If you need to appoint a Data Protection Officer but can't justify a full-time hire, the most common solution is an outsourced DPO — also called a DPO-as-a-service. Under UK GDPR Articles 37–39, there is no requirement for a DPO to be an employee. A qualified external individual or service can fulfil the legal role fully — provided they have the right expertise, independence, and access to your business. The key is knowing what to look for, what to avoid, and how to make the arrangement work in practice.
It's a common dilemma for scale-ups: you've reached the point where data protection needs to be taken seriously — maybe due diligence is looming, a major customer has asked about your GDPR posture, or you've simply realised your current approach isn't going to hold up. You know you need a Data Protection Officer. But hiring one full-time feels like a significant commitment for a function that isn't your core business.
The good news is that the law is on your side here. UK GDPR explicitly permits the DPO role to be fulfilled by an external service provider. The question isn't whether you can outsource the role — you can — it's how to do it properly so that you get genuine expertise and real accountability, not just a name on a policy document.
This guide sets out your options, what the law requires, and what good looks like when appointing an external DPO.
Before exploring the options, it's worth confirming whether a formal DPO appointment is required in your situation.
Under UK GDPR Article 37, a DPO is mandatory if your organisation:
Many scale-ups don't technically fall into any of these categories — but that doesn't mean they should ignore the DPO question. If you process significant amounts of personal data, handle customer or employee data at scale, work with NHS or public sector bodies, or are preparing for due diligence, having a formally appointed DPO (or an equivalent senior privacy lead) is increasingly expected. Investors, enterprise customers, and regulators all look for evidence that someone credible owns data protection.
Even where appointment isn't strictly mandatory, the practical benefits of having an expert in the role are substantial. The ICO also makes clear that voluntary appointment still requires compliance with the full obligations set out in Articles 37–39.
Article 37(6) of UK GDPR is explicit: "The data protection officer may be a staff member of the controller or processor, or fulfil the tasks on the basis of a service contract."
In other words, the law is entirely comfortable with the DPO being external. What matters is not employment status, but whether the individual or service can fulfil the core obligations set out in Articles 38 and 39:
This framework shapes what an effective outsourced DPO arrangement looks like in practice. It's not just about having an expert on hand to answer questions — it's about genuine accountability and ongoing involvement in your compliance programme.
There are broadly three routes scale-ups take when they need DPO capability without a full-time hire. Here's an honest assessment of each.
Some businesses designate an existing member of staff — typically someone in Legal, Compliance, IT, or Operations — to take on the DPO role alongside their existing responsibilities.
This can work in limited circumstances, but it comes with significant constraints. The ICO is clear that the DPO must have the expertise to carry out the role, and that they cannot be in a position of conflict of interest. Practically speaking, a COO who also determines data processing decisions, or a Head of Engineering who sets the technical architecture, is unlikely to satisfy the independence requirement.
The other challenge is that data protection is a broad and evolving discipline. Without genuine expertise, an internal appointee may end up providing a false sense of security rather than real compliance. The liability sits with your organisation either way.
Privacy consultants are widely available and can be engaged on a project or retainer basis. This can provide genuine expertise, but the model has limitations that are worth understanding before committing.
Most consultancy arrangements are project-oriented — they produce documentation, run an audit, or advise on a specific question, and then disengage. The ongoing operational reality of running a data protection programme — monitoring, staff queries, incident management, DSAR handling, policy updates, regulatory changes — often falls back on an internal team that may not be equipped to handle it.
Consultants also vary widely in their expertise and sector knowledge. The DPO role requires more than legal familiarity with GDPR; it requires understanding of your specific data flows, your industry context, and the practical ability to engage across your organisation.
An outsourced DPO service provides a named, accountable DPO — typically supported by a broader privacy team — on an ongoing basis. This is increasingly the preferred model for scale-ups who want a serious privacy programme without the cost and commitment of a full-time hire.
The key advantages over a consultant are continuity, operational depth, and accountability. A well-structured DPO-as-a-service provider embeds themselves in your business, attends risk committee meetings, handles the regulatory and operational tasks that arise day-to-day, and maintains the ongoing documentation that makes compliance real rather than theoretical.
This is the model Trust Keith is built around. Rather than treating data protection as a periodic review, Trust Keith provides a dedicated privacy expert embedded in your team alongside an intelligent platform that operationalises compliance — handling data discovery, policy management, DSAR workflows, DPIA processes, and incident management in one place. It's the combination of people and platform that makes the difference between a programme that exists on paper and one that actually works.
If you decide that an outsourced DPO service is the right route — and for most scale-ups, it is — here's what to evaluate before making a decision.
Not all DPO services are equal. Here are the patterns that should prompt further scrutiny:
Yes. Article 37(6) of UK GDPR explicitly states that the DPO may fulfil their tasks "on the basis of a service contract." There is no requirement for the DPO to be an employee. What matters is that they have the required expertise, independence, resources, and access to carry out the role as defined in Articles 38 and 39.
There is no formal registration process for DPOs in the UK — the ICO does not maintain a public register. However, you are required to publish the DPO's contact details (name or role and email address) in your privacy notice, and to make them available to data subjects. Some organisations also share DPO contact details directly with the ICO as a point of contact, which is good practice. Full details are available in the ICO's DPO guidance.
A privacy consultant typically provides advice on specific questions or projects — they're engaged for a defined piece of work and then disengage. A DPO has an ongoing, defined legal role: advising on compliance, monitoring adherence to data protection law, cooperating with the ICO, and acting as a contact point for data subjects. A consultant can support a DPO but cannot replace one where a DPO is legally required. An outsourced DPO service provides the ongoing, accountable role — not one-off advice.
Yes. Article 37(3) UK GDPR allows a DPO to be appointed for a group of undertakings, provided they are "easily accessible from each establishment." This is precisely the model on which most DPO-as-a-service providers operate — a named DPO with dedicated time and access for each customer, supported by a broader team. The key requirement is that the DPO can genuinely fulfil their obligations for each organisation they serve — this is worth verifying when evaluating providers.
Your outsourced DPO should be a material part of your response to any ICO investigation or enquiry. They are your registered contact point, they know your processing activities, and they should have the documentation and evidence to support your position. Ask any provider you're evaluating specifically what their approach is to regulatory engagement — and whether their professional indemnity insurance covers support through investigations. The strength of your DPO arrangement is tested precisely in these situations.
For scale-ups that need a credible, expert DPO without the overhead of a full-time hire, Trust Keith provides both the people and the platform to make it work.
Trust Keith's outsourced DPO service combines a dedicated, named privacy expert embedded in your business with an intelligent privacy management system that keeps your compliance programme running continuously — handling data discovery, DSAR workflows, DPIA processes, policy management, incident response, and audit-ready documentation in one place.
Trust Keith is used by data-centric scale-ups that want to do privacy properly — without building an internal team to do it. If you're at the point where data protection needs to be taken seriously, it's worth having a conversation.
Talk to a Trust Keith privacy expert →Or explore how Trust Keith works to understand what a serious, scalable privacy programme looks like in practice.