "The Big Front Yard" by Clifford D. Simak |
| Short Story: | "That Hell-Bound Train" by Robert Bloch |
| SF or Fantasy Movie: | No Award |
| Professional Magazine: | Fantasy & Science Fiction |
| Professional Artist: | Frank Kelly Freas |
| Amateur Magazine: | Fanac (Ron Ellik and Terry Carr, eds.) |
| New Author of 1958: | No Award but Brian W. Aldiss received a plaque as runner-up |
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