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Weerawong C&P

weerawongcp.com ↗

Thai law firm handling M&A, competition, disputes, and big government contracts.

Defensible for now
Assessed 30 July 2026 · Evidence as of 30 July 2026
Real protection, with named pressure against it.
On the recordSince 30 July 2026 · Checkable from late 2026 / early 2027 · Every call on the record Checkpoint: Chambers and Legal 500 practice-area band refresh
The call

Government ties and a rare regulatory seat hold the firm's core work in place, while partner departures to rivals like TTT & Partners and Chandler Mori Hamada keep chipping at its bench.

Weerawong C&P is a Bangkok-based law firm that handles big deals, regulatory matters, and government contracts for major clients like energy companies and infrastructure projects. It is hard to replace because Thai law requires local bar membership, the firm has real relationships with trade regulators and government agencies, and Thai courts trust established local firms more than foreign ones. However, four senior lawyers have left in three years to start or join rival firms like TTT & Partners and Chandler Mori Hamada, which means the partnership is shrinking and younger lawyers may leave too if the best leaders are gone. AI tools like Luminance are also cutting into profits on routine contract work by doing it faster, which affects all firms including this one.

Why
01
AI pressure: Luminance AI contract-review platform. Weerawong adopted Luminance itself in Sept 2025 for contract review, cutting routine hours it can bill even as it saves cost. Could AI do the core job? Unlikely.
02
Bigger players: Baker McKenzie. Baker McKenzie runs a 250-lawyer Bangkok office and holds Band 1 in M&A and antitrust where Weerawong sits Band 2/3. Could a giant copy it? No, they are blocked.
03
What protects it. A sole seat advising Thailand's Trade Competition Commission plus live mandates on the EEC rail PPP and PTT energy deals keep government-linked work flowing to it.
What would change this call
Any additional senior partner departure from Weerawong C&P within 12 months of May 2026. Would confirm accelerating attrition beyond the two 2023 and two 2026 exits already recorded.
Chambers/Legal 500 late 2026 or early 2027 refresh shows band downgrade in two or more practice areas. Would show client-facing reputational damage from the partner exits, not just internal turnover.
Chandler Mori Hamada or Baker McKenzie announces hire of another Weerawong practice head. Would indicate targeted, ongoing poaching rather than isolated departures.
Key numbers
  • 16 partners, 100+ lawyers total (2026)
  • Baker McKenzie Bangkok office: ~250 lawyers (2026-03-22)
  • 2 senior lawyers left for Chandler Mori Hamada (2026-05-06)
Named risks
  • Four senior lawyer departures in three years erodes practice depth and partnership pipeline. Severity: high
  • Industry-wide AI adoption compressing chargeable hours on routine contract and due-diligence work. Severity: medium
  • Band 2/3 ranking status behind Baker McKenzie and other Band 1 firms limits top-tier mandate capture. Severity: medium
  • Reliance on government and SOE mandates (EEC, PTT) exposed to regulatory or political shifts. Severity: low
Rivals, as read in July 2026
RivalDirectionEvidence
Baker McKenziecontestingHolds Band 1 in Corporate/M&A and Antitrust vs Weerawong's Band 2/3, ~250 lawyers as of 2026-03-22
Chandler Mori Hamadagaining onPoached a corporate/M&A partner and banking/finance counsel from Weerawong C&P in April-May 2026
TTT and Partnersgaining onFounded in 2023 by two former Weerawong C&P practice heads, direct boutique rival
Questions people ask
Is Weerawong C&P profitable?
As a private Thai law partnership, Weerawong C&P discloses no audited financials. ZoomInfo estimates its annual revenue at approximately $24.1 million with 113 employees as of 2026, an unverified third-party aggregator figure rather than a company-confirmed number.
Could AI replace Weerawong C&P's lawyers?
Unlikely for core work. Weerawong C&P adopted Luminance's AI contract-review platform in September 2025, the first Thai firm to do so, but licensed courtroom advocacy, liability-bearing opinions and Thai-bar credentials remain outside AI's reach even as routine contract review faces industry-wide margin pressure.
Who is Weerawong C&P's biggest competitor?
Baker McKenzie, which runs the largest international law-firm office in Thailand with roughly 250 lawyers as of March 2026 and holds Band 1 rankings in Corporate/M&A and Competition/Antitrust, areas where Weerawong C&P sits Band 2 or 3.
Who owns Weerawong C&P?
It is a private Thai partnership with no external investors or public listing. As of 2026, its senior partners are Sunyaluck Chaikajornwat and Sakchai Limsiripothong, leading a firm of 16 partners and over 100 lawyers based in Bangkok's Park Silom Tower.
What government work does Weerawong C&P handle?
The firm acts for the Office of the Eastern Economic Corridor on the high-speed rail PPP linking Don Mueang, Suvarnabhumi and U-Tapao airports as of March 2026, advises PTT Public Company Limited on cross-border energy deals, and holds a unique advisory seat with Thailand's Trade Competition Commission.
Has Weerawong C&P adopted AI tools?
Yes. In September 2025 it became the first Thai law firm to deploy Luminance's AI-based contract-review platform, using it to speed document review and due diligence, though no third-party verification of efficiency gains has been published.
Timeline
  • 2026-05-06Corporate/M&A partner and banking/finance counsel leave Weerawong C&P for Chandler Mori Hamada
  • 2026-04-20Thai SEC-led focus group discusses tender-offer exemption amendments expected 2026-2027
  • 2026-03-22Thailand Law Firm Awards 2026 cites Weerawong C&P's EEC high-speed rail PPP mandate
  • 2025-09-18Weerawong C&P becomes first Thai firm to adopt Luminance AI contract-review platform
  • 2023-11-14Weerawong C&P advises Innoquest Diagnostics on approximately THB 220 million acquisition
  • 2023Two former practice heads leave Weerawong C&P to found rival firm TTT and Partners
  • 2022-08-16Weerawong C&P advises PLAN B Media on approximately THB 2.88 billion acquisition
  • 2009-01-01Weerawong C&P established as spin-off of White and Case's Bangkok office
Revision history
30 July 2026
First assessed. Defensible for now. The text above is fixed as of this date and is not edited afterwards.
In the same band
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