B
Evidence Grade B
Graded
under review
Safe to Cite
Current
25%
25% -- lead conversion rate improvement for Email marketing using HubSpot (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
25%
Unit
Percentage
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
CampaignCleaner
Primary
Tier B
https://campaigncleaner.com/blog/email-marketing-automation.html ↗
Source Article
18 Email Marketing Automation Tools
Discover the cutting-edge email marketing automation platforms that are transforming the industry. This article features expert insights on how to leverage AI-driven personalization, automate your entire sales funnel, and optimize client communication. Learn from the best on how to get more response…
Original Research
CampaignCleaner
· Original study ↗
Methodology
Improvement due to behavior-driven automation and AI-powered A/B testing
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Email marketing using HubSpot: 25% lead conversion rate improvement. Source: CampaignCleaner (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/lead_conversion_rate_improvement_hubspot
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<blockquote cite="https://lighthousedata.io/data/lead_conversion_rate_improvement_hubspot" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>25%</strong> -- lead conversion rate improvement for Email marketing using HubSpot<br><small>Source: CampaignCleaner (2026) · <a href="https://lighthousedata.io/data/lead_conversion_rate_improvement_hubspot" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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