When evaluating the Best Certification Authorities From Brazil, the starting point is to understand, as this guide shows about digital certificateThe choice shouldn't be based solely on brand or price: it depends on accreditation, issuance, renewal, revocation, support, integration, and adherence to the company's digital workflow. In practice, the "best" certification authority is the one that combines regulatory compliance with a simple, secure operation compatible with the pace of your legal, commercial, and financial teams.
Within the ICP-Brasil structure, a Certificate Authority The Certification Authority (CA) is the entity responsible for issuing, distributing, renewing, revoking, and managing digital certificates. The ITI itself defines the CA as a subordinate body within the ICP-Brasil hierarchy, responsible for validating the identity of the certificate holder through cryptographic mechanisms and for digitally signing the issued certificate.
Summary
- A Certification Authority needs to be compared based on operational and regulatory criteria, not just market perception.
- ZapSign, Certisign, Soluti, and Valid have valid registrations on official ICP-Brasil ecosystem pages, although within different chains and scopes.
- Issuance, renewal, revocation, support channels, and integration directly influence the total cost of the operation.
- When there is no publicly available SLA, the ideal approach is to treat issuance and support times as internal approval KPIs.
Quick facts
- On the official page about Certification Authorities of ICP-BrasilThe ITI details the ecosystem structure with ACs at different levels.
- On the public page of ICP-Brasil ChainsThe official repository centralizes the current certificates and chains.
- In the ITI repository, the AC ZAPSIGN It appears with a valid status and types SE-S, SE-H, and A3.
How to compare the best Certification Authorities in Brazil?
The most useful criterion for a company is not "who is best known," but rather who reduces friction in issuing invoices, renews with predictability, offers a clear support path, and integrates with the stack already used by the operation. Check out the characteristics of ZapSign, Certisign, Soluti, and Valid below.
| Criterion | ZapSign | certisign | Soluti | Valid |
|---|---|---|---|---|
| Official registration with ITI | Yes, with a valid situation. | Yes, with valid tickets. | Yes, with valid tickets. | Yes, with a valid entry. |
| issue | Authorized CAs and RAs; recent focus on ICP-Brasil | Purchase flows, scheduling, and video conferencing. | Online broadcasting and video conferencing as per schedule. | Scheduling and issuing with guided validation. |
| Renovation | Scope in public consolidation | Step-by-step instructions are available on the website. | Extensively documented online process | Renewal and documented videoconferencing |
| Integration | API and integrations with tools | API for systems | Hub and APIs for issuing and signing | APIs via IntegraICP and PSC |
| Public SLA transparency | Not identified on open page | Not identified on open page | Not identified on open page | Not identified on open page |
Accreditation and role within ICP-Brasil
According to ITIICP-Brasil is the hierarchical chain of trust that supports the issuance of digital certificates in the country, and this is what makes accreditation a basic requirement to be included in the comparison. In the case of ZapSign, the official repository indicates a valid status for the ZAPSIGN Certification Authority, issuing SE-S, SE-H, and A3 certificates.
In parallel, the official ITI repository shows that Certisign, Soluti, and Valid also have valid registrations in the ecosystem, although the user needs to observe in which chain and for what purpose each entry appears. This detail avoids comparing only the trade name and helps to analyze real compatibility with the company's needs.
Issuance, renewal, and revocation in practice
In its operational process, Certisign publishes a three-step renewal workflow and provides video conferencing alternatives, sending a link via email and requiring a camera and internet connection for remote service. Soluti details a renewal journey that can be entirely online, including online issuance and, where applicable, video conferencing. Valid also publishes issuance scheduling and instructions for video conferencing.
In management terms, this means that the "issuance time" KPI should be tested during validation and not assumed. If the public website shows the journey but does not publish a formal SLA, the company should internally measure the time from purchase to validation, video conference time, reissue rate, and call volume.
Useful KPIs for evaluating AC before hiring
| KPI | What to measure | Why measure? |
|---|---|---|
| Time until broadcast | Hours or days between purchase and active certificate. | It shows the impact on team productivity. |
| Support response time | First answer and solution | Reduces operational downtime. |
| Remote completion rate | % of completed emissions without displacement | Indicates effective digital experience. |
| Rework rate | Resubmissions, rescheduling, and registration errors | It affects total cost and internal satisfaction. |
Digital support and experience
On public pages, Certisign maintains a scheduling and support area for issuing and renewing invoices; Soluti brings together support by product, telephone, and service paths; Valid concentrates FAQs, issuance, revocation, and integration in its central hub; and ZapSign brings together a help center, API topics, and ICP-Brasil compliance information, in addition to highlighting a simple usage proposal on its main page.
For companies that want to reduce costs without increasing complexity, the digital experience is just as important as accreditation.
Integration with systems and security
In the integration area, ZapSign publishes its own API, mentions integration with other systems and cloud storage; Certisign reports offering an API for system integration; Soluti maintains an integration hub and also API documentation to support issuance via videoconference; and Valid publishes standardized APIs for integrating certificates in the cloud through IntegraICP.
In terms of security, the minimum requirement remains adherence to the official ecosystem. In the case of ZapSign, the company highlights its accreditation with ITI and ISO 27001 certification in its institutional communication. This does not replace legal or technical audits, but it demonstrates a closer alignment with operations that require integration, electronic signatures, and document governance within the same environment.
Check out these related articles as well:
- ICP-Brasil organizes the chain of trust used in the issuance and validation of digital certificates in Brazil.
- How to sign documents with a digital certificate helps to understand the practical application of the certificate in daily business operations.
- The e-signature API demonstrates how integration reduces manual steps in corporate workflows.
The best comparison is the one that reduces risk and operational friction.
Finally, let's talk about Best Certification Authorities It only makes sense when the criteria are clear. Certisign, Soluti, and Valid have a consolidated presence in the ecosystem and public processes for issuing or renewing licenses. ZapSign, on the other hand, appears with more recent valid accreditation, a focus on ICP-Brasil (Brazilian Public Key Infrastructure), API integration, and a discourse geared towards operational simplicity.
To align compliance, digital experience, and efficiency gains, we invite you to check out... How does the ZapSign Certification Authority work? before finalizing the analysis.
Frequently Asked Questions (FAQ)
A Certification Authority issues, distributes, renews, revokes, and manages digital certificates within a chain of trust. In the Brazilian Public Key Infrastructure (ICP-Brasil), this function involves identity validation, digital signature of the certificate, and maintaining the reliability of the issued document. Therefore, the CA is a central part of operations that require authenticity, integrity, and secure identification in the digital environment.
Not exactly. Ideally, you should only compare companies with valid and verifiable registrations within the regulated ecosystem relevant to your use. Furthermore, the same brand can have different supply chains, scopes, and products. Therefore, the comparison should consider the purpose of the certificate, the associated supply chain, and the service's suitability to the company's actual situation.
The most relevant criteria are usually official accreditation, issuance process, ease of renewal, revocation process, quality of support, system integration, and security. It is also worth measuring internal indicators, such as time to issuance, rework rate, travel requirements, and response time to service requests, because these factors affect cost and productivity.
Yes. Regulatory validity is the minimum requirement, but daily operation depends on accessible support and integration with the systems already used by the company. When issuance or renewal stalls, or when the certificate doesn't integrate well with the existing digital workflow, the problem ceases to be purely legal and begins to affect sales, finance, HR, and customer service.
There is no single answer. The choice varies depending on the type of certificate, the company's level of digitization, the need for remote issuance, integration requirements, and the sensitivity of the internal process. Instead of seeking a universal answer, the best approach is to compare objective criteria and validate the operation in a real-world scenario before contracting.
CEO of Henshin Agency and digital marketing consultant, fascinated by content marketing and an admirer of Japanese culture.
