
BAFE, NSI, SSAIB, ISO and CHAS don't all transfer the same way when you sell. Here's how each accreditation works in a share sale vs an asset sale, and why it matters for your price.

James Dixey
Founder and Managing Director
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Get a valuationIf you run a fire protection, security, or safety compliance business, your accreditations aren't just badges on your website. They're what allow you to tender for work, satisfy insurance requirements, and charge the rates you charge. When it comes to selling, they're also one of the things most likely to cause problems if they're not properly understood.
The difficulty is that every accreditation has its own rules about what happens on a change of ownership. Some stay with the company. Some need to be reapplied for. Some technically survive but trigger a review that can take months. When we speak to owners in this sector, the accreditation question is often the one that shapes the entire deal structure.
A fire and security business without its accreditations is a very different proposition to one with them. Without BAFE registration, you can't demonstrate third-party certification to the standards most clients now expect. Without NSI or SSAIB approval, your installations won't qualify for police response and many insurers won't accept the work. Without CHAS or an equivalent SSIP scheme, you can't get through procurement for most public sector and construction contracts.
Buyers know this. It means your accreditations directly affect what a buyer is willing to pay, because they affect the revenue the business can generate from day one of their ownership. A gap in accreditation isn't just an inconvenience. It's lost contracts, lost tenders, and potentially lost clients who require certified providers as a condition of their own compliance.
As with most regulated or accredited businesses, the sale structure makes an enormous difference.
In a share sale, the buyer purchases the shares of the limited company. The company itself doesn't change. Its accreditations, registrations, and certification history all remain in place. The buyer will need to notify each accreditation body of the change in ownership and directors, and some will carry out an interim review or bring forward the next scheduled audit. But there is no gap in accreditation. The company can continue trading, tendering, and delivering certified work without interruption.
In an asset sale, the buyer is a new legal entity. They're purchasing the customer base, equipment, vehicles, staff (through TUPE), and goodwill. But the accreditations stay with the selling company. The buyer must apply for every accreditation from scratch, in their own name, and cannot claim certified status until each one is granted.
For most fire, security, and safety businesses, this distinction alone is enough to steer the deal towards a share sale. The practical consequences of an asset sale in this sector can be severe.
BAFE registration is held at company level. It's assessed by a UKAS-accredited certification body (such as BSI or IFC Certification) against the relevant BAFE scheme, whether that's SP203-1 for fire alarms, SP101 for extinguishers, SP205 for fire risk assessments, or any of the other schemes.
In a share sale, the BAFE registration stays with the company. The certification body needs to be notified of changes to ownership and key personnel, and will likely carry out a review at or before the next scheduled audit. If the quality management system, engineering team, and operational processes remain substantially unchanged, there's no reason the registration should be affected.
In an asset sale, the buyer would need to apply for BAFE registration through a certification body as a new organisation. That means a full initial assessment, including documentation review, site audit, and verification of staff competencies and qualifications. From conversations we've had with business owners who've been through this process, achieving BAFE registration from scratch typically takes three to six months, and that's assuming the buyer's systems are already well documented.
During that period, the buyer cannot hold themselves out as BAFE registered. For a business where BAFE registration is a prerequisite for most of the work, that gap is a serious commercial problem.
NSI (National Security Inspectorate) and SSAIB (Security Systems and Alarms Inspection Board) are the two main UKAS-accredited certification bodies for security and fire system providers. Both offer tiered certification covering installation, maintenance, and monitoring of intruder alarms, CCTV, access control, and fire detection systems. NSI Gold, in particular, includes assessment of the company's management systems alongside technical competency.
The transfer principles are the same as BAFE. In a share sale, the company retains its certification. The certification body must be informed of the ownership change and will review it, but the approval continues. In an asset sale, the buyer starts from zero and must go through the full application and audit process.
This matters because NSI and SSAIB certification is what enables police response for monitored alarm systems. Without it, a security company can still install alarms, but those systems won't qualify for URN (Unique Reference Number) allocation from the police. For many commercial clients, and for almost all insurance-stipulated installations, that makes the service significantly less valuable. One thing we've noticed is that buyers often underestimate how long SSAIB or NSI certification takes to achieve, particularly NSI Gold, which requires a more comprehensive management system audit.
ISO certifications are held by the company and managed through whichever certification body issued them. The most common in this sector are ISO 9001 (quality management), ISO 14001 (environmental management), and ISO 45001 (occupational health and safety).
In a share sale, ISO certifications generally survive, but the certification body must be notified of the ownership change. Under most certification body rules, a change of ownership triggers a review process. If the quality management system, staff, and operations remain the same, the certification body will typically confirm continuity at the next surveillance audit, which happens every six to twelve months. Some may bring forward an audit or request a brief review visit.
In an asset sale, the picture is more complicated. The certification itself belongs to the original company and cannot be transferred to a new entity. The buyer would need to apply for certification in their own right. However, if the buyer is acquiring the entire team, the existing management system documentation, and continuing the same processes, many certification bodies will work pragmatically. Some will accept a transfer audit rather than requiring a full initial assessment from scratch.
The practical advice we give to sellers is simple: talk to your certification body before the deal completes, not after. In a share sale, it's usually a formality. In an asset sale, early engagement can save months.
CHAS (Contractors Health and Safety Assessment Scheme), SafeContractor, and Constructionline are all part of the SSIP (Safety Schemes in Procurement) framework. They assess health and safety competency for contractors, and they're a gateway requirement for most public sector procurement and a growing number of private sector tender processes.
These accreditations are held at company level and renewed annually. In a share sale, they remain in place. The company updates its details with the scheme, and the accreditation continues.
In an asset sale, the buyer applies as a new company. The good news is that SSIP assessments are generally quicker to obtain than the technical accreditations above, often a matter of weeks rather than months. The less good news is that during the gap, the buyer may be locked out of tenders that require SSIP accreditation as a baseline.
Constructionline is worth a specific mention because some levels (such as Gold and Platinum) involve more detailed financial and operational assessment, and rebuilding that profile from scratch takes longer than standard CHAS accreditation.
The accreditation profile of a fire, security, or safety business has a direct bearing on its value. A company with BAFE, NSI Gold, ISO 9001, and CHAS is a fundamentally more attractive acquisition than one without, because the buyer is purchasing immediate, uninterrupted access to the markets those accreditations open up.
Where sellers sometimes leave value on the table is by not preparing their accreditation documentation ahead of a sale. Buyers and their advisers will want to see current certificates, audit reports, the dates of upcoming surveillance visits, and confirmation that all accreditations are in good standing. If there are any non-conformances outstanding from recent audits, resolving them before you go to market removes a point of negotiation.
The other thing worth noting is that a strong accreditation portfolio can actually widen your buyer pool. Trade buyers and acquisition-led groups in the fire and security sector often use acquisitions as a way to gain accreditations and approved status in regions or disciplines where they don't currently hold them. Your accreditations might be worth more to them than you think.
Our free valuation calculator can give you an initial sense of what your business might be worth. If you'd like to talk through how your accreditations fit into your sale, James is always happy to have a confidential conversation.

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