- Upstone Materials (Cheyenne, WY)
- SIMON | Manufacturing Intern 2025 (Multiple Locations) Subsidiary: Simon Simon is a subsidiary of Colas USA with operations throughout Colorado, ... the pioneers alive and well. To learn more about Simon visit www.simonteam.com/ . Throughout Colas USA, we provide...and testing lab sites * Assisting work crews in manufacturing and crushing operations * Operating heavy equipment *… more