O3 World is a Philadelphia web design company that specializes in website design, web development, branding, internet marketing, and online strategy. O3 World is extremely passionate about their work, which has helped them to grow from one of the premier companies for web development in Philadelphia to a company with national and international brand presence!.. 

http://www.o3world.com

Emarketers are based in Slough and are committed to getting great results for their clients. They offer website development services for UK business clients by building a website that will generate inquiries and bring targeted visitors to client's website... 

http://www.emarketers.co.uk/development/web-developers.php

A creative/technical internet marketing firm combining brand strategy and advanced programming to deliver professional web site design and custom made web software with an emphasis on search engine friendly web development... 

http://www.thoughtlab.com