About Us
One team across three countries since 1996
Cross-border accounting and advisory expertise connecting Turkey, Hungary and the United Kingdom.
Our Manifesto
A strategic partner behind the numbers
TBCAS is not a bookkeeping firm that only keeps score. We read the story behind the numbers and bring a strategic partner to your management decisions.
With three decades of experience and a network across three countries, we walk alongside Turkish entrepreneurs on their international journey. Istanbul's dynamic economy, Hungary's gateway to Europe and London's global financial centre — we unite three points under one discipline.
Our Story
A vision that began in London, 2005
Founded in 1996 in Istanbul as an accountancy practice, TBCAS took on a new dimension when our founder Murat Zengin earned his Chartered Certified Accountant title in London in 2005. Cross-border advisory became our primary focus from that moment on.
In 2012 we opened our office in Budapest and expanded into Central Europe. Today, with over 30 years of know-how, we deliver end-to-end solutions for SMEs, e-commerce entrepreneurs and family businesses.
Our Mission
A fair, sustainable and people-centred trade culture
TBCAS works to build a fair, sustainable and people-centred trade culture by supporting the economic, ethical and social development of individuals and businesses.
- Providing entrepreneurs with accurate information, guidance and training
- Strengthening SMEs financially while keeping them anchored to ethical values
- Building an information bridge between government, private sector and society
- Encouraging earnings not just to grow a business but to grow others with it
Our Vision
A new European-rooted, universally valued approach to trade
To build — in the light of knowledge, under the guidance of justice and on the foundation of human dignity — an ethical, sharing and sustainable economy.
- Becoming the reference brand in ethical advisory across Europe
- Developing exemplary value-driven business models for SMEs and entrepreneurs
- Spreading the NIEBDA approach that combines economic growth with social benefit
Our Values
How we work
Transparency
A reason for every decision, a source for every number. We explain what we do and why.
Long-term Relationship
Not one-off transactions — decade-long partnerships. 80% of our clients have been with us for 5+ years.
Technical Depth
Rather than generic answers, solutions grounded in the detail of legislation. Each country has its own nuance.
Quiet Discipline
No flashy promises — regular results. Every month, every quarter, every year — the same quality.
Sustainability
Every decision is made with respect for the future. Economic, environmental and social balance held together.
Client Satisfaction
Every client is a long-term companion, not a short-term transaction.
Love and Light (SGI)
At the centre of our work sits love — the Sevgi ve Işık philosophy.
Our Roadmap
A three-phase development vision
The path TBCAS will follow in the coming period — a three-phase plan from founding discipline to international integration.
Foundation & Corporate Infrastructure
Completion of brand identity, internal operations and digital infrastructure; building team, offices and service standards.
- Operational core team across three countries
- Cloud-based client portal
- Service standards and ethical framework
Growth & Market Expansion
Active presence across European markets, deepening SME and entrepreneur portfolio, widening education and intermediation services.
- EU-centred e-commerce and export network
- Entrepreneur education academy
- Public–private intermediation protocols
International Integration
The NIEBDA approach becomes a Europe-wide reference model; strategic partnerships, corporate governance and sustainable impact.
- Pan-European ethical advisory network
- Academic and institutional partnerships
- Sustainable impact reporting
Our Founder
Murat Zengin
Founder & Chartered Certified Accountant
A graduate of Istanbul University Business School, Murat Zengin has been working in the accounting and tax world since 1996. He earned the Chartered Certified Accountant (ACCA) designation in London in 2005, laying the framework for his international expertise.
Fluent in Turkish, English and Hungarian, Murat is an expert in tax treaties and corporate structuring between the three countries. He personally runs our Budapest office and plays a direct role in strategic client relationships.
"Opening offices in three countries isn't enough — you have to internalise the legislation, the culture and the way business is done. That's exactly where TBCAS is different."
Our Team
A core team of specialists across three countries
Our team consists of accountants, tax advisors and legal support specialists fluent in each country's local legislation. We operate in Turkish, English and Hungarian.