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3D Corporate Law  ·  Sydney, Australia  ·  38 years at the senior level

Corporate law
from the inside out.

Partner-level corporate and M&A lawyer. Eight years as GC, Director and Company Secretary of a world-leading cybersecurity company. The lawyer who has been in your seat.

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8
Years as GC, Director & Co-Sec, cybersecurity and med-tech sectors
38
Years of deals, 29 as partner or principal
ASX
Board Director, listed company
Deep experience
International and leading Australian law firms World-leading cybersecurity company ASX listed directorships
I —
Outside counsel depth
Baker McKenzie trained. 29 years as a partner or principal. Asialaw Leading Lawyers 2016, 2017 & 2018. M&A, capital markets and governance across Australia, Asia and internationally.
II —
Inside counsel perspective
Eight years as General Counsel, Director and Company Secretary of VeroGuard Systems (now Keyek) — a world-leading cybersecurity company founded by the inventors of mobile EFTPOS and the world’s first ATM machines.
III —
Founder commercial reality
Embedded with founding R&D teams navigating the full lifecycle of deep-tech startups — from first patent to globally patented technology platform. GC, Director and Co-Sec of two deep-tech startups simultaneously.
David Walker — Principal, 3D Corporate Law
David Walker — Principal, 3D Corporate Law
“The three dimensions of 3D Corporate Law are the three things your lawyer usually only has one of.”

I spent nearly 30 years as a corporate lawyer and then partner at leading international and Australian law firms advising on M&A, capital raises, governance and complex commercial matters across Australia, Asia and internationally.

Then I spent eight years inside a world-leading cybersecurity company and also a medical-radiation device technology start-up, both as General Counsel, Director and Company Secretary. I sat on the board. I advised the CEO. I learned what founders, boards and investors actually need from a lawyer — not as an observer, but as a participant.

I hold a Masters of Taxation (Melbourne University), a Diploma of Applied Finance (Securities Institute), and a combined LLB (Hons) / BA (University of Tasmania). I use AI legal technology to deliver faster, more cost-efficient outcomes on document-intensive matters.

Baker McKenzie — Sydney & Hong Kong
National Corporate Group Leader and Executive member national law firm
GC, Director & Co-Sec — VeroGuard Systems (now Keyek)
ASX Board Director — eChoice Limited
Atanaskovic & Hartnell — leading boutique corporate & commercial firm
BA/LLB (Hons), Uni of Tasmania & Masters of Taxation, Melbourne University
Practice areas
Where 3DCL adds value
All enquiries welcome →
M&A
Mergers & acquisitions
Full-transaction advisory — structuring, due diligence, foreign investment, competition law compliance, negotiation and documentation, public and private targets, domestic and cross-border.
Capital & fundraising
Equity and debt raising, private equity, venture capital, managemeent equity, shareholder and unitholder agreements, convertible notes, SAFE structures, preference shares, ASX Listing Rules compliance, FIRB and all implementation documentation.
Tech & cybersecurity
Corporate advisory for technology companies and cybersecurity businesses — with eight years embedded inside the industry as GC and board director.
Governance & boards
Director duties, governance frameworks and compliance, board reporting, company secretarial function, ESOP structures and risk frameworks for listed and private companies.
Commercial contracts
Commercial arrangements, complex multi-party agreements, trusts, cross-border structures, technology licensing, IP arrangements, joint ventures and all commercial documentation.
Energy and Resources
Gas, oil and mining infrastructure, extraction, transportation and royalty contracts, operation arrangements, exploitation, joint ventures, financing and M&A.
Outsourced General Counsel
Ongoing strategic legal support for companies that need GC-level counsel without a full-time hire. Fractional, flexible, and always senior.
Key sectors
The areas 3DCL services
3DCL focuses on the areas of corporate and commercial law which are of particular importance to SME clients and their advisers. Our emphasis is on delivering legal excellence and client objectives using a commercial, results orientated, approach.
Sectors include
Technology
Start-ups and private equity
Cybersecurity
Agribusiness
Gas and mineral resources
Finance
IT&T and media
What clients say
The 3DCL Difference
“
David brings something rare to the table: the perspective of someone who has advised externally at the highest levels and has also genuinely sat in the GC chair inside a technology company. He understands the commercial pressures, not just the legal ones.
Founder & CEO
Deep-tech startup, Melbourne
“
We needed senior M&A counsel who could move at startup pace. David delivered partner-level quality on every matter and was available when it mattered most.
CFO
Public unlisted technology company
“
What sets David apart is that he thinks like a board member, not just a lawyer. His governance advice has been invaluable as we’ve scaled.
Non-Executive Director
Insights
From David’s desk
Published on LinkedIn — follow for regular commentary on M&A, governance, cybersecurity law and startup legal practice.
M&A · 3DCL
Why I started 3DCL
I spent nearly 30 years as a corporate law partner at firms including Baker McKenzie, Holding Redlich and Allion Partners, including 5 years as a special counsel at Atanaskovic Hartnell.
Read on LinkedIn →
Me · Law
Why I have been quiet
I've been quiet on LinkedIn for a while. Here's why — and what's changed.
Read on LinkedIn →
M&A
The Deal Terms That Matter More Than Your Valuation
Most founders focus on valuation first, legal terms second. Understandable - it's the number in the press release, the one that validates years of work. But after enough transactions, I'll say it plainly: valuation isn't what determines what you actually receive. The terms underneath it are. Many reach the table without a clear view of what those terms do.
Read on LinkedIn →
Get in touch
Begin a conversation

No obligation. Senior Partner-level lawyer from the first call. I work with founders, boards, and investors who want a lawyer who understands what they’re trying to build.

T +61 413 670 026
E davidw@3dcorporatelaw.com.au
W 3dcorporatelaw.com.au
in linkedin.com/in/david-walker-46b30713
Thank you — David will be in touch within one business day.
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