Castillo Laman Tan Pantaleon & San Jose

What Castillo Laman Tan Pantaleon & San Jose does

Castillo Laman Tan Pantaleon & San Jose is a full-service Philippine law firm founded in 1981 and headquartered in Makati City. The firm operates as a professional partnership with 50+ lawyers plus paralegals, organized across five practice areas: Corporate Law & Special Projects, Litigation & ADR, Intellectual Property, Labor & Immigration, and Taxation. It serves both domestic Philippine clients and international corporations, with notable mandates including counsel for the CRH plc-Holcim merger, KEPCO Ilijan's Philippine power operations, Pilipinas Shell, and World Bank/IFC advisory work, alongside major project finance deals such as the Project Shogun $480 million refinery financing.

The firm generates revenue through fee-for-service legal engagements including transactional work, litigation, advisory retainers, and specialized IP prosecution. Engagement economics are anchored by long-cycle, high-value mandates in project finance, M&A, and regulatory matters, supplemented by recurring labor compliance and IP prosecution work. Pricing follows hourly fee and retainer arrangements typical of a full-service law firm. The firm sources mandates through referral-driven distribution, leveraging 44 years of brand equity, marquee deal credentials, and relationships with international co-counsel (including Milbank LLP and Meer Law) for cross-border matters.

The firm is privately held with no parent company and no external funding rounds. Leadership currently comprises Managing Partner Mel A. Macaraig and Co-Managing Partner Alvin O. Geli, with Enrique W. Galang serving as senior partner; on January 1, 2026 the firm admitted three new partners, signaling an active succession and capacity-expansion phase. External recognition includes the Asian Legal Business 2025 Project Finance Deal of the Year and the 2024 Global Law Experts Labor Law Firm of the Year designation. Geographic footprint is concentrated in the Philippines, with cross-border reach enabled through co-counsel networks rather than owned international offices.

Name

Castillo Laman Tan Pantaleon & San Jose

Legal name

Castillo Laman Tan Pantaleon & San Jose Law Offices

Website

https://cltpsj.com.ph

Company type

Private

Founded year

1981

Operating status

Operating

Headcount range

11–50 employees

Short description

Castillo Laman Tan Pantaleon & San Jose is a full-service Philippine law firm founded in 1981 in Makati City, with 50+ lawyers across five practice areas (corporate, litigation, IP, labor, taxation) serving domestic and international clients in project finance, M&A, and advisory matters.

Ownership category

akta.pro rank

Product category

Legal Services

NAICS

Offices of Lawyers (541110), Legal Services (5411)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Corporate & Commercial Law (BPAHAAAA)

akta.pro secondary industries

Mergers & Acquisitions (M&A) & Securities Law (BPAHAAAI), Patent Prosecution & Portfolio Management (BPAHAMAA), Immigration Law (BPAHAAAL), Real Estate & Construction Law (BPAHAAAE)

Keywords

• Corporate legal services
• Litigation and arbitration
• Intellectual property law
• Tax advisory services
• Labor and immigration law

Headquarters

HQ city

Makati

HQ country

Philippines

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure

Revenue model

1. Professional Legal Services: Fee-based legal services including hourly billing, retainer arrangements, and project-based fees for corporate law, litigation, IP, labor, and taxation matters.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Castillo Laman Tan Pantaleon & San Jose is a full-service Philippine law firm delivering legal counsel to local and international clients across five practice areas: Corporate Law and Special Projects (including M&A, banking, project finance, securities, and infrastructure), Taxation (advisory, planning, litigation, and estate planning), Intellectual Property (registration, prosecution, licensing, and enforcement), Litigation and Alternative Dispute Resolution (civil, commercial, criminal, tax litigation, arbitration, mediation), and Labor and Immigration (employment disputes, compliance, work permits, visa processing).

Product overview

Castillo Laman Tan Pantaleon & San Jose is a full-service Philippine law firm organized into five core practice areas: Corporate Law & Special Projects, Taxation, Intellectual Property, Litigation & Alternative Disputes Resolution, and Labor and Immigration. These practice areas function as interconnected service lines that share resources and expertise, enabling the firm to provide integrated legal counsel across multiple domains.

Differentiator

Problem solved

Functional benefit

Products and services

• Corporate Law and Special Projects

Quantifiable outcome

• M&A Deal of the Year Award 2016 at Thomson Reuters Asian Legal Business Philippine Law Awards
• +2 more outcomes

Named customers5 records

Segments7 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Two partnerships are on record, tiered supporting.

• Milbank LLPsupportingImplementation/ SI/ Consulting Partner · 8 October 2025International law firm acted as counsel for the foreign security grantor in Project Shogun refinancing transaction. CLTPSJ served as Philippine counsel for the lender, security trustee, and sole arranger.
• Meer LawsupportingImplementation/ SI/ Consulting Partner · 8 October 2025Local law firm acted as counsel for the borrower in Project Shogun refinancing. CLTPSJ served as Philippine counsel for the lender, security trustee, and sole arranger.

Scale indicators4 records

Recent moves4 records

Expansion highlights4 records

Direct peers

• Romulo Mabanta Buenaventura Sayoc & de los Angeles: Established Philippine full-service firm recognized for corporate, banking, M&A, and dispute resolution work. Closely comparable to CLTPSJ in scope, Manila-based positioning, and blue-chip enterprise client base.
• Quisumbing Torres: Member firm of Baker McKenzie International in the Philippines, providing a full-service legal practice including corporate, M&A, IP, and labor. Directly comparable to CLTPSJ on full-service scope and client base, with the added dimension of an international network affiliation.
• Puno & Puno Law Offices: Manila-based full-service Philippine law firm with strong corporate, litigation, and IP practices. Comparable to CLTPSJ as a domestic full-service competitor targeting similar enterprise clients.
• Ponce Enrile Reyes & Manalastas (PERM): Philippine law firm with corporate, litigation, and regulatory practices serving multinational and domestic clients. Directly comparable as a Manila-based full-service alternative for enterprise legal work.
• Villaraza & Angangco (V&A Law): Philippine law firm recognized for corporate, M&A, securities, and dispute resolution work, often acting for listed companies and conglomerates. Comparable as a top-tier domestic competitor for high-end transactional mandates.
• ACCRALAW (Angara Abello Concepcion Regala & Cruz): Another leading Philippine full-service law firm with deep corporate, litigation, IP, and tax practices serving major domestic and multinational clients. Directly comparable in size, scope, and target market.
• SyCip Salazar Hernandez & Gatmaitan: One of the largest and most established full-service Philippine law firms based in Makati. Directly comparable as a top-tier local competitor across corporate, M&A, litigation, IP, and tax practices serving both Philippine and international clients.

Emerging players

• Marcos Law (Marcos & Associates): Philippine law firm with corporate and special projects work. Comparable as a domestic alternative for enterprise clients but at a smaller scale than CLTPSJ.

Others

• Milbank LLP: Global law firm that partnered with CLTPSJ on the Project Shogun refinancing, acting as counsel for the foreign security grantor. Relevant as a transactional counterparty and benchmark for international firms co-counseling with Philippine firms on inbound deals.

Broad incumbents

• Baker McKenzie Global (Philippines operations): Global law firm operating in the Philippines via Quisumbing Torres, competing for the same cross-border M&A and project finance mandates. Comparable as an incumbent with broader geographic reach than CLTPSJ.

Market position

Strengths5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/cltpsjlawfirm
• Facebookfacebook.com/CLTPSJLAW
• LinkedInlinkedin.com/company/castillo-laman-tan-pantaleon-and-san-jose

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Castillo Laman Tan Pantaleon & San Jose