ISO 27001 consultancy
ISO 27001 Consultant for Certification-Ready Security Programs
Customers want proof your security program is managed, not improvised. Our ISO 27001 consultants scope your ISMS, run the risk assessment, implement the controls, and stand with you through Stage 1 and Stage 2. Then we keep it running for surveillance audits.
- An ISMS scoped to how you operate. Clear scope and gaps ranked by priority.
- Controls your team can actually run. Annex A controls chosen by risk, not templates.
- An audit that is not a fire drill. We stand with you through Stage 1 and Stage 2.
Free ISO 27001 consultation
Talk with an ISO 27001 consultant.
30 minutes with a senior practitioner. Bring the customer requirement, your audit date, or the ISMS you already have.
Major nonconformities. DropStream had no internal GRC expertise and could not pull engineers off the product. We scoped the ISMS to their AWS environment, co-designed the controls, ran the internal audit, and stood with them through Stage 1 and Stage 2.
Read the DropStream case studyFor dual internal audits, with certification already scheduled. We kicked off within 24 hours, audited both standards concurrently, and delivered a corrective action plan for every nonconformity. Strider certified on schedule, first time.
Read the Strider case study“Nexeris took the time to really understand where we were as an organization first, then met us exactly where we were.”
We put our money on the line. Almost nobody else will.
Three written commitments in every engagement, at no additional cost. Contract language, not marketing language.
Complete the corrective actions we identify. If you still do not pass, you get a refundable credit of up to $10,000.
Book a Free ISO 27001 ConsultationWe start work within 24 hours of signing, or we credit you $1,000. No onboarding queue.
Cancel anytime with 30 days' notice. No cancellation fees. You stay because the work is good.
Guarantee terms are written into every engagement agreement. The Audit Victory Guarantee applies where the corrective actions we identify are completed as specified.
How Our ISO 27001 Consulting Process Works
Six steps from the first call to certification, and an ISMS that keeps improving after it.
Understand Your Organization and Scope the ISMS
Business objectives, certification drivers, current maturity, technology, and customer requirements. Then the scope: units, systems, locations, and assets.
Assess ISO 27001 Readiness
A structured gap assessment of what already exists versus what has to be built. You get a prioritized implementation roadmap.
Assess and Treat Risk
Risk register, risk treatment plan, and Statement of Applicability, built on a methodology you can repeat every year.
Implement the ISMS
Policies, processes, and controls put into operation. The goal is an ISMS that runs inside the business, not a binder of documents.
Audit and Validate
Internal audit and management review confirm the ISMS meets the standard, operates as documented, and has the evidence to prove it.
Support Certification and Continual Improvement
Stage 1 and Stage 2 preparation and support, nonconformity remediation, then surveillance audit readiness.
ISO 27001:2022 and Annex A Controls
ISO/IEC 27001:2022 sets the requirements for your ISMS. Annex A lists 93 controls in four themes. You apply the ones your risk treatment calls for and record why in the Statement of Applicability, using ISO/IEC 27002 as implementation guidance.
Organizational
Policies, roles, asset management, supplier security, incident management, and continuity.
People
Screening, awareness and training, disciplinary process, and remote working.
Physical
Secure areas, equipment protection, clear desk, and media handling.
Technological
Access control, encryption, logging, vulnerability management, and secure development.
Preparing for the ISO 27001 Certification Audit
Stage 1
The certification body checks that your ISMS is designed and documented well enough to proceed: scope, risk assessment, Statement of Applicability, internal audit, and management review.
We prepare the documentation set and walk your team through what the auditor will ask.
Stage 2
The auditor tests whether the ISMS and controls operate in practice, through records, interviews, technical controls, and corrective actions. Certification then runs on a three-year cycle with surveillance audits.
DropStream passed both stages with zero major nonconformities.
Not sure how ready you are for Stage 1? Talk with an ISO 27001 consultant.
Book a Free ISO 27001 ConsultationWho Needs ISO 27001 Consultancy Services?
SaaS and Technology Companies
Answering enterprise and international security requirements.
Managed Service Providers
Managing systems and data on behalf of clients.
Healthcare Organizations
Protecting sensitive patient and customer information.
Financial Services
Handling regulated financial data and partner due diligence.
Government and Defense Contractors
Pairing ISO 27001 with federal security obligations.
Professional Services Firms
Holding sensitive client data and facing vendor assessments.
When to Bring in an ISO 27001 Consultant
A Customer Requires Certification
An enterprise deal, partner, or tender now depends on ISO 27001.
You Have No ISMS Yet
Or your team has never implemented the standard before.
An Audit Date Is Set
Stage 1 or Stage 2 is booked and the gaps are still open.
Your Scope Is Expanding
New products, locations, or systems need to come into the certificate.
Maintenance Is Slipping
Surveillance or recertification is coming and the ISMS has drifted.
Why Choose Nexeris as Your ISO 27001 Consultant?
75+ ISO 27001 projects supported, led by certified ISO 27001 Lead Auditors and Lead Implementers who know what certification bodies look for.
Practical Implementation Support
We turn ISO 27001 requirements into policies, controls, processes, and evidence with your team, not a template pack.
Security and GRC Expertise
We connect your ISMS to the rest of your security, risk, and compliance work, including in defense environments.
A Business-Aligned ISMS
Built around your real risks and operations, so certification does not add process you do not need.
Certification Readiness
We know what certification bodies expect and find the gaps before they do.
Continued Support, Including Your GRC Platform
We keep the ISMS current as your business changes and can run your GRC platform. More on our GRC platform support.
ISO 27001 Consultancy Services Built Around Your Certification Goals
Whether you are starting from scratch, partway through an ISMS, closing audit findings, or maintaining a certificate, our ISO 27001 consulting services meet you at your stage. Running more than one framework? See our SOC 2 and HIPAA services.
ISO 27001 Gap Analysis
We assess your policies, processes, technical safeguards, governance, risk management, and evidence against ISO/IEC 27001, then rank what to fix first.
You keep: a prioritized gap assessment and certification roadmap.
ISMS Scope and Planning
We define the business units, systems, locations, assets, and dependencies in scope. Too narrow leaves risk uncovered. Too wide adds needless cost.
You keep: a documented ISMS scope and governance model.
Information Security Risk Assessment
Assets, threats, vulnerabilities, likelihood, impact, and residual risk, using a methodology you can repeat, not a one-time spreadsheet.
You keep: a risk methodology and risk register.
Risk Treatment and Statement of Applicability
Each risk gets a decision: reduce, avoid, transfer, or accept. The Statement of Applicability records which Annex A controls apply and why.
You keep: a risk treatment plan and Statement of Applicability.
Policies, Procedures, and ISMS Documentation
The documented information your ISMS actually needs, written to match how you operate. No two organizations need identical documents.
You keep: policies and procedures tailored to your environment.
Annex A Control Implementation
Controls selected by risk, contracts, and regulation across organizational, people, physical, and technological themes, using ISO/IEC 27002 guidance.
You keep: controls with named owners, running in daily work.
Internal Audit Preparation
We plan and run the internal audit, review evidence and control effectiveness, and turn nonconformities into corrective actions.
You keep: an internal audit report and corrective action plan.
Management Review and Certification Readiness
We prepare management review inputs, validate evidence, close remaining gaps, and stand with you through Stage 1 and Stage 2. An independent certification body issues the certificate.
You keep: management review records and audit representation.
Ongoing ISMS Support
Internal audits, risk reviews, management reviews, and control improvements between surveillance audits. Pair it with a virtual CISO for full program ownership.
You keep: a roadmap for surveillance audits and recertification.
How Long Does ISO 27001 Implementation Take?
There is no universal timeline. An organization with mature practices and existing documentation moves much faster than one starting from scratch. Timing depends on:
A gap assessment gives you a realistic ISO 27001 timeline for your organization.
How Much Does ISO 27001 Consulting Cost?
We do not publish fixed pricing, because scope drives the number. We scope it on the first call rather than quoting blind. Cost depends on:
ISO 27001 Support After Certification
Certification runs on a three-year cycle, not a one-time audit. This is the work that keeps surveillance audits routine.
Internal Audits and Management Review
Run on schedule, with findings tracked to closure through corrective action.
Risk and Documentation Updates
Risk assessment, Statement of Applicability, and policies kept current as systems and suppliers change.
Surveillance and Recertification
Evidence ready for each surveillance audit and for recertification at year three.
How DropStream runs ISO 27001 alongside daily development. Read the case study.
ISO 27001 Consultant FAQs
If yours is not here, ask it on the call. You will get a straight answer.
What does an ISO 27001 consultant do?+
An ISO 27001 consultant helps you build your ISMS and prepare it for certification: gap analysis, scope, risk assessment, policies, control implementation, internal audit, and Stage 1 and Stage 2 readiness.
What is included in ISO 27001 consultancy services?+
The full lifecycle: gap assessment, ISMS design, risk treatment, Statement of Applicability, documentation, implementation, internal audit, management review, certification preparation, and ongoing maintenance.
How long does ISO 27001 implementation take?+
It depends on scope, maturity, existing documentation, internal resources, and how much remediation is needed. A gap assessment gives you a realistic timeline.
How much does ISO 27001 consultancy cost?+
It depends on size, scope, locations, maturity, remediation effort, and how hands-on you need us to be. We scope it on the first call rather than quoting a fixed figure.
Can a consultant certify our organization?+
No. We help implement and prepare your ISMS, but certification is issued by an independent, accredited certification body. We are not the auditor.
What are Stage 1 and Stage 2 ISO 27001 audits?+
Stage 1 reviews whether your ISMS is designed and documented well enough to proceed. Stage 2 tests whether it is implemented and operating effectively in practice.
Do we need to implement every Annex A control?+
No. You select controls through risk treatment and applicability, and document each inclusion or exclusion in the Statement of Applicability.
What happens after ISO 27001 certification?+
Surveillance audits across a three-year cycle, supported by internal audits, management reviews, risk reviews, corrective actions, and continual improvement, then recertification.
Can ISO 27001 align with SOC 2 or other frameworks?+
Yes. Many controls overlap, so we align evidence and governance across frameworks to avoid duplicate work.
Free ISO 27001 consultation
Build an ISMS That Is Ready for Certification and Built to Last
Thirty minutes with a senior practitioner, wherever you are starting from:
- Starting ISO 27001 from scratch
- Partway through building your ISMS
- Preparing for Stage 1 or Stage 2
- Closing nonconformities from an audit
- Maintaining certification or expanding scope
