Evertune

Overview

Evertune is an AI visibility platform and generative engine optimization solution for marketing teams to measure brand visibility in AI search[1]. Founded in 2024 by Brian Stempeck (CEO), Ed Chater (CPO), and Poul Costinsky (CSO)[2], the company is headquartered at 35 East 21st Street in New York, with additional offices in Seattle and Denver[3]. Evertune raised $20 million from adtech and martech investors[4]. The company serves customers including Halo Collar, Canada Goose, HexClad, Roku, and WPP[5]. Evertune samples each prompt 100 times across every AI model and benchmarks brands against competitors across 11 models, serving over 700 advertisers and agencies through EverPanel, a proprietary panel of over 150 million user prompts[6]. In 2026, Evertune announced AI retargeting partnerships with Index Exchange and The Trade Desk, and expanded its Partner Connect product to include B2B SaaS partnerships with PartnerStack[7].

Evertune was founded in 2024 by Brian Stempeck (CEO), Ed Chater (CPO) and Poul Costinsky (CSO), who were early team members at The Trade Desk. [2]

Evertune's company overview listed its headquarters at 35 East 21st Street, 7E, New York, NY, with additional offices in Seattle and Denver. [3]

Evertune AI lists its address as 1300 E 223rd St, New York, New York, 10466. [8]

Funding history

Evertune stated it had raised $20 million from leading adtech and martech investors. [4]

Customers

Evertune named Halo Collar, Canada Goose, HexClad, Roku and WPP among its customers. [5]

Growth & traction

Evertune said it samples each prompt 100 times across every AI model, benchmarks brands against every competitor in their category across 11 models, and serves over 700 advertisers and agencies, drawing on EverPanel, a proprietary panel of over 150 million user prompts. [6]

Partnerships

Evertune announced AI retargeting through partnerships with Index Exchange and The Trade Desk on February 11, 2026, and expanded its Partner Connect product to B2B SaaS partnerships with PartnerStack on January 29, 2026. [7]