Proof
Proof (Notarize, Inc. dba Proof.com) is a Boston-based identity-assured transaction management platform that provides cryptographic identity verification, biometric authentication, remote online notarization, and AI-driven fraud detection to enterprises in real estate, financial services, insurance, and other regulated verticals.
- Company typePrivate
- Founded2015
- HeadquartersBoston, United States
- Headcount251–500
- GTM typeB2B
- OfferingSoftware
What Proof does
Proof (legally Notarize, Inc., dba Proof.com) is a Boston-based identity-assured transaction management platform founded in 2015 that secures digital transactions through cryptographic identity verification, biometric authentication, remote online notarization, and real-time fraud detection. The platform is anchored by the Proof Engine and organized around core products (Identify, Notarize, Verify, Sign, Certify, Close, Defend, Command Center) and platform capabilities (Digital ID/Persistent Identity, OmniTrust fraud model, EasyLinks), which together compose the Identity Authorization Network — a hybrid system combining 1,800+ live identity agents with an AI-driven fraud model analyzing 100+ network signals. Proof has secured more than $643 billion in cumulative real estate transactions, including $151 billion in 2025 alone, and serves enterprise customers including First American Title, United Wholesale Mortgage, TIAA, Rippling, Liberty Mutual, USAA, Root Insurance, Lightspark, and Florida Agency Network.
The company monetizes through subscription plans, per-transaction fees on Notarize, Sign, Identify, Verify, and Certify services, plus enterprise API-based licensing and integration services. Pricing is quote-based across Business, Title, and Lender tiers with multi-year enterprise contracts, supplemented by a free Trial Access for evaluation. Proof pursues a vertical go-to-market with enterprise field sales targeting real estate, financial services, insurance, hiring and onboarding, legal services, wealth management, and emerging use cases such as AI agent authentication (Know Your Agent). The company has raised approximately $130 million across disclosed funding rounds, including strategic investments from State Farm Ventures (February 2025) and Visa Ventures (November 2025), and holds stacked regulatory certifications (NIST IAL2 by Kantara Initiative, SOC 2, MISMO, WCAG AA, WebTrust) plus FIDO Alliance Sponsor membership.
Geographically, Proof is U.S.-domestic only — services are explicitly limited to U.S.-based transactions requiring a U.S. Social Security Number — though partnerships with Visa and IDEMIA Public Security position the company for future international expansion via partner networks. Leadership is anchored by founder-CEO Pat Kinsel, with Gary Weingarden joining as Chief Privacy Officer in November 2025 to lead global privacy, GRC, and identity standards governance as the company expands into payments and AI-agent authentication standards.
Proof firmographics
Firmographics- Name
- Proof
- Legal name
- Notarize, Inc. dba Proof.com
- Website
- https://proof.com
- Company type
- Private
- Founded year
- 2015
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Proof (Notarize, Inc. dba Proof.com) is a Boston-based identity-assured transaction management platform that provides cryptographic identity verification, biometric authentication, remote online notarization, and AI-driven fraud detection to enterprises in real estate, financial services, insurance, and other regulated verticals.
- Ownership category
- akta.pro rank
Proof industry classification
Industry- Product category
- Identity Verification & Digital Transaction Security
- NAICS
- Investigation and Personal Background Check Services (561611)
- SIC
- Finance Services (6199)
- akta.pro primary industry
- Identity Verification & Digital ID (IDV, eIDAS, biometrics) (FSAGAFAA)
Keywords
Where Proof is headquartered
LocationHeadquarters
- HQ city
- Boston
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Proof business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Subscription Plans: Recurring subscription fees for Subscribers who purchase Services via Order Form or pay Fees on the Site or App for periodic or per-Transaction subscriptions (Subscription Plan).
- Per-Transaction Fees: Per-Transaction charges on subscription plans for use of Notarize, Sign, Identify, Verify, Certify, and other Services; volume-based enterprise pricing for Business, Title, and Lender audiences.
- Enterprise/Channel Implementation Services: API-based licensing, integration, and platform services for enterprises embedding Proof into their workflows (Command Center, Developer Docs, ATS integrations).
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Business pricing tier |
| Other | Multi-year contract | Title pricing tier |
| Other | Multi-year contract | Lender/Mortgage pricing tier |
| Freemium | Pay-as-you-go | Trial Access / Technical Access |
Go-to-market motion1 record
Distribution channels6 records
Marketing channels11 records
Proof product offering
Product offeringCore offering
Proof sells an identity-centric security platform that combines identity verification, remote online notarization, electronic signature, and AI-driven fraud detection into a single authorization infrastructure for digital transactions. The platform is built on the Proof Engine and serves enterprise customers (title companies, mortgage lenders, banks, credit unions, insurance carriers) that need to cryptographically verify signer identity, prevent deepfake-driven fraud, and produce auditable records. Revenue is generated through subscription plans and per-transaction fees across named products (Identify, Notarize, Verify, Sign, Certify, Close, Defend, Command Center).
Product overview
Proof (operated by Notarize, Inc. dba Proof.com) offers a single unified identity-centric security platform — the Proof℠ platform — built around its Proof Engine and augmented by a suite of core products: Identify (confirm user identity), Notarize (digitally notarize documents), Verify (validate identity over video with deepfake detection), Sign (send documents for signature), Certify (create cryptographically verifiable records), Close (bring real estate closings online), Defend (catch fraud in real time), and Command Center (manage Proof across teams). Platform capabilities layer on top of these products, including Digital ID (verify once, carry identity everywhere), OmniTrust (Proof's fraud detection model), and EasyLinks (one-to-many transaction links). Together the products compose the Identity Authorization Network that secures $200B+ in transactions annually across real estate, financial services, insurance, credit unions, and other regulated industries.
Differentiator
Problem solved
Functional benefit
Brands
- Notarize: Notarize Network of remote online notaries; integrated as a product (Notarize) within the Proof platform for digital notarization services.
Products and services
- Identify Confirms user identity as part of Proof's platform suite, enabling customer identity verification before authentication into Proof-secured workflows.
- Notarize Provides remote online notarization (RON) of documents via video, with legally accepted notarization across 49 states + DC, including the Notarize Network of on-demand notaries.
- Verify Real-time, video-based identity verification combining live human-assisted verification with deepfake detection for high-risk transactions such as wire transfers, password resets, and account recovery.
- Sign Sends documents for electronic signature with verified-identity-backed signing, producing legally accepted signatures across Proof's network.
- Certify Leverages biometrics and cryptography to create verifiable records and cryptographically sign any content or transaction, addressing AI-generated impersonation, forged signatures, and manipulated content; also powers digital credentialing for digital asset compliance.
- Close Brings real estate closings online by combining eSign, remote online notarization, and identity verification into a unified closing workflow for title agents and lenders.
- Defend Cross-platform fraud detection product that monitors every authorization signed on the Proof network, automatically analyzing transactions for suspicious behavior with deepfake detection and signals from the broader identity network (OmniTrust).
- Command Center Enterprise-wide tooling to manage Proof across teams and organizations, with admin controls such as deactivating child organizations, SIEM audit event exports, and org management.
Companies that use Proof
Customer profileNamed customers18 records
Segments10 records
Ideal customer profiles4 records
Proof technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration15 records
AI capability15 records
Feature8 records
Proof partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core, flagship and minor.
- EnigmacorePartnered with Enigma to launch a Verified Business Identity and Authorization Layer for U.S. Businesses, building infrastructure for businesses to claim verified identity online.
- FIDO AllianceflagshipProof joined as a Sponsor member of the FIDO Alliance to contribute to standards development for AI agent authentication, particularly verifying AI agents act on behalf of authenticated users. Proof's NIST IAL2 certification and cryptographic binding capabilities support the "Know Your Agent" (KYA) framework. Other collaborators include OpenAI, Google, and Mastercard.
- IDEMIA Public SecurityflagshipStrategic partnership announced March 3, 2026 to develop a privacy-preserving digital identity framework integrating IDEMIA's biometric verification with Proof's cryptographically secured credentials. Joint framework enables verifiable digital credentials (VDCs) spanning physical, logical, and digital domains with cryptographic certificates, selective disclosure, and zero-knowledge proofs for use cases like KYC-sharing, identity-affirmed payments, and regulatory compliance.
- VisaflagshipPartnership to develop an enhanced digital payments security platform combining Proof's identity verification technology with Visa's payment network. Collaboration aims to safeguard high-value transactions, improve fraud detection, enable new online payment flows, and create a digital identity network comparable to Visa's payment network. Proof also introduced digital credentials for compliance and verification in blockchain-based financial services.
- LightsparkcoreLightspark is among the first adopters using Proof's Certify product to enhance compliance infrastructure for blockchain-based financial services (digital ID and sanctions credentials for regulated payments).
- Reality DefendercoreProof integrated Reality Defender's award-winning deepfake detection platform into its Verify solution, providing real-time identity verification combining live human-assisted verification with deepfake detection for high-risk transactions like wire transfers, password resets, and account recovery.
- PersonacorePersona is an identity verification and anti-fraud solution provider used by Proof as a service provider per Proof's Privacy Policy.
- SocurecoreSocure is an identity verification and anti-fraud solution provider used by Proof as a service provider per Proof's Privacy Policy.
- StripecoreStripe is used as a payment processor by Proof per the Privacy Policy; Stripe analyzes transaction data and personally identifying information to operate and improve its services, including fraud detection.
- Secure Technology AllianceminorIndustry body speaking alongside Proof at Identity Week America 2026, addressing digital identity and payment innovation in the financial sector.
- LeasepathcoreLeasepath embedded Notarize by Proof directly into its leasing platform to digitize the notarization last-mile for asset finance customers.
Scale indicators15 records
Recent moves6 records
Expansion highlights7 records
Proof competitors and assessment
Company assessmentDirect peers
- Socure: Enterprise IDV and KYC platform serving banks, fintechs, and government agencies with document verification, biometric authentication, and synthetic identity fraud detection. Socure is one of Proof's most direct competitors in financial services EKYC and is also a sub-processor for Proof.
- Jumio: Global identity verification and biometric authentication provider offering KYC, AML, and fraud solutions to financial services, sharing economy, and crypto customers. Jumio is a direct IDV competitor to Proof, particularly in the financial services and crypto customer segments.
- AuthenticID: Identity verification and fraud-prevention platform offering biometric, document, and deepfake-detection capabilities to financial services, telecom, and HR customers. AuthenticID competes directly with Proof's Verify and Defend product lines.
- Onfido (Entrust): AI-based digital identity verification platform (acquired by Entrust) offering document and biometric verification for financial services, gaming, and crypto. Competes directly with Proof's Verify and Certify products in regulated industries.
- Persona: A venture-backed identity verification platform offering KYC, document verification, and fraud-detection APIs to financial services, real estate, and HR buyers. Persona is a direct competitor to Proof's Identify and Verify products and is also listed as a Proof sub-processor, increasing channel overlap.
- Veriff: AI-powered identity verification platform with strong fraud-signal and biometric authentication capabilities serving financial services, mobility, and crypto customers. Direct competitor to Proof's Verify and Identify products in mid-market and enterprise financial services deals.
- ID.me: Federally-certified identity verification network used by government agencies (VA, IRS), financial institutions, and healthcare for EKYC. ID.me overlaps with Proof's EKYC and government/insurance customer segments, including a shared focus on NIST IAL2-grade identity proofing.
Emerging players
- Vouched: AI-driven identity verification and deepfake detection platform serving banking, fintech, healthcare, and HR customers. Vouched is an emerging player in the same IDV + deepfake detection category as Proof's Verify and Defend products.
Broad incumbents
- Okta: Identity and access management platform serving workforce and customer identity use cases for enterprises. Okta is a broad identity incumbent that overlaps with Proof in enterprise identity assurance, though Proof is differentiated by its notarization and cryptographic transaction-signing capabilities.
- DocuSign: Incumbent e-signature and agreement management platform that recently expanded into identity verification (ID Verification, ID Evidence) and broader agreement workflows. DocuSign is a broad incumbent competitor to Proof's Sign, Notarize, and Certify products, with significantly larger scale but less specialization in deepfake-aware cryptographic identity.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Proof social profiles
Digital presenceProof compliance and trust
Trust signalCompliance7 records
Proof financial estimates
Financial estimateRevenue estimate
Valuation estimate
Proof leadership team
Management profileNumber of profiles
Profiles4 records
Proof funding detail
Funding detailFunding overview
Funding rounds12 records
Investors20 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Proof M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Proof
What does Proof do?
Proof sells an identity-centric security platform that combines identity verification, remote online notarization, electronic signature, and AI-driven fraud detection into a single authorization infrastructure for digital transactions. The platform is built on the Proof Engine and serves enterprise customers (title companies, mortgage lenders, banks, credit unions, insurance carriers) that need to cryptographically verify signer identity, prevent deepfake-driven fraud, and produce auditable records. Revenue is generated through subscription plans and per-transaction fees across named products (Identify, Notarize, Verify, Sign, Certify, Close, Defend, Command Center).
Is Proof a public or private company?
Proof is a private company. It is classified as venture growth investor backed and is currently operating.
When was Proof founded?
Proof was founded in 2015. It employs 251 to 500 people.
Where is Proof based?
Proof is headquartered in Boston, United States, in the North America region.
How does Proof make money?
Three revenue lines are on record. Subscription Plans are the primary driver. The others are per-Transaction Fees and enterprise/Channel Implementation Services.
Who are Proof's main competitors?
Direct peers on record are Socure, Jumio, AuthenticID, Onfido (Entrust), Persona, Veriff and ID.me. Vouched is listed as an emerging player. Broad incumbents are Okta and DocuSign.
Does Proof have an API?
Yes. Proof offers a developer-facing API with dedicated API Supplement terms. The API allows Subscribers to programmatically access Proof's identity verification, digital signing, notarization, and identity-assured transaction capabilities. Documented via the Proof Developer Docs at dev.proof.com. Developer documentation is at dev.proof.com.
What industry is Proof in?
Proof's product category is Identity Verification & Digital Transaction Security. Its primary akta.pro industry code is FSAGAFAA, Identity Verification & Digital ID (IDV, eIDAS, biometrics). Its NAICS code is 561611 and its SIC code is 6199.