By Mark Maurer 

Media-measurement firm Comscore Inc. tapped an industry executive as its new finance chief as the company works to boost revenue and enhance its existing tools for quantifying the audience of video-streaming content.

The Reston, Va.-based company, which provides tools for evaluating online and local media as well as film viewership, on Monday said it named Jon Carpenter as chief financial officer, effective Nov. 29. Mr. Carpenter is set to succeed Greg Fink, who left in August to pursue other interests after about four years in the role, the firm said.

Mr. Carpenter has served as CFO at Publishers Clearing House, a privately held, Jericho, N.Y.-based marketing company and a customer of Comscore, since 2016. Before that, he held senior finance roles at rival Nielsen Holdings PLC, Sears Holdings Corp. and NBCUniversal Media LLC. Mr. Carpenter plans to stay at Publishers Clearing House for the next few weeks to assist with the transition, a Comscore spokesman said. Publishers Clearing House hasn't announced a successor yet.

His appointment comes as Comscore and Nielsen are facing increasing pressure from marketing and media clients to offer new measurement capabilities and keep up with rapidly changing media-consumption habits.

Comscore earlier this year said it expanded its data-licensing partnership with Dish Media to include video-on-demand service provider Sling TV, allowing the company to expand its measurement offerings. Nielsen, meanwhile, next year plans to launch a new product that will combine ratings from both streaming and live TV.

(MORE TO COME)

Write to Mark Maurer at mark.maurer@wsj.com