Dgm
- Provides search engine optimisation, marketing and banner advertising. Based in London, UK.
- http://www.dgm-uk.com/

Design 4 Dot Com, Inc.
- Offers internet marketing campaigns to improve search engine placements.
- http://www.design4dot.com/

Dakota SEO and Design
- Offers web site design, search engine optimization and consulting. Based in North Dakota.
- http://www.rtfi.us/Concepts/

Dreamszsop
- Provides web site optimization, monitoring and link submissions.
- http://www.dreamszsop.com/

Dots and Coms
- Offers search engine optimisation and Google Adwords campaign management service.
- http://www.dotscoms.co.uk/

Digital Road Consulting
- Offers search engine optimization for small to medium sized businesses. Based in White River Junction, Vermont.
- http://www.digitalroadconsulting.com/

DR webdesign and optimization
- Belgium based company provides search engine friendly website creation, website optimization and promotion.
- http://www.dr-webdesign.be/index_en.html

Digital Odyssey IT
- Search engine optimization, positioning, directory placement and submission services. Seattle WA
- http://www.digitalodysseyit.com/

Deep Channel Solutions Pvt Ltd
- Consulting firm offering web design, development, marketing and programming.
- http://www.deepchannel.biz/

Datadial Ltd
- Search engine registration and website ranking services. London, United Kingdom.
- http://www.spiderspoof.com/

Dnpromoter
- Offers web site marketing and promotion tools and services.
- http://www.dnpromoter.com/

Direct
- Search engine optimisation services with monthly maintenance contracts and site paid listings.
- http://www.directsubmit.co.uk/

Direct Traffic Ltd
- Online marketing services to improve ranking and targeted traffic.
- http://www.directtraffic.org/

Daup
- Offers positioning and marketing services. Located in Borgosesia, Italy.
- http://www.daup.com/

Donpatterson-designs.com
- Optimizing and designing web sites for traffic, conversions and profitability.
- http://www.donpatterson-designs.com/

DWP
- Offers search engine placement through website optimization, link popularity and position reporting.
- http://www.dakovwebsitepromotion.com/

Datalink Service
- Offers internet promotion, website marketing and offshore SEO services. Based in Kolkata, India.
- http://www.datalinkservice.com/

DigitalWork
- Offers submission service and banner ad placement. Chicago, Illinois, United States.
- http://www.digitalwork.com/

The Driver Group
- Specializing in web site marketing and promotion services. Located in Chester, New Jersey.
- http://www.drivergroupusa.com/

DM Consulting
- Canadian firm offers website design and optimizing services.
- http://www.drivetraffic.ca/

Disc
- Offers website design, optimization and other forms of promotion.
- http://www.2disc.com/

Domain Diffusion
- Offers search engine positioning services and internet marketing.
- http://www.domaindiffusion.com/

Dynamic Promotions
- UK firm specializing in submission to all the major engines and directories.
- http://www.dynamicpromotions.co.uk/

Deadlock Design
- Creates meta tags and titles for designated pages, promotes them on search engines. Monthly maintenance and upkeep.
- http://www.deadlock.com/

DiTucci
- Professional optimization and website promotion, offers a free search engine report.
- http://www.ditucci.com/

DreamSubmit
- Offers site submission services.
- http://www.dreamsubmit.net/

Direct Hits
- Website promotion and ranking services, customized keyword, keyphrase development, search engine submissions and positioning.
- http://www.direct-hits.net/

DSR1.com
- Register and submit your website to over 400 search engines and directories.
- http://www.dsr1.com/