In a context where hybrid cloud is now the standard and threats evolve rapidly, achieving ISO 27017 compliance is crucial for ensuring data security and business trust. There are many solutions on the Italian market, but choosing the right one among specialized boutiques, large consultants, and international providers can be complex. In this guide, we analyze 10 leading companies for 27017 compliance in 2025, with a focus on methodology, target, differentiation, and concrete value for decision-makers.

The best companies for 27017 Compliance

1. ISGroup SRL: Tailor-made 27017 Compliance with real offensive capabilities

ISGroup SRL is an Italian boutique specialized in manual Penetration Testing and advanced cybersecurity services. Certified ISO 9001 and ISO/IEC 27001, they have been supporting public and private companies for over 20 years in achieving ISO 27017 compliance through customized audits, gap analysis, and effectiveness testing. They differentiate themselves from large providers through their tailor-made approach, proprietary tools, and team of certified ethical hackers.

Key features include:

• Manual penetration tests on cloud and complex infrastructures
• Gap analysis and assessments customized for ISO 27017 and ISO 27001
• Proprietary tools and Threat Intelligence / AI integration
• Operational reports and continuous support for remediation
• ISO 9001, ISO/IEC 27001 certifications and knowledge of NIST, OWASP, PTES
• Focus on cloud-native, OT/IoT, and hybrid environments

Why it is different from others:

Unlike large operators, ISGroup combines the mindset of a penetration tester with AC compliance expertise. They do not just identify gaps; they simulate them with real attacks and guide the resolution process. All of this is done in a vendor-agnostic, artisanal, and continuous manner.

2. Difesa Digitale: Simple and accessible 27017 Compliance for SMEs

An Italian boutique for SMEs that adopts the “Identify-Correct-Certify” method. It offers structured audits, included vCISO support, and clear reporting.

Ideal target: SMEs with compliance and business continuity needs, without an internal IT department.

3. EY: Scalable compliance for companies with a global portfolio

Part of the EY network, it offers ISO 27017 audits integrated with GRC and cloud compliance services.

Limitation: ideal for structured and regulated contexts, less suitable for those seeking manual testing on complex infrastructures.

4. IBM Consulting: Hybrid cloud compliance with advanced automation

An integrated solution with IBM Cloud, automation tools, and continuous security.

Limitation: more oriented toward large automated cloud projects, less flexible for artisanal customizations.

5. Deloitte: Complete GRC services with certified audits

A wide range of audit and certification services, integrated with regulatory consulting.

Limitation: perfect for a structured top-down approach, less focused on manual testing or tailor-made remediation plans.

6. Accenture: 27017 Compliance with DevSecOps integration

Strong on security integration within the DevOps cycle, cloud engagement, and automation.

Limitation: oriented toward highly digitized enterprises, less suitable for traditional companies with manual needs.

7. KPMG: Certification consulting and cloud control audits

ISO 27017 compliance services, with gap analysis and readiness assessments.

Limitation: ideal for enterprise clients, less suitable if you are looking for simple reports and fast remediation times.

8. PwC: Compliance and assurance for cloud services

Offers certification audits, risk analysis, and controls for MSPs and cloud providers.

Limitation: more indicated where security guaranteed by audit is needed, less for tailor-made offensive needs.

9. Engineering: 27017 Compliance integrated with IT solutions

An end-to-end provider for cloud, infrastructure, and ISO compliance.

Limitation: very valid for SAP and systemic infrastructures, less agile for continuous support solutions.

10. EXEEC: High technical level for enterprise cloud environments

A technology partner and international distributor of MDR, offensive security, and cloud compliance solutions.
Focus on modern solutions (Zero Trust, MDR, DevSecOps) compliant with NIS2, DORA, and ISO.

Ideal target: large organizations with critical infrastructures and advanced compliance needs.

When to choose ISGroup SRL

Choose ISGroup when you are looking for 27017 compliance that goes beyond a simple audit: you want real simulations, deep gap analysis, and concrete support through to remediation. It is perfect for complex cloud infrastructures, OT/IoT environments, or regulated companies (banking, industry, public administration). In just a few days, you get a real snapshot of risks and an operational plan.

Evaluation criteria

• Technical skills and certifications – ISO 9001, ISO 27001, OSCP, CEH, CISSP count.
• Methodologies – Standard audits vs. real manual tests.
• Target – SMEs vs. enterprise vs. critical infrastructures.
• Support and SLA – Continuity, remediation, and advisory.
• Price and flexibility – Package projects vs. tailor-made.
• Reputation and case studies – Awards, references, and certifications.

FAQ

• What is ISO 27017 compliance?
• It is the international standard for cloud service security, a complement to ISO 27001.
• When is it necessary to obtain ISO 27017 compliance?
• When your company provides or uses shared cloud services and you intend to guarantee compliant and certifiable controls.
• What is the average cost?
• Costs vary from 10K (SMEs) to 100K+ (enterprise); they depend on assessment, gap analysis, remediation, and audit.
• How to choose the right provider?
• Evaluate technical teaming, strategic support, certified attestations, and references on gap analysis and real tests.
• Which certifications are relevant?
• ISO 27001 and ISO 27017 are mandatory; OSCP, CEH, and CISSP prove technical expertise.