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M3 Communications Group, Inc. - Public relations, advertising and marketing company in Bulgaria.
www.m3bg.com

M. Silver Associates Inc. - A public relations agency with 30-year history in travel and tourism, destination marketing, economic development, financial services and luxury goods and services.
www.msilver-pr.com/

Maccabee Group - A PR firm offering media relations, crisis communications, corporate communications and event marketing services.
www.maccabeegroup.com/

Magellan Public Relations Ltd. - Specialists in travel PR.
www.magellan-pr.com/

Mansfield/Barnhart, Inc. - Public relations, media relations and strategic communications for high technology in the Silicon Valley and southern California.
www.mbipr.com/

Mantrin - PR firm with capabilities in advertising, design, media relations, branding and event sponsorship. Includes company and management profile, services and contact information. Based in North India.
www.mantrin.com/

Marketability Advertising and Public Relations - Full service marketing communications firm.
marketabilityadvertising.com/

The Marketing Management Office - PR services for industry, logistics and materials handling.
www.marketingman.co.uk/

Marketing Works - Services include marketing plans, internet support, relationship enhancement, internal relations, corporate campaigns, and sales support.
www.marketing-works.net

Marshall Jennings PR Limited - MJPR is a UK based agency specializing in publicity for high tech companies. Services include public relations, advertising, marketing, photography, web site and literature design.
www.mjpr.com/

Martino Flynn - A full service public relations and advertising firm with in house interactive division.
www.martinoflynn.com/

Matas and Associates Public Relations - Professional public/media relations firm.
www.mataspr.com/

Mathis, Earnest and Vandeventer - A full service marketing and PR firm located in the midwest.
www.meandv.com/

Mayo Communications - A Los Angeles based, full-service, marketing communications firm specializing in media relations, high-tech, social issues campaigns, product launches, special promotions, employee communications and crisis communications.
www.mayocommunications.com/

McAuliffe Message Media - Providing strategies, communications plans and quality film/video production for political and corporate clients.
www.m3media.com/

McGallen & Bolden Associates - E-business, training, publicity and marketing consultancy based in Singapore.
mcgallen.net

McGrath Power - Silicon Valley based agency providing integrated communications programs in media relations, investor relations and marketing communications.
www.mcgrathpower.com

McNeill Lehman - From strategic thinking to creative direction and from project management to marketing products.
www.mcneilllehman.com/

MEA Public Relations - UK-based PR Consultancy specialising in corporate communications, media relations, crisis PR, public affairs and event management.
www.mea-pr.co.uk/

Media First PR - Venture development services, including PR.
www.mediafirst.net/

Media House - Scotland firm offering public relations, press relations and market intelligence consultancies.
www.mediahouse.co.uk/

Miller Public Relations - Marketing and advertising firm for small projects, product launching or campaign development.
www.millerpublicrelations.com/

Mindset Netwire - Alternative to submitting press releases to the media.
www.send2press.com/

Mintwood Media Collective - Worker-owned PR firm specializing in media strategy and outreach for progressive activist organizations and events.
www.mintwood.com

MM Design - Marketing communications firm specializing in the specific needs of small and emerging businesses.
www.mmdesignstudio.com/

Moore Consulting Group - Offers public relations, advertising and marketing services.
www.moore-pr.com/

Moosewood Marketing and Communication - Marketing, communications and PR. Based in New Hampshire.
www.moosewood.com/

Morgan and Myers - Specializing in business-to-business, agriculture, food and high technology communications.
www.morganmyers.com/

Morris Capital Markets Communications - Provides companies with investor relations services aimed at capital markets participants.
www.morriscapmarkets.com/

Morrissey and Company - Independent public relations and strategic communications consulting firm focused on bringing reputation, brand and positioning in line with your goals.
www.morrisseypr.com/

Mountainside Media - A full service communications firm for small enterprises, business associations, government and nonprofit entitites.
www.mountainsidemedia.com

MRB Public Relations - A high-tech public relations firm specializing in weblicity, channel building, and editorial opinion analysis.
www.mrb-pr.com/

Multiplanet Marketing - Full service marketing and public relations firm specializing in technology and service industries. Capabilities in research, analysis, strategy, plans, brochures, advertising, direct mail, and website content and usability. Includes management profile, services, clients, news and contact information. Based in Wayne, PA.
www.multiplanetmarketing.com/

MWW Group - United States. Services include media relations, consumer marketing, corporate communications, public affairs and investor relations.
www.mww.com/