Company lists · Data refreshed September 2026

Top 15 Capital markets law firms based in Thailand

RevenueBase identified 33 capital markets law firms headquartered in Thailand as of September 2026 and tracks 335 professional contacts across them, including 121 with verified work emails. Bangkok is the largest hub.

This list covers capital markets 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 14, 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 14, 2026 86% judged on-target in blind review
33Companies
335Contacts tracked
121Verified emails
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The 15 largest capital markets law firms based in Thailand

Ranked by team size
Top 15 of 33 capital markets law firms based in Thailand, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to capital markets 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
1Indirect evidenceBangkok, ThailandHQ checked Sep 14, 2026201-50061 contacts →

Indirect evidence

“Trinity Securities Company Limited Currently, the company has been granted a license by the Ministry of Finance to engage in 7 types of securities business namely securities…”

Source: RevenueBase Database · checked Sep 14, 2026
2Strong evidenceBangkok, ThailandHQ checked Sep 14, 202611-5044 contacts →

Strong evidence

“At Fynncorp, we believe Thailand's next decade of capital market leadership will not be built by the largest banks, it will be built by the most strategic partners.”

Source: RevenueBase Database · checked Sep 14, 2026
3Strong evidenceLumphini, ThailandHQ checked Sep 14, 202611-5026 contacts →

Strong evidence

“Thanathip & Partners is a highly specialised law firm in the areas of M&A, corporate finance, capital markets, foreign direct investment, banking and finance, securities and…”

Source: RevenueBase Database · checked Sep 14, 2026
4Strong evidenceBang Rak, ThailandHQ checked Sep 14, 202611-5025 contacts →

Strong 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 14, 2026
5Indirect evidenceBangkok, ThailandHQ checked Sep 14, 202611-5025 contacts →

Indirect evidence

“Finansa Securities Limited is the principal investment banking arm of Finansa Plc.”

Source: RevenueBase Database · checked Sep 14, 2026
6Partial evidenceBangkok, ThailandHQ checked Sep 14, 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 14, 2026
7Indirect evidenceBangkok, ThailandHQ checked Sep 14, 202611-5016 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
8Partial evidenceKhlong Toei, ThailandHQ checked Sep 14, 202611-5015 contacts →

Partial evidence

“Jay Capital Advisory Limited is a SEC-approved boutique financial advisory firm based in Bangkok, Thailand.”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceSathorn, ThailandHQ checked Sep 14, 202651-2007 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceBangkok, ThailandHQ checked Sep 14, 202611-506 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceBangkok City, ThailandHQ checked Sep 14, 202611-505 contacts →

Partial evidence

“OptAsia Capital Co, Ltd.(“OptAsia”) is a financial advisory firm approved and regulated by the Securities and Exchange Commission (SEC).”

Source: RevenueBase Database · checked Sep 14, 2026
12Strong evidenceSilom, ThailandHQ checked Sep 14, 20261-103 contacts →

Strong evidence

“A boutique law firm specializes in financial technology providing services in various areas of practice, including corporate & commercial, capital market, taxation, dispute…”

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceWatthana, ThailandHQ checked Sep 14, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
14Partial evidenceBangkok, ThailandHQ checked Sep 14, 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 14, 2026
15Indirect evidenceKhlong Tan Nuea, ThailandHQ checked Sep 14, 20261-101 contacts →

Indirect evidence

“Lawyers and business consulting around the world”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 15 of 33 capital markets law firms based in Thailand

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Capital markets law firms based in Thailand at a glance

As of Sep 14, 2026
36.1%Verified-email coverage
10.2Average contacts per company
11-50Median size (employees)
78.8%Largest-city concentration · Bangkok
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
16
51-200
3
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 33 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 capital markets 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 “capital markets 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 capital markets 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 capital markets 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, 121 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 14, 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.

Capital markets law firms by metro

  • Capital markets law firms in Bangkok26

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 capital markets 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 capital markets law firms are there based in Thailand?

RevenueBase identified 33 capital markets 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?

Trinity Securities Group, headquartered in Bangkok, tops this list with the largest team on record.

Which city has the most capital markets law firms?

Bangkok leads with 26 headquartered companies, followed by Bangkok City (1) and Kathu (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 121 verified decision-maker contacts tracked across these 33 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 14, 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.