Castoola

Castoola operates a B2B adtech model supplying software and supporting services to broadcasters, OTT operators, telecom operators and TV publishers. The platform sits within the monetisation stack for linear and streaming video, enabling targeted ad delivery, dynamic ad insertion, campaign execution and measurement. It creates value by helping media owners convert traditional TV inventory into more addressable, measurable and higher-yield advertising supply without requiring a full replacement of legacy broadcast infrastructure.

Castoola is a Slovenian B2B adtech company focused on addressable TV and hybrid broadcast-broadband advertising infrastructure. Its products enable broadcasters, OTT platforms, telecom operators and other media companies to insert, manage, measure and monetise targeted advertising across linear TV and connected TV environments, particularly through HbbTV-based implementations. Its offering combines dynamic ad insertion, ad serving, campaign management, analytics and managed ad operations.

The company makes money through software licensing and managed services sold to media owners and operators rather than end consumers. Its value proposition is helping TV inventory owners increase fill, CPMs and campaign measurability while integrating with existing broadcast and OTT systems. Available evidence also indicates that Castoola was acquired by Beenius, with subsequent asset-level changes involving Beenius, so Castoola should be understood as a specialised TV advertising technology brand with somewhat unclear present-day ownership context.