What does PTIS stand for?

What does PTIS mean?

PTIS	Plasma Therm, Inc. Business » NASDAQ Symbols
PTIS	Photo Thermal Ionization Spectroscopy Academic & Science » Electronics
PTIS	Prem Tinsulanonda International School Community » Schools
PTIS	President of Transitional Islamic State Governmental » Politics
PTIS	Packaging Technology Integrated Solutions Business » Firms
PTIS	Permit Tracking Issuance System Governmental » US Government
PTIS	Posterior Talar Impingement Syndrome Medical » Physiology
PTIS	Perguruan Tinggi Ilmu Statistik International » Indonesian
PTIS	Program Test Input System Governmental » NASA