| American Chemistry Council's | Academic & Science |
| Architectural Control Committee | Academic & Science |
| Antichemical corps | Academic & Science |
| Accelerated Curing of Concrete | Academic & Science |
| Architectural Covenant Changes | Academic & Science |
| Academy of Sciences of Cuba | Academic & Science |
| Academia de Ciencias de Cuba | Academic & Science |
| Chilean Academy of Sciences | Academic & Science |
| Academia Chilena de Ciencias | Academic & Science |
| Anthropogenic Climate Change | Academic & Science |
| Antarctic Circumpolar Current | Academic & Science |
| Alaska Coastal Current | Academic & Science |
| Armstrong County Campus | Academic & Science |
| Academic Challenge Competition | Academic & Science |
| Atlantic Creampuff Conference | Academic & Science |
| Academic Communications Contact | Academic & Science |
| Atlantic Coast Conference | Academic & Science |
| American Control Conference | Academic & Science |
| Army Cadet College | Academic & Science |
| Accra | Airport Code |
| Associated Co-operative Creameries | Business |
| Abhyudaya Cash Certificate | Business |
| Amica Mature Lifestyles, Inc./Style de Vie Amica, Inc. | Business |
| Another Customer Closed | Business |
| Accredited Certified Coach | Business |
| Austin Convention Center | Business |
| Advanced Computer Connections | Business |
| Advanced Computer Controls | Business |
| Administrative Committee for Coordination | Business |
| Air Canada Centre | Business |
| Accident Compensation Corporation | Business |
| Accredited Clinical Coder | Business |
| Anaheim Convention Center | Business |
| Automotive Credit Corporation | Business |
| Access Intelligence, P.L.C. | Business |
| Associate Certified Coach | Certifications |
| Aluminum Carbon Carbon | Chemistry |
| American Chemical Council | Chemistry |
| Aluminum Carbon Competition | Chemistry |
| American Chemistry Council | Chemistry |
| Amorphous Calcium Carbonate | Chemistry |
| American Conference of Cantors | Community |
| American Campus Communities | Community |
| Antlanctic Coast Conference | Community |
| Almost College Conference | Community |
| Akers Culture Collection | Community |
| Arusha Community Church | Community |
| Academic Computer Club | Community |
| Associated Catholic Colleges | Community |
| Archdeaconry Court of Cornwall | Community |
| American Crafts Council | Community |
| Animal Care Committee | Community |
| Arab-American and Chaldean Council | Community |
| Austin Chinese Church | Community |
| Author Created Character | Community |
| Asnuntuck Community College | Community |
| Arthur C. Clarke | Community |
| Aspenwood Challenge Center | Community |
| Anglican Church of Canada | Community |
| Alpena Community College | Community |
| Automatic Color Control | Community |
| Asthmatic Children's Conference | Community |
| All Conference Cheer | Community |
| American Conservation Coalition | Community |
| Analog Control Channel | Computer and Networking |
| Automatic Call Center | Computing |
| Atari Competence Center | Computing |
| Application Client Container | Computing |
| Audio Communications Controller | Computing |
| Assured Cloud Computing | Computing |
| Autonomic Cloud Computing | Computing |
| Applied Cloud Computing | Computing |
| Advanced Computer Concepts | Computing |
| Advanced Computing Company | Computing |
| Apple Computer Company | Computing |
| Advanced Cloud Computing | Computing |
| Application Container Cloud | Computing |
| Anti Cyber Crime | Computing |
| Automatic Configuration Client | Computing |
| Anonymous Crazy Crackpots | Computing |
| Active Accessibility Core Component | Computing |
| Accept Link Service | Computing |
| Advanced Computer Communications | Computing |
| Aggregate Core Component | Computing |
| Advanced Concept Construction | Computing |
| Active Control Channel | Computing |
| Application Control Command | Computing |
| Access Command | Computing |
| Advanced Communications Controller | Computing |
| Area Communication Controller | Computing |
| Atm Cross Connector | Computing |
| Attribute Collection Context | Database Management |
| American College of Cardiology | Educational Institute |
| Adirondack Community College | Educational Institute |
| All College Council | Educational Institute |
| Austin Community College | Educational Institute |
| Alvin Community College | Educational Institute |
| Alamance Community College | Educational Institute |
| Association of Chiropractic Colleges | Educational Institute |
| Arapahoe Community College | Educational Institute |
| Associated Colleges In China | Educational Institute |
| Actual Carriers Created | Electronics |
| Program (dr-dos - Viewmax) (gem / Resident) | File Type |
| According ACC Accident | General |
| Air Combat | General |
| Agricultural Credit Corporation | General |
| Acceding and Candidate Countries | General |
| Adobe Creative Cloud | General |
| Active Clearance Control | General |
| Animal Crossing Community | General |
| Avigilon Control Center | General |
| Anger Control Counseling | General |
| Associated Cement Companies | General |
| Accessories | General |
| Alternative Comntry Collective | General |
| Adrenal Cortical Carcinoma | General |
| Animal Control Center | General |
| Air Cargo Carriers | General |
| Aluminum Copper Composite | General |
| Automatic Combustion Control | General |
| Area Control Centre | General |
| Abbreviations com Accessories | General |
| Atlantic Coast Cotton | General |
| Always Comfortable Confines | General |
| Air Care Climatronic | General |
| American Car Club | General |
| Audi Centre Canberra | General |
| Adjustable Chassis Control | General |
| Automotive Competence Center | General |
| Automobile Carriers Conference | General |
| Automovil Club de Chile | General |
| Automotive Cluster Centrope | General |
| Automotive Consulting Cluster | General |
| All Collector Cars | General |
| Armoured Car Company | General |
| Auto Cosmetic Center | General |
| Automotive Climate Control | General |
| Automobile Club de Cannes | General |
| Automobile Club de Champagne | General |
| Alliance Canadienne du Camionnage | General |
| Asociacion Colombiana de Camioneros | General |
| Amigos del Los Coches Clasicos | General |
| Alfa Classic Club | General |
| Automovil Club de Campanario | General |
| Auckland Car Club | General |
| Air Cooled Cruisers | General |
| American Coach Corporation | General |
| Automotive Cell Company | General |
| Ah Cannie Cook | General |
| A Complete Catastrophe | General |
| All Cash Conference | General |
| Always Consider Cheating | General |
| Assetto Corsa Competizione | General |
| Amateur Campus Conference | General |
| Hyundai Accent | General |
| Allegedly Competitive Conference | General |
| Avanza Celebes Club | General |
| Adelaide Cruisin' Classics | General |
| Apple Cider Century | General |
| Aussie Commodores Club | General |
| Antique Car Club | General |
| Auckland Corvette Club | General |
| Asian Carmakers Corporation | General |
| Auto Check Center | General |
| Audi Car Configurator | General |
| Autoliv China Changchun | General |
| Automovil Club de Colombia | General |
| Advanced Concepts Center | General |
| Another Crappy Call | General |
| Alvis Car Club | General |
| All Crap Conference | General |
| Association of Cheesy Colleges | General |
| Acceleration Acc Accessory | General |
| Automotive Consulting Company | General |
| Automotive Composites Consortium | General |
| Advanced Concept Car | General |
| Auto Century Club | General |
| Agenesis of the Corpus Callosum | General |
| American Custom Cabrio | General |
| America's Corvette Club | General |
| All Cupcake Conference | General |
| Assinine Confusion Collective | General |
| Atomic City Corvettes | General |
| Atlanta's Chosen Conference | General |
| Automobile Club of Canada | General |
| Acetyl CoA Carboxylase | General |
| Accept Control and Choose | General |
| Alberta Cobra Club | General |
| A Crappy Conference | General |
| Animal Care Centers | General |
| Air Conditioner Control | General |
| Algoa Correctional Center | General |
| Air Conditioning Clutch | General |
| Automatic Cruise Control | General |
| Attributes Components Capabilities | General |
| Andre Citroen Club | General |
| Aisha Clan Clan | General |
| American Custom Coachworks | General |
| Anti Collision Control | General |
| Arizona Chess Central | General |
| Active Cruise Control | General |
| Amicale des Clubs Citroen | General |
| Area Control Center | General |
| Automatic Climate Control | General |
| Autoclaved Cellular Concrete | General |
| Association des Chauffeurs de Cars | General |
| Auto Alarm Cut | General |
| Active Cylinder Control | General |
| Auxiliary Cadet Corps | General |
| Adaptive Chassis Control | General |
| Auxiliary Cadet Crops | General |
| Advanced Cruise Control | General |
| Attack Chain Counter | General |
| Autonomous Cruise Control | General |
| Access Control Class | General |
| Anyone Can Compete | General |
| Active Cornering Control | General |
| Automotive Communication Council | Governmental |
| Airport Consultants Council | Governmental |
| Automotive Communications Council | Governmental |
| Association of Corporate Counsel | Governmental |
| accident | Governmental |
| Anti Corruption Commission | Governmental |
| American Craft Council | Governmental |
| Airports Consultants Council | Governmental |
| Air Traffic Controller Chief Petty Officer | Governmental |
| Air Controlman Chief Petty Officer | Governmental |
| Army Commanders' Conference | Governmental |
| Army Communications Command | Governmental |
| Air Center Commander | Governmental |
| Arizona Corporation Commission | Governmental |
| Auto Cruise Control | Governmental |
| Anti-Capitalist Convergence | Governmental |
| Adaptive Control Constraint | Governmental |
| Adventure Concept Car | Governmental |
| Assistant Chief Constable | Governmental |
| Administrative Committee on Coordination | Governmental |
| Adelaide City Council | Governmental |
| RCHSA (Radiation Control for Health and Safety Act) ACCession number | Governmental |
| Anglican Consultative Council | Governmental |
| According | Internet |
| Act Certified Consultant | Jobs |
| Assistant County Commissioner | Jobs |
| Association Corporate Counsel | Jobs |
| Ascending Chain Condition | Maths |
| Adaptive Combinations of Classifiers | Maths |
| Accutane | Medical |
| acetyl coenzyme A carboxylase | Medical |
| Acinic Cell Carcinoma | Medical |
| Adenoid Cystic Carcinoma | Medical |
| Adjusted Credit Ceiling | Medical |
| Agenesis of Corpus Callosum | Medical |
| Alveolar Cell Carcinoma | Medical |
| Ambulatory Care Center | Medical |
| Anodal Closure Contraction | Medical |
| Association of County Councils | Medical |
| Accommodation | Medical |
| Anti-Coagulation Clinic | Medical |
| Adrenocortical Cancer ACC | Medical |
| Allergy Control Covers | Medical |
| Absolute Concentration Curve | Medical |
| Aplasia Cutis Congenita | Medical |
| Anyone Can Come | Messaging |
| Architecture Control Committee | Military and Defence |
| Army Competitive Category | Military and Defence |
| Army Command Center | Military and Defence |
| Air Control Center | Military and Defence |
| Airspace Coordination Center | Military and Defence |
| Alternate Control Center | Military and Defence |
| Army Communications Command (now Isc) | Military and Defence |
| Army Component Commander | Military and Defence |
| Alarm Control Center | Military and Defence |
| Air Component Commander | Military and Defence |
| Area Coordination Center | Military and Defence |
| Army Contracting Command | Military and Defence |
| Army Cyclist Corps | Military and Defence |
| Army Communications Command (ft. Huachuca, Az) | Military and Defence |
| ACC Limited | NSE Company Symbol |
| Australian Crime Commission | Regional |
| Accra, Ghana | Regional |
| African Community Center | Regional |
| Anglican Catholic Church | Society & Culture |
| Aspect Component Configuration | Softwares |
| Aft Cargo Carrier | Space Science |
| Atlantic Coast Championships | Sports |
| Adaptive Cruise Control | Sports |
| Asian Cricket Championship | Sports |
| Air Canada Centre (toronto, Ontario) | Sports |
| All Canes Conference | Sports |
| American Cribbage Congress | Sports |
| Automatic Carrier Control | Telecommunication |