There are three individuals in the image. The person on the left is wearing a yellow vest with "NTSB" written on it, indicating they are from the National Transportation Safety Board. The person in the middle is also wearing a yellow vest and appears to be holding a piece of equipment or tool. The person on the right is wearing a green vest and is holding a similar piece of equipment. All three individuals are standing close together, suggesting they might be working together on an aviation-related task.