Let me save you the search. We have managed ISO 27001 certification processes for companies of various sizes in Spain, and the price ranges circulating online tend to be either too vague or simply useless for making an actual decision.
This guide has real numbers. If you need a specific quote for your company at the end, there is a form below.
Cost summary: how much does ISO 27001 cost in Spain?
Before getting into the detail, here are the indicative ranges by company size:
| Company size | Year 1 total cost | Annual maintenance | Estimated timeline |
|---|---|---|---|
| 10-50 employees | EUR 15,000 - 35,000 | EUR 5,000 - 10,000/year | 6-9 months |
| 50-200 employees | EUR 25,000 - 55,000 | EUR 8,000 - 18,000/year | 9-14 months |
| 200-500 employees | EUR 40,000 - 85,000 | EUR 15,000 - 30,000/year | 12-18 months |
| 500+ employees | EUR 70,000 - 150,000+ | EUR 25,000 - 60,000+/year | 18-24 months |
Note on FUNDAE: The training line item (EUR 3,000-12,000 in these ranges) can be fully or partially covered by the company's FUNDAE training credit. For many SMEs, this significantly reduces the real out-of-pocket cost. We explain how below.
What the ISO 27001 certification process includes
ISO 27001 certification is not a one-off exam. It is external verification that your company has implemented a functional and mature Information Security Management System (ISMS). That involves several work streams:
- Gap analysis. Assessment of your starting point: what controls you already have, what is missing and how much needs to be built from scratch.
- ISMS scope definition. Deciding which systems, processes and assets fall within the certification perimeter. This directly affects cost: broader scope means more work.
- Risk analysis. Identifying critical assets, threats, vulnerabilities and potential impact. This is the backbone of the ISMS.
- Control implementation. Annex A of ISO 27001 lists 93 organisational, people, physical and technological controls. Not all are mandatory — only those relevant to your risk analysis.
- ISMS documentation. Policies, procedures, records, incident response plans. The volume of documentation often surprises first-time certifiers.
- Training and awareness. All staff must know the security policies. Roles with specific responsibilities need specialist training.
- Internal audit. Before the certification audit, at least one internal audit must verify the ISMS functions as documented.
- Certification audit (Stage 1 + Stage 2). The certifying body (Bureau Veritas, SGS, TUV, AENOR, etc.) conducts two audits: documentary review and on-site audit.
Detailed cost breakdown
Line by line for a reference company of 80 employees in the technology or healthcare sector:
| Line item | Range (80-person company) | Notes |
|---|---|---|
| Implementation consultancy | EUR 18,000 - 30,000 | Gap analysis, ISMS design, documentation, support through certification |
| Certification audit (Stage 1) | EUR 1,500 - 3,000 | Documentary review by the certifying body |
| Certification audit (Stage 2) | EUR 4,000 - 9,000 | On-site audit. Price varies by certifier and scope |
| Staff training | EUR 3,000 - 8,000 | Eligible for FUNDAE subsidy. Includes general awareness + specialist ISMS training |
| ISMS tools | EUR 2,000 - 6,000/year | Document management, risk and compliance software. Optional but recommended |
| Internal team time | No direct monetary cost | Estimate 200-400 hours of internal staff involvement over the project |
Hidden cost to factor in: Internal team time. An ISO 27001 project requires real involvement from IT, legal, operations and management leads. That opportunity cost does not appear on the consultant's invoice, but it exists. Plan for it before you start.
Factors that move the price
These are the elements that generate the most variation in an ISO 27001 quote:
If you only certify one department or business line, scope is limited and cost is lower. Certifying the whole company pushes it up. Most SMEs certifying for the first time define a limited scope to control costs and timelines.
If you already have security controls in place (firewalls, access management, documented policies, backups), the gap analysis reflects that and the consultancy effort is smaller. Starting from scratch means significantly higher implementation costs.
Companies in healthcare, pharma, finance or public administration handle sensitive data that increases the number of required controls. Risk analysis is more complex and documentation requirements are more demanding.
Audit prices vary between certifiers. AENOR, Bureau Veritas, SGS and TUV SUD are the most common in Spain. Get quotes from several before deciding. Differences can reach EUR 2,000-3,000 for the same audit.
More systems, more servers, more cloud providers: more controls to implement and document. A company with simple infrastructure takes less time and costs less than one with distributed architecture and multiple providers.
How long does certification take?
The most common mistake is underestimating the timeline. These are the real benchmarks:
The two phases that run longest in practice are control implementation (especially if infrastructure changes are needed) and generating evidence for the audit. It is not enough to document what you plan to do — you need to demonstrate you have been doing it consistently over time.
How to reduce costs with FUNDAE
Training in cybersecurity is one of the most expensive line items in the ISO 27001 process — and also one that many companies overpay for unnecessarily.
FUNDAE vocational training credits cover cybersecurity and IT risk management courses. This includes:
- Information security awareness training for all staff
- ISO 27001 internal auditor training
- ISMS management courses for the responsible team
- Risk analysis and regulatory compliance training
A company with 80 employees and average salaries has between EUR 4,000 and EUR 8,000 in available FUNDAE credit per year. In many cases, that covers all of the training needed for certification.
Quick calculation: Your company accumulates FUNDAE credit based on its payroll and sector. The minimum is 0.6% of the monthly social security training contribution. A company of 80 employees with an average salary of EUR 30,000/year has approximately EUR 5,600-7,200 in annual FUNDAE credit. That money expires on 31 December if unused.
At Delbion we manage the FUNDAE subsidy application for the training included in the certification process. The client does not need to handle any paperwork: we file the training action with FUNDAE and apply the subsidy directly to the cost.
ISO 27001 and NIS2: how they relate
A lot of confusion in the market on this. To clarify:
ISO 27001 is a voluntary international standard. You get certified because you want to (or because clients or contracts require it). There are no penalties for not having it, but you cannot access certain public contracts or demanding clients without it.
NIS2 is a mandatory EU directive for entities in critical sectors (healthcare, energy, finance, digital infrastructure, etc.). In Spain it is still being transposed into national law, but when it comes into force, non-compliance penalties can reach EUR 10 million or 2% of global turnover.
The good news: having ISO 27001 significantly accelerates NIS2 compliance. They share the vast majority of technical and organisational controls. A company with ISO 27001 already has most of what NIS2 will require. They are not equivalent, but the overlap is substantial.
For companies in critical sectors, the optimal strategy is: get ISO 27001 certified now and adapt the ISMS for NIS2 when the Spanish transposition is finalised. One process instead of two.
Free cybersecurity maturity assessment
If you want to know where your company stands on ISO 27001 and NIS2 before committing to any process, we offer a no-cost initial assessment. We give you a basic gap analysis and an indicative budget in the same session.
Request free assessmentFrequently asked questions
How much does ISO 27001 certification cost?
For a company of 50-200 employees in Spain, the typical range in year one is EUR 25,000 to EUR 55,000. That covers implementation consultancy, certification audit, training and tools. Training (EUR 3,000-8,000) can be covered with FUNDAE credits. Annual maintenance thereafter usually runs EUR 8,000-18,000.
How long does the full process take?
Between 9 and 14 months for most mid-size companies. If you already have security controls in place, you may hit the 6-9 month range. Starting from scratch on infrastructure and documentation, 12-18 months is realistic.
Can ISO 27001 training be subsidised with FUNDAE?
Yes. Both general security awareness and specialist training (internal auditors, ISMS management) are eligible. If the company manages its FUNDAE credit well, the training line item can come out at zero cost.
Do I need external consultancy?
It is not mandatory, but doing it internally without prior experience usually costs more time and money in the long run. An experienced consultant reduces the risk of failing the audit and speeds up implementation. For companies under 200 employees, the cost-benefit of external consultancy is positive.
Are ISO 27001 and NIS2 the same?
No. ISO 27001 is voluntary; NIS2 is mandatory compliance for critical sectors. But they complement each other well: having ISO 27001 covers most of what NIS2 will require when it comes into force in Spain.