The Steele Prize for Seminal Contribution to Research is awarded for a paper, whether recent or not, that has proved to be of fundamental or lasting importance in its field, or a model of important research.

Special Note: The Steele Prize for Seminal Contribution to Research is awarded according to the following six-year rotation of subject areas:
1. Analysis/Probability (2020);
2. Algebra/Number Theory (2021);
3. Applied Mathematics (2022);
4. Geometry/Topology (2017);
5. Discrete Mathematics/Logic (2018);
6. Open (2019).