Top 15 Retained HR Service Providers in the UK to Compare in 2026

For many UK businesses, having access to professional HR support does not necessarily mean employing a full-time HR manager or building an entire internal HR department. Retained HR services give businesses ongoing access to external HR expertise for an agreed recurring fee, helping them manage employee relations, HR policies, employment documentation, compliance and longer-term people requirements.

This can be particularly useful for SMEs that need regular HR support but do not yet require a full internal HR team. In addition, retained HR can supplement an existing HR function where extra expertise, capacity or strategic guidance is needed.

Apex HR LLC specialises in supporting SMEs and provides retained and outsourced HR support alongside broader people services such as talent acquisition, organisational development, performance, reward, employee experience and workforce planning.

This guide compares the Top 15 Retained HR Service Providers in the UK to consider in 2026. It looks at their service models, areas of expertise and the types of organisations they may suit. The providers are presented as options to compare rather than as a ranked league table. Therefore, employers should verify current pricing, contract terms, adviser availability, service inclusions and delivery arrangements before choosing a provider.

List of 15 Retained HR Service Providers in the UK to Compare in 2026

1. Apex HR LLC
2. Fitzgerald Human Resources
3. Harwood HR Solutions
4. Avensure
5. Peninsula
6. HR Solutions
7. WorkNest
8. The HR Dept
9. Norton Loxley
10. Moore Kingston Smith
11. Croner
12. Citation
13. Clover HR
14. Neathouse Partners
15. Impact HR

1. Apex HR LLC: Retained HR Support for SMEs and Growing Businesses

Apex HR LLC specialises in providing HR and people support for SMEs across the UK. Its retained model combines practical HR delivery with wider people strategy, giving businesses access to professional HR expertise without having to build every capability internally.

Through its Retained HR Services, businesses can access ongoing HR support tailored to their workforce, internal HR capacity and growth priorities. In addition, its Outsourced HR Services can support organisations that want broader external HR capability across multiple people functions.

Connecting Practical HR With Business Growth

Apex HR LLC’s retained approach is designed to connect day-to-day HR issues with the wider people challenges that often emerge as SMEs grow. For example, a performance concern may also involve management capability, role clarity, training, workforce planning or organisational design.

Depending on the scope of the engagement, support can include:

• Ongoing HR advice
• Employment contracts, policies and documentation
• Employee relations
• Performance management
• Workforce planning
• Recruitment and talent acquisition
• Organisational development
• Employee experience
• HR technology and people analytics
• Compensation and benefits
• Learning and development
• People strategy and senior HR advisory

Best Suited to SMEs Wanting Ongoing and Strategic HR Support

Apex HR LLC may suit small and growing businesses that need more than occasional HR advice. In particular, it can be relevant where an SME wants a retained HR relationship that supports day-to-day employee matters while also strengthening people processes and long-term workforce planning.

Businesses considering Apex HR LLC should compare: the scope of Retained HR Services, whether broader Outsourced HR Services are needed, adviser access, response times, strategic capability and how the support can scale as the business grows.

Contact Apex HR LLC

Phone: +447762272692
Email: Hello@apexhrllc.co.uk
Address: London, United Kingdom
Website: Apex HR LLC

2. Fitzgerald Human Resources: Flexible Retained HR Support

For businesses wanting flexible retained support, Fitzgerald Human Resources provides retained HR services alongside HR on demand, consultancy, outsourced people-team support and recruitment process outsourcing.
Its services cover areas including people management, employee relations, organisation development, recruitment, learning and development, reward and HR policy.

Retained HR That Adapts to the Business

Fitzgerald’s retained HR model provides businesses with access to HR professionals who can support employee issues, compliance and wider people strategy.
The company also emphasises a personal approach rather than operating purely as an advice line. Its retained service can include access to HR specialists and resources, while unused hours can roll over to provide additional flexibility when HR requirements increase.

Best Suited to Growing Businesses Requiring Flexibility

Fitzgerald may suit growing SMEs that need continuing HR support but want flexibility in how that support is used.
Its combination of retained HR, HR on demand and specialist consultancy can allow businesses to increase or reduce support according to their changing requirements.

3. Harwood HR Solutions: Retained HR Support for UK SMEs

Harwood HR Solutions provides retained HR services and outsourced HR support to SMEs across the UK. Its retained model is designed to give businesses ongoing access to practical HR expertise without the cost of employing a full internal HR team.

Dedicated HR Support for Day-to-Day People Matters

Harwood HR Solutions can support businesses with contracts, policies, employee relations, disciplinary and grievance matters, absence, performance and redundancy. In addition, its retained structure is designed around continuing access to HR advice rather than one-off consultancy alone.

This type of relationship can be useful for SMEs that want a consistent HR contact who understands the business and can provide support as issues develop.

Best Suited to SMEs Wanting Practical Retained HR

Harwood HR Solutions may suit SMEs that want a relationship-led retained HR service covering everyday people management and employment matters.

Businesses considering Harwood HR Solutions should compare: the monthly retainer, adviser access, services included, response times, employee-relations support and charges for work outside the agreed scope.

4. Avensure: Retained HR and Employment Law Support

For SMEs prioritising employment law and compliance, Avensure provides outsourced HR, employment law and ongoing HR support to UK businesses.
Its services cover everyday employee matters such as sickness absence, disciplinary procedures, grievances and performance, alongside more complex issues including redundancy, dismissal and employment tribunal matters.

Dedicated Advice and Ongoing Support

Avensure provides access to HR advisers supported by wider employment law and compliance specialists.
This model can give businesses ongoing access to professional guidance when employee issues arise.
Its wider services also cover employment documentation, policies and other HR requirements.

Best Suited to Compliance-Conscious SMEs

Avensure may suit SMEs looking for continuing HR and employment law support, particularly where managing employee relations and compliance is a significant concern.
Businesses requiring extensive organisational development, workforce planning or international people strategy should compare the available scope with providers offering broader strategic HR services.

5. Peninsula: HR, Employment Law and Business Support

Meanwhile, Peninsula is a large UK business support provider offering HR, employment law, health and safety and related workplace services.
Its offering includes HR advice, employment documentation, workplace support and HR technology.

Ongoing Advice and Digital HR Tools

Peninsula combines professional advice with technology designed to help businesses manage areas such as employee records, absence and leave.
Its scale and broad range of services can be relevant to employers that want HR support alongside wider workplace and compliance services.

Best Suited to Employers Prioritising Availability

Peninsula may appeal to businesses looking for accessible HR and employment law support as part of a broader business services arrangement.
However, employers that specifically want a dedicated senior HR consultant should establish how adviser continuity and case management work under the proposed agreement.

6. HR Solutions: Retained HR, Payroll and Business Support

In addition, HR Solutions provides retained and ad hoc HR support to organisations ranging from smaller businesses to larger employers.
Its wider service offering includes payroll, recruitment, HR administration, HR technology, salary benchmarking, online training and health and safety.

Multiple HR Functions Through One Provider

The ability to combine HR with related services can reduce the need for a business to coordinate several external suppliers.
HR Solutions can also support employee relations matters, restructuring, TUPE, redundancy and other complex HR requirements.

Best Suited to Businesses Seeking Joined-Up Support

HR Solutions may suit organisations that want retained HR alongside payroll, recruitment or other operational services.
Employers should nevertheless confirm which specialist projects are included in the retained arrangement and which attract additional charges.

7. WorkNest: Integrated HR and Workplace Support

Similarly, WorkNest provides outsourced HR support alongside employment law, health and safety and other workplace services.
Its HR offering covers a broad range of employee lifecycle requirements, including documentation, absence, performance, disciplinaries, grievances, restructuring and employee exits.

Broad Support Across the Employee Lifecycle

WorkNest combines professional HR support with technology and other workplace services.
This can allow businesses to manage HR administration and employee matters through a wider support structure.

Best Suited to Organisations Requiring Broad Capability

WorkNest may suit multi-site or growing organisations that want HR, employment law and wider workplace compliance support from one provider.
Businesses should compare the specific retained HR package, adviser structure, response times and specialist charges before entering an agreement.

8. The HR Dept: Local Retained HR Consultancy

For businesses wanting local consultancy support, The HR Dept is a UK network of locally operated HR consultancies providing outsourced and retained HR services.
Its services can include employment law advice, contracts, employee handbooks, employee relations, recruitment, performance management, training and HR administration.

Personal Support Through Local HR Consultants

The local consultancy model allows businesses to work with HR professionals who can understand their organisation while benefiting from the resources of a wider national network.
This can provide an alternative to a centralised HR advice-line model.

Best Suited to Owner-Managed SMEs

The HR Dept may suit small and medium-sized businesses that value a personal relationship with a local HR consultant.
Employers should assess the specific local office and adviser supporting them rather than relying only on the national service description.

9. Norton Loxley: Bespoke Retained HR for Growing Businesses

For start-ups and growing SMEs, Norton Loxley provides HR consultancy and outsourced HR support.
Its services cover HR documentation, employee relations, recruitment, HR systems and strategic HR support.

HR, Recruitment and Systems Support

Norton Loxley’s approach combines practical HR support with areas such as recruitment, talent planning and HR technology.
Its employee-relations support can cover matters including disciplinaries, grievances, performance, restructures and redundancies.

Best Suited to Ambitious SMEs and Scale-Ups

Norton Loxley may suit growing businesses looking for a flexible HR relationship that can include retained, ad hoc and project support.
Businesses should clarify response arrangements, included services and charges for complex HR cases.

10. Moore Kingston Smith: Embedded HR Business Partner Support

For organisations wanting multidisciplinary support, Moore Kingston Smith provides outsourced HR through a wider advisory organisation.
Its HR offering includes dedicated HR business partner support, employee relations, HR administration, documentation and strategic advice covering areas such as engagement, retention, reward and capability.

Operational HR and Specialist Expertise

An embedded HR business partner can provide ongoing support while the wider organisation can provide access to additional specialist expertise.
This can be useful when an organisation needs support with a combination of day-to-day HR matters and wider business or people challenges.

Best Suited to Organisations Requiring Multidisciplinary Support

Moore Kingston Smith may suit organisations that want an embedded HR relationship backed by broader advisory capabilities.
Employers should confirm the scope of the retained HR service and whether specialist projects are charged separately.

11. Croner: HR and Employment Law Advice

For compliance-focused SMEs, Croner provides HR outsourcing, employment law advice, HR documentation, HR technology and wider workplace support.
Its services cover areas such as employee relations, absence, performance, grievances and redundancy.

Compliance Advice and HR Resources

Croner can provide ongoing HR guidance to businesses that need support managing employment-related issues and maintaining appropriate HR processes.
Its wider resources and technology can also support HR administration and documentation.

Best Suited to Compliance-Focused Businesses

Croner may suit SMEs that prioritise employment law, HR compliance and practical employee-relations guidance.
Businesses should establish who provides their advice, how continuity is maintained and which complex matters are covered by the retained agreement.

12. Citation: Retained HR and Wider Compliance

Similarly, Citation combines HR outsourcing with employment law, health and safety and wider business compliance services.
Its offering can cover HR advice, employment documentation, employee relations and compliance support alongside workplace safety services.

Integrated Compliance Support

For businesses that want HR and other compliance requirements managed through one provider, Citation can provide a broader support model.
However, employers should establish exactly which consultancy, software, legal and compliance services are included in their retained package.

Best Suited to SMEs Wanting Broader Compliance Support

Citation may suit businesses that want HR support alongside employment law, health and safety and wider workplace compliance.

13. Clover HR: Bespoke Retained HR Support

For SMEs seeking a personalised retained relationship, Clover HR provides outsourced HR, recruitment, employee relations, leadership development and organisational change support.
Its retained model is designed to provide businesses with continuing access to a dedicated HR professional.

Personalised HR Support for Growing Businesses

Clover HR’s approach can cover practical HR matters while also supporting longer-term organisational development.
This can make it relevant to businesses that want a retained HR adviser who can become familiar with their workforce and management team.

Best Suited to SMEs Seeking Personalised Consultancy

Clover HR may suit growing businesses that value a relationship-led HR service.
Employers should confirm included hours, response arrangements, on-site availability and the cost of specialist projects.

14. Neathouse Partners: Dedicated HR and Employment Law Support

In addition, Neathouse Partners provides outsourced HR, employment law and health and safety services to UK businesses.
Its model places emphasis on dedicated advisers and ongoing consultancy rather than relying entirely on a centralised advice-line structure.

Support for Complex Employee Relations Matters

Neathouse Partners can support businesses with contracts, policies, disciplinary matters, grievances, absence, redundancy, TUPE and employment tribunal-related issues.
The continuity provided by a named adviser can be useful when employee matters develop over an extended period.

Best Suited to Employers Managing Complex HR Issues

Neathouse Partners may suit businesses that want ongoing access to an adviser who understands their organisation and can provide practical support with employee relations.
Employers should nevertheless review service limits, software provisions and any conditions attached to legal or insurance support.

15. Impact HR: Retained HR Support for SMEs

Impact HR provides retained HR consultancy and flexible HR support to SMEs. Its retained model is designed to give businesses regular access to professional HR guidance while also supporting more complex employee-relations and people-management requirements.

Ongoing HR Advice and Case Support

Impact HR can support areas such as HR compliance, employee relations, performance management, organisational development, training and employee engagement. In addition, retained clients can access ongoing advice and practical case support rather than relying solely on one-off consultancy.

This can be particularly useful for SMEs that want a closer HR relationship and more continuity when managing employee matters.

Best Suited to SMEs Wanting Hands-On Retained Support

Impact HR may suit small and growing businesses that need regular HR support, practical case management and access to broader people-development services.

Businesses considering Impact HR should compare: retained package scope, adviser access, documentation support, employee-relations case management, training, strategic HR input and any additional project charges.

Comparison of 15 Retained HR Service Providers in the UK

Provider	Distinctive Focus	Best Suited To
Apex HR LLC	Retained and outsourced HR with broader people strategy	SMEs and growing businesses needing ongoing HR support
Fitzgerald Human Resources	Flexible retained HR and people-team support	Growing businesses requiring hands-on support
Harwood HR Solutions	Retained HR and practical outsourced HR support	SMEs wanting relationship-led ongoing HR support
Avensure	HR, employment law and compliance support	SMEs prioritising HR and legal-risk support
Peninsula	HR advice, employment law and wider business services	Employers wanting broad ongoing support
HR Solutions	HR, payroll, recruitment and health and safety	Businesses seeking several services through one provider
WorkNest	HR, employment law and workplace compliance	Growing and multi-site organisations
The HR Dept	Locally delivered HR consultancy	Owner-managed SMEs
Norton Loxley	Bespoke HR, recruitment and HR systems	Start-ups, SMEs and scale-ups
Moore Kingston Smith	Embedded HR business partners and multidisciplinary expertise	Organisations requiring operational and specialist support
Croner	HR and employment law advice	SMEs focused on compliance
Citation	HR and wider business compliance	Businesses wanting integrated compliance services
Clover HR	Dedicated retained HR and organisational development	Growing businesses seeking personalised support
Neathouse Partners	Dedicated advisers and employment-law support	Employers managing complex employee relations
Impact HR	Retained HR consultancy and practical case support	SMEs wanting hands-on ongoing HR support

The comparison also shows why employers should not choose between retained HR service providers in the UK based solely on the number of services listed on a website. Some providers focus heavily on employment law and compliance, while others provide broader people strategy, organisational development, leadership or technology support.
The most appropriate model depends on the organisation’s workforce, internal HR capability, growth plans and the level of support required.

Recommended Articles:
Retained HR Services vs Ad Hoc HR Consultancy: Which Model Is Better for SMEs?
What Are Retained HR Services and What Do They Include for UK Employers?
Cost of Retained HR Services in Nottingham (2026)

What Are Retained HR Services?

Retained HR services involve an ongoing agreement between a business and an external HR provider. In practice, the exact structure varies between providers, including differences in adviser access, service scope and pricing.
Instead of paying an HR consultant only when an issue arises, the organisation pays an agreed recurring fee for continuing access to HR advice and support.
Depending on the provider, a retained HR agreement may include:

• HR advice
• Employment law guidance
• Employment contracts
• HR policies
• Employee handbooks
• Employee relations support
• Disciplinary and grievance guidance
• Absence management
• Performance management
• Recruitment support
• HR administration
• Manager support
• Strategic HR advice

Therefore, employers should always review the proposed service schedule before signing.

What Do Retained HR Services Include?

Depending on the agreement, a retained HR provider can support businesses across different stages of the employee lifecycle.

HR Advice and Consultancy

For example, businesses can access professional HR guidance when managers need support with employee or workplace matters.

Employment Contracts and Documentation

Providers can create, review and update employment contracts, handbooks, letters and other HR documentation.

HR Policies

A retained HR provider may develop and maintain policies covering areas such as absence, disciplinary procedures, grievances, flexible working and performance.

Employee Relations

Support can include disciplinary matters, grievances, performance concerns, workplace disputes and other employee-relations issues.

Recruitment and Onboarding

In addition, some providers support recruitment strategy, job descriptions, onboarding and wider talent requirements.

Performance Management

HR advisers can help managers structure performance reviews, objectives, capability procedures and improvement plans.

Compliance and Employment Law

Providers can help businesses understand employment law requirements and identify potential HR compliance risks.

People and Culture

Furthermore, some retained HR partnerships extend beyond compliance to employee engagement, leadership, organisational development, culture and retention.
This broader model is particularly relevant to businesses that want HR to contribute to growth rather than operate solely as an administrative function.

How to Compare Retained HR Providers

Choosing between retained HR service providers in the UK requires more than comparing monthly prices. Instead, employers should also compare how support is delivered.
The way the service is delivered can have a significant effect on the support your organisation receives.

Dedicated Consultant or Advice Team

First, find out whether you will receive:

• A dedicated HR consultant
• A named adviser
• A team of advisers
• Access to a central advice line

A dedicated consultant may provide greater continuity, while a larger advice team may provide broader availability and specialist access.

Operational HR or Strategic HR

Some providers concentrate on day-to-day HR administration and employment law.
Others provide strategic support involving:

• Workforce planning
• Organisational development
• Leadership
• Culture
• Recruitment
• Reward
• Employee engagement
• Talent management

Ultimately, employers should decide whether they primarily need HR risk management or a broader people partner.

Scope of the Retainer

Next, ask exactly what the monthly fee includes.
For example:

• How much HR advice is included?
• Are contracts included?
• Are policy reviews included?
• Are disciplinary and grievance matters covered?
• Is employment law advice included?
• Is strategic HR support included?
• Are HR projects charged separately?

Response Times

In addition, ask how quickly the provider responds to routine and urgent HR matters.
This is particularly important for businesses dealing with employee relations issues where delays can affect managers and employees.

Additional Charges

Importantly, some retained packages charge separately for complex work.
Clarify whether additional fees apply to:

• Investigations
• Disciplinary hearings
• Grievances
• Redundancies
• Tribunal matters
• On-site meetings
• Recruitment
• Training
• HR projects

Dedicated HR Consultant vs HR Advice Line

Another important difference between retained HR providers is how businesses access advice.

Dedicated HR Consultant

Over time, a dedicated HR consultant can become familiar with the organisation, workforce, managers and previous HR matters.
This can make continuity useful when an employee issue develops over several weeks or months.

HR Advice Line

By contrast, an advice-line model provides access to a wider team of advisers.
This can offer broader availability and access to different areas of expertise, although employers may speak with different advisers.

Which Model Should You Choose?

There is no universal answer.
Businesses should consider whether continuity or broad availability is more important to their HR requirements.
For example, a business managing frequent employee-relations matters may value a consistent adviser who understands its history, while another organisation may prefer access to a larger team of specialists.

Retained HR vs Ad Hoc HR Consultancy

Retained HR and ad hoc consultancy both provide access to external HR expertise, but they are designed for different patterns of need.

Factor	Retained HR	Ad Hoc HR Consultancy
Payment	Recurring fee	Hourly, daily or project-based
Support	Ongoing	As required
Cost predictability	Generally higher	Varies with workload
Business familiarity	Can develop over time	Depends on each engagement
Day-to-day HR advice	Suitable	Available when required
Strategic support	Can be ongoing	Usually project-based
Best suited to	Regular HR requirements	Specific issues or projects
Flexibility	Based on agreed package	High

For businesses with regular HR needs, an ongoing retained relationship may provide greater continuity.
By contrast, businesses with occasional or highly specific requirements may prefer ad hoc consultancy.

How Much Do Retained HR Services Cost in the UK?

There is no single standard price for retained HR services in the UK. Instead, pricing varies according to the provider, workforce size, service scope and level of access.
Providers may use monthly retainers, employee-based pricing, hourly rates, project fees or different service tiers.
The cost can depend on:

• Number of employees
• Scope of services
• Level of HR access
• Contract length
• Complexity of employee relations
• Industry
• Number of locations
• Whether on-site support is required
• Whether employment law support is included
• Whether HR software is included
• Whether strategic projects are included

Retainer Pricing vs Project Pricing

A retained arrangement provides ongoing access for an agreed recurring fee.
By contrast, an ad hoc arrangement charges according to the work completed.
Therefore, employers should compare the model that matches their actual HR requirements rather than assuming that the cheapest monthly fee represents the lowest overall cost.

How to Choose the Right Retained HR Provider

First, establish why your business needs external HR support.
Then, identify the specific services, outcomes and level of access required.

Define the Required Scope

List the HR responsibilities you want the provider to handle.
This may include:

• Employee relations
• Contracts
• Policies
• Recruitment
• Performance
• Compliance
• HR administration
• Strategic HR
• Employee engagement

Assess Adviser Expertise

Next, ask who will manage your account and what experience they have.
You should also establish when specialist advisers become involved in complex cases.

Review Technology and Data Protection

If the provider uses HR software, assess how it handles employee records, reporting, permissions, integrations and data security.

Examine Contract Terms

Review:

• Minimum contract period
• Renewal arrangements
• Notice period
• Price increases
• Included services
• Additional charges
• Data protection
• Handover arrangements

Consider Cultural Fit

Finally, remember that the HR provider may become involved in sensitive employee and management decisions.
Therefore, consider whether its approach to people, leadership and workplace culture is compatible with your organisation.

Questions to Ask Before Choosing a Retained HR Provider

Before selecting from the retained HR service providers in this guide, ask:

• Who will be our main HR contact?
• Will we have a dedicated HR adviser?
• What services are included in the monthly fee?
• What response times can we expect?
• Are employment law services included?
• Are disciplinary and grievance matters included?
• Are investigations charged separately?
• Are redundancy processes included?
• Are tribunal matters included?
• Can the provider support recruitment?
• Can it help with HR strategy and workforce planning?
• What HR technology is included?
• How is confidential employee information protected?
• What are the contract and cancellation terms?
• Can the provider scale with our business?

Need Retained HR Support for Your Business?

If your organisation needs ongoing HR expertise, explore Apex HR LLC’s Retained HR Services to see how regular HR support can be structured around your business.

If you need broader external HR capability, review Outsourced HR Services as an alternative or complementary option.

Not sure which model fits your business? Contact Apex HR LLC to discuss your workforce, current HR capacity and people priorities.

Phone: +44 7762 272692
Email: Hello@apexhrllc.co.uk
Location: London, United Kingdom

FAQs About Retained HR Services in the UK

1. What are retained HR services?

Retained HR services are an ongoing arrangement where a business pays an agreed fee to receive continuing access to external HR advice and support.

2. Are retained HR services suitable for small businesses?

Yes. Retained HR can be suitable for small businesses that regularly need HR support but do not require a full-time internal HR department.

3. What is usually included in a retained HR package?

Depending on the provider, services can include HR advice, contracts, policies, employee relations, disciplinary and grievance support, absence management, performance management, compliance and strategic HR support.

4. How much do retained HR services cost in the UK?

Costs vary according to the provider, workforce size, services required, contract terms and level of support.
Employers should request a detailed quotation and compare the complete scope of support rather than relying only on the monthly fee.

5. Is retained HR better than ad hoc HR consultancy?

Neither model is universally better.
Retained HR is designed for ongoing HR requirements, while ad hoc consultancy is generally more suitable for occasional issues or specific projects.

6. Do retained HR providers provide employment law advice?

Some do, but the scope varies.
Employers should confirm whether employment law guidance is included within the retained agreement and whether complex matters attract additional fees.

7. Should I choose a dedicated HR consultant or an advice line?

This depends on how your business prefers to receive support.
A dedicated consultant can provide continuity, while an advice-line model can provide access to a wider team.

8. Can an existing HR team use a retained HR provider?

Yes. External HR providers can supplement an internal HR function by providing additional expertise, capacity or support with complex employee matters.

9. What should I compare when choosing a retained HR provider?

When comparing retained HR service providers in the UK, review each provider’s services, support model, accessibility, consultant structure, contract terms, additional charges, employment law support, strategic services and ability to understand your business.