About Astana
Who we are
A Singapore-based group of member firms for audit, accounting, tax and corporate services, built on values rooted in tradition.
Our story
From one audit firm to a group
Nas Chartered Accountants was founded in 2018 by Mohammed Nasir Bin Sawal to serve companies that create impact through purpose, ethics and sustainability.
As our clients grew, they asked us for more than an audit. Today Astana Group brings audit, accounting, tax and corporate services together under one brand, while each member firm stays separate and independent.
Our mission
To create a better world for everyone to live in by empowering businesses driven by purpose and impact.
Trust
We hold your records and confidences as a trust, returned in full.
Truthfulness
Our reports and opinions say what is true, even when it is unwelcome.
Justice
Fair fees, fair dealing and independence in every opinion we sign.
Excellence
Work done carefully and well, as if it will be weighed — because it is.
Benefit to others
We measure success by the businesses and communities we leave stronger.
Our people
Leadership
Mohammed Nasir Bin Sawal
Group CEO, Astana Group
Managing Partner, Nas Chartered Accountants
FCCA, CA (Singapore) · Public Accountant
Founded Nas Chartered Accountants in 2018 after a career in commercial crimes investigations and then in audit and assurance. Leads the group's audit practice and its strategy.
Ibrahim Adediran Opeyemi
Partner
FCCA · CIFE · MSc Islamic Finance (INCEIF)
Leads Islamic finance, IFRS and enterprise technology work, and the group's reach into Malaysia, Africa and the Middle East.
Governance
Our member firms
Each member firm is a separate legal entity with its own registrations, and every engagement letter names the firm contracting with you.
| Member firm | What it does | Registration |
|---|---|---|
| Astana Holding Pte. Ltd. | Group holding company | UEN 202645538D |
| Astana Accounting Pte. Ltd. | Accounting, tax and advisory | UEN 202645544M |
| Astana Pte. Ltd. | Corporate secretarial and ACRA compliance | ACRA-registered CSP No. FA20260246 |
| Nas BizAdvisory Pte. Ltd. | Group services: people, systems and infrastructure | UEN 202139150M |
| Nas Chartered Accountants | Audit and assurance; becomes Astana Assurance PAC from April 2027 | Public accounting firm registered with ACRA · UEN T26PF0004H |
Nas Chartered Accountants, and Astana Assurance PAC after it, is a separate public accounting entity and is not owned by Astana Holding Pte. Ltd. Non-audit services to audit clients are subject to independence review.
Our offices
Astana Group
18 Kaki Bukit Road 3, #03-14
Entrepreneur Business Centre
Singapore 415978
Nas Chartered Accountants
Ocean Financial Centre, Level 40
10 Collyer Quay
Singapore 049315
Also in
Malaysia
Nigeria