Keynes

Overview

Keynes sells connected TV (CTV) advertising services and a software platform for planning, buying and measuring CTV campaigns. It runs CTV media buying for medium and enterprise brands. It reports results using multi-source attribution, so brands can see CTV's effect across their paid media.

For Shopify brands

• ●Keynes plans, buys, runs and manages the brand's connected TV campaigns from start to finish.
• ●Keynes handles data integration, modeling and campaign build using the brand's existing performance data.
• ●Multi-source attribution shows the effect of CTV alongside the brand's other paid media in one place.

How it works

The brand gives Keynes access to its existing performance data. Keynes handles the integration, modeling and campaign build, then buys and manages the CTV media. A first call is a thirty-minute session with a live Kortex walkthrough on the brand's own data.

Built for

Medium and enterprise brands running connected TV advertising, including retail and direct-to-consumer brands with in-house teams.

Products

• ●CTV media buying and execution Planning, buying, execution and management of campaigns across Connected TV.
• ●Kortex Measurement and optimization layer that sits under whoever buys media, agency or in-house.
• ●KAI AI tool that reads a brand's connected data and recommends what to do next.

Buyer notes

• Keynes needs access to the brand's existing performance data to start.
• Kortex can work alongside an existing agency.
• A practical minimum spend applies so the data is statistically useful; the amount is not published.
• Demo requests get a reply within one business day.

From Keynes's own site and Shopify App Store listings, as of 2026-11-02.