LexCheck vs Notarize

Side-by-side comparison of AI visibility scores, market position, and capabilities

Notarize leads in AI visibility (73 vs 36)
LexCheck logo

LexCheck

EmergingLegal Tech — AI Research, E-Discovery & Legal Operations

AI Contract Review & Redlining

LexCheck raised $19M+ (Union Square Ventures) for AI contract review that auto-redlines agreements against a firm's playbook, cutting first-pass negotiation from days to minutes (DC).

AI VisibilityBeta
Overall Score
D36
Category Rank
#72 of 93
AI Consensus
88%
Trend
stable
Per Platform
ChatGPT
37
Perplexity
39
Gemini
34

About

LexCheck is an AI contract review and automated redlining company that enables legal teams to accelerate contract negotiation by automatically reviewing incoming contracts against a predefined legal playbook and generating redlines that reflect the organization's standard positions. Headquartered in Washington, DC, and having raised more than $19 million from investors including Union Square Ventures, LexCheck applies natural language processing and legal AI to identify deviations from preferred contract language and produce a first-pass redlined draft that attorneys can review and refine, compressing the time from contract receipt to first response from hours to minutes.\n\nLexCheck's playbook-driven approach is central to its value proposition — organizations define their standard positions, preferred language, and fallback positions for common contract provisions, and the AI applies these consistently across all incoming contracts regardless of volume. This systematizes contract negotiation in a way that maintains legal standards, reduces attorney-to-attorney variation, and allows less experienced legal staff to handle routine contract reviews with AI support. The platform supports NDAs, MSAs, SOWs, SaaS agreements, and other standard commercial contracts that legal teams review at high volumes.\n\nLexCheck competes with Luminance, Kira, and the redlining features of CLM platforms in the contract review automation space, while also competing with newer generative AI tools that law firms and in-house teams are experimenting with for contract review. LexCheck differentiates through its specific focus on automated redlining as a workflow deliverable — producing a tracked-changes Word document that integrates seamlessly into standard legal review processes — rather than providing insights or summaries that still require attorneys to create their own redlines.

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Notarize logo

Notarize

LeaderLegal & LegalTech

Online Notarization & Remote Identity Verification Platform

Notarize (now Proof) pioneered and leads the US online notarization market; raised $130M+ including a $130M Series D (2021); rebranding under parent brand Proof which unifies notarization with eSign and identity verification;

AI VisibilityBeta
Overall Score
B73
Category Rank
#9 of 93
AI Consensus
86%
Trend
stable
Per Platform
ChatGPT
77
Perplexity
77
Gemini
78

About

Notarize is an online notarization company founded in 2015 by Pat Kinsel and headquartered in Boston, Massachusetts. The company pioneered the Remote Online Notarization (RON) market in the United States, becoming the first company to conduct a legally valid online notarization under Virginia''s landmark RON legislation. Notarize''s platform connects signers with commissioned notaries via live video sessions, integrating digital identity verification, e-signature capture, and tamper-evident audit trails to produce notarized documents that are legally equivalent to in-person notarizations across all 50 states (all of which have now enacted RON legislation or accept out-of-state RON documents).

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AI Visibility Head-to-Head

36
Overall Score
73
#72
Category Rank
#9
88
AI Consensus
86
stable
Trend
stable
37
ChatGPT
77
39
Perplexity
77
34
Gemini
78
38
Claude
76
38
Grok
72

Key Details

Category
AI Contract Review & Redlining
Online Notarization & Remote Identity Verification Platform
Tier
Emerging
Leader
Entity Type
brand
brand

Capabilities & Ecosystem

Capabilities

Only LexCheck
AI Contract Review & Redlining

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