- *Interns must be currently enrolled or employed at a U.S. university or other research institution and must currently reside in, and be eligible to work in, the United States.
 - ** OSoC is only open to Belgian students.
 
| Name | Awards | Timeline | 
|---|---|---|
| GCI | Prizes for winners | timeline | 
| Bountiful Open Source Summer- BOSS | Prizes for winners* | timeline | 
| FOSSASIA Codeheat | Prizes for winners | timeline | 
| Data Driven Competitions | Cash prizes for winners | timeline | 
| Quantopian Open | Cash prizes for winners | NULL | 
| Hacktoberfest | Swag rewards | timeline | 
| 24 Pull Requests | No prizes offered | timeline | 
| Halite AI Bot Challenge | Swag rewards for winners | NULL | 
| OSS World Challenge | Prizes for winners | timeline | 
| ACM MM Open Source Software Competition | Prize for winners | NULL | 
| Girlscript Summer of Code | Prizes, swag rewards and internship opportunities for winners | timeline | 
- *Indian Students Only
 - ** OSS World Challenge has temporarily stopped accepting international applications.
 
| Name | Awards | Timeline | 
|---|---|---|
| OSS Summer of Innovation | Swag rewards | |
| NJACK Winter Of Code | Swag rewards | |
| Kharagpur Winter Of Code | Swag rewards | |
| OpenCode IIITA | Swag rewards | |
| MDG Winter of Code | No | |
| FOSSEE Summer Fellowship | No | |
| DAWOC | No | |
| Winter of Code by NSEC | Swag rewards |