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Cadelina, Jade
Search engine marketing and optimization, landing pages, microsites, and wordpress installation. Sydney, Australia
http://jade.cadelina.com

Canadian Search Engine Marketing
Provides campaign management and consulting services. Based in Scarborough, Ontario, Canada.
http://www.canadian-search-engine-marketing.com/

Canary Search Marketing
Offers SEO, marketing, and content development from the Canary Islands.
http://www.canary-search-optimisation.com

Captain Travel
Offers pay-per-click marketing as well as meta tag optimization and submission services for the travel industry. Based in Victoria, British Columbia, Canada.
http://www.captaintravel.net/

Capture Commerce
Specializes in website marketing, search engine optimization and keyword selection. Located in Snellville, Georgia, United States.
http://www.capturecommerce.com/

Carolina Search Engine Optimization
Optimization services from a South Carolina, USA company.
http://www.carolina-seo.com

Casseva Limited
Offers PPC, optimisation and marketing, copy writing, and consulting services from the UK.
http://www.casseva.com/

CatDynamics
Weblog development, keyword analysis, and optimisation consulting.
http://www.catdynamics.com

Cattledriver.com
Offers search engine submissions, pay for hits and email marketing programs.
http://www.cattledriver.com/

CCS Search Marketing
Search engine optimization, page ranking and site positioning are the tools that increase a websites search engine hit traffic.
http://www.searchengineoptimizationnc.com/

Cheasyy Solution
Outsource company specialist in search engine marketing, web site design and lead generation.
http://www.cheasyy.com/

Chilli Zone Ltd
UK-based firm offers several marketing techniques including search engine optimisation, submittal and position monitoring.
http://www.chillizone.com/

Chinese Search Engine
Offers optimizing tips and submission services for the Chinese market. Located in Yunnan, Peoples Republic of China.
http://www.chinese-search-engine.com/

Choice Positions
UK-based firm offers site analysis, keyword research and recommendations, homepage optimisation and submission plans.
http://www.choiceposition.com/

Chris Phillips
Provides search engine optimization and marketing services for small businesses.
http://www.chrisphillips.com/

Citynet Web
Specializes in website marketing and search engine optimization services.
http://www.citynetweb.com/

ClaudiaDot Search Engine Marketing
Offers website optimizing and submission services. Located in Rio Rancho, New Mexico, United States.
http://www.claudiadot.com/

Clear Light Digital
Search engine marketing and optimisation, web development, and online advertising. Located in Victoria, Australia.
http://www.clearlightdigital.com/

Clearpath SEO
Search engine marketing and optmization, link building, consulting, and site audits. Based in Edmonton, Alberta, Canada
http://www.clearpathseo.com

ClearSaleing, Inc.
Optimization, PPC, and e-marketing services. Located in Columbus, Ohio.
http://www.clearsaleing.com

Clever Marketing Consultants S.A.
Search engine optimization and internet marketing firm based in Spain.
http://www.clevermarketingspain.com/

Click Response
PPC, optimization, and consulting and training services. Located in Englewood Cliffs, New Jersey, USA.
http://www.clickresponse.net

Clicks To My Site
Search engine optimization, PPC management, content writing, and directory submission services for small businesses. Located in Pittsburgh, Pennsylvania, USA.
http://www.clickstomysite.com

Clickthrough Marketing
Provide SEO and pay per click advertising services. Located in Lichfield, West Midlands, UK.
http://www.clickthrough-marketing.com/

The Client Factory
Website promotion with sponsored links and pay per click advertising and optimization covering the major search engines.
http://www.theclientfactory.co.uk

Clientside Search Engine Marketing, LLC
Offers optimization and management, e-marketing, site analysis, strategic planning, and employee training for medium to large-sized businesses. Located in Oakland, California.
http://www.clientsidesem.com

ClikTru.com
Optimization and PPC services.
http://www.cliktru.com

Clinks Web Service
Offer web design, SEO services, pay-per-click and AdWords management. Includes portfolio and testimonials.
http://www.clinkswebservice.com/

Clixo, LLC
Site analysis, SEO and marketing, and search advertising services from a Colorado-based company.
http://www.clixosearch.com

Clixplus.com
Provides search engine position and maintenance services.
http://www.clixplus.com/

CM SEO & Consulting, LLC
Search engine optimizer and consulting services. Based in Torrance, California, United States.
http://www.cmseo.com/

Coastal Sites
Offers positioning services and pay per click management. Pagosa Springs, Colorado, United States.
http://www.coastalsites.com/

Cogentis Pty Ltd
Offers search engine marketing services including keyword research, website optimisation, pay per click management and traffic analysis. Located in New South Wales, Australia.
http://www.cogentis.com.au/

Cognisant Associates
Business consulting, hosting, PPC, optimisation, and market entry services.
http://www.cognisantassociates.co.uk

ComCorp, Inc.
Multilingual optimization, e-marketing, PPC, and affiliate marketing.
http://www.comcorp.com

Commerce360 Inc
Search engine optimization, marketing, and management services. Based in Plymouth Meeting, Pennsylvania, USA.
http://www.commerce360.com/

Com.Motion Consulting Ltd
An Internet marketing company based in Edinburgh, Scotland specialising in optimisation, PPC and, online advertising.
http://www.com-motionuk.com

Compelling Marketing Communications, LLC
E-mail marketing, graphic and web design, search engine optimization, and online advertising services.
http://www.yourcmc.net/

Complete Online Marketing Solutions LLC
A full service consulting, online marketing and technology solutions company.
http://www.comoms.com

Computer Construction Company
Offers search engine optimizing and ranking services. Based in Duluth, Georgia, USA.
http://www.computerconstructionco.com/

Comwerks
A Singapore based agency providing web design, multimedia, e-marketing and search engine optimization services.
http://www.comwerks.com/

ConnectedMarkets
Provides search engine optimization, pay-per-click marketing and link building services. Located in Los Angeles, California, United States.
http://www.connectedmarkets.com/

Convonix, Inc.
Offers web marketing services including search engine optimization, PPC, web analytics and search engine marketing services.
http://www.convonix.com/

Convurgency.com
Toronto-based company offering search engine and e-mail marketing, optimization, and French-English translation services.
http://www.convurgency.com

Coppervine BV
PPC management, optimisation, competitor assessment, and marketing services. Based in Amsterdam, the Netherlands.
http://www.coppervine.com

Copy Brighter Marketing
SEO, copywriting, and social media marketing by Brett A. Borders. Based in Boulder, Colorado, USA.
http://www.copybrighter.com

CrackMarketing.com
Provides optimization, branding, marketing and design. Based in Richmond, British Columbia, Canada.
http://www.crackmarketing.com

Craft Site Medic
Offers advertising and website promotion for sites in the arts and crafts industry.
http://www.artcraftmarketing.com/

Craig McLaughlan
Website positioning, design, and SEO in English and Spanish, based in Barcelona, Spain.
http://www.craigmclaughlan.com

CreativConcepts
Pennsylvania search engine optimization company provides web design and pay-per-click campaign management services.
http://www.creativconcepts.com/

Creative Seo
Search engine optimisation, PPC, and Internet marketing from a company located in Devon,UK.
http://www.creative-seo.co.uk

CreativeBox
Search engine optimisation, project management, and copy writing services from a UK-based company.
http://www.creativebox.ltd.uk/

Cre8pc
Provides website optimizing, marketing and quality assurance testing.
http://www.cre8pc.com/

Cresoft Corporation
A New York City company offering web site design, search engine optimization, PPC, and multimedia management.
http://www.cresoft.com

Cue Blocks Technologies Pvt Ltd
An India-based company offering link building, marketing plans, optimisation, and PPC services.
http://www.cueblocks.com

Customer Magnetism
Provides search engine positioning and pay-per-click management services. Located in Virginia Beach, Virginia, United States.
http://www.customermagnetism.com

CustomPPCmanagement.com
Provides campaign management for Google Adwords and Yahoo search marketing campaigns and search engine optimization services.
http://www.customppcmanagement.com/

Cybermark International
An Internet marketing company specializing in optimization, PPC, and hosting and domain registration services.
http://www.cybermarkintl.com

Cybermedia Marketing
SEO, consulting, and web design services. Located in Raleigh, North Carolina.
http://www.cybermediamarketing.com/