Our passion is making yours profitable.
We’re not just your accountants, we’re your partners on the path to success.

Meet the Partners
At Mercantile Accounting, partners Antonio Dos Santos and Luc Janssens share a clear vision: to deliver expert, personalised accounting with a genuine partnership approach. As Chartered Accountants, they combine deep technical knowledge with real-world business insight, supporting UK startups and SMEs with everything from bookkeeping and tax to strategic financial advice.
Antonio and Luc believe that true success comes from strong relationships and practical guidance-not just compliance. Their hands-on, approachable style ensures every client benefits from direct access to experienced professionals who are invested in helping you grow and achieve your business ambitions
The Team

Antonio Dos Santos
Director
Qualifications
CA(SA), HDIP (Acc), B.Acc.Sci (Accounting and Tax)
Experience
Antonio is a Chartered Accountant with strong experience in audit, tax, and finance. He has worked with clients from SMEs to large listed companies, especially in the Tech and Media sectors. Antonio has also managed the accounts and tax for a portfolio of South African startups and SMEs before starting Mercantile Accounting.
Hobbies
Rock climbing, Mountaineering, Painting, Writing

Luc Janssens
Director
Qualifications
CA(SA), PGDA (Acc), B.Bus.Sci (Finance and Accounting)
Experience
Luc spent many years auditing multi-national companies, particularly in the Consumer Markets sector, which has informed a comprehensive knowledge of what it takes to build a successful business. Prior to this, he managed the accounts for multiple SME’s & start-ups in South Africa, before he moved to Mercantile Accounting.
Hobbies
Running, Football, Photography, Cooking, Entrepreneurship

Byro Shivam
Junior Accountant
Qualifications
BA(Hons)Business Accounting and Finance, Advance Technical Training in Accounting, Accounting Course for Accounts Clerk, QuickBooks Certified ProAdvisor
Experience
Shivam is a Business Accounting and Finance graduate with a wealth of experience across payroll, taxation, audit, trusts accounting, and financial reporting. He is currently focusing on financial management in advisory roles.
Hobbies
Swimming, Hiking, Photography

Adri van der Walt
Junior Accountant
Qualifications
Currently studying for an International Diploma, NQF Level 6 in Financial Accounting via ICB (Institute of Certified Bookkeepers)
Experience
With +6 years of experience in accounting, Adri have developed a strong skill set across a broad range of financial functions, including bookkeeping, trial balance preparation, and VAT return submissions. Her expertise extends to tax and payroll management, ensuring accurate and compliant financial reporting.
Hobbies
Beauty, Makeup, Music
Tech First Accounting
As an authorised partner of Xero, QuickBooks and FreeAgent, we ensure that your financial operations run smoothly and are optimised for success using their state-of-the-art financial software.
Whether you're a small business owner or a large corporation, we're dedicated to delivering precise, efficient, and personalised solutions tailored to your specific needs. No matter how large the project we have you covered.
Let years of experience and countless official certifications put your mind at ease to know you are getting the possible service. Trust us to help you make your balancesheet vision a reality.