1 IT Source
- Offers Windows and Linux hosting packages along with ASP(Application Service Provider) services.
- http://www.1itsource.com/

123 Hosts
- Hosts virtual, dedicated and colocated servers.
- http://www.123hosts.com/

1024host.com
- Providing web hosting to small and medium sized businesses. All hosting packages include Cpanel Control Panel, web statistics, three web mail programs, and blog.
- http://www.1024host.com/

100 Domain Hosting
- Offers reseller program. Based in Illinois, United States.
- http://www.100domainhosting.com/

1st Choice International.
- Offers UNIX and Windows shared hosting, dedicated servers and co-location. Located in Missouri, United States.
- http://www.1stchoiceinternational.com/

1T3 Hosting
- Offers UNIX shared hosting, reseller program, domain registration and semi-dedicated servers.
- http://www.1t3.com/

1st Class Hosts
- Offers Linux and Windows shared hosting. Based in the United Kingdom.
- http://www.1stclasshosts.com/

1Gig Host
- Offers Linux shared hosting with PHP, MySQL and Perl. Located in Indiana, United States.
- http://www.1gighost.com/

101 Site Hosting
- Offers Linux shared hosting, reseller packages, domain registration and dedicated servers.
- http://www.101sitehosting.com/

1st Host Web
- Offers shared hosting and domain registration. Based in Texas, United States.
- http://www.1sthostweb.com/

123 Hosting.com
- Offers shared hosting and domain registration. Located in Canada.
- http://www.123hosting.ca/

1 2 3 Site Hosting
- Offers Windows shared hosting with site builder. Based in California, United States.
- http://www.123-site-hosting.com/

1st-Amendment
- Offers shared hosting and reseller packages. Based in Illinois, United States.
- http://www.1st-amendment.net/

100 Megs Dedicated
- Offers dedicated servers. Based in British Columbia, Canada.
- http://www.100megsdedicated.com/

1 Hour Hosting
- Offers shared hosting and domain registration. Located in Los Angeles, United States.
- http://www.1hourhosting.com/

1st Easy
- Offers shared hosting, reseller packages, dedicated servers and co-location. Based in the United Kingdom.
- http://www.1steasy.com/

1st Choice Web
- Provides web site hosting and domain name registration services.
- http://www.1stchoiceweb.net

1st Choice Web Site Hosting
- Provides web site hosting and domain registration service with support for Miva, ASP, and log file access.
- http://www.1stchoicehost.com

1 Host Plan
- Offers shared hosting and domain registration. Supports MySQL, PHP and Java.
- http://www.1hostplan.com/

1st WebSite Hosting
- Offers shared hosting and domain registration. Supports PHP and MySQL.
- http://www.1stwebsitehost.com/

1uhost
- Free domain names, web control panel, unlimited hosting with Data Centers in USA and the UK.
- http://www.1uhost.com/

123EasyHost
- Offers shared hosting and domain registration. Located in California, United States.
- http://www.123easyhost.com/

1stcom Web hosting
- Affordable hosting solutions, front page, virtual servers. Ecommerce solutions and web stores.
- http://www.1stcom.com

1st Euro
- Offers Linux shared hosting, domain registration and reseller program. Supports Perl, PHP and MySQL.
- http://www.1steuro.net/

1337.as Hosting
- Offers shared hosting and domain registration. Supports MySQL and PHP. Located in New South Wales, Australia.
- http://www.1337.as/

1stLinuxHost.com
- Canadian Linux hosting firm, offering PHP, ASP, MySQL, perl, and SSI support.
- http://www.1stlinuxhost.com

100 Megs Web Hosting
- Offers JavaServer Pages, FrontPage, shopping cart, and PHP support.
- http://www.100megswebhosting.com

#1 Personal Web Servers
- Offers shared hosting and dedicated servers. Supports PHP, MySQL and Perl.
- http://www.1-personal-web-servers.com/

123-Web-Host
- General hosting with site promotional services.
- http://www.123-web-host.com