Armadillo Online Marketing: Specializes in opt-in email lists, and related services.
Charlwood eMarketing: Online direct response agency specializing in customer relationship management(CRM) solutions, permission email marketing, online contests, email newsletters and promotions.
Digital Cement: Helps companies design, write, and evaluate the effectiveness of E-mail and web site content.
Direct Qlick: Opt-in email list management, brokerage, broadcast, and tracking services.
eMail Lists: An online email marketing solution that enables businesses to build, send and track permission-based opt-in email marketing campaigns.
Email Maestro: Ethical permission based opt-in email marketing company, with over 18 million opt-in subscribers.
EmailFactory: Viral and relationship marketing services for businesses and organizations.
EmailPro: United Kingdom based company offering full service opt-in email marketing services and web site promotions.
I-Behavior, Inc.: A cooperative, transactional history database containing consumer buying behavior profiles contributed by member catalog, publishing, and e-tailer companies.
iEntry: Free, professionally written newsletters on a variety of topics that go out to millions of opt-in subscribers per month.
MailCreations: Specializes in targeted opt-in email lists, co-registration, and email append marketing.
Mailtrack: A UK based e-mail marketing company, specializing in opt-in email lists and CRM email delivery software.
market1der: Offers design and implementation of opt-in email marketing promotions as well as cd-rom business cards and HTML designed letterheads for email.
MeMail: Free email publications delivered directly to your email inbox. News, entertainment, health and fitness, business and financial, and lifestyle.
MetaResponse Group: Offers permission based e-mail and direct marketing services including list brokerage and management, e-mail and direct mail lists.
North American Mailing Associates: Provides opt-in email marketing lists and email addresses appending to postal addresses. Fresh sources of B2B and B2C opt-in email lists.
Opt-Email: Offers targeted Opt-In based Email Marketing
Opt-Influence: Supplies opt-in email newsletter services
Permission Direct: Provides opt-in email direct marketing services.
Promo King: Permission based eclub marketing programs for retail stores and restaurants.
Satori Software: Home of Bulk Mailer Plus and MailRoom ToolKit, an address management and postal mailing solution that is compliant with the USPS, Royal Mail and Canada Post.
TKL Interactive: Provides opt-in email lists, copywriting, and campaign management services directly to marketing and advertising professionals and agencies.
Wall Street List: A double opt-in email marketing, list management, brokerage, and delivery service provider.
YesMail: Offers targeted opt-in direct email marketing through campaign building, tracking and list management services.