HostGator is a Houston-based web hosting company founded in 2002. Since 2008 HostGator is dedicated to being a green or eco-friendly hosting company.
http://www.hostgator.com/

SiteWorks is a privately owned company founded in 1996 and offering 100% uptime solutions for hosting.
http://www.siteworks.com/

UK-based affordable web hosting, offers a 30day money back guarantee, dedicated servers also available.
http://www.pixelinternet.co.uk/

A privately held hosting company, offering hosting services since 1996. Monthly or annual payments + 30 day money back guarantee.
http://www.olm.com/

A privately held hosting company, based in Scranton, Pennsylvania (USA) and Manchester (UK)with a high number of hosting packages for any needs. Very compatible pricing structure!
http://www.burst.net/