Company lists · Data refreshed September 2026

Top 11 Infrastructure law firms based in Thailand

RevenueBase identified 30 infrastructure law firms headquartered in Thailand as of September 2026 and tracks 383 professional contacts across them, including 154 with verified work emails. Bangkok is the largest hub.

This list covers infrastructure law firms headquartered in Thailand, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
30Companies
383Contacts tracked
154Verified emails
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The 11 largest infrastructure law firms based in Thailand

Ranked by team size
Top 11 of 30 infrastructure law firms based in Thailand, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidence195 One Bangkok Tower 4, ThailandHQ checked Sep 21, 2026201-500126 contacts →

Partial evidence

“As the largest and most prominent international law firm in Thailand, we advise clients on a full range of corporate legal services spanning over 40 years.”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceBang Rak, ThailandHQ checked Sep 21, 202611-5025 contacts →

Partial evidence

“The Capital Law Office is a respected law firm with unique strengths, founded in 2013 by a legal team with more than 20 years’ experience.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceBangkok, ThailandHQ checked Sep 21, 202611-5023 contacts →

Partial evidence

“Pisut & Partners is a leading law firm based in Bangkok having profound connections with international law firms across the region and other continents.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceBangkok, ThailandHQ checked Sep 21, 202611-5018 contacts →

Partial evidence

“SRPP is an independent national law firm with a proven reputation for providing progressive, industry-leading legal, regulatory and government relations advice to our clients…”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceBangkok, ThailandHQ checked Sep 21, 202611-5016 contacts →

Indirect evidence

“LawPlus provides quality legal services to leading international, regional and local corporate clients.”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceSathorn, ThailandHQ checked Sep 21, 202651-2007 contacts →

Partial evidence

“ILCT is a full-service law firm over 54-year history.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceBangkok City, ThailandHQ checked Sep 21, 20261-104 contacts →

Indirect evidence

“About Us: AD ASIA Consulting Co, Ltd, an affiliate of AD ASIA Holdings Limited, is a premier advisory firm offering comprehensive services in project planning, construction…”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceSilom, ThailandHQ checked Sep 21, 20261-104 contacts →

Indirect evidence

“Witsaroot L&L Consulting is dedicated to providing comprehensive legal and strategic solutions to businesses of all sizes.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceWatthana, ThailandHQ checked Sep 21, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceBangkok, ThailandHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“Legal Concept is a full service law firm that formed by experienced lawyers and professional business consultants.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceBangkok, ThailandHQ checked Sep 21, 202611-501 contacts →

Partial evidence

“Natipatana Law Office is a law firm based in Bangkok, Thailand, specialized in dispute resolution and corporate advisory services.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 11 of 30 infrastructure law firms based in Thailand

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Infrastructure law firms based in Thailand at a glance

As of Sep 21, 2026
40.2%Verified-email coverage
12.8Average contacts per company
11-50Median size (employees)
66.7%Largest-city concentration · Bangkok
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
14
51-200
5
201-500
1

Email recency for this list is measured worldwide rather than for Thailand, so it is reported there. Company counts and contact totals on this page are exact for Thailand, over 30 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among infrastructure law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Thailand whose own description of what they do matches “infrastructure law firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names infrastructure law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among infrastructure law firms, and records with no verified work email. Companies headquartered outside Thailand are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 154 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names infrastructure law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many infrastructure law firms are there based in Thailand?

RevenueBase identified 30 infrastructure law firms headquartered in Thailand as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Baker Mckenzie Thailand, headquartered in Thailand, tops this list with the largest team on record.

Which city has the most infrastructure law firms?

Bangkok leads with 20 headquartered companies, followed by Bangkok City (1) and Hua Hin Prachuap Khiri Khan (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 154 verified decision-maker contacts tracked across these 30 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.