So far, the service — called Forget.me — is free. Mr. Girin expects to charge customers eventually, however, through a so-called freemium model, in which people get the basic service free and then pay for premium add-ons, like custom-made letters or requests that can be submitted across multiple search engines.

“We saw an opportunity,” said Mr. Girin, who added that his company had so far submitted around 2,000 requests related to more than 7,600 online links. Roughly half of the requests had been made on behalf of people in Britain, France and Germany. The ruling applies to the 28-nation European Union, plus Norway, Iceland, Switzerland and Liechtenstein.

“When Google put its form online,” he said, “we saw there could be a lack of understanding for some people about how to submit requests.”

The land grab from marketing agencies and other start-ups has not been universally welcomed.

Iain Wilson, a data protection partner at the law firm Brett Wilson in London, said many of these companies did not understand the legal complexities of the European court’s ruling. They include decisions on whether the potential case was linked to someone’s online privacy and how best to submit requests to search engines so they removed the harmful links.

“A lot of reputation management companies are jumping on the bandwagon,” said Mr. Wilson, who had sent letters to Google both before and after the court’s decision, asking for information to be taken down from search results. “Anyone who comes to us with a privacy problem, this legal decision is something new in our toolbox.”