Business & Finance Abbreviations and Acronyms

1. IRRDB
   International Rubber Research and Development Board
2. IRRS
   International Rail Road Systems Incorporated
3. IRRS
   International Rail Road Systems, Inc.
4. IRS
   Interest Rate Swap
5. IRS
   U.S. Internal Revenue Service
6. IRSA
   Infrared Science Archive
7. IRSA
   International Rural Sociology Association
8. IRSAC
   Internal Revenue Service Advisory Council
9. IRSCI
   Internal Revenue Service Criminal Investigation division
10. IRSE
    Institution of Railway Signal Engineers
11. IRSN
    Internal Revenue Service Number
12. IRSS
    International Review for The Sociology of Sport
13. IRT
    Irtysh Airlines
14. IRTA
    International Reciprocal Trade Association
15. IRTA
    Irish Rider Training Association
16. IRTE
    Institute of Road Transport Engineers
17. IRTP
    Internal Revenue Tax Paid
18. IRU
    iShares Russell 2000 Exchange Traded Fund
19. IRV
    Interserve Plc (London Stock Exchange [LSE])
20. IRV
    Income Rate and Value

Last updated: August 31, 2021 — Total entries: 49,535