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Harbour Light Productions
Multimedia design and programming. Solutions for web, multimedia and print design needs.
http://www.harbourlight.com/

Hard n Soft Technologies
CD authoring, web design, 2D/3D animation, and print design. Based in Chennai, India.
http://www.hnsonline.com/

Heritage Multimedia
Specializing in heritage, leisure and culture projects.
http://www.heritage-multimedia.co.uk/

High Ground Digital, LLC
Specializing in interactive multimedia, corporate presentations, kiosks, and web site production.
http://www.hgdigital.com/

Hildebrand Interactive
Providing Internet, TV and digital media solutions.
http://www.hildebrandinteractive.com/

HMC Interactive
Develop interactive multimedia for a wide range of industries from education to entertainment. Located in Plymouth, England, United Kingdom.
http://www.hmcinteractive.co.uk/

Horizon Productions
Services include video production, CD/DVD authoring, web design, print design, and event staging. Located in Cincinnati, Ohio, United States.
http://www.horizon-productions.com/

Horizons Companies
Providers of website design, multimedia authoring and video, film and sound design.
http://www.horizonscompanies.com/

Houdini
Creators of websites, CDs, DVDs, broadband productions.
http://www.houdini.se/

Hunt and Gather
Web and CD-ROM development agency focusing on the computer medium.
http://www.huntandgather.com/

HyperActive Multimedia
Services include 2D/3D animation, hosting, illustration, interactive authoring, presentation, print design, programming, videography, and web design. Located in Boston, Massachusetts, United States.
http://www.hyperactive.to/