Utilize the input text as a context reference, choose the right relationship between United Internet and Internet service provider from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

The top riser on the FTSEurofirst 300 was United Internet AG , which climbed 7.2 percent after the German Internet service provider said it may float its business offering web-hosting and other online services to corporate customers.

Answer: industry