Agency Echelon
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Moving media planning and buying from an agency to the advertiser's own staff, in whole or in part. In-housing grew through the late 2010s as platforms became self-service and transparency concerns mounted, and often settles into a hybrid: strategy and search in-house, programmatic and specialized channels with partners. The ANA reports a majority of large advertisers now have some in-house capability.

Cite this entry: Agency Echelon. "In-Housing." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/in-housing/

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Reviewed September 23, 2026. Reference text is licensed CC BY 4.0. Privacy