Delta Team was a team affiliated with Section 31. This team ferried thrusters from an unspecified location in the Sol system to the Io Facility using cargo shuttles for use in the construction of the USS Vengeance.
Upon approaching the facility in 2259, the bridge crew of the Vengeance cleared the team to enter and directed them to loading dock 12. Montgomery Scott, in his shuttlecraft, joined the team as it entered the facility. (Star Trek Into Darkness)