What is the relationship between United Internet and Internet service provider in the context of the input sentence. Choose an answer from: 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