MediaSense

Based in London, this independent marketing advisory works with brands rather than running campaigns directly, positioning itself as a partner to marketing organizations seeking clarity on how their advertising, media, and agency investments perform. The firm describes handling a significant share of creative, media and integrated agency reviews for large, well-known companies, working exclusively on the client side rather than for agencies. Its stated scope spans structuring marketing organizations, selecting partners and platforms, and improving governance and measurement across a client's marketing operation. The work is organized around four areas: organization, covering the design of future-fit marketing structures and operating models; ecosystem, focused on identifying effective agency and technology partners; accountability, addressing governance, controls and remuneration models; and science, aimed at strengthening measurement and effectiveness of marketing spend. Named areas of practice include pitch management, media audits, agency performance evaluation, MarTech review, and assessment of AI's impact on marketing and search. The agency also publishes reports and insights on topics such as retail media governance and AI search, reflecting its focus on advising marketers on structural and measurement issues rather than producing creative or media buying itself. Engagements are described as being tailored to individual client needs, with an emphasis on reducing wasted spend and increasing the measurable value of existing marketing investment.