B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
31%
31% -- proposal close rate lift for Proposals under five pages (2026)
Proposals under five pages close 31% more often than longer proposals.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
31%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Proposify
Primary
Tier C
https://www.decktopus.com/blog/best-business-proposal-tools ↗
Source Article
Mastering Proposals: Exploring the Best Business Proposal Tools and Software Solutions - Decktopus AI
Sales & Proposals
Mastering Proposals: Exploring the Best Business Proposal Tools and Software Solutions
Discover the best business proposal tools, including PandaDoc and Proposable, to streamline your proposal process and win more clients.
İlayda Tunaboylu
What Is a Business Proposal?
A business pr…
Original Research
Proposify
· Original study ↗
Methodology
Cited as industry research from Proposify and independent sales data
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Proposals under five pages: 31% proposal close rate lift. Source: Proposify (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/short-proposals-close-rate-lift
HTML Embed
<blockquote cite="https://lighthousedata.io/data/short-proposals-close-rate-lift" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>31%</strong> -- proposal close rate lift for Proposals under five pages<br><small>Source: Proposify (2026) · <a href="https://lighthousedata.io/data/short-proposals-close-rate-lift" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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