Start.io
Start.io is a mobile adtech platform for app monetisation and audience activation.
Analyst Perspective
start.io is a private US adtech company focused on mobile app and publisher monetisation, audience data products, and curated programmatic supply. Its platform combines an SDK for in-app ad delivery and signal collection with publisher monetisation tools, audience segmentation products, and curated marketplace offerings for advertisers and agencies. The company makes money through a hybrid model: taking a share of media spend and publisher monetisation flowing through its ad infrastructure, and licensing or activating mobile audience data for advertisers, agencies, and DSPs. Its paying customers are primarily mobile app developers, website publishers, advertisers, agencies, and other programmatic buyers rather than end consumers.
Analyst Signal Briefing
Updated: 24 Jul 2026Start.io continues to advance its mobile-centric omnichannel strategy under the leadership of CFO Shachar Pessis and CRO Ravit Ross. Building on its semantic modelling capabilities, the company recently launched ‘Performance Audiences’, a targeting layer derived from real advertising behaviour. This development, alongside updated Prebid.js integrations, enhances the activation of deterministic mobile signals across CTV and the open web. Furthermore, Start.io is leveraging these behavioural insights to target high-intent segments for major global events, including the 2026 World Cup, through multifaceted cross-channel campaigns.
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Key insights about Start.io
Category Differentiation
start.io is a mobile advertising technology and audience data company, not a consumer app or a general-purpose AI model provider. It is distinct from pure DSPs because it is anchored in publisher monetisation, mobile signals, and curated supply.
Start.io: About
The business operates a dual-sided adtech model. On the supply side, it provides SDK-based monetisation and yield optimisation for app developers and publishers, earning a take rate on advertising spend and inventory monetisation. On the demand side, it packages mobile-derived audience signals into syndicated segments and curated supply deals that advertisers, agencies, and DSPs can buy and activate across programmatic channels. Value is created by collecting large-scale mobile signals, converting them into monetisable data products, and linking those insights back into media transactions.
How Start.io Works & Monetises
Business model analysis and core revenue streams
start.io uses a hybrid monetisation strategy combining ad-tech transaction take rates and data monetisation. It earns revenue from publisher monetisation and media flow through its SDK, ad serving, and supply-side tools; from licensing or selling audience segments with transparent per-segment pricing; and from curated private marketplace deals that combine inventory with audience data. This is supplemented by optimisation-led monetisation products that help publishers increase yield, supporting a share-of-spend and data-activation revenue mix.
Revenue Channels
Products & Services in Categories
Verified structural categorizations from the graph
Recent Signals (Start.io)
Introducing Start.io Performance Audiences: A New Layer of Targeting Built on Real Advertising Behavior
Start.io announces a new targeting layer, Performance Audiences, built on real advertising behavior to enhance campaign effectiveness.
Read original sourceStart.io Data Reveals the Audiences Powering New York’s June Sports Surge
Start.io Data Reveals the Audiences Powering New York’s June Sports Surge
Read original sourcePrebid.js 11.22.0 Released
Prebid.js 11.22.0 was published on 2026-07-01 (commit eab36d8). The release includes core maintenance (linting and cleanup), dependency bumps, new features such as a bidResponseFilter for declaring disallowed bid values and the initial release of a 'Stack Up' RTD module, and multiple adapter/RTD/analytics updates (examples: Start.io, IAS, Adloox, Attekmi/Adnex). Source archives for the tag were published alongside the release.
Read original sourceStart.io: Frequently Asked Questions
What is start.io?
start.io is a mobile adtech company that provides app monetisation, audience data, and curated programmatic supply products for publishers, advertisers, agencies, and DSPs.
Who uses start.io?
Its users are mainly mobile app developers, website publishers, advertisers, agencies, media buyers, DSPs, and other data buyers seeking monetisation or audience activation.
How does start.io make money?
It makes money through media take rates on monetised inventory, curated supply transactions, and the sale or activation of mobile audience segments and related data products.
Company Facts
- Founded
- 2010
- Headquarters
- United States
- Core Segment
- AdTech Vendor
- Company Size
- 50–200
- Official Link
- start.io