Experience You Can Trust. Advice You Can Act On.
An independent firm of Chartered Certified Accountants based in East Sussex, working with owner-managed businesses, entrepreneurs, private clients, Family Investment Companies and Personal Investment Companies.
Founded by Mark Underdown FCCA
Founded by Mark Underdown FCCA, the firm is built upon more than 20 years of professional practice experience and over a decade of leadership as a director within a well-established chartered accountancy firm. Mark is Director and Founder of MSU Advisory Limited.
We believe that modern accountancy should go beyond preparing accounts and filing tax returns. Our role is to help clients understand their numbers, plan ahead, manage risk and make better-informed decisions. Whether you need reliable compliance support, proactive tax planning, outsourced finance director expertise or practical business advice, we provide guidance that is commercially relevant and easy to understand.
Building Long-Term Client Relationships
At MSU Advisory Limited, we believe that the best results are achieved through strong, long-term relationships with our clients. We are far more than an annual compliance provider. Our aim is to become a trusted adviser and strategic partner, helping business owners make informed decisions and achieve their personal and commercial objectives.
We provide a highly personal and tailored service, taking the time to understand each client's circumstances, ambitions and challenges. By working closely with our clients throughout the year, we are able to provide proactive advice and support when it matters most, rather than simply reporting on historic results.
Regular communication allows us to gain a deeper understanding of our clients' businesses and identify opportunities to improve profitability, efficiency and long-term value. Whether the objective is business growth, wealth creation, tax efficiency, succession planning or preparing for an eventual exit, we help our clients navigate important decisions with confidence.
Our philosophy is simple: when our clients succeed, we succeed.
Many accountants focus on reporting the past. We focus on helping clients shape the future.
Professional Accreditation
MSU Advisory Limited is regulated by and registered with the Association of Chartered Certified Accountants (ACCA). As Chartered Certified Accountants, we are committed to maintaining the highest professional, ethical and technical standards.
Our ACCA firm profile can be viewed by clicking the button below.