Certificates of Sponsorship
Supporting sponsors through the CoS process
Certificates of Sponsorship are an important part of the UK sponsorship process, but they are not simply an administrative step. In many cases, the more important issue is whether the role, immigration route and wider sponsorship arrangements have been considered properly before a request is made.
We advise businesses on Certificates of Sponsorship across all sponsored work routes, most notably Skilled Worker and Global Business Mobility. Our support covers both the preparation of requests and the assignment process, helping organisations avoid common pitfalls, manage compliance risk and support visa applications effectively.
Whether you are a first-time sponsor or an established licence holder, we provide clear, practical advice tailored to your organisation’s needs. Our aim is to help you make informed sponsorship decisions and manage Certificates of Sponsorship with confidence.
To discuss your requirements and how we can assist, please provide your details on the contact form for a call back.
Who we can help: UK employers with global entities, their employees and dependants
Certificate of Sponsorship requests: advice on the role, route, salary and sponsorship arrangement before a certificate is requested
Assignment support: assistance with assigning Certificates of Sponsorship correctly and in line with sponsor duties
Compliance Response: assistance and preparation of compliance responses when additional information has been requested during a CoS request
Route-specific guidance: support across Skilled Worker, Global Business Mobility and other sponsored work routes
Reducing errors and risk: practical advice to help avoid refusals, delays and wider sponsor compliance concerns

Why Choose Sussex Immigration Services?
Your future deserves expert care, not guesswork
At Sussex Immigration Services, immigration is never treated as just paperwork. Every case represents real lives, families, and futures. That’s why your matter is handled personally, carefully, and in line with the highest professional standards.
Fully regulated and accountable
Sussex Immigration Services is regulated by the Immigration Advice Authority (IAA) at Level 3, the highest level. This means you receive advice that is lawful, ethical, and properly supervised, with clear professional accountability at every stage of your case.
Direct access to your lawyer
Your case is handled personally by Kirstin Caspersen, the company’s Managing Director and Principal Adviser, from your first consultation through to completion. You won’t be passed between departments or junior staff. This ensures consistency, attention to detail, and a clear understanding of your circumstances throughout.
Clear, honest advice
UK immigration law is complex and constantly evolving. You will receive clear, straightforward advice tailored to your specific situation, including realistic assessments of your options, risks, and prospects. There are no guarantees and no false promises — just honest, professional guidance.
Careful and structured case preparation
Strong immigration outcomes rely on careful preparation. Each application or matter is approached methodically, with close attention to evidence, documentation, and procedural requirements.
Professional integrity and transparency
Fees are explained clearly in advance. You will be quoted a fixed fee for your application, with clear terms and payment schedule set at the outset of your case. You will always be told honestly if a case is weak or unsuitable to proceed. Your best interests, not volume or sales, come first.
Local service with wider reach
Based in East Sussex, Sussex Immigration Services assists clients locally, across the UK, and overseas. Wherever you are, you can expect the same careful, professional approach and commitment to your case.
Sussex Immigration Services Limited is authorised and regulated by the Immigration Advice Authority (IAA) at Level 3. Always work with a regulated immigration adviser. Click the IAA logo to verify our registration.
