- Klafter Graphic Svc
- Klamath Communications
- Klamath Communications
- Kleidon & Assoc
- Kling Marketing & Advertising
- Knape Designs
- Knot
- KNOX Marketing
- Knudsen-Gardner & Howe Inc
- KODA Marketing Inc
- KODA Marketing Inc
- Koenig Advertising Public
- Koopman Ostbo
- Kopf Zimmermann Schultheis
- Koppelmann & Assoc
- Korey Kay & Partners
- Korey Kay & Partners
- Kovics & Kovics Inc
- Kovics & Kovics Inc
- KPC Christopher Thomas
- Krabill Marketing Group
- Kraftworks
- Kraftworks LTD
- Kraftworks LTD
- Kramer Co
- Kramer Co
- Kranzler Kingsley Advg Mktng
- Kranzler Kingsley Comm LTD
- Krienik Advertising Inc
- Krs Communications Inc
- Kucia & Assoc
- KUNO Creative Group
- Kuykendall Marketing Svc
- L & P Media
- L & P Media
- L 3 Advertising Inc
- L 3 Advertising Inc
- L 3 Creative
- L H Advertising Agency Inc
- L S Hospitality & Directory
- L Three Advertising Inc
- L Three Advertising Inc
- LA Angencia De Orci
- LA Angencia De Orci
- LA Micela Ny
- LA Micela Ny
- LA Voz Latina
- Laird & Partners
- Laird & Partners
- Lake & Assoc Advertising
- Lake & Assoc Advertising
- Lake Rd Inn LTD
- Lamar Advertising Co
- Lamar Outdoor Advertising
- Lana Kennedy Advertising Inc
- Landis Advertising Inc
- Landon Media Group
- Landon Media Group
- Lane & Co
- Lange Design Assoc
- Lannon Communications Inc
- Lanphier Associates Inc
- Laplaca Cohen Advertising
- Laplaca Cohen Advertising
- Larry Statland Art Svc
- Larry Statland Art Svc
- Latin Vox Communications
- Latin Vox Communications
- Latino Media Group
- Latorra Paul & Mc Cann Inc
- Lauerer Markin Group Inc
- Launey Hachmann & Harris Inc
- Launey Hachmann & Harris Inc
- Lawler Communications Co
- Lawrence & Brooks Inc
- Lawrence & Lawrence
- Lawrence Butner Advtng Inc
- Lawrence Butner Advtng Inc
- Lazarus Advertising Assoc
- LBC Advertising Inc
- LCM Advertising
- Leading Image
- League Of Advertising Agencies
- League Of Advertising Agencies
- Leapfrog Advertising
- Leapfrog Advertising
- Lee & Assoc Advertising
- Lee Brandywyne
- Legacy Communications Inc
- Leopold Ketel & Partners
- Les Overhead
- Levelwing Media
- Levelwing Media
- Levine Associates
- Lewis & Neale Inc
- Lewis & Neale Inc
- Lewis & Partners Advertising
- Lewis & Partners Advertising
- Lewis & Waechter Inc
- Lewis & Waechter Inc
- LGM Creative
- Liaison Marketing Comms
- Liebel & Co Advertising
- Lifebrands
- Lifebrands
- Lighthouse Marketing Inc
- Lima News Media & Marketing
- Lime Public Relations & Prmtns
- Lime Public Relations & Prmtns
- Limes Design
- Linda E Productions
- Linda Gluck Graphic Design
- Lindman Advertising
- Lindman Advertising
- Line Design Graphics
- Linemark Communications LTD
- Link 2 Communications
- Link Agency
- Linx Communications Corp
- Lion Advertising Assoc Inc
- Lipman
- Lipman
- Lipman & Assoc
- Liquid Media Solutions
- Lisker Gedney Stover Inc
- Little & King
- Little & King
- Little Heart Advertising
- Little Tornadoes
- Little Tornadoes
- Littlefield & Co
- Littlefield & Co
- Littlefields Marketing
- Livengood/Nowack
- Livewire Today's Families
- Livewire Today's Families
- Lloyd & Co
- Lloyd & Co
- Lloyd Maris Advertising
- LMC Communications
- LMC Communications
- Lobo & Petrocine
- Local Marketing Corp
- Locust Grove Enterprises
- Lodestone Communications LLC
- Logic Design
- Logos Creative Communications
- Lohre & Assoc Inc
- Lohre & Assoc Inc
- Lonestar Associates
- Long Island Advertising Club
- Long Island Yellow Pages
- Loose Cannon Creative
- Loose Federation
- Loose Federation
- Loring & Matthews Inc
- Loring & Matthews Inc
- Lorstar Advertising Inc
- Lounge Infusion Inc
- Lounge Lizard Graphic Inc
- Lowe & Partners Worldwide
- Lowe & Partners Worldwide
- Lowell Group
- LPNY LTD
- LPNY LTD
- LRG Marketing
- Lulu Strategy Inc
- Luna Printing Advertisement
- Lunden Communications Inc
- Lunt Sausville Burek
- Lunt Sausville Burek
- Lunt Sausville Burek Adv
- Luttner & Yachanin Advertising
- Lynn Ubell Advertising
- Lynn Ubell Advertising
- Lyon's Share Advertising Media
- Lyons Shopping Guide
- M & C Saatchi
- M & C Saatchi
- M 1 Management Inc
- M 1 Management Inc
- M 2 Design Group
- M 2 Design Group
- M 2 Worldwide Inc
- M Booth & Assoc Inc
- M Booth & Assoc Inc
- M E Stern Design & Comms
- M G & G Advertising Inc
- M G & G Advertising Inc
- M K Advertising
- M K Advertising
- M L Rogers LLC
- M L Rogers LLC
- M One Worldwide
- M One Worldwide
- M Patricof Creative Group Inc
- M Patricof Creative Group Inc
- M Reiss Advertising
- Mac Troy Communications
- Maddox Marketing Group Inc
- Madison Advertising
- Madison Advertising
- Madison Advertising Agency
- Madison Group
- Madison Media Corp
- Madison Media Corp
- Maentz Agency
- Magnagraphics Inc
- Magneto Brand Advertising
- Magneto Partnership LLC
- Maharry's Inc
- Mail South
- Main Street LTD
- Major Market Network
- Major Market Network
- Majority Strategies Inc
- Maley Inc
- Maley Inc
- Mall Expos Inc
- Malone Advertising Inc
- Malonezeris
- Mana Vision
- Mandala Agency
- Mandala Agency
- Manhattan Marketing Ensemble
- Manhattan Marketing Ensemble
- Manhattan Media Svc
- Manhattan Media Svc
- Manic Media & Marketing
- Manoff International Inc
- Manoff International Inc
- Marc Rains Photography
- Marc USA
- Marc USA
- Marcon Group LTD
- Marcus Thomas LLC
- Marcy Design Group Inc
- Maresco & Partners Advertising
- Margeotes Interactive
- Margeotes Interactive
- Marglo Advertising
- Margrill & Assoc Inc
- Margrill & Assoc Inc
- Marianne Dube Assoc Inc
- Marianne Dube Assoc Inc
- Marine Development & Research
- Marinelli Communications Inc
- Marinelli Communications Inc
- Mark Miller Assoc Advertising
- Mark Sternhell Advertising Inc
- Mark V Adverising
- Markell Co
- Market Pros Inc
- Marketing & Creative Solutions
- Marketing & Management
- Marketing & Media Svc
- Marketing By Mail Inc
- Marketing Creations Inc
- Marketing Department
- Marketing Directions
- Marketing Imagineers
- Marketing Initiatives
- Marketing Initiatives
- Marketing Ink
- Marketing Resource Ctr
- Marketing Services Inc
- Marketing Three
- Marketing Thru Graphics
- Marketing Thru Graphics
- Marketing Visions Inc
- Marketplace Advertising Group
- Marketworks Inc
- Marketworks Inc
- Markham Media
- Markham Media
- Marshall Jordan & Assoc
- Marshall Jordan & Assoc
- Marshfield Group
- Marston WEBB Intl
- Marston WEBB Intl
- Martin & Assoc
- Martin Agency Inc
- Martin Agency Inc
- Martin Design
- Martin Linskey
- Martin Thomas Inc
- Martino Flynn
- Martz Productions
- Mary R Tahan Advertising
- Marysville Media Sales
- Masius New York
- Masius New York
- Mason & Moon Advertising Inc
- Massivemedia
- Massivemedia
- Mastandrea Studios LTD
- Masto Public Relations
- Matches Advertising
- Mathew's Marketing
- Matlock Advertising
