PTIN Acronym
PTIN
Postini Threat Identification Network
Business - Companies & Firms
PTIN
Postini Threat Identification Network
Computing - Cyber & Security
PTIN
Preparer Tax Identification Number
Governmental - US Government
PTIN
Preparer Tax Identification Number
Business - International Business
PTIN
Preparer Tax Identification Number
Business - General
PTIN
Preparer Tax Identification Number
Business - Accounting
PTIN
Polskie Towarzystwo Informacji Naukowej
Miscellaneous