CSI

Comunità di Stati Indipendenti

Centro Sistemi Informativi

Centro Sportivo Italiano

Componenti e Sistemi per Impianti

Consorzio Suonatori Indipendenti

Creazione Studio Immagine

Centre de Santé Intégré

Cité des Sciences et de l'Industrie

California Security Institute

California Steel Industries, Inc.

Called Subscriber Identification

CAMEL Subscription Information

Campbell Scientific, Inc.

Can't Say It

Can't Spell It

Can't Stand Idiots

Canada Steamship Inspection

Canadian Securities Institute

Canadian Society of Immigration

Canadian Sugar Institute

Cardiological Society of India

Career Sports International

Caregiver Strain Index

Carrier Scale Internetworking

Casino Service Industry

Cast Stone Institute

Causal Side Information

Cell Sequence Integrity

Center for School Improvement

Center for Social Inclusion

Center for the Study of Intelligence

Centre for Sociology of Innovation

Centric Software, Inc.

Cetacean Society International

Channel State Information

Charter Schools Institute

Chemical Shift Imaging

Chemical Shift Index

Chemical Substances Inventory

Chhatrapati Shivaji International Airport

Chi Sigma Iota

Chicago Systemic Initiative

Child Support Intervention

ChildSafe International

Christian Schools International

Christian Solidarity International

Church of Scientology International

Church of South India

Civil Society Institute

Civil Society International

Clean Sites, Inc.

Clearing Subnetwork Identification

Clutter Suppression Interferometry

Coalition of Service Industries

Coastal and Small Islands

Code Sequence Identification

Codeset Independence

Coelliptic Sequence Initiation

Cold Start Injector

College of Staten Island

Collision Safety Institute

Collision Specialists Inc

Combat Studies Institute

Combat System Integration

Combat System Interface

Combined Stress Index

Command Sequence Introducer

Command Special Interest

Command String Interpreter

Commercial SATCOM Interconnectivity

Commercial Satellite Imagery

Commercial Satellite Interconnectivity

Commercial Systems Integrator

Commodity Systems, Inc.

Common Sense Initiative

Common Shared Infrastructure

Common Software Interface

Common System Interface

Communication Sciences Institute

Communications Solutions Incorporated

Communications-Computer Systems Integration

Community of Independent States

Compact Source Iodide

Companion of the Star of India

Competitive Strategies Initiative

Compliance Sampling Inspection

Compressor Systems, Inc.

Compton Scatter Imaging

Computer & Structures, Inc.

Computer Security Institute

Computer Security Instructions (AT&T)

Computer Society of India

Computer Supported Instruction

Computer Systems Installation

Computer Systems Integration

Computers & Structures, Inc

Computers & Structures, Inc.

Computers and Structures, Inc.

Concours de Saut International

Conditional Symmetric Instability

Conference Systems, Inc.

Configuration Status Item

Consolidated Software Index

Constant Scan Impedance

Construction Specifications Institute

Consultant and Systems Integrator

Consumer Safety Inspector

Consumers Software Incorporated

Container Security Initiative

Container Security Initiative

Continuous Supplier Involvement

Contract Simulator Instructor

Contract Source Inspection

Contractor Simulator Instruction

Contractor Source Inspection

Contrast Source-Inversion

Control Servo Input

Controls Structures Interactions

Controls/Structures Interaction

CONUS Sustaining Increment

Coral Sea Islands

Core Systems, Inc.

Corinthian Schools, Inc.

Corporación Siderúrgica Integral, SA

Corporate Social Initiative

Corporate Social Involvement

Costlink Systems Inc

Cougaar Software, Inc.

Counter Strike Investigations, Inc.

CPU Support Identification

Crazy Space Incest

Creative Specialties International

Creative Strategies International

Crew Software Interface

Crime Scene Investigation

Crime Stoppers International

Critical Safety Item

Critical Success Index

critical sustainability item

Crop System Interface

Crowbar Swinging Idiots

Crystal Structure Imaging

Cuban Studies Institute

Current Source Inverter

Customer and Subscriber Integrator

Customer Satisfaction Index

Customer Satisfaction Indicator

Customer Service Index

Customer Service Indicator

Customer Service Inquiry

Customer Service Issue

Customer Support Identification

Customer Support Identifier

Cyber Semiotic Institute

CyberScope Investigations LTD

Cyclic Steam Injection

Cytoplasmic Sperm Injection

Czech Standards Institute

CompuServe, Inc.

Crime Scene Investigator

Colegio San Ignacio

Confederación Sindical Internacional

Consejo Superior de Investigaciones