Belian Advisory helps organisations assess exposure, advise on defensible controls, and assure stakeholders — with the clarity of a firm that plans for the long term, not just the next audit cycle.
Structured risk and control assessments that separate genuine gaps from paperwork gaps.
Pragmatic recommendations sized to your risk appetite, budget, and regulatory obligations.
Evidence, documentation, and reporting that stand up to auditors, regulators, and boards.
Governance structures for organisations deploying or procuring AI, built ahead of the regulatory questions rather than in response to them.
Independent evaluation of security posture and technical controls across cloud, hybrid, and on-premise environments.
Practical guidance to meet regulatory and standards-based obligations without over-building.
Direct engagement, no layersYou work with the person doing the assessment — not a rotating bench of juniors.
Built for scrutinyEvery recommendation is written to survive a board question or a regulator's follow-up.
Sized to the risk, not the retainerRecommendations match your actual exposure and budget — not a template engagement.
Belian — a dense, decay-resistant hardwood used across Southeast Asia for structures meant to last generations — is the namesake for a firm that treats governance the same way: not a compliance exercise to pass once, but a structure built to hold.
Belian Advisory is led by Vincent Toh, who spent over 27 years building and defending enterprise security architectures before moving into advisory work full-time. Most recently, he led regional cybersecurity solution architecture and presales at Lumen Technologies (formerly CenturyLink), managing an 8-person solution architecture team across APAC and advising executive leadership and customer boards on cyber risk posture, the Singapore Cybersecurity Act, and PDPA. Earlier roles at Orange Business Services, IBM, CSC Technology, and Savvis included designing secure network and cloud architectures for enterprise and financial services clients across Asia.
Certified: CISSP · CCSP · CEH · ISO 27001 Lead Auditor · ISO 42001 Lead Implementer Practitioner · TOGAF · AWS Certified Solutions Architect – Associate · CCNP
— Sun Tzu, The Art of War故用兵之法，无恃其不来，恃吾有以待之；无恃其不攻，恃吾有所不可攻也。
"The art of war teaches us to rely not on the likelihood of the enemy's not coming, but on our own readiness to receive him; not on the chance of his not attacking, but rather on the fact that we have made our position unassailable."
Whether you need a single assessment or an ongoing advisory relationship, the first conversation is free and unscripted.