- Chromedia
- Chuhay-Varacelli Inc
- CIA Media Network
- Cimini & Co
- Cincinnati Creative Marketing
- Circone & Assoc
- Circulars Unlimited
- Citigate
- City Buy Inc
- CKHS
- CKPR
- Clarke Advertising Inc
- Classic Automotive Marketing
- Classified Directories
- Classified USA
- Claudia Brown & Co
- Clay Creative Grp
- Clayman Advertising
- Clear Channel Outdoor
- Clear Pointe Communication Inc
- Cleveland Advertising Assoc
- Cleveland Automobile Dealers
- Cliff Freeman & Partners
- Cloud 9 Design
- CME Creative Svc Inc
- CMS Partners
- Coates Creative
- Coates Kokes
- Cobalt Creative
- Cogan Assoc
- Cohn & Wells
- Colby & Partners
- Cole & Assocs Media Rep
- Collaborations
- Collaborations
- Collinson & Co Inc
- Colonial Advertising
- Color Impact Advertising
- Colorgraphic Studios Inc
- Colortone Technology Inc
- Columbia University Press
- Com Group
- Combined Book Exhibit
- Commercial Image
- Commercial Success Inc
- Common Goals
- Communica
- Communicating Arts
- Communication Associates
- Communication Corps
- Communication House Inc
- Communication Services
- Communications Group
- Communications Plus Inc
- Communiplex Services
- Communique
- Communique Design
- Communique Designs & Marketing
- Community Access
- Community Advantage
- Community Connection
- Community Creations
- Company X
- Compass Marketing Comms
- Comprehensive Resources
- Compuad Inc
- Computer Studio
- Concept Co
- Concept Farm
- Concept X
- Concrete Brand Imaging Group
- Connett Advertising
- Conrad Phillips & Vutech
- Contrast Communications
- Cool Gray Seven Corp
- Coolican Advertising Inc
- Cooper Graphics
- Cooper-Smith Advertising
- Cooperdirect Advertising
- Coordinated Graphics Inc
- Copper Leder Marketing Inc
- Corinthian Media Inc
- Corman Advertising Agency
- Corpcomm Group Inc
- Corporate Communications
- Corporate Connection
- Corporate Edge
- Corporate Impressions & Mktg
- Corporate Specialties
- Cosec International Inc
- Cosmic Muffin Group
- Cosmo Girl Advertising
- Cosnar Companies
- Cossette Post Communications
- Cote & D'Ambrosio
- Cottingham Advertising Inc
- Counsel Legal Advertising Svc
- Counts Media Inc
- Couples Clinic
- Cove Cooper Lewis Inc
- Covey & Koons LTD
- Cowden Communications
- Cox Group Inc
- Craig Business Group Inc
- Craig Communications
- Crane-Freeman Concepts
- Crawford Advertising Assoc LTD
- Cre8ive Radio Advertising
- Creaciones Advertising
- Creativa Advertising Agency
- Creative Abandon
- Creative Abilities
- Creative Access
- Creative Advertising
- Creative Annex Inc
- Creative Co Inc
- Creative Communication Corp
- Creative Concepts Ink
- Creative Cures
- Creative Dept
- Creative Design Advertising
- Creative Dimensions
- Creative Edge Advertising Inc
- Creative Effects
- Creative Marketing & Design
- Creative Marketing Plus
- Creative Matters LLC
- Creative Matters LLC
- Creative Media
- Creative Media Agency
- Creative Media Agency
- Creative Media Development Inc
- Creative Media Graphics Inc
- Creative Media Group Inc
- Creative Medical Comm Inc
- Creative Partnershipnorhtwest
- Creative Purpose
- Creative Services
- Creative Spot
- Creative Think Tank Agency Inc
- Creative Works Advertising Inc
- Creme Della Creme Copywright
- Cresci Flavian
- Crest Advertising Agency
- Creston & Assoc LTD
- Crews Quilty Thompson & Wylde
- CRI Assoc
- CRK Advtng Corp
- CRN Svc
- Croghan Solutions
- Cros Comm Inc
- Cross Current Solutions
- Crowl Montgomery & Clark Inc
- Crowley WEBB & Assoc
- Crown K Advertising
- Cruise Hotline
- CSI Intl
- Cuba Pennysaver
- Culotta Advertising Inc
- Cummings Group
- Cunning Communications
- Cunningham Baron LLC
- Curtis & Jeidy
- Custom Marketing Soulutions
- Cyclops Productions
- Cyrid Media Inc
- D & R Advertising
- D & S Advertising Inc
- D G Motion Creative Svc
- D J Graphics Co
- D K Photoimaging Inc
- D L Blair Inc
- D M Assoc Inc
- D M Barry & Assoc Inc
- D M Communications
- D P Ball Advertising
- D S Holbrook
- D S Holbrook
- D'Arcy & Partners L L C
- Da Nu Spot
- DAA
- Dahgeo Designs
- Dailey Sound Vector
- Dakota Communications Inc
- Dakota Communications Inc
- Dale Pon Advertising
- Daley Advertising
- Dalmath Associates Inc
- Dalton Group
- Dana Communications
- Daniel Hoh & Assoc
- Danielson & Assoc
- Dart Marketing
- Database Advertising
- Dave Margolis
- Dave Margolis
- Dave Pullman Assoc
- David Brent Marketing
- David Brunton Advertising
- David Group
- David Group Inc
- David K Burnap Web Develop
- David Paul Advertising
- David Sirieix Advertising
- David V Farrell Co
- Davidson & Maltz
- Davidson-Cantor
- Davis Elen Advertising
- Davison Advertising & Design
- Dawson-Messina
- Daystar Communications
- DCA Advertising Inc
- De Does Crosstie
- Dean Houston Inc
- Debow Communications LTD
- Deep Focus
- Deitch Media Management
- Dektas Horwitz Advertising Inc
- Del Agency & Assoc
- Delfico Advertising
- Delfino Marketing Comm Inc
- Delia's Corp
- Della Femina Rothschild Jeary
- Delphi Communications
- Delta Advertising Display
- Demaree Advertising
- Denhard & Stewart Inc
- Denise Desmond
- DENK
- Dennison Advertising
- Dennison Advertising
- Dente & Cristina Assoc Inc
- Dentsu USA Inc
- Design Be Inc
- Design Department
- Design Edge Inc
- Design For Marketing
- Design Forum
- Design Graphic Systems
- Design Group
- Design Plus
- Design Works
- Design Works Advertising Inc
- Designer's Media Group
- Designnet
- Designworks
- Desinger Imaging
- Destiny Advertising Co
- Detrow & Underwood
- Deutsch Inc
- Devito Fitterman Advertising
- Devito Verdi
- Dewynter's Advertising Inc
- DHX Advertising
- Di Giulio & Krypel Advertising
- Diamond & Zagorin Creative
- Diamond Enterprises
- Dianna Canter Promotions
- Dick Lopez Design
- Dick Moore & Assoc Inc
- Digiknow
- Digit Advertising & Design
- Digital Media Networks
- Digital Pulp Inc
- Digitas Inc
- Dimassimo Inc
- Dinamic Advertising Inc
- Dinoto Lee
- Dipippa Nussbrum Advertising
- Dircks Assoc Inc
- Direct Advantage
- Direct Graphics Studio
- Direct Results Marketing
- Directions Unlimited Inc
- Diseno International
- Display A Card Marketing
- Distro Dayton Co
- Diversa Advertising Inc
- Diversa Inc
- Division Street
- Division Street Design
- Dixon Schwabl Advertising Inc
- DJD-Golden Advertising Inc
- Dmd Advertising Inc
- Dodge Associates Inc
- Dodge Marketing & Advertising
- Dog Eat Dog Advertising Inc
- Doig Elliott Schur
- Don Klock & Assoc
- Don Lea Assoc Inc
- Don Wise & Co
- Don't Panic USA
- Donald Gumbrecht & Co
- Donde
- Donn Reeves Productions
- Donna Evans Ashby-Marketing
- Donnin Publishing
- Doremus
- Doremus Financial Printing
- Dotglu
