B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
15%
15% -- marketing roi improvement for brands continuously optimizing campaigns with data (2025)
Brands that continuously optimize their marketing campaigns based on data see a 15-20% improvement in marketing ROI over time.
- Reported as a range of 15-20%
- Secondary citation of Nielsen data
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
15%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
ppcgrowthstudio.com
Primary
Tier C
https://ppcgrowthstudio.com/hubspot-roi-data-driven-marketing-for-beginners/ ↗
Source Article
HubSpot ROI: Data-Driven Marketing for Beginners
A Beginner’s Guide to Marketing Delivered with a Data-Driven Perspective Focused on ROI Impact.
Are you ready to transform your marketing strategy and see real returns on your investment? Forget gut feelings and guesswork – we’re diving into data-driven marketing using HubSpot Marketing Hub. Can a p…
Original Research
ppcgrowthstudio.com
· Original study ↗
Methodology
Cited as Nielsen data; range 15-20%, midpoint used
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
brands continuously optimizing campaigns with data: 15% marketing roi improvement. Source: ppcgrowthstudio.com (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/nielsen-optimization-roi-improvement
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<blockquote cite="https://lighthousedata.io/data/nielsen-optimization-roi-improvement" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>15%</strong> -- marketing roi improvement for brands continuously optimizing campaigns with data<br><small>Source: ppcgrowthstudio.com (2025) · <a href="https://lighthousedata.io/data/nielsen-optimization-roi-improvement" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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