D4Sign

What D4Sign does

D4Sign is a Brazilian electronic and digital signature platform headquartered in São Paulo and operating under the legal entity D4S Serviços em Tecnologia. Founded in 2015, the company self-positions as the largest electronic signature platform in Brazil, serving more than 500,000 companies across HR, legal, education, real estate, healthcare, and broader enterprise segments. Its core technology delivers signatures with legal validity under Brazilian law (Medida Provisória 2.200-2/01) and supports 14 authentication methods including PIX, WhatsApp, SMS, selfie, video-selfie, and ICP-Brasil digital certificates, with unique integration into federal government databases (gov.br, DENATRAN) for identity verification.

The platform is built on AWS infrastructure and exposes its capabilities through a REST API, WebHooks, Embed iframe components, and SSO SAML 2.0 integrations with Azure AD, Google Workspace, and Okta. The product suite comprises the D4Sign core platform, the D4Sign.AI ecosystem (Big Data analytics, document Analyzer, conversational Chat), Cofres secure document vaults, D4Sign CLM for contract lifecycle management, PowerForm for template-driven automation, D4Sign Score for biometric verification, and the GoPaperless sustainability seal. D4Sign holds ISO 27001 certification, complies with LGPD (Brazil's GDPR equivalent), and supports ICP-Brasil A1/A3 digital certificates for legally binding signatures.

D4Sign monetizes through a freemium model with a 30-day, 5-shipment trial, multi-tier annual subscriptions, usage-based add-ons for premium authentication methods (WhatsApp, SMS, D4Sign Score), and per-shipment fees at R$5.00 beyond plan limits. Its go-to-market combines product-led growth (self-serve trial and web onboarding) with a sales-assisted enterprise motion and an API-first distribution targeting developers and integrators. The company operates as part of the ByZucchetti group and maintains channel partnerships via the D4Sign Together program alongside vertical GTM partnerships with Imobzi (real estate) and Conexa (healthcare).

Name

D4Sign

Legal name

D4S Serviços em Tecnologia

Website

https://d4sign.com.br

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

51–100 employees

Short description

D4Sign is Brazil's largest electronic signature platform, serving 500,000+ companies with legally valid e-signatures, 14 authentication methods including PIX and ICP-Brasil, AI-powered document analysis, and CLM capabilities on AWS infrastructure.

Ownership category

akta.pro rank

Product category

Electronic Signature Software

NAICS

Software Publishers (5132)

SIC

Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Authentication (MFA/Passwordless/Biometrics) Platforms (BPAMAEAE)

akta.pro secondary industry

Identity Verification (IDV) & Document Verification (FSAMALAE)

Keywords

• Electronic signature platform
• Digital signature solutions
• Contract lifecycle management
• Document workflow automation
• Electronic signature API

Headquarters

HQ city

São Paulo

HQ country

Brazil

HQ region

Latin America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Marketing or Sales, Infrastructure, Operations

Revenue model

1. Subscription Plans: Recurring subscription model with multiple plan tiers offering different feature sets. Plans include unlimited signatures and users (except unlimited plan), unlimited document storage, API access (except unlimited plan), and batch sending capabilities.
2. Usage-based Add-ons: Additional charges for premium authentication methods including WhatsApp notifications, SMS tokens, D4Sign Score facial verification, and BigFile for documents exceeding 20MB up to 500MB.
3. Per-shipment Charges: Pay-per-send model where individual shipments beyond plan limits are charged at R$5.00 per additional send. Also available for standalone purchase of shipments.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

D4Sign operates a cloud-based electronic and digital signature platform that enables Brazilian businesses and individuals to sign documents remotely with legal validity under Medida Provisória 2.200-2/01. The platform supports 14 authentication methods (PIX, WhatsApp, SMS, selfie, D4Sign Score facial recognition, ICP-Brasil digital certificates) and offers secure Cofres (vaults), REST API integration, and AI-powered document analysis via D4Sign.AI.

Product overview

D4Sign is Brazil's largest electronic and digital signature platform, offering a unified platform-plus-modules architecture. The core D4Sign platform provides electronic and digital signatures with legal validity under Brazilian law (MP 2.200-2/01), supporting 14 authentication methods including PIX, WhatsApp, SMS, selfie, video selfie, and ICP-Brazil digital certificates. The platform integrates with cloud storage services (Dropbox, Google Drive, OneDrive) for document upload and supports SSO via Azure, Google Workspace, and Okta. Key add-on modules include D4Sign.AI (AI-powered document analysis and chat), D4Sign CLM (Contract Lifecycle Management), Cofres (secure document vaults with unlimited storage), PowerForm (automated contract creation), and the GoPaperless sustainability seal. The D4Sign REST API and Embed functionality enable developer integration into external systems, while the D4Sign Together partner program extends distribution through resellers.

Differentiator

Problem solved

Functional benefit

Brands

• D4Sign.AI: Artificial intelligence ecosystem that uses AI to accelerate document signing and generate insights for strategic contract management.
• D4Sign CLM
• GoPaperless D4Sign
• D4Sign Together

Products and services

• D4Sign (Core Platform) Brazil's largest electronic and digital signature platform providing legally valid signatures under Brazilian MP 2.200-2/01, with 14 authentication methods including PIX, WhatsApp, SMS, selfie, video-selfie, and ICP-Brasil digital certificates. Designed for businesses and individuals needing to execute and manage signed documents remotely.
• D4Sign.AI AI-powered ecosystem within D4Sign that accelerates document signing and generates strategic insights for contract management. Includes Big Data analytics from extracted documents, Analyzer for document summaries (object, parties, payment terms), and Chat for signatory questions about document content.
• Cofres (Vaults) Secure cloud-based document storage areas where users organize documents in folders and subfolders. Provides unlimited document storage while account is active, with access controls and sharing permissions. Targeted at organizations needing centralized, secure document archiving.
• D4Sign CLM (Contract Lifecycle Management) Contract Lifecycle Management solution that manages the complete contract lifecycle from creation to execution, including WORD and HTML templates, batch sending, clause banks, PowerForm automation, and contract management workflows. Designed to reduce complexity and increase operational efficiency for legal and procurement teams.
• PowerForm Automated contract creation feature that allows users to generate and send documents from pre-configured templates, enabling high-volume automated document workflows for organizations with recurring contract creation needs.
• D4Sign REST API RESTful API enabling developers to integrate D4Sign's electronic signature capabilities into external systems. Supports document upload, signature workflows, vault/cofre management, signatory administration, ICP-Brasil certificates, observers, and webhook notifications. Authentication via tokenAPI and cryptKey parameters.
• Embed D4Sign JavaScript-based iframe component allowing electronic signature workflows to be embedded directly into external websites and applications, providing a seamless signing experience within the customer's own environment. Targeted at partners and enterprises wanting white-label integration.
• GoPaperless Sustainability Seal Sustainability certification seal available to corporate, professional, and individual accounts, demonstrating environmental contribution through paper reduction from electronic document signing. Tracks trees preserved, water saved, and CO2 emissions avoided as marketing/ESG credential for adopting organizations.
• D4Sign Score Advanced identity verification feature using facial recognition to cross-reference signatory selfie photos against data from Brazil's DENATRAN (traffic authority) database of CNH and other government documents. Provides biometric authentication and fraud prevention for high-security signing scenarios.

Quantifiable outcome

• 500,000+ companies trust D4Sign for electronic document signing

Named customers2 records

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability7 records

Feature10 records

Partnerships

Six partnerships are on record, tiered core and minor.

• ByZucchetticoreOthersD4Sign is part of the ByZucchetti group, a major business software company. The partnership provides backing and integration with the broader ByZucchetti ecosystem of business solutions including ERP, HR, and financial systems.
• ImobziminorGTM or Marketing PartnerPartnership with Imobzi (real estate management platform) offering special conditions for electronic signature integration, enabling Imobzi customers to use D4Sign for property contracts and rental agreements.
• ConexaminorGTM or Marketing PartnerPartnership with Conexa (healthcare platform) offering exclusive discounts for electronic signature integration, enabling healthcare providers to use D4Sign for patient documentation and consent forms.
• IPÊ (Instituto de Pesquisas Ecológicas)minorStrategic or Co-development PartnerEnvironmental partnership with IPÊ, a Brazilian ecological research institute. D4Sign's GoPaperless sustainability initiative includes contributions to IPÊ for environmental conservation projects linked to paper reduction achievements.
• Amazon Web ServicescoreTechnology or IntegrationCloud infrastructure partnership using AWS services to power D4Sign's platform. AWS provides the scalable, secure cloud infrastructure for hosting the electronic signature platform and data storage.
• D4Sign Together PartnerscoreChannel Partner/ Reseller/ DistributorChannel partner program for resellers and integrators to distribute D4Sign solutions. Partners can offer D4Sign's electronic signature platform to their customers as part of integrated solutions.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Clicksign: Brazilian electronic signature platform offering legally binding e-signatures with API, ICP-Brasil support, and similar authentication methods. Direct head-to-head competitor in the Brazilian market with comparable product breadth.
• Autentique: Brazilian e-signature platform focused on document signing with legal validity. Competes directly with D4Sign in the Brazilian SMB and mid-market, offering similar REST API and authentication integrations.
• BRy Tecnologia: Brazilian digital signature and certification company with deep ICP-Brasil expertise. Competes in the regulated Brazilian e-signature market, particularly for digital certificates and high-assurance signing.
• Dropbox Sign (HelloSign): Dropbox-owned e-signature platform with developer-friendly API. Competes on developer experience and SMB/mid-market signing workflows with global availability.
• PandaDoc: Document workflow and e-signature platform with strong CLM capabilities. Directly competes with D4Sign CLM module and targets sales operations teams.
• SignEasy: Mobile-first e-signature platform serving SMBs. Comparable product offering targeting similar small business and individual professional users globally.

Broad incumbents

• DocuSign: Global e-signature leader with significant presence in Brazil. Offers a broader portfolio (CLM, IAM, Identify verification) at enterprise scale; competes on premium accounts and multinational customers operating in Brazil.
• Zoho Sign: Zoho's e-signature product bundled with the broader Zoho productivity and business suite. Competes as part of a wider portfolio targeting SMBs already in the Zoho ecosystem.
• Adobe Acrobat Sign: Adobe's e-signature solution bundled with Acrobat and Adobe Document Cloud. Targets enterprise customers and competes on integration with the broader Adobe productivity ecosystem.

Regional players

• Valid Certificadora: Brazilian digital certification authority issuing ICP-Brasil certificates and providing identity/signature solutions. Adjacent competitor with stronger regulatory positioning in digital certificates but narrower e-signature platform offering.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCxU01EDgc5FvAgzCpv1QHaw
• Facebookfacebook.com/d4sign
• LinkedInbr.linkedin.com/company/d4sign
• Instagraminstagram.com/d4sign_

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds1 record

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about D4Sign