Open Web Technologies Ltd., which helps publishers engage readers and target them with ads, raised $170 million in a Series F round led by Canadian venture firm Georgian Partners, the company said.
The new round values OpenWeb at $1.5 billion, up from $1 billion in its previous round, according to the company.
It later expanded its services to include live-blogging, polling and data-management tools, as well as the placement of ads across publishers’ sites.
OpenWeb counts more than 1,000 publishers as clients, most of which are based in North America, Mr. Shoval said.
The company also focuses on content-moderation services to help protect both publishers and readers from harassment, hate speech and offensive content.