|Location:||La Cañada, California|
|Mentioned in:||"Day 5: 3:00pm-4:00pm"|
- Not to be confused with Teradyne.
Before Day 5Edit
During CTU's investigation on the proceedings of nerve gas, Chloe O'Brian found out about Terra-Dyne's acquisition of strontium isotope, and informed Jack Bauer. Jack Bauer decided to go directly to Omicron International, which was the parent corporation of Terra-Dyne.