In this article we lay bare the top 10 ISO 27001 companies and the top 10 ISO 27001 certification bodies with guidance you must know before you engage with either and go for ISO 27001 certification. I am Stuart Barker the ISO 27001 Ninja and this is the ISO 27001 top 10 ISO 27001 companies.
Table of contents
- How to Find an ISO 27001 Certification Body
- What to look out for in an ISO 27001 company
- UK ISO 27001 Companies
- What to be wary of
- GET A QUOTE
- The 10 Best ISO 27001 Certification Bodies for 2026
- Top 10 ISO 27001 Companies for 2026
- Top 5 ISO 27001 Companies Compared: Value vs. Expertise (2026)
- Key Criteria for Vetting an ISO 27001 Consultant
- Why we believe High Table is the top choice
- ISO 27001 Certification Bodies FAQ
- ISO 27001 Certification Body Briefing Pack
How to Find an ISO 27001 Certification Body
We found this one of the hardest aspects of engaging an ISO 27001 company. Actually finding one.
Using Google, we found we were presented with those companies that had the most budget to spend on ads. This is a competitive market and a lucrative market. Dominating the Google ads comes with advantages for the ISO 27001 company but for the consumer we find that can translate into higher prices.
What to look out for in an ISO 27001 company
This will depend a lot on what your requirements are.
It is our experience that the market is wide from sole traders all the way through the ISO 27001 factories and body shops. Each has its place. Working out what is right for you is the key.
It is our experience that being able to meet the ISO 27001 consultant that will do the work is a great step. It builds the relationship and the trust and can lead to a smoother overall engagement.
UK ISO 27001 Companies
It may not be necessary to go with a UK ISO 27001 company if you find a company that meets your needs. Often the work is done remotely and as such the actual location of the ISO 27001 company has less relevance.
What to be wary of
The thing we recommend being wary of is the shared resource model.
Many of the ISO 27001 companies and ISO 27001 certification bodies use the same independent ISO 27001 consultants.
This pool of ISO 27001 consultants work freelance and make their money working for the many companies that are out there. What this translates to is getting the same resources but only the price differs depending on how you engage them.
This may or may not be important to you. If it is, then ask the question, do you employ third party contractors or do you use your own company employed staff.
Clearly we are an ISO 27001 company. Our list cannot be truly independent but we want you to have choice. Being on the list does not constitute an endorsement by High Table or come with any guarantees or warranties.
Do your own ISO 27001 company due diligence before engaging any company.
Now it’s time for the top 10 ISO 27001 companies updated for 2026 with the latest list of ISO 27001 Consultants and Consultancies and our pick for best ISO 27001 company 2026.
GET A QUOTE
The 10 Best ISO 27001 Certification Bodies for 2026
1. Tempo Audits
The new kids on the block as a new ISO 27001 certification body targeting small business and tech business. Good and industry awards.
Tempo Audits was created by a tech founder with one mission: to simplify the compliance journey for modern companies.
We understand your challenges, and we’ll make the process as easy as possible along the way.
2. ISO27001•COM
ISO27001•COM – ISO 27001 Certification Body provide assured ISO 27001 certification in as little as 7 days using their unique fast track model. A new global certification body entered the market in 2026 and fast establishing a presence.
3. BSI
The BSI are an ISO 27001 certification company and considered by many to be the gold standard. It comes at a cost and the certificate is the same product but if badges are your thing, then one from these guys will go a long way.
Whether you’re starting your business improvement journey, or looking to enhance current knowledge and capabilities, contact our expert team who will be able to give advice and guidance about options that will enable you to meet your goals.
4. Centre for Assessment Limited
We have experience of Centre for Assessment auditors and find them approachable and easy to work with. Costings appear reasonable.
Ensure that every form of information you hold is protected and secure.
As the internationally-recognised Information Security Management System Standard, ISO 27001 will help you meet contractual requirements.
Wherever you are based, Centre for Assessment can provide you with a robust, UKAS-accredited certification audit.
5. British Assessment Bureau
They are technically – Amtivo Group Limited trading as British Assessment Bureau and Certification Europe
The cost of your ISO 27001 certification will be quoted on a fixed fee basis, reducing your worry about additional costs.
The cost of certification will depend on:
- your organisation’s total size
- the sector you operate in
- the number of locations you operate from.
We always provide a fixed fee with no hidden costs to worry about. We also offer a variety of payment plans to suit your budget. Contact us today for a quote.
6. A-lign
A certification body that comes at a price. One of the most expensive certification bodies we have come across on the market today, especially for the ISO 27001 UK market.
As an accredited ISO 27001 certification body, A-LIGN has helped hundreds of organisations meet their ISO certification needs. We can help you too.
7. NQA Certification Ltd
A certification body for which we have not had any experience. A quick Google and there were no obvious reviews. On the list for completeness.
We provide independent certification and training for a range of Information Security standards. Our services help you to manage the ongoing development of technology and mitigate the risk associated with data and information.
8. Alcumus ISOQAR Limited
According to their website they are ANAB accredited. We found it difficult to find any reviews online and they are not a body we have experience on but they are on the list as they seem popular.
ISOQAR has an enviable record for customer satisfaction for its certification services. A friendly, practical and straightforward approach has led to continual steady growth through referrals from contented clients and management consultants. ISOQAR only employs auditors that have empathy with this approach. They are also carefully allocated by their experience in the industry they are auditing. This results in a practical, meaningful audit, carried out in an air of mutual understanding. ISOQAR firmly believes that its audits should ‘add value’ and benefit the organisation being audited.
9. LRQA Limited
Our auditors are well-versed in assessing against ISO 27001, helping you to ensure that your information security systems align with the latest requirements and guidelines. We go beyond providing certification services with our industry-leading training programmes which have been designed to upskill your team.
10. SGS United Kingdom Limited
With years of worldwide experience in information security, cybersecurity and privacy protection, we can help you along the path to certification with an ISO/IEC 27001 certification audit. Your audit can include a gap assessment and benchmarking. We will determine your level of information security competence and provide advice on how to achieve ongoing improvement.
Top 10 ISO 27001 Companies for 2026
1. High Table
High Table’s revolutionary process gets clients ISO 27001 certification up-to 30x cheaper, 10x faster. They offer a range of options from unique individual ISO 27001 templates, the exclusive ISO 27001 template toolkits that are used by business and ISO 27001 professionals who want to save time and money and do it themselves to their structured 6 step process. It is the amount of free resources, ISO 27001 YouTube Channel and unique templates that sets them apart. We are a little biased but the number 1 ISO 27001 company would be High Table: The ISO 27001 Company.
2. XpertDPO
XpertDPO is a data security, governance, risk and compliance, GDPR and ISO consultancy that offers practical, tailor-made solutions.
We are one of the leading providers of Outsourced Data Protection Officer Services in Europe. We also specialise in offering Nominated European Representative Services to non EU based organisations.
3. DRB Compliance
Compliance with the FCA regulations is often seen as a business prevention tool. At DRB Compliance Limited, we believe that with the right approach, integrating compliance into everything you do will help your business grow.
Each business is different and there isn’t a ‘one size fits all’ solution. We work closely with each of our clients to ensure the service we provide is perfectly tailored to their individual needs.
DRB Compliance Limited was formed to help you embrace, implement and ultimately benefit from compliance.
4. Advent IM
‘We have a proven track record in taking companies through the process to successful accreditation. But where our approach differs is that we don’t believe one size fits all. Every organisation has its own objectives and ways of working and we provide bespoke, proportionate solutions that meet your needs. And we don’t just do the work and walk away. We mentor staff through key aspects of the implementation to ensure they have the necessary skills to maintain the management system as the organisation grows and changes.
Our consultants are qualified ISO 27001 Lead Auditors with many years’ experience of delivering information security services and implementing information security management systems.’
5. iStorm
We can help you achieve and maintain compliance with the industry and international standards such as the Government Cyber Essentials scheme and ISO 27001 so that you can demonstrate your commitment to good cyber security and information security practices.
6. Bridewell
ISO 27001 is the internationally recognised standard for having an effective Information Security Management System (ISMS).
Bridewell Consulting provide various levels of support, help and training to organisations who need to have ISO 27001:2013 certification.
7. Cognisys
We can assist you in the attainment of ISO 27001 by identifying where you are and what you need to do to gain accreditation.
8. Re-alitek
Our team can provide the tools, documentation and expertise needed to fast track your organisation towards certification.
Working flexibly, in either a consultative or implementation role, allows us to work with a range of organisations regardless of size, expertise or resource.
9. Hanjo Consultants
We work with clients addressing ISO compliance for the first time, and; work with established clients who are on a growth trajectory and need guidance and an independent review before being audited.
10. Vorago Securtiy
We provide a little or as much help as you need and can help you no matter where you are in your journey. We have designed a modular system so if you decide you need more assistance we can discount what has already been spent with us to help you make the next step.
Top 5 ISO 27001 Companies Compared: Value vs. Expertise (2026)
| Company | Est. Cost | ISO 27001:2022 Focus | Benefits (Pros) | Cons (Trade-offs) |
|---|---|---|---|---|
| 1. High Table | Low / Efficient | Full Annex A (93 Controls) & Policies | Up to 10x faster implementation; 30x cheaper than consultants; Includes comprehensive templates. | Requires internal champion (DIY/Hybrid model). |
| 2. XpertDPO | Variable | Legal & Privacy Controls (e.g., 5.34) | Strong GDPR & ISO integration; Practical, tailor-made solutions. | Niche focus on Data Protection; Consultancy rates apply. |
| 3. DRB Compliance | Variable | Compliance Controls (e.g., 5.31, 5.32) | Growth mindset; Deep experience with FCA/Financial Services regulations. | Traditional consultancy model; May be overkill for non-regulated sectors. |
| 4. Advent IM | High / Premium | People & Org Controls (e.g., Clause 7, Annex A 6.x) | Mentoring-led approach (training staff); Qualified Lead Auditors; Bespoke service. | Premium day rates; Slower timeline than accelerators. |
| 5. iStorm | Variable | Technological Controls (e.g., Annex A 8.x) | Dual expertise in Cyber Essentials & ISO 27001; Strong technical security focus. | Less “productised” than High Table; Standard consultancy timeline. |
- High Table – https://hightable.io/contact/
- XpertDPO – https://xpertdpo.com/contact/
- DRB Compliance – https://www.drbcompliance.com/contact-us/
- Advent IM – https://www.advent-im.co.uk/contact-us/
- iStorm – https://istormsolutions.co.uk/contact-us/
Key Criteria for Vetting an ISO 27001 Consultant
This will depend a lot on what your requirements are.
It is our experience that the market is wide from sole traders all the way through the ISO 27001 factories and body shops. Each has its place. Working out what is right for you is the key.
It is our experience that being able to meet the ISO 27001 consultant that will do the work is a great step. It builds the relationship and the trust and can lead to a smoother overall engagement.
A Tough List To Create
I am not going to lie to you. This was a really hard list to come up with. I never thought it would this hard.
The majority of ISO 27001 companies in the UK and worldwide are either one man bands with no website or small early boutique ISO 27001 consultancies with absolutely shocking websites that tell you nothing about what they are going to do for you for ISO 27001.
I think that is why no one has ever created a top 10 list of ISO 27001 companies before.
If you can recommend a decent company I am more than open to changing the list. Just contact me.
Why we believe High Table is the top choice
The best ISO 27001 company 2026 is High Table Global. The absolute go to company for all things ISO 27001, ISO 27001 specialists and home of the ISO 27001 Lead Ninja.
ISO 27001 Certification Bodies FAQ
How do I choose between a “Gold Standard” and “Disruptor” body?
Your choice depends on your commercial goals:
- Choose “Gold Standard” (BSI/LRQA): If your clients are governments, banks, or defense contractors. They recognize the “BSI” badge instantly and associate it with maximum rigor. Expect to pay a premium (30-50% higher).
- Choose a “Disruptor” (Tempo/ISO27001•com): If you are a SaaS/Tech company needing speed and cost-efficiency. These bodies use modern tech to audit faster, often costing significantly less, while still providing full UKAS/ANAB accreditation.
What is the difference between an ISO 27001 “Company” and a “Certification Body”?
It is critical not to confuse the two:
- ISO 27001 Company (e.g., High Table): These are Implementation Partners. We help you build the system, write the policies, and prepare for the audit (Consultancy/Toolkits). We cannot issue the certificate.
- Certification Body (e.g., BSI, NQA): These are Auditors. They mark your homework and issue the certificate. They cannot help you build the system (conflict of interest).
Best Practice: You need both. Use a company like High Table to prepare, then hire a Body like NQA to audit.
What is the “Shared Resource Model” risk?
The Shared Resource Model is where different certification bodies hire from the same pool of freelance contractors.
- The Risk: You might hire a “Premium” brand expecting a staff auditor, but get a freelancer who also works for a “Budget” brand.
- The Fix: Ask your potential supplier: “Are your auditors full-time employees (PAYE) or contractors?” Bodies with full-time staff generally offer more consistent auditing styles and better long-term support.
Is it worth paying extra for a UKAS/ANAB accredited certificate?
Yes, almost always.
- Accredited: Regulated by the government-backed board (UKAS in UK, ANAB in US). This is the only certificate accepted in formal tenders, government contracts, and by enterprise procurement teams.
- Non-Accredited: Unregulated. While cheaper and faster, it is essentially a “participation trophy.” If a big client checks your certificate and sees it isn’t accredited, they may reject it, forcing you to pay for the whole process again.
Why are Fixed-Price quotes better than Variable Day Rates?
Fixed-price quotes give you cost certainty.
- Variable Quotes: Often used by traditional bodies (BSI, SGS). They bill by the day. If the auditor works slowly or you need a re-audit, the price goes up.
- Fixed-Price Quotes: Often used by modern bodies (British Assessment Bureau, ISO27001•com). They give a single cost for the certification cycle.
Tip: Always ask if “Stage 1” repeats or “Travel Expenses” are included in the fixed price to avoid hidden fees.
What is included in the “Daily Rate” vs. “Management Fee”?
When comparing quotes, ensure you aren’t comparing apples to oranges.
- Daily Rate: The fee for the auditor’s time on-site/remote (typically $1,200–$1,800/day).
- Management/Application Fees: Some bodies charge an annual “file maintenance” fee ($500–$2,000) just to keep your certificate active.
- Deal Breaker: Ask if the “Stage 1” documentation review is a fixed price or billed hourly. Fixed is safer.
Can I use a remote-only certification body?
It depends on your scope.
- Yes: If your business is digital (Software, Consultancy, Finance) and your physical office is just desks. Remote auditing is now the industry standard for these sectors.
- No: If you have physical security risks (Data Centers, Manufacturing, Secure Storage). The auditor must visit on-site to check physical controls (CCTV, perimeter fences).
Can we transfer our ISO 27001 certificate to a new provider mid-cycle?
Yes, and it is usually free.
- The Process: You can transfer your certificate to a new Accredited Certification Body at any time, provided you have no outstanding “Major Non-Conformities.”
- The “Hook”: Most new providers will waive the transfer fee to win your business for the remaining 2 years of the cycle.
What happens if we fail the Stage 1 audit?
Technically, you cannot “fail” Stage 1—it is a readiness review. However, if the auditor finds “Areas of Concern” that are essentially blockers:
- Scenario A: You fix them quickly (no extra cost).
- Scenario B: You are so unprepared that a re-audit is required (you will pay for those extra days).
Pro Tip: Ask your Certification Body: “Do you charge for a repeat Stage 1 if we are not ready, or can we just pause the timeline?”
What critical questions should I ask a supplier?
Use this checklist during your sales call:
- “What are your lead times for booking Stage 2 dates?” (Avoid 6-month waits. Strategy: Smaller, agile certification bodies often win business purely on availability).
- “Can you combine our ISO 27001 audit with ISO 9001 or SOC 2?” (Integrated audits save ~20-30% on audit days).
- “Are your auditors full-time employees or contractors?” (Full-time employees offer more consistency).
- “Does your quote include the UKAS/ANAB levy fees?” (Ensure the Total Cost includes Application Fee + Audit Days + Travel + Accreditation Levies + Admin Fees).
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ISO 27001 Certification Body Briefing Pack
ISO 27001 Certification Body: Executive Briefing Pack
