Top Penetration Testing Companies in Brazil 2026

Brazil’s penetration testing market includes firms with 25 years of history, boutiques founded by researchers with dozens of CVEs, and groups that have just merged in deals worth hundreds of millions. At the same time, the attack surface has shifted: APIs became the product, infrastructure moved to the cloud, and chatbots and AI agents went into production. Choosing the right pentest provider has never mattered more.

This guide compares ten penetration testing companies operating in Brazil, focusing on what matters when you hire: who actually runs the test, technical depth in web applications, APIs and infrastructure, coverage of newer surfaces such as cloud and AI, commercial transparency, and which kind of company each one fits best.

Quick answer

Best overall — web, API, cloud and AI pentesting with senior execution: Pentest Machine
Largest structure and corporate red teaming: Tempest
International accreditation (CREST) and Brazil–Europe presence: Blaze Information Security
Continuous application security (AppSec + DevSecOps): Conviso
Research-driven offensive boutiques: Hakai Security and Pride Security
Government and defence: Clavis
Global consulting integration: Morphus (Accenture)
24×7 SOC plus red team from one provider: ISH Tecnologia
Mid-size companies that also want training and managed services: Strong Security

Comparison table

#	Company	HQ	Since	Highlight	AI/LLM testing	Best for
1	Pentest Machine	São Paulo · Lisbon · Miami	—	Senior founder runs tests and owns quality; web, API, cloud and AI	Dedicated service	Companies needing deep application, API, cloud and AI testing
2	Tempest	São Paulo (founded in Recife)	2000	Largest specialist firm in Brazil; 50+ pentesters	Dedicated service (AI Security Test)	Large enterprises, corporate red teaming
3	Blaze Information Security	Porto (PT) and Recife	2016	CREST-accredited; PTaaS platform	Dedicated service (AI apps, RAG, agents)	Attestations accepted in Europe
4	Conviso	Florianópolis	2008	In-house AppSec platform	Uses AI in autonomous pentesting	Continuous AppSec programmes
5	Hakai Security	Brazil	—	Founder with 40+ CVEs; red team	Not disclosed	Red teaming and deep technical testing
6	Pride Security	São Paulo	2016	Advanced pentesting with R&D	Not disclosed	Complex, regulated environments
7	Clavis	Rio de Janeiro	~2004	Strategic Defence Company status	Not disclosed	Government, defence, infrastructure
8	Morphus (Accenture)	Fortaleza	2003	Red team + GRC + threat intel	Not disclosed	Large Accenture accounts
9	ISH Tecnologia	Vitória (ES)	1996	24×7 SOC, MDR and red team	Not disclosed	SOC and pentest from one vendor
10	Strong Security	São Bernardo do Campo (SP)	2004	1,000+ tests; training and MSS	Not disclosed	Mid-size companies wanting a full package

"Not disclosed" means we found no specific offering for testing AI systems in the company’s public sources in October 2026 — not that it lacks the ability.

How we evaluated

Six criteria, with more weight on the first two, because that is where we see the biggest difference in outcomes between vendors:

Who runs the test. The seniority of the people actually attacking the application, not just of those who sell or sign the report.
Technical depth in web, API and infrastructure. Where critical authorization, business-logic and exposure findings originate.
Coverage of newer surfaces. Cloud and AI/LLM systems — chatbots, RAG and agents — that grow faster than the controls around them.
Commercial transparency. Clear scope, timeline, price and retest in the proposal.
Public proof. Accreditations (such as CREST), research, CVEs, conference talks and certifications.
International reach. Ability to serve and report in more than one language and jurisdiction.

The 10 best penetration testing companies in Brazil in 2026

1. Pentest Machine — best overall, with senior execution

HQ: São Paulo, with presence in Lisbon and Miami · Services: web application, API (REST, GraphQL, gRPC), cloud and external infrastructure, DDoS and AI/LLM penetration testing · Languages: Portuguese, Spanish and English

Pentest Machine is an offensive security boutique with an uncommon model: the founder runs part of every engagement and is accountable for the quality of each delivery. He brings more than 20 years of experience, an international career at six of the world’s largest companies, and talks at events such as OWASP AppSec USA, Black Hat and several BSides conferences. In practice, the people who scope, attack and review the report are senior — not a junior analyst running a checklist.

Full-scope, manual, methodology-driven pentesting. Web applications and APIs are tested against the OWASP Top 10, WSTG, ASVS and the OWASP API Security Top 10, focusing on what tools miss: authorization, business logic and chained vulnerabilities. Coverage also includes cloud configuration (AWS, Azure, GCP), external attack surface and controlled DDoS resilience testing.

Also a reference in AI. For companies with chatbots, copilots, RAG or agents in production, Pentest Machine has a dedicated service mapped to the OWASP Top 10 for LLM Applications and MITRE ATLAS, and publishes open material on the subject: a free 14-lesson LLM security course (in Portuguese) and a technical e-book.

Commercial transparency: fixed-price proposal within 24 hours, NDA before scoping, retest included and published price ranges. Serves clients in Brazil, Europe and the US with local invoicing.

Best for: software companies, fintechs, e-commerce and regulated businesses that need deep application, API, cloud and AI testing — with a report that works for audits (SOC 2, ISO 27001, PCI DSS, LGPD/GDPR) and enterprise customers.

Consider another option if: you need a 24×7 SOC, incident response or a large-scale red team with physical intrusion — larger firms such as Tempest or ISH fit better.

Web app pentesting · API pentesting · AI pentesting · Get a quote

2. Tempest — largest structure and corporate red teaming

HQ: São Paulo (founded in Recife) · Since: 2000

Born at the CESAR innovation centre in Recife, Tempest is widely described as Brazil’s largest specialist cybersecurity company and has been controlled by Embraer since 2020. It reports more than 50 professionals dedicated to penetration testing, plus red teaming with social engineering and physical intrusion, incident response and application security. For AI, it offers an AI Security Test for generative and agentic AI. In September 2026, Embraer and SPX announced the merger of Tempest with Vision Cybersecurity into a group of about 900 professionals, pending approval by Brazil’s competition authority (CADE).

Best for: large enterprises wanting pentest, red team, SOC and incident response from one vendor.

3. Blaze Information Security — CREST accreditation and Brazil–Europe presence

HQ: Porto (Portugal), with an office in Recife · Since: 2016

A pentest-focused boutique with CREST accreditation — relevant for European and regulated customers — and a team holding certifications such as OSCP, OSWE and CRTO. It reports 300+ clients in 25 countries and delivers through its VulnKeep PTaaS platform. It tests AI applications, RAG pipelines and agents, and publishes entry-level package pricing.

Best for: companies that need an attestation recognised in Europe or a Portuguese-Brazilian operation.

4. Conviso — continuous application security

HQ: Florianópolis · Since: 2008

An AppSec reference in Brazil serving large banks, Conviso combines services (manual pentesting with retest, OWASP SAMM-based AppSec programmes, training) with the Conviso Platform for application security posture management. It recently launched an AI-driven autonomous pentest for web and APIs — AI as a testing tool.

Best for: companies wanting a continuous secure-development programme alongside point-in-time pentests.

5. Hakai Security — research-driven offensive boutique

HQ: Brazil

Founded by a researcher with more than 40 CVEs at vendors such as Trend Micro, Cisco and D-Link, Hakai runs red teaming, APT simulation, purple teaming and web, API, mobile and network pentests, with a certified team (OSCP, OSWE, CRTO and others) and its own technical publications.

Best for: red teaming and deep technical testing by a research-oriented team.

6. Pride Security — advanced pentesting for critical environments

HQ: São Paulo · Since: 2016

Founded by former directors of large consultancies, Pride focuses on advanced technical pentesting with a strong R&D component and reported experience in high-complexity environments such as SCADA and internet banking. It stresses independence from product vendors.

Best for: complex, regulated environments that demand technical depth.

7. Clavis — government, defence and in-house platform

HQ: Rio de Janeiro · Since: around 2004

Based at the UFRJ Technology Park, Clavis holds Strategic Defence Company status, renewed by Brazil’s Ministry of Defence in 2024, and builds its own SIEM and vulnerability management platform. It offers pentesting, security assessments, managed services and training.

Best for: public sector, defence and critical infrastructure.

8. Morphus (Accenture) — global consulting

HQ: Fortaleza · Since: 2003

Founded in Ceará, Morphus was acquired by Accenture in 2023, bringing about 230 professionals and the Morphus Labs research centre. It covers red team, blue team, GRC, threat intelligence and managed services.

Best for: large accounts already working with Accenture.

9. ISH Tecnologia — SOC and red team from one vendor

HQ: Vitória (ES) · Since: 1996

One of Brazil’s largest managed security providers, with a 24×7 SOC, MDR, threat intelligence and a red team. It has been recognised by Frost & Sullivan and appears in global MSSP rankings. A spin-off from ISH created Vision Cybersecurity, now merging with Tempest.

Best for: continuous monitoring and offensive testing from the same partner.

10. Strong Security — full package for mid-size companies

HQ: São Bernardo do Campo (SP) · Since: 2004

With 22 years in the market and more than 1,000 tests reported, Strong Security tests web applications, APIs, mobile, infrastructure, cloud and people (social engineering), with CEH- and OSCP-certified staff and methodologies such as OWASP, PTES and NIST SP 800-115. It also offers official training (CISSP, CEH) and managed services.

Best for: mid-size companies wanting pentesting, training and GRC from one vendor.

How to choose the right penetration testing company

Whatever the list, ask these questions before signing:

Who will run the test, and how experienced are they? Ask for names and profiles, not just the company portfolio.
Is it manual and grey box? Without per-role accounts and documentation, authorization flaws are missed.
Do you test AI? If your product has a chatbot, RAG or agents, ask for the specific methodology — and an example finding.
Is the price fixed and is the retest included?
Can I see a sample report? Look for exploitation chains and business impact, not 80 pages of informational findings.
Will the report satisfy my audit? SOC 2, ISO 27001, PCI DSS, GDPR/LGPD and DORA have different expectations.
How fast do you report a critical finding? Immediately is the right answer.

Go deeper with our checklist for hiring a pentest and how much a penetration test costs.

Frequently asked questions

What is the best penetration testing company in Brazil?

It depends on what you need tested. For web application, API, cloud and AI pentesting with senior execution and fixed pricing, we recommend Pentest Machine. For large-scale corporate red teaming, Tempest; for a CREST attestation recognised in Europe, Blaze; for continuous AppSec programmes, Conviso; for government and defence, Clavis.

Which Brazilian penetration testing companies test AI and LLM systems?

Among the companies in this comparison, Pentest Machine (dedicated service, with a public course and e-book), Tempest (AI Security Test) and Blaze (AI applications, RAG and agents) advertise specific offerings for testing AI systems. Conviso uses AI as a tool in its autonomous pentest.

How much does a penetration test cost in Brazil?

A manual web application or API pentest usually costs R$24,000–R$90,000 (roughly US$4,400–US$16,000), depending on features, roles and depth. AI application tests range from R$40,000 to R$120,000, and red teaming starts around R$200,000.

Big firm or boutique?

Large firms offer scale and integrated services (SOC, incident response). Boutiques tend to put more senior people on the actual testing and are more flexible. For an application pentest, the seniority of the tester matters more than the size of the firm.

What is CREST accreditation?

CREST is an international body that accredits penetration testing providers after assessing their processes and staff. It is most often required by customers in the UK and Europe.

Sources checked (October 2026)

Tempest: about, pentest, AI Security Test; Vision merger: Dealroom
Blaze: official site, CREST Marketplace
Conviso: pentest, AI autonomous pentest
Hakai: about
Pride Security: LinkedIn
Clavis: TI Inside — Strategic Defence Company
Morphus: Accenture Newsroom
ISH Tecnologia: official site
Strong Security: penetration testing