Only IPC authorized certification centers and/or currently certified IPC trainers may certify people for a certain certification program.
In case of doubt you could get a confirmation on the validity of this organization from IPC or ask the concerned organization regarding the qualification of their trainer for this specific training (does this person have a valid IPC J-STD-001 CIT or MIT certificate?).
PIEK by the way is an IPC authorized training center for all IPC Certifications and employs only certified and experienced trainers.