Stack I/O is an advertising and marketing technology consultancy, designed to support brands through data and technology driven acceleration. Our purpose is to empower brands to identify, evaluate and deploy the technology and capabilities they need to deliver sustainable value. At whichever stage of their evolution, we deliver to brands configurable solutions focussed on delivering value through change, reducing complexity and risk, creating greater utility and control, and ensuring end-to-end transparency.
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The Stack I/O annual revenue was $406000 in 2026.
Stack I/O is based in London, Essex.
The NAICS codes for Stack I/O are [541810, 5418, 54, 541, 54181].
The SIC codes for Stack I/O are [73, 731].