The meaning of the Acronym SIA is...

SIA is

• Security Integration Architecture
• Singapore Institute Of Architects
• Singular Indefinite Article
• Statics Integrated Assessment
• Secret Imperial Assassins
• A Self Interstitial Atom
• Sobriety In Action
• Sorry Im Afraid
• Strategic Investment Area

More Meanings For SIA:

• Semiconductor Industry Association
• Student Internet Association
• Students' Internet Association
• Society of Insurance Accountants
• Securities Industry Act
• Securities Industry Association
• Signal Apparel, Inc.
• Software Industry Association
• Special Instructional Assistance
• Safety Institute of Australia
• strip immunoblot assay
• Solar Inertial Attitude
• Software Impact Assessment
• Shuttle Induced Atmosphere
• Shadow Investigation Agency

SIA is also in:

• Accounting
• Educational
• Electronics
• FDA
• General
• NASA
• Non-Profit Organizations
• NYSE Symbols
• Police
• Professional Organizations
• Universities