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E-Signature Software · Rank #10 of 10

Proof

Remote online notarization (RON) market leader.

By Proof Technology, Inc. (formerly Notarize) · Founded 2015 · Boston, MA · private

Proof (formerly Notarize) is the remote online notarization (RON) market leader, founded 2015 by Pat Kinsel. The company rebranded from Notarize to Proof in 2024 to reflect a broader identity-and-trust platform positioning. The product covers remote online notarization (video-witnessed notary signing), e-signature, and identity verification. Strengths: category leader for RON (the legally distinct subset of esignature where a notary public is required), strongest identity verification stack, and growing share in real estate, mortgage, and legal-services verticals. Best fit for organizations needing notarized documents, real estate closings, mortgage origination, automotive title transfers, legal-services intake, where a notary public must witness signing. Trade-offs: narrower category than general e-signature (most documents do not require notary), pricing per-transaction is meaningful ($25-$75 per notarized document), state-by-state RON legality remains uneven (most US states now permit RON but not all), and the product is overkill for buyers needing only standard esignature.

Visit Proof Vendor pricing Compare to Jotform Sign
Best for

Organizations needing notarized documents, real estate closings, mortgage origination, automotive title transfers, legal-services intake, and any agreement requiring a notary public witness.

Worst for

Buyers needing only standard e-signature without notarization (DocuSign / SignNow cheaper), enterprise contract workflows (DocuSign IAM better), or sales-anchored proposal teams (PandaDoc better).

Vendor Trust Score

Is Proof a trustworthy vendor?

7.8/10
Mixed
Pricing transparency
Published rates; no hidden fees
8.0
Contract fairness
Reasonable terms; no auto-renew traps
7.5
Incident response
How they handle outages and breaches
7.5
Post-acquisition behavior
Customer treatment after M&A or PE
8.5
Executive stability
Leadership churn over 24 months
8.0
Roadmap honesty
Public commitments held
7.5
Trust signal log
  • 2021-03-22
    Series D $130M; pandemic-driven RON growth
  • 2022-09-22
    Layoffs reported amid post-pandemic real estate slowdown
  • 2024-04-22
    Rebranded from Notarize to Proof; broader identity-and-trust positioning
Vendor Trust is scored independently of product quality. A great product from an unfair vendor still earns a low trust score.
Review Intelligence

What 280 reviews actually say

Synthesized from G2, Capterra, Reddit, Trustpilot. Patterns >15% prevalence shown.

Last synthesized
2026-04-29

Praise patterns

  • Category leader for remote online notarization
    84% →
  • Strongest identity verification stack
    71% →
  • Right call for real estate and mortgage
    64% →

Complaint patterns

  • Per-transaction pricing meaningful
    47% →
  • State-by-state RON legality uneven
    41% →
  • Brand confusion post-rebrand
    31% ↑
Sentiment trend (6 months)
76/100 +2 pts
12
01
02
03
04
05
Patterns are extracted from review corpus and human-verified. We surface trends, not anecdotes.
Verified Pricing

What buyers actually pay

87 anonymized deal disclosures · last updated 2026-05-01

Contribute your deal price
Company size Median annual
SMB / Pay-as-you-go $600
Business / Mid-market $4,800
Verified pricing is crowdsourced from buyers under anonymity guarantees. Vendor-listed prices are validated against actual deals quarterly.
Compliance & Security

Auto-verified certifications

Verified 2026-05-01
SOC 2 Type II
ISO 27001
HIPAA
GDPR
CCPA
PCI DSS
FedRAMP

Editorial: Strengths

  • Category leader for remote online notarization (RON)
  • Strongest identity verification stack
  • Growing share in real estate, mortgage, legal-services
  • Mature regulatory engagement (state-by-state RON laws)
  • Founder-led
  • Network of certified notaries on-demand

Editorial: Weaknesses

  • Narrower category than general e-signature
  • Per-transaction pricing meaningful ($25-$75/doc)
  • State-by-state RON legality still uneven
  • Overkill for buyers needing only standard esign
  • Brand confusion post-Notarize-to-Proof rebrand (2024)

Key features & integrations

  • +Remote online notarization (RON)
  • +E-signature with audit trail
  • +Knowledge-based authentication (KBA)
  • +ID verification (document + selfie + liveness)
  • +Video session recording (state requirement)
  • +Network of certified notaries
  • +Mobile apps
  • +Mortgage and title industry integrations
40+ integrations
SalesforceEncompass (mortgage)Resware (title)SoftProQualia
Geography supported
US (state-by-state RON legality); growing international
Best fit
1–10,000 employees · Real estate, mortgage, legal-services, automotive titling
Editorial deep-dive

Read our full ranking of E-Signature Software

Proof ranks #10 in our editorial review of 10 e-signature software platforms. The deep-dive covers methodology, comparison tables, decision matrix, migration scoring, and FAQs.

Read the full ranking

Closest alternatives in E-Signature Software

#9
Jotform Sign
Form-anchored esignature, native to Jotform forms.
★ 4.7 public
#8
Nitro Sign
PDF editor + esignature bundled, an Adobe Acrobat alternative.
★ 4.4 partial
#7
OneSpan Sign
Financial-services-anchored esignature with strongest authentication options.
★ 4.4 opaque
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