B Evidence Grade B Graded accuracy verified by the review judge Safe to Cite Dated

15%

15% -- ad spend for UK advertisers (2020)

Name: Ad Spend Statistics
Creator: Lighthouse Intelligence
Published: 2026-08-15

2020 · ISBA

In ISBA's 2020 study, 15% of marketer media investment was an 'unknown delta' unaccounted for across the media supply chain.

Attributed to low match rate (12%) when reconciling log-level campaign data across the supply chain

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Attribution: ISBA View source

Lighthouse Research Team

Last verified: 2026-08-15 · How we verify data →

Source verified Evidence graded

Value

15%

Unit

Percentage

Data Vintage

2020

Entity

UK advertisers

Evidence Quality

Strong, reliable evidence

Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.

71/100 confidence

Score breakdown

Extraction

Source Trust

Citation Chain

Independence

Methodology

Freshness

Sources (3)

ISBA Primary Tier B

https://digiday.jp/agencies/pwc-will-lead-the-anas-programmatic-transparency-study/ ↗

Confidence: 61/100 Vintage: 2020 Channel: Deep Crawl

Source Article

全米広告主協会、「透明性」に関する新たな調査を開始：PwCがチームリーダーに指名される | DIGIDAY［日本版］

全米広告主協会（ANA）はこのたび、プログラマティック広告取引の透明性に関する調査チームのリーダーとして、プライスウォーターハウスクーパース（PwC）を指名した。調査は、「唖然とするほど複雑」といわれるアドテク業界のサプライチェーンにおける広告主企業のメディア予算配分を検証するものだ。全米広告主協会（The Association of National Advertisers：以下ANA）はこのたび、プログラマティック広告取引の透明性に関する調査チームのリーダーとして、プライスウォーターハウスクーパース（PricewaterhouseCoopers：以下PwC）を指名した。調査は、「唖然と…

Also cited by

statista.com https://www.statista.com/

2026-08-15

triplewhale.com https://www.triplewhale.com/

2026-08-15

Original Research

ISBA · Original study ↗

Methodology

Unaccounted for in the media supply chain

Methodology documented

Segmentation

Industrymarketing

Cite this stat

Plain Text

UK advertisers: 15% ad spend. Source: ISBA (2020). Via Lighthouse Intelligence -- https://lighthousedata.io/data/unaccounted-media-budget

HTML Embed

<blockquote cite="https://lighthousedata.io/data/unaccounted-media-budget" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>15%</strong> -- ad spend for UK advertisers<br><small>Source: ISBA (2020) · <a href="https://lighthousedata.io/data/unaccounted-media-budget" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>

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