The online scrapbook does not currently display any revenue-generating advertising on its website, but retailers and large brands such as The Gap, Patagonia and Dell are increasingly using the site to promote their products.
Providing companies with data about usage is a "pretty clear step in the direction" of monetising Pinterest, said Greg Sterling, senior analyst with Opus Research, a San Francisco-based market research firm.
"They couldn't really start charging people without some way of measuring the efficacy of the spend," he said.
Pinterest is "building foundations to monetise" its service this year, its chief executive Ben Silbermann told The Wall Street Journal last month.
In February, the company raised $200 million in funding from venture capital firms that include Andreessen Horowitz and Bessemer Venture Partners. The funding deal valued the three-year-old company at $2.5 billion.
The new tool, which will be available free to businesses that use Pinterest on Tuesday, will also provide information about user activity on Pinterest as it relates to a particular company, such as the frequency with which people are clicking on a company's online photos.
Pinterest, which allows users to create online bulletin boards of images and photos based on various themes such as travel, decorating, or sports, was the 38th most visited website by US Internet users in January, with roughly 30 million unique visitors according to online measurement firm comScore.
"The goal is really to help websites understand what content is resonating with people on Pinterest," Cat Lee, a product manager at Pinterest told Reuters in an interview.
However, the online scrapbook has not disclosed how many companies have set up official business accounts on its service since it began offering the feature in November.
Copyright @ Thomson Reuters 2013