Skip to content

Speak to an Expert

Independent compliance assurance

Independent Audits & Certification for Temporary Labour Supply Chains

Compliance.One independently audits end clients, recruitment agencies, umbrella companies and subcontractors, helping organisations identify compliance risks, improve supplier performance and demonstrate robust labour supply chain governance.

Speak to an Expert Explore the Compliance.One Standard
A Compliance.One auditor reviewing labour supply chain records with a site worker

Independent assurance

Across every stage of your labour supply chain

The value of independent compliance assurance

Turn compliance into stronger oversight, safer decisions and lasting trust.

A diverse compliance team reviewing supply chain evidence together

  • Reduce Financial & Legal Risk

    Reduce exposure to fines, claims and scrutiny.

  • Improve Supply Chain Performance

    Spot weaknesses. Strengthen every supplier.

  • Increase Board-Level Visibility

    Clear evidence. Better oversight.

  • Impartial Supplier Auditing

    Objective audits. Greater supplier insight.

  • Protect Your Brand

    Prove responsible practice. Build trust.

A compliance professional supported by Compliance.One

Trusted by businesses serious about labour supply chain compliance.

Compliance.One helps organisations raise standards, reduce risk and build trust across their labour supply chains.

16 years
Compliance experience
450+
Organisations supported
2,800
Audits completed
98%
Certification retention
CBRE logoTaylor Wimpey logoRedrow logoTaylors of Harrogate logoVINCI logoWSH logoCBRE logoTaylor Wimpey logoRedrow logoTaylors of Harrogate logoVINCI logoWSH logo

What is Compliance.One?

Independent certification. Practical assurance. Stronger compliance.

Compliance.One helps organisations reduce risk, strengthen compliance and build trust through independent audits, certification and consultancy.

Clear. Independent. Practical.

Who We Work With

  • End Clients seeking oversight of suppliers and their temporary labour supply chain
  • Recruitment Agencies seeking certification and assurance of their supply into customers
  • Umbrella Companies seeking independent assurance
  • Subcontractors operating within labour supply chains
Speak to an Expert
A diverse team of compliance professionals reviewing evidence together

Compliance Built on People, Process, Heritage & Expertise

  • People

    Experienced professionals who understand the realities of complex labour supply chains.

  • Process

    A clear, consistent approach that turns evidence into practical assurance.

  • Heritage

    16 years of compliance experience and a proven track record you can trust.

  • Expertise

    Specialist knowledge in workforce compliance, auditing and independent certification.

Everything You Need for Compliance

Four connected services to assess, certify, improve and assure your labour supply chain.

Get Certified

Certification

  • Independent assessment
  • Recognised certification
  • Stronger stakeholder confidence
Find out more

Audits

  • Objective compliance reviews
  • Clear risk findings
  • Practical action plans
Find out more

Consultancy

  • Gap analysis
  • Policy and process support
  • Certification preparation
Find out more

Ongoing Assurance

  • Annual reviews
  • Surveillance activity
  • Continuous improvement
Find out more

Are You Confident Your Labour Supply Chain Is Compliant?

Compliance.One independently audits recruitment agencies, umbrella companies and subcontractors to uncover hidden risks in workforce compliance, worker protection, tax, right to work and supply chain governance.

Speak to an Expert Explore Our Certification

JSL

Joint and Several Liability puts tax risk squarely on those at the top of the chain.

Regulatory Change

Fast-moving rules on umbrella working, CIS and right to work demand constant vigilance.

Board Accountability

Directors are increasingly answerable for compliance failures deep in their supply chain.

The framework

The Compliance.One Standard

A clear, independent framework for assessing labour supply chain compliance across seven core areas.

Organisations can complete the full Standard for certification or focus on specific areas through targeted audits and consultancy.

Explore the Standard with our teamExplore the Standard

The Compliance.One Standard

Seven connected compliance areas

Worker Compliance

Right to work, identity checks and worker documentation verified across the chain.

AssessedEvidencedCertified

A Simple Path to Certification

  1. 1

    Apply

    Tell us about your organisation.

  2. 2

    Assessment

    Auditors review your systems and evidence against the Standard.

  3. 3

    Certification

    Successful organisations receive Compliance.One Certification.

  4. 4

    Maintain

    Ongoing reviews keep your certification and standards strong.

Built on Trust. Driven by Expertise.

Independent Audits, Certification and Assurance for Labour Supply Chains

Identify risk. Verify compliance. Strengthen supplier oversight.

Compliance.One independently audits recruitment agencies, umbrella companies and subcontractors to help organisations protect workers, reduce risk and demonstrate compliance.

Independent Certification

Objective. Rigorous. Trusted.

Practical Approach

Clear. Simple. Effective.

Industry Expertise

Knowledge. Insight. Experience.

Continuous Improvement

Certify. Maintain. Improve.

Recognised Assurance

Confidence you can prove.

4.9 / 5 · 100+ Google reviews

Trusted by Organisations That Value Compliance

“Compliance.One gave us genuine visibility of our labour supply chain for the first time. The audit was rigorous but practical, and the findings were something we could actually act on.”
Sarah WhitfieldHead of Procurement · National Construction Group
“Certification has become a real differentiator in tenders. Clients see the mark and know our onboarding, right to work and pay controls have been independently tested.”
Daniel OkoyeManaging Director · Regional Recruitment Partner
“The consultancy and training support lifted the whole team's confidence. Our internal reviews are sharper and we go into annual surveillance far better prepared.”
Rachel EmeryCompliance Manager · Facilities Services Provider
“Compliance.One made our first certification far less daunting than we expected. The team explained every requirement clearly and the audit itself was thorough but genuinely constructive.”
Helen MarsdenVerified Google review
“We have used Compliance.One for supply chain audits for two years now. Their reporting is clear, the recommendations are practical and our clients have real confidence in the results.”
James AttwoodVerified Google review
“Excellent support from start to finish. The consultancy sessions gave our compliance team the structure they needed and we passed surveillance without a single major finding.”
Priya RaghavanVerified Google review

Supporting Every Sector

Different industries. Different challenges. One need: trusted compliance. Compliance.One provides audits, certification and assurance tailored to your sector.

Explore Your Sector
Construction workers beside the steel frame of a buildingConstruction
Two professionals meeting across a desk in an officeRecruitment
Uniformed security officer in a reception areaSecurity
Facilities staff cleaning a bright office lobbyFacilities Management
Factory workers operating machinery on a production floorManufacturing
Warehouse staff beside a lorry at a loading bayLogistics
Three healthcare professionals talking in a hospital corridorHealthcare
Four business professionals collaborating around laptopsProfessional Services

Resources

Read our Blog

View all articles
Audits

Why Independent Compliance Audits Are Essential for End Clients

For organisations that rely on temporary, contingent or agency workers, recruitment agencies are an essential part of the workforce supply chain.

Read more 8 min read
JSL

How to Audit Your Labour Supply Chain Under the New JSL Rules

JSL has redefined supplychain accountability for UK employers, but the critical question remains: do you have complete oversight of every party in your labour supply chain and the assurance that each is compliant?

Read more 9 min read
Right to Work

Right to Work Compliance: Are You Properly Vetting Temporary Workers and Contractors Across Your Supply Chain

A Right to Work check might look like a simple step in the recruitment process of temporary workers or contractors, but getting it wrong can create serious consequences for end clients, recruitment agencies and the workers they place.

Read more 11 min read

Frequently Asked Questions

What is an independent compliance audit?
An independent compliance audit is an objective review of an organisation's recruitment, employment and labour supply chain processes by an external specialist. Unlike an internal compliance check, an independent audit provides an impartial assessment of whether suppliers and processes are meeting relevant legal, regulatory and contractual requirements. Compliance.One audits can identify potential compliance gaps across areas such as worker eligibility, pay and deductions, employment status, IR35, terms and conditions, supply chain controls and supplier due diligence. The result is greater visibility of risk, clear evidence of compliance and practical recommendations for improvement.
Do you offer accredited independent compliance audits?
Compliance.One provides independent compliance audits and can issue certification following successful completion of the relevant audit requirements. It is important to distinguish between an independent audit and external accreditation of the audit provider. Compliance.One should only be described as “accredited” where a specific, recognised accreditation applies to the service or auditor. Our focus is on providing an objective, evidence-based assessment of compliance and giving organisations documented assurance over their temporary labour supply chain.
What are the key benefits of an independent compliance audit?
The key benefits include: independent assurance — an objective assessment from outside your organisation; risk identification — uncover potential compliance issues before they become costly problems; supply-chain visibility — understand how suppliers and sub-suppliers are operating; better governance — strengthen controls, processes and supplier management; evidence of compliance — demonstrate that appropriate checks have been undertaken; worker protection — help ensure workers are engaged, paid and treated appropriately; reputational protection — reduce the risk of being associated with poor employment or compliance practices; and continuous improvement — use audit findings to create clear corrective actions. Independent audits can be particularly valuable where organisations need to demonstrate robust due diligence to clients, procurement teams, workers or other stakeholders.
Why should businesses independently audit their recruitment agencies?
Businesses can face significant risks if a recruitment agency or another supplier in their labour supply chain is not operating compliantly. An agency may appear compliant on the surface while weaknesses exist in areas such as right-to-work checks, worker pay, holiday pay, employment status, payroll processes or supply-chain due diligence. An independent audit provides an evidence-based assessment rather than relying solely on a supplier's own assurances. This gives end clients greater confidence in the suppliers they use and helps identify issues early.
What happens if a supplier fails an independent compliance audit?
An audit should not simply identify a problem and stop there. The purpose is to provide visibility of the issue and support appropriate corrective action. Where compliance gaps are identified, organisations can agree remedial actions with the supplier, establish timescales for completion and, where appropriate, carry out follow-up checks or re-audits. This creates a structured process for moving from identifying risk to demonstrating improvement.
What is Compliance.One Certification?
Compliance.One Certification independently verifies that your organisation meets recognised standards of compliance through assessment against defined requirements.
How long does certification take?
Timeframes vary depending on the size and complexity of your organisation, but we'll provide a clear plan from the outset.
How often is certification reviewed?
Certification is supported by ongoing surveillance and periodic reassessment to ensure standards continue to be met.
What is an independent compliance audit of a temporary labour supply chain?
An independent compliance audit of a temporary labour supply chain examines the organisations and processes involved in supplying temporary or contingent workers. This can include recruitment agencies, umbrella companies, payroll providers and other suppliers within the labour supply chain. The audit assesses whether appropriate controls are in place and whether suppliers are operating in line with the required standards. For organisations using temporary labour at scale, independent auditing provides an additional layer of assurance that cannot be achieved simply by relying on supplier declarations or self-certification.
Why is Compliance.One a top provider of independent compliance audits in the UK?
Compliance.One combines independent auditing with specialist knowledge of temporary and contingent labour supply chains. Our approach is designed to look beyond policies and paperwork and assess the controls and practices that underpin day-to-day recruitment and employment. Areas reviewed can include right-to-work compliance, worker pay, deductions, employment status and IR35, terms and conditions, supplier controls and sub-supplier due diligence. The result is a practical audit that helps organisations understand where their risks are, what needs to be addressed and how they can strengthen supply-chain governance.
What does a Compliance.One audit check?
The exact scope can be tailored to the organisation and supply chain, but Compliance.One independent compliance audits can assess areas including company and supplier compliance, JSL compliance, right-to-work and worker eligibility, National Minimum Wage and National Living Wage, worker pay, deductions and holiday pay, employment contracts and terms and conditions, employment status and IR35, recruitment and onboarding processes, supplier and sub-supplier due diligence, payroll and documentation controls, and relevant employment and recruitment legislation. This provides a structured and independent assessment of compliance risks across the temporary labour supply chain, helping organisations identify gaps, strengthen supplier controls and demonstrate effective due diligence.
How often should you carry out an independent compliance audit?
The appropriate frequency depends on the size, complexity and risk profile of your temporary labour supply chain. A one-off audit can be valuable when onboarding a new supplier, reviewing an existing supply chain or preparing for a tender or client requirement. For larger or higher-risk supply chains, regular or ongoing auditing can provide stronger assurance. Compliance.One offers audit approaches that can be scaled according to the number of suppliers and the level of oversight required.
Can Compliance.One certify compliant temporary labour suppliers?
Yes. Following successful completion of the applicable Compliance.One audit requirements, a supplier can receive Compliance.One certification. Certification provides an independent point of reference that the supplier has undergone the relevant compliance assessment. It can help recruitment agencies, umbrella companies and other labour suppliers demonstrate their commitment to compliance and give clients greater confidence in their supply chain. Certification should be viewed as part of an ongoing compliance and assurance programme rather than a substitute for continued due diligence and monitoring.
Who can apply?
Any organisation committed to demonstrating high standards of compliance, governance and responsible business practices.
Do I need consultancy before certification?
Not always. Where additional support is needed, Compliance.One can provide practical consultancy to help your organisation prepare, strengthen its systems and develop internal capability.

Ready to Demonstrate Your Commitment to Compliance?

Achieving Compliance.One Certification shows your customers, partners and stakeholders that your organisation meets recognised standards of compliance and is committed to continuous improvement.

Whether you're applying for certification, looking to assess a specific area of your labour supply chain or strengthening your compliance capability, we're here to help.

Speak to an expert