B
Evidence Grade B
Graded
under review
Safe to Cite
Current
6x
6x -- campaign roi for Women for Women International direct mail campaign (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
6x
Unit
Ratio
Data Vintage
2026
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
MarketReach (Royal Mail)
Primary
Tier B
https://www.marketreach.co.uk/case-studies/mailing-women-work-acquired-donors-women-women ↗
Source Article
Mailing women at work acquired donors for Women for Women
Original Research
MarketReach (Royal Mail)
· Original study ↗
Methodology
Reported campaign return-on-investment from a direct mail fundraising case study; calculation basis not stated.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Women for Women International direct mail campaign: 6x campaign roi. Source: MarketReach (Royal Mail) (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/women-for-women-mail-campaign-roi-6to1
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<blockquote cite="https://lighthousedata.io/data/women-for-women-mail-campaign-roi-6to1" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>6x</strong> -- campaign roi for Women for Women International direct mail campaign<br><small>Source: MarketReach (Royal Mail) (2026) · <a href="https://lighthousedata.io/data/women-for-women-mail-campaign-roi-6to1" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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