EquuSearch says Craig Kettler has been in contact with his family.
The family is also requesting everyone to respect their privacy at this time.
On Monday, Texas EquuSearch said they were flying over an area along I-10 where they believe they spotted the teacher's vehicle.
Alvin ISD was also involved in the search before he was found safe.
"The students love him, the parents love him, we love him," said Alvin ISD director of communications Renae Rives who is helping get the word out about the teacher's initial disappearance. "He does so much for our kids and for the community and that’s why we’re so concerned”
Colleagues say a tug-of-war video recently posted on Alvin FFA’s Facebook page illustrates his passion for working with kids.
Thousands of people go missing every year across the United States, and there are organizations and law enforcement agencies that work to bring them home to loved ones.
The Texas Center for the Missing is an organization with Houston roots that works to educate loved ones and authorities on finding the lost.
From resources that deal with missing children to endangered adults, the non-profit organization has compiled a wealth of resources to help.
There is no 24-hour waiting period required to report a person missing, according to the Harris County Sheriff's Office.