The players

The company behind Ask.com, for years a large search-to-search arbitrage operator, closed by IAC on 1 May 2026.

Private ad company offering search feeds and tools that turn display and native traffic into search clicks.

Barry Diller's holding company, owner of Ask.com until it closed its search business in 2026; now trades as PPLI.

Small listed US ad-tech firm that earns mostly from Yahoo and Google ads shown on its own and partner sites.

Israeli company whose content sites and search-feed pages are a common sight in social-to-search advertising.

The best-known listed search arbitrage company: buys traffic itself and runs a partner network on Google ads.

Dutch group that runs dozens of small search-engine brands and says it is one of the largest Google search partners.