Contract catering PSL: what it takes to get on (and stay on) the list

Most staffing agencies never find out why they got rejected

No major UK contract caterer publishes its staffing-agency PSL requirements. Not Compass Group. Not Sodexo. Not Aramark, Elior, or ISS. The criteria live inside tender documents, supplier portals, and onboarding packs that you only see after you have asked the right person the right question.

That opacity is deliberate. PSLs exist to reduce risk, not to make it easy for agencies to tick boxes. But the compliance floor is knowable if you triangulate from published supplier codes, government regulations, and the one caterer (Compass Group) whose vendor-assurance process is partially public.

This guide lays out what the major caterers expect, what the compliance thresholds actually are, and what changed on 6 April 2026 that makes your payroll model the first thing they will scrutinise.

What a PSL actually is (and why caterers use them)

CIPS defines an Approved Supplier List as a pool of suppliers whose basic credentials have been checked, covering financial stability, legal compliance, insurance, and health and safety policies. In the CIPS Relationship Spectrum, PSL status sits one step above arm’s-length. It is a baseline relationship, not a strategic partnership.

In contract catering, the term PSL is used interchangeably with ASL (Approved Supplier List) or AVL (Approved Vendor List). The operational purpose is identical: a pre-vetted group of suppliers authorised to receive orders without re-tendering each time.

Four things drive caterers toward PSLs rather than open procurement:

Food safety law (the Food Safety Act 1990 and retained Regulation (EC) 178/2002) mandates traceability and due diligence. PSLs give caterers centralised compliance verification across hundreds of sites.

Cost control matters at scale. Compass Group’s procurement arm, Foodbuy, manages over £2 billion in purchasing power across 70+ categories. Consolidating suppliers into a PSL lets them negotiate volume terms.

Government Buying Standards for food and catering services require specific sustainability, animal welfare, and origin-labelling standards. PSLs ensure contracted suppliers meet these before the first order.

Administrative efficiency is the fourth reason. Crown Commercial Service notes that frameworks help buyers procure from pre-approved suppliers with agreed terms, which is “much simpler than doing the whole procurement yourself.”

Who runs the major PSLs and what they publish

Compass Group UK and Ireland

Compass is the most transparent of the major caterers about its supplier approval process, though even here, staffing agencies are handled separately from the public vendor-assurance portal.

The published process (via mycompasshse.co.uk) works like this: a business unit requests a new supplier through Foodbuy’s online helpdesk. The Vendor Assurance Team reviews a Supplier Evaluation Questionnaire covering food safety, environment, and corporate responsibility. Suppliers are risk-scored (high, medium, low) and audited accordingly. Non-food contractors go through OneTrust Third-Party Integrity Due Diligence.

For non-food contractors, Compass requires SSIP accreditation (SafeContractor or equivalent) and minimum public liability insurance of £10 million at the high-risk tier.

The catch: Compass’s own non-food supplier categorisation lists “HR Services” as out of scope for the standard vendor-assurance process. Staffing agencies are managed by a separate central HR procurement function, with requirements communicated privately.

Compass completed its acquisition of CH&Co in May 2024 for £475 million. Brands like Gather & Gather, Vacherin, and Company of Cooks now sit under the Compass umbrella, meaning their supply-chain controls are likely migrating to Compass governance structures.

Sodexo UK and Ireland

Sodexo spends over £800 million annually with 4,000+ suppliers. Its Group Purchasing Organisation, Entegra, handles procurement. All key suppliers must sign the Sodexo Supplier Code of Conduct and pass pre-qualification. Food suppliers are audited by Safegard, Sodexo’s internal H&S division.

Sodexo uses UKG Workforce Central (formerly Kronos) for workforce management, confirmed by a UKG UK case study referencing Sodexo at Manchester University NHS Foundation Trust.

Staffing-agency PSL requirements are not publicly documented.

Aramark UK

Aramark operates through Avendra International (combining Avendra, Pelican Procurement Services, Trinity Purchasing, and First Choice Purchasing). Supplier registration goes through the SupplierOne portal. Aramark publishes a Sustainable Sourcing Policy and ran a Level UP! Supplier Development Programme in late 2024 aimed at diverse and small suppliers.

Staffing-agency PSL requirements are not publicly documented.

Elior UK

Elior operates approved supplier lists with compliance-team oversight. Its business partner policy includes risk scoring based on conflict of interest, reputational factors, client recommendations, business type, and estimated annual volume. Suppliers must comply with the Responsible Sourcing Charter. Staffing-agency PSL requirements are not publicly documented.

ISS Food and Hospitality

ISS weights sustainability at 20% of tender evaluation. Annual sustainability surveys achieve an 87% combined response rate. Their Supplier Code of Conduct is downloadable from issworld.com. Staffing-agency PSL requirements are not publicly documented.

BaxterStorey and Bartlett Mitchell

Neither is part of Compass Group. Both belong to Westbury Street Holdings (WSH), in which US private equity firm Clayton, Dubilier & Rice holds a significant stake (business valued at £780 million). Bartlett Mitchell was acquired by WSH in October 2020 and rebranded as BM Caterers.

The compliance floor: what every caterer will check

The specific thresholds vary by caterer and are communicated privately. But the compliance baseline is consistent enough across the industry that you can prepare before the tender lands.

Insurance

Employers’ Liability insurance of at least £5 million is a legal requirement under the Employers’ Liability (Compulsory Insurance) Act 1969, with fines of up to £2,500 per day for non-compliance. Most policies default to £10 million.

Public Liability is not legally required but is commercially mandatory. Compass requires £2 million (low risk), £5 million (medium), or £10 million (high risk) for non-food contractors. Industry standard for hospitality staffing sits at £5-10 million.

Professional Indemnity is expected where vetting failures could trigger financial loss claims. Typical requirements for recruitment agencies run between £1-5 million. Vicarious liability extensions are critical for temp staffing because they cover the agency’s liability for placed workers’ actions.

Food safety training

HACCP is a premises-level requirement under Regulation (EC) 852/2004 (Article 5). The client operates the HACCP system. But supplied workers must be trained to work within it.

Level 2 Award in Food Safety in Catering is the standard minimum for all food handlers. Level 3 is required for supervisors, managers, and head chefs responsible for food safety. Recognised awarding bodies include CIEH, Highfield Qualifications, RSPH, City & Guilds, and Qualifi. Certificates are recommended for renewal every three years.

DBS checks

DBS requirements are site-dependent, not role-dependent.

Schools require Enhanced DBS with Children’s Barred List check. Care homes require Enhanced DBS with Adults’ Barred List, depending on contact frequency thresholds. NHS and hospital settings typically require Standard DBS for non-clinical roles like catering. Corporate offices, events, and restaurants may use Basic DBS at the hirer’s discretion, but there is no legal requirement. Our DBS checks guide covers the process and costs in full.

Right-to-work checks

Civil penalties for employing someone without the right to work run up to £45,000 per illegal worker on a first breach (tripled in February 2024) and £60,000 on a repeat. The agency must conduct prescribed checks, and PSL contracts typically make this an explicit warranty.

Accreditations

REC membership is the most commonly expected quality marker. REC represents 3,300+ member businesses covering 82% of the UK recruitment market by value. Members must pass a Compliance Assessment to join and re-pass every two years.

SafeContractor (Alcumus) is the most relevant SSIP scheme for private-sector hospitality, with 28,000+ accredited contractors. Compass requires SSIP for on-site contractors. CHAS is more relevant for public-sector catering contracts in schools, NHS, and local authority settings.

Everything else

Modern Slavery Act statements are mandatory for organisations with turnover above £36 million, but major caterers flow the requirement down to suppliers regardless of size. ICO registration is mandatory for all recruitment agencies (fees from £52/year for micro organisations). A written equality and diversity policy is routinely requested during supplier due diligence.

PAYE vs umbrella: what changed on 6 April 2026

This is the section that matters most if you are applying to a contract catering PSL right now.

The new joint and several liability rules

From 6 April 2026, if an umbrella company in your supply chain fails to account for PAYE and NIC correctly, HMRC can recover the liability from the recruitment agency. If there is no agency in the chain, liability falls on the end-client. The government estimates this will generate £895 million in additional tax revenue in 2026-27 and affects approximately 700,000 workers and 30,000 recruitment agencies.

The government’s own consultation response anticipated that “some agencies or end-client businesses may decide to operate their own payroll, rather than contract with an umbrella company.”

What caterers are likely to require

No major UK caterer has published a blanket ban on umbrella company workers. But the financial incentive to either mandate agency PAYE or restrict umbrella use to FCSA-accredited providers is now overwhelming. If the umbrella defaults, the caterer’s staffing agency pays the bill.

FCSA (Freelancer & Contractor Services Association) accreditation requires minimum two years’ trading, one year of full audited accounts, and annual reassessment. FCSA-accredited members cannot operate offshore schemes, loan schemes, or trusts. Gov.uk guidance instructs employment businesses to check the accreditation status of any umbrella company they work with.

HMRC enforcement is escalating

The Moir Management Services tribunal in November 2025 resulted in a £1.6 million penalty. The Elphysic Ltd case (Upper Tribunal, July 2025) involved £260 million across over 18,000 mini umbrella companies. HMRC has issued Spotlights 45, 55, 60, 64, and 71 targeting umbrella avoidance schemes. The GLAA has issued briefings urging organisations to remove MUC risk from supply chains.

The Employment Rights Act 2025

This received Royal Assent in December 2025. It redefines “employment business” under the Employment Agencies Act 1973 to include umbrella companies, brings them within the Conduct of Employment Agencies Regulations, and creates the Fair Work Agency (launching April 2026). Umbrella-specific regulation is expected from April 2027. Breaching Conduct Regulations is a criminal offence with unlimited fines.

For a deeper look at how agency pay models work and what the charge rate actually contains, see our temp chef rates breakdown.

KPIs and SLAs you will be measured against

Contract caterers rarely publish their staffing SLAs, but the structures are consistent across the industry.

Fill rate

95%+ is the aspirational threshold for hospitality temporary staffing. Below 70% typically indicates sourcing gaps that will trigger a performance review. Best practice is tracking two metrics: percentage fulfilment at shift start and percentage fulfilment two hours into the shift. The gap between those two numbers reveals your no-show and early-departure problem.

At Chefs Bay, we maintain 95%+ fulfilment and track every shift outcome. That number is auditable, not aspirational.

Response times

Published SLA templates from large UK buyers show a tiered response-time structure: one hour for bookings with less than one working day’s notice, two hours for one day’s notice, four hours for two to three days’ notice. Contract catering shift-fill operations follow the same pattern.

No-show controls

Typical mechanisms include credit notes for unfilled hours, free replacement within a specified timeframe (often two hours), and an escalation process running from warning to formal review to PSL removal. Financial penalties are less common in private-sector hospitality than in public-sector frameworks.

Timesheets and tech

Fourth Hospitality is the dominant workforce management platform in UK hospitality with 15,000+ customers across 120,000 sites. Agencies supplying temp staff to Fourth-using clients will typically work within Fourth’s timesheet and scheduling workflows. Sodexo uses UKG. Some clients operate bespoke portals or run through MSP/neutral-vendor platforms.

How to get onto a PSL (and the common reasons agencies fail)

The process

The typical path runs: supplier registration, pre-qualification questionnaire (covering trading history, financials, insurance, compliance documentation, accreditations, references, and candidate pool evidence), commercial evaluation, operational evaluation, contract award, then onboarding with a trial period of three to six months.

Timeline from tender submission to active supply is typically two to four months. Private-sector caterers can move faster (four to eight weeks from expression of interest).

Why agencies get rejected

The Supply Register reports that 61% of supply agencies fail their first audit and 25% fail on legal compliance items. The most common rejection reasons: insurance cover below client minimums, inadequate PAYE/tax controls, weak right-to-work processes, poor GDPR governance, inability to evidence food safety competence for supplied staff, and failure to align with the caterer’s supplier code on modern slavery and ethical standards.

Financial instability also kills applications. Agencies must pay workers weekly but may wait 30 to 60 days for client payment. If your credit rating or trading history cannot demonstrate you can bridge that gap, the application stops there.

How the Chefs Bay vetting stack maps to PSL requirements

At Chefs Bay, the PSL-ready stack sits inside the standard service, not as an upgrade. Every chef we place holds Enhanced DBS where the sector requires it, IDVT-compliant right-to-work on file, Level 2 Food Safety at minimum (Level 3 for supervisors), references, and our own insurance cover at the industry-standard thresholds. Contract catering and B&I bookings run inside a 4-hour response window for in-scope postcodes, backed by a 95%+ fulfilment rate across April 2025 to April 2026 and a no-place-no-fee commitment on in-scope work (ChefsBay placement data, Apr 2025-Apr 2026). We supply as an approved agency into Compass Group, Sodexo, Aramark, and Elior Group sites. Our 2-hour chef response covers central London, Manchester, and Liverpool postcodes 24 hours a day; for relief chef cover outside those zones, we commit to a realistic window at the moment of booking rather than an aspirational one after.

Competing against national agencies

Smaller agencies can win PSL slots by leading with compliance certainty and operational responsiveness. The April 2026 reforms make supply-chain due diligence more commercially critical, and a simpler model (agency PAYE, clear holiday pay handling, auditable payroll) is easier for caterers to vet than a complex umbrella chain.

Local candidate pools matter. National agencies often struggle with weekend cover in specific geographies. If you can fill the Saturday night gap in Manchester or Liverpool when the nationals cannot, that is your pitch.

Speed of decision-making helps too. A smaller agency without bureaucratic approval chains can confirm availability faster than a national with four layers of sign-off.

Frequently asked questions

What is a contract catering PSL?

A Preferred Supplier List (PSL) is the roster of staffing agencies that a contract caterer (Compass, Sodexo, Aramark, Elior, etc.) will book from for temporary kitchen cover. PSL suppliers have been through a procurement qualification process covering insurance, PAYE, compliance documentation, references, and operational capability. Agencies outside the PSL cannot supply workers to those sites.

How long does PSL onboarding take?

Typically 2 to 4 months from tender submission to active supply. Private-sector caterers can move faster, 4 to 8 weeks from expression of interest. The process runs: supplier registration, pre-qualification questionnaire, commercial evaluation, operational evaluation, contract award, then a trial period of 3 to 6 months.

What insurance minimums do contract caterers require?

Employers’ Liability at £10 million is standard. Public Liability typically at £5 to £10 million. Product Liability is usually bundled into PL for food-related claims. Professional Indemnity is increasingly required at £1 to £2 million for larger PSL contracts. Cover below these levels fails audit.

Why do 61% of staffing agencies fail their first PSL audit?

The Supply Register’s data points to five recurring reasons: insurance cover below client minimums, inadequate PAYE/tax controls, weak right-to-work processes, poor GDPR governance, and inability to evidence food safety competence across the bench. A sixth trigger is financial fragility: caterers pay agencies 30 to 60 days in arrears while agencies pay workers weekly, and weak credit ratings kill applications at the financial review stage.

What changes when the Fair Work Agency launches on 7 April 2026?

The Fair Work Agency consolidates Employment Agency Standards Inspectorate, GLAA labour abuse functions, and HMRC National Minimum Wage enforcement into a single body with joined-up intelligence. Agencies with clean compliance carry on as normal. Agencies with gaps between tax, right-to-work, and AWR handling now face one regulator where previously they faced three with separate remits.

Do I need to use Fourth Hospitality or UKG to be on a PSL?

Only if the caterer uses those platforms. Fourth Hospitality dominates UK hospitality workforce management with 15,000+ customers. Sodexo uses UKG. Some caterers operate bespoke portals. Ask during the PQQ which platform the client uses and whether API or manual timesheet submission is expected.

How often are PSLs reviewed?

Annual review is standard, quarterly performance tracking is typical. Agencies that consistently miss fulfilment targets or fail an unannounced compliance audit can be removed mid-cycle. Poor invoice accuracy and late submissions also trigger review flags, even if fulfilment numbers look strong.

What to do next

If you supply staff to contract caterers and want to understand where you sit against these requirements, start with insurance certificates, REC membership status, and your PAYE model. Those three things determine whether the conversation continues or ends at the PQQ.

If you are a contract caterer looking for a staffing supplier that already meets these standards, get in touch. We are approved suppliers for Compass Group (Constellation), Sodexo Live, Aramark, Thomas Franks, Elior, and OCS. The compliance paperwork is done. The question is whether our 95%+ fulfilment rate matches what you need.