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About VALLARIS™

We Are The Architects of FastWealth™

VALLARIS is not a traditional advisory firm. We are a strategic M&A studio built for one purpose: to architect and execute the deals that build extraordinary wealth for entrepreneurs and investors.

We move beyond advice to become your partner in execution, transforming the complex journey of mergers and acquisitions into a clear, disciplined path to financial legacy.

The VALLARIS™ Difference: Measurable Impact

$5.1B Deals Reviewed

Your strategy is built on a foundation of market-wide intelligence, not guesswork.

$2.0B Capital Raised

We secure the fuel to power your growth and acquisition ambitions.

100% Dispute Resolution

We protect your assets and ensure smooth transitions, preserving your wealth and your peace of mind.

+19.7 Hours Freed Per Week

Our ultimate value: we give you your most precious asset back—your time, allowing you to focus on vision, not just operations.

Our Valued Partners:

Chartered Accountants Worldwide logo
TGS logo
Worldwide Independent Lawyers League logo
Siong Yoong

A Message From The Founder

I'm Siong Yoong, founder & CEO of VALLARIS™

For nearly three decades, I've served as a strategic partner in mergers, acquisitions, and venture capital. I've witnessed a consistent truth: most M&A deals fail not due to a lack of opportunity, but due to a failure in strategy.

Value destruction, cultural misalignment, and flawed integration - these are the forces that erode wealth. My mission is to disarm them.

My experience is not just in advising boards across Singapore, Asia, and the globe. It is in delivering outcomes that withstand the highest scrutiny—from the Singapore Exchange and Hong Kong Stock Exchange to the Supreme Court.

This rigorous, results-proven approach is the foundation of VALLARIS. It is how we transform the inherent complexity of M&A into your most predictable path to FastWealth™.

Let's build your legacy with precision.

— Siong Yoong

Standards and Technical Committee, Institute of Valuers and Appraisers of Singapore (IVAS)

Advisory Roles

Financial Reporting Surveillance Programme, Accounting and Corporate Regulatory Authority (ACRA)

Speaker and Trainer, Intellectual Property Office of Singapore (IPOS)

Investigation and Disciplinary Panel, Institute of Singapore Chartered Accountants (ISCA)INFLUENCERS

Speaker and Facilitator, Singapore Academy of Law.

Fellow of the Asia Pacific Institute of Experts (FAPIEx)

Credentials

Certified Patent Valuation Analyst (CPVA)

Fellow Chartered Accountant of Singapore (FCCA)

Fellow of the Association of Chartered Certified Accountants (ACCA)

Bachelor’s of Engineering degree from Nanyang Technological University (NTU)

Chartered Valuer and Appraiser (CVA) with the Institute of Valuers and Appraisers of Singapore (IVAS)

IP Valuation Expert, World Intellectual Property Office-Intellectual Property Office of Singapore

Membership and Standards Recognition Committee (MSRC), International Valuation Standards Council (IVSC)

Standards and Technical Committee, Institute of Valuers and Appraisers of Singapore (IVAS)

Financial Reporting Surveillance Programme, Accounting and Corporate Regulatory Authority (ACRA)

Inquiry Panel, The Law Society of Singapore

Speaker and Trainer, Intellectual Property Office of Singapore (IPOS)

CREDENTIALS:

Fellow, Asia Pacific Institute of Experts (FAPIEx)

IP Valuation Expert, World Intellectual Property Office-Intellectual Property Office of Singapore

Certified Patent Valuation Analyst (CPVA)

Chartered Valuer and Appraiser (CVA), Institute of Valuers and Appraisers of Singapore (IVAS)

Fellow Chartered Accountant of Singapore (FCA)

Fellow Chartered Certified Accountant (FCCA)

Bachelor’s of Engineering degree from Nanyang Technological University (NTU)

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Meet Your Strategic partners

At VALLARIS we believe a great deal alone isn't enough.

It requires a world-class team to architect, negotiate, and execute the strategy that transforms opportunity into tangible wealth.

That’s where we come in.

Vallaris team member
Vallaris team member
Siong Yoong
Vallaris team member
Vallaris team member

There ARE no self-made millionaireS.

Only TEAM-made Legacies.

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We are the strategic partners for founders and CEOs who are ready to Make Your Move™. We provide the contrarian insights, the rigorous execution, and the seasoned judgment to navigate the complexities of M&A, ensuring you don't just close a deal - you unlock a new tier of financial freedom.

2500+ successful cases

15+ years experience

World class experience

Serving businesses

from all over the world

Serving businesses worldwide
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 VALLARIS™ refers to the VALLARIS network and/or one or more of its member firms, each of which is a separate legal entity. Content on this site is solely intended to provide general information and does not provide any advice or create any relationship, whether legally binding or otherwise. Please consult your advisers for specific advice.