What Are the UK Graduate Trainee, Service Supplier and Secondment Worker Routes?

The UK Graduate Trainee, Service Supplier and Secondment Worker visas are all part of the Global Business Mobility routes. They are designed for temporary work assignments in the UK, not for permanent migration. Each route has a different commercial purpose and different eligibility rules.

The Graduate Trainee route is for structured training programmes within multinational groups. The Service Supplier route is for overseas employees or self-employed professionals providing services under an international trade agreement. The Secondment Worker route is for workers transferred to the UK under a high-value contract between an overseas organisation and a UK sponsor.

All three require a licensed UK sponsor and a Certificate of Sponsorship. None of them lead directly to settlement. They are useful, but they are niche. The right route depends on the business model, the contract and the worker’s role.

What Are the Global Business Mobility Routes?

The Global Business Mobility routes are for workers based outside the UK who are undertaking a temporary work assignment in the UK. They include Senior or Specialist Worker, Graduate Trainee, UK Expansion Worker, Service Supplier and Secondment Worker.

These routes replaced the old Intra-company Transfer and related categories. They are more segmented. Each sub-route has its own conditions on salary, prior employment, contract type and maximum stay.

For businesses, the key point is that these routes are not general work visas. They are tied to specific corporate structures, trade agreements or high-value contracts. Using the wrong sub-route is a common error. The application may look complete, but the underlying commercial arrangement does not fit.

1. UK Graduate Trainee Visa

The UK Graduate Trainee visa is for employees on a structured graduate training programme who are being transferred to their employer’s UK branch. The role must be part of a managerial or specialist training pathway. It is not a general junior role.

The applicant must have worked for the sponsor outside the UK for at least three months immediately before applying. The job must be on the list of eligible occupations. The salary must meet the minimum requirement, currently at least £27,300 per year.

The visa is granted for up to 12 months, or the period on the Certificate of Sponsorship plus 14 days, whichever is shorter. It cannot be extended, but a further Graduate Trainee visa may be possible from outside the UK. There is a five-year maximum stay across several Global Business Mobility routes in any six-year period.

Who the Graduate Trainee route suits

• Multinational companies with formal graduate training programmes.
• Employees on a defined rotation or training track towards a managerial or specialist role.
• Businesses that want to bring trainees to the UK for a short, structured period without using the Senior or Specialist Worker route.

The route is not for general hires. A company cannot simply label a new joiner as a “graduate trainee” to fit this category. The programme must be genuine, structured and documented.

2. Service Supplier Visa

The Service Supplier visa is for overseas employees or self-employed professionals who are providing services to a UK business under a contract covered by a valid international trade agreement. The contract must fall within the UK’s trade commitments, such as those under the General Agreement on Trade in Services or other relevant agreements.

The applicant must have worked for the overseas employer for at least 12 months, or have at least 12 months’ professional experience if self-employed. The job must be eligible, or the applicant must show relevant qualifications and experience. A Certificate of Sponsorship from the approved UK sponsor is required.

Permission is granted for six or 12 months, depending on the trade agreement. The maximum stay on this route is limited, and there is a five-year cap across several Global Business Mobility routes in any six-year period. The visa does not lead to settlement.

Who the Service Supplier route suits

• Overseas service providers with contracts covered by UK trade agreements.
• Self-employed professionals based overseas who supply services under those agreements.
• UK businesses that need temporary specialist input from an overseas partner without hiring permanently.

The trade agreement element is critical. A standard commercial services contract is not enough. The contract must be covered by a relevant UK trade commitment. This is often the point where applications fail.

3. Secondment Worker Visa

The Secondment Worker visa is for existing employees of an overseas organisation that has a high-value contract with a UK sponsor. The worker is seconded to the UK to work for the sponsor under that contract. The overseas employer does not need to be part of the same corporate group as the UK sponsor.

The applicant must have worked for the overseas employer for at least six months outside the UK. The job must be on the list of eligible occupations. The UK sponsor must hold a valid Global Business Mobility sponsor licence and issue a Certificate of Sponsorship.

The visa is granted for up to 12 months at a time and can be extended once, to a maximum of two years. The five-year cap across several Global Business Mobility routes in any six-year period applies. There is no direct route to indefinite leave to remain.

Who the Secondment Worker route suits

• Overseas organisations with high-value contracts with UK businesses.
• Workers being temporarily transferred to deliver on those contracts.
• UK sponsors that need skilled workers from an overseas partner for a defined project.

The high-value contract threshold is important. The contract must meet the Home Office definition, including minimum value requirements. A small or medium-value contract will not qualify. This route is for substantial commercial arrangements, not routine outsourcing.

UK Graduate Trainee vs. Service Supplier vs. Secondment Worker

The three routes can look similar because all involve temporary work for a UK sponsor. The commercial basis is different, though. That difference drives the eligibility.

Feature	Graduate Trainee	Service Supplier	Secondment Worker
Purpose	Structured graduate training programme within a multinational group	Supply of services under an international trade agreement	Secondment under a high-value contract between overseas organisation and UK sponsor
Applicant status	Existing employee of the sponsor	Employee of overseas service provider or self-employed professional	Existing employee of overseas organisation with high-value contract
Prior work requirement	At least 3 months with sponsor outside UK	At least 12 months with employer or 12 months’ professional experience if self-employed	At least 6 months with overseas employer outside UK
Contract requirement	Internal graduate programme	Service contract covered by UK trade agreement	High-value contract between overseas organisation and UK sponsor
Maximum stay	Up to 12 months per grant; 5 years in any 6-year period across GBM routes	6 or 12 months depending on trade agreement; 5-year cap across GBM routes	Up to 2 years total; 5-year cap across GBM routes
Extension	Cannot extend; new application possible from outside UK	Limited; depends on trade agreement and cap	Can extend once up to maximum 2 years
Settlement	No direct route to ILR	No direct route to ILR	No direct route to ILR

The table shows the main differences. The Graduate Trainee route is internal and training-focused. The Service Supplier route is trade-agreement driven. The Secondment Worker route is contract-driven, but not limited to the same corporate group.

Common Eligibility Requirements for Graduate Trainee, Service Supplier, and Secondment Worker Visas

All three routes share some core requirements. The applicant must be at least 18. The UK sponsor must hold a valid Global Business Mobility sponsor licence. A Certificate of Sponsorship is required for each application.

The job must be on the list of eligible occupations, unless the applicant can rely on relevant qualifications and experience where the rules allow. The applicant must meet the financial requirement and pay the application fee and Immigration Health Surcharge.

Dependants may be permitted on all three routes, subject to the usual rules. The visas do not lead directly to settlement. Time spent on these routes counts towards the five-year cap across several Global Business Mobility categories in any six-year period.

Key Commercial and Contractual Differences Between the Three Routes

The Graduate Trainee route is intra-company. The sponsor and the overseas employer are the same legal entity or linked entities. The focus is on training and development within the group.

The Service Supplier route is cross-border services under a trade agreement. The UK sponsor is the client. The overseas employer or self-employed professional is the service provider. The contract must fall within the relevant trade commitment.

The Secondment Worker route is based on a high-value contract between an overseas organisation and a UK sponsor. The two organisations do not need to be in the same group. The worker is seconded to the UK sponsor to work under that contract.

Visa Duration, Extension Rules, and Annual Quota Caps for Each Route

The Graduate Trainee visa is granted for up to 12 months and cannot be extended. A new application is possible from outside the UK, but the five-year cap across Global Business Mobility routes still applies.

The Service Supplier visa is granted for six or 12 months depending on the trade agreement. Extensions are limited and subject to the overall cap. The route is designed for short-term service delivery, not long-term staffing.

The Secondment Worker visa can be granted for up to 12 months and extended once, to a maximum of two years. The five-year cap across several Global Business Mobility routes in any six-year period applies.

When to Use the Graduate Trainee, Service Supplier, or Secondment Worker Route

– Use the Graduate Trainee route when

• The worker is on a formal graduate training programme.
• The role is part of a structured pathway to a managerial or specialist position.
• The overseas and UK entities are part of the same corporate group.
• The assignment is temporary and training-focused, not a permanent hire.

– Use the Service Supplier route when

• The work is the supply of services under a qualifying trade agreement.
• The worker is an employee of an overseas service provider or a self-employed professional.
• The UK business is the client under the service contract.
• The arrangement is temporary and tied to the service contract.

– Use the Secondment Worker route when

• There is a high-value contract between an overseas organisation and a UK sponsor.
• The worker is an existing employee of the overseas organisation.
• The worker is seconded to the UK sponsor to work under that contract.
• The arrangement is temporary and linked to the contract’s delivery.

Common Application Mistakes and Misunderstandings to Avoid

• Treating the Graduate Trainee route as a general junior work visa.
• Assuming any services contract qualifies for the Service Supplier route without checking the trade agreement.
• Using the Secondment Worker route for a low-value or routine outsourcing contract.
• Overlooking the five-year cap across Global Business Mobility routes.
• Confusing these temporary routes with the Senior or Specialist Worker route or the Skilled Worker route.
• Failing to ensure the UK sponsor holds the correct Global Business Mobility licence.
• Assuming these routes lead to settlement.

These errors are avoidable. The rules are detailed, but they are consistent. The commercial arrangement must match the route. If it does not, the application will fail even if the paperwork looks complete.

Conclusion

The UK Graduate Trainee, Service Supplier and Secondment Worker visas are targeted temporary work routes within the Global Business Mobility family. They are not general work visas. Each has a specific commercial purpose and specific eligibility conditions.

The Graduate Trainee route is for structured training within multinational groups. The Service Supplier route is for services supplied under international trade agreements. The Secondment Worker route is for workers seconded under high-value contracts between overseas organisations and UK sponsors.

Choosing the correct route depends on the business model, the contract and the worker’s role. Using the right route from the start avoids unnecessary refusals and delays. These visas are useful, but they are niche. They should be used where they fit, not where they are simply convenient.