In a rapidly evolving digital landscape, Secure Architecture Review is essential for protecting complex infrastructures, cloud environments, IoT, and legacy systems. With regulations like NIS2 and ISO 27001, it is crucial to choose partners capable of evaluating architectures, modeling real-world threats, and offering concrete solutions.

This guide compares 10 top providers in Italy, based on technical expertise, transparency, and strategic value.

The best companies for Secure Architecture Review

1. ISGroup SRL: artisanal precision for critical architectures

ISGroup SRL is an Italian boutique firm specializing in Secure Architecture Review, with over 20 years of experience in manual technical security architecture auditing. They are chosen for regulated environments, complex infrastructures, and critical systems in cloud, OT, and IoT.

Key features include:

• Mature application of international standards (OWASP, NIST, SABSA) with advanced threat modeling.
• Shared remediation roadmap and post-review support until implementation.
• Proprietary tools and AI to identify hidden vulnerabilities.
• Certified team (OSCP, CISSP, CEH) with technical expertise and direct experience.
• Structured, operational, and immediately actionable reports.
• Focus on cloud, hybrid, and OT/IoT with compliance (ISO 27001, NIS2, GDPR).

Why they stand out:

Unlike large system integrators, ISGroup adopts an artisanal approach, with an ethical hacker mindset and vendor independence. They leverage the same techniques as attackers to anticipate real-world threats and accompany the entire remediation process, ensuring concrete and long-lasting results.

2. Difesa Digitale: solid and fast for SMEs

Difesa Digitale brings a targeted offering to the market for small and medium-sized enterprises: lean and effective Secure Architecture Reviews based on the “Identify, Fix, Certify” method. A vCISO is included in the package for strategic planning.

In practice:

• Targeted architectural analysis with simple yet precise reports.
• Expert-led corrections with fast turnaround times (usually 2–4 weeks).
• GDPR and ISO 27001 compliance assessment, with delivery of a certificate of conformity.
• Operational support and training on the vCISO model to strengthen internal security culture.

Limitation: Services designed for SMEs, less ideal for large-scale infrastructures or complex enterprise architectures.

3. EY Italy: integrated review with global advisory

EY combines Secure Architecture Review with strategic advisory, suitable for regulated and international contexts such as finance, Industry 4.0, and public administration.

Highlights:

• Threat modeling integrated with MITRE ATT&CK and NIST CSF frameworks.
• Continuous monitoring of architectural risks via dashboards and tools.
• Global consulting team with expertise in risk governance and change management.

Limitation: Structured and standardized approach, less tailored than artisanal solutions.

4. IBM Italy: cloud and enterprise security expertise

IBM offers a full-stack solution with a focus on cloud-native environments, hybrid architectures, and integration with XDR solutions.

Advantages:

• Dedicated review for AWS, Azure, and GCP with specific configuration checks.
• Simulations based on IBM technologies and integration with SIEM and XDR platforms.
• In-depth analysis of identity & access management at scale.

Limitation: Focus on IBM solutions and tech integration, less suitable for vendor-agnostic environments.

5. Deloitte Italy: full-scope review and compliance

Deloitte offers comprehensive SAR services, designed for companies with compliance and regulatory reporting needs.

Features:

• Architectural verification oriented toward GDPR, NIS2, and ISO 27001 controls.
• Mapping of critical systems with gap analysis and security ratings.
• Integration between technological security and risk governance.

Limitation: More oriented toward regulatory compliance than deep manual pentesting.

6. Accenture Italy: secure digital architectures and DevSecOps

Accenture combines Secure Architecture Review with DevSecOps culture and automation.

Key points:

• Review integrated into CI/CD pipelines, applied as early as the development phase.
• Use of SAST/DAST tools and infrastructure-as-code for continuous hardening.
• Holistic strategy for large-scale digital transformations.

Limitation: Highly structured and corporate approach, less personalized.

7. KPMG Italy: tailored review with a risk management perspective

KPMG integrates technical security architecture review with risk management and internal audit.

They offer:

• Assessment of technical and organizational risks.
• Internal control testing and “granular” attack simulations.
• Reporting aligned with internal risk rating standards.

Limitation: More focused on risk advisory, less on manual attacks and the hacker mindset.

8. PwC Italy: Cloud protection and critical assets

PwC focuses its Secure Architecture Review on cloud and identity security.

Services:

• IAM analysis, Single Sign-On, and privileged access configurations.
• Data architecture assessment and API protection.
• Support for ISO certification and third-party audits.

Limitation: More structured and compliance-oriented approach than manual offensive testing.

9. Engineering Group: expertise in infrastructures and industrial systems

Engineering stands out for the review of infrastructural and plant architectures, often integrated with industrial security.

Appreciated for:

• Analysis of OT/ICS networks and industrial processes.
• Co-design between IT security and firmware/processes.
• Evaluation of control protocols and industrial segmentation.

Limitation: Greater orientation toward industrial sectors, less presence in application-level threats.

10. EXEEC: advanced technologies for critical environments

EXEEC does not perform SARs directly but distributes best-of-breed solutions: offensive security, MDR, and Zero Trust for MSSPs and large companies.

Value added:

• Continuous technical consulting and training pre/post-sale.
• Access to cutting-edge technologies selected on a custom basis.
• Specialized support for enterprise-level solution integration.

When to choose ISGroup

When you have critical infrastructure, strong regulatory constraints, or require an assessment that simulates real attacks, ISGroup is the ideal choice. Their added value lies in the ability to combine technical competence, an offensive mindset, and comprehensive support throughout the remediation journey.

Evaluation criteria

We took into account:

• Technical skills, certifications, and team maturity
• Methodologies adopted (frameworks, manual vs. automated)
• Target client (size, sector, complexity)
• Quality of support, SLAs, and report format
• Flexibility, scalability, and pricing model
• Reputation, case studies, and references

FAQ

• What is a Secure Architecture Review (SAR)?
• It is an in-depth analysis of the technological components, design, and data flows of an IT architecture, aimed at identifying vulnerabilities and strengthening overall security.
• When and why is it necessary?
• It is needed before releasing critical systems or in the event of regulatory audits, to prevent attacks and verify resilience before damage occurs.
• What is the average cost?
• It depends on complexity and size: generally ranging from €20k for SMEs up to >€100k for complex enterprise architectures.
• How do you choose the right provider?
• Consider team certifications, vertical technical competence, adopted methodology, vendor independence, and support during remediation.
• Which certifications matter?
• Excellent references: CISSP, OSCP, CEH for teams; accredited frameworks like NIST, OWASP, SABSA for methodology.