Company lists · Data refreshed September 2026

Top 25 Legacy system modernization companies based in Thailand

Name: Legacy system modernization companies based in Thailand
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 89 companies tracked

RevenueBase identified 89 legacy system modernization companies headquartered in Thailand as of September 2026 and tracks 3,147 professional contacts across them, including 380 with verified work emails. Bangkok is the largest hub.

This list covers legacy system modernization companies 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 20, 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 20, 2026 86% judged on-target in blind review

89Companies

3,147Contacts tracked

380Verified emails

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The 25 largest legacy system modernization companies based in Thailand

Ranked by team size

Top 25 of 89 legacy system modernization companies based in Thailand, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to legacy system modernization companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	G-Able Group	Indirect evidence	Bangkok, ThailandHQ checked Sep 20, 2026	1,001-5,000	665 contacts →
	Indirect evidence “We help organizations across industries create the innovations that matter with our IT and Digital expertise.” Source: RevenueBase Database · checked Sep 20, 2026
2	Aware Group	Indirect evidence	Chiang Mai, ThailandHQ checked Sep 20, 2026	1,001-5,000	414 contacts →
	Indirect evidence “Aware is a privately held technology company focused on Business-to-Business (B2B) software applications and IT services that remove redundant manual processes and drive down…” Source: RevenueBase Database · checked Sep 20, 2026
3	Bluebik Group PLC	Indirect evidence	Bangrak, ThailandHQ checked Sep 20, 2026	1,001-5,000	372 contacts →
	Indirect evidence “Bluebik Group Public Company Limited is a consultancy on digital transformation.” Source: RevenueBase Database · checked Sep 20, 2026
4	Beryl8	Indirect evidence	Bangkok, ThailandHQ checked Sep 20, 2026	51-200	208 contacts →
	Indirect evidence “Beryl 8 Plus is a leading Digital Transformation Consulting Firm specializing in CRM, Data Analytics, and AI.” Source: RevenueBase Database · checked Sep 20, 2026
5	Extend IT Resource Co., LTD	Indirect evidence	Huaykhwang, ThailandHQ checked Sep 20, 2026	201-500	200 contacts →
	Indirect evidence “X10 (บริษัท เอคซเทนด์ ไอที รีซอร์ส จำกัด) ผู้นำด้านไอทีแบบครบวงจร ก่อตั้งเมื่อปี 2552 มุ่งพัฒนาด้าน IT และ software solution ของคนไทยให้ได้มาตรฐานระดับสากล…” Source: RevenueBase Database · checked Sep 20, 2026
6	Seven Peaks	Indirect evidence	Klong Toei, ThailandHQ checked Sep 20, 2026	201-500	167 contacts →
	Indirect evidence “Seven Peaks is a digital execution partner helping organizations design, build, modernize, and scale complex digital products and platforms.” Source: RevenueBase Database · checked Sep 20, 2026
7	Gopomelo	Indirect evidence	Phra Khanong, ThailandHQ checked Sep 20, 2026	51-200	108 contacts →
	Indirect evidence “GoPomelo was established in 2008, to provide Digital Transformation Services with best-in-class Cloud Solutions across 6 subsidiaries in Thailand, Singapore, Vietnam, Malaysia…” Source: RevenueBase Database · checked Sep 20, 2026
8	Playtorium Solutions Public Company Limited	Indirect evidence	Phayathai, ThailandHQ checked Sep 20, 2026	51-200	92 contacts →
	Indirect evidence “As a Software Engineering and Business consulting company, we provide a full spectrum of digital and IT solutions for our customers.” Source: RevenueBase Database · checked Sep 20, 2026
9	Greenmoons	Indirect evidence	Bangkok, ThailandHQ checked Sep 20, 2026	51-200	72 contacts →
	Indirect evidence “Green Moons is a prominent consulting firm specializing in providing holistic guidance on digital transformation to enhance our clients' capabilities through the strategic use of…” Source: RevenueBase Database · checked Sep 20, 2026
10	Socket9	Indirect evidence	Yannawa, ThailandHQ checked Sep 20, 2026	51-200	72 contacts →
	Indirect evidence “Founded in 2011, Socket9 is a Bangkok-based, full-service IT consultancy & solutions specializing in the designs, development, and deployment of enterprise-grade, human-centric…” Source: RevenueBase Database · checked Sep 20, 2026
11	Fusion Solution Co., LTD	Indirect evidence	Klongtonsai Klongsarn, ThailandHQ checked Sep 20, 2026	51-200	71 contacts →
	Indirect evidence “Fusion Solution Group is an integrated business and digital transformation firm that provides digital strategy, digital transformation consultancy & execution, digital &…” Source: RevenueBase Database · checked Sep 20, 2026
12	Round 2 Solutions	Indirect evidence	Bangkok, ThailandHQ checked Sep 20, 2026	51-200	68 contacts →
	Indirect evidence “Round 2 Solutions is a consulting company specializing in helping clients to prepare, implement, adopt, and sustain IT solutions and business process in order to achieve targeted…” Source: RevenueBase Database · checked Sep 20, 2026
13	Codium	Indirect evidence	Patumwan, ThailandHQ checked Sep 20, 2026	51-200	56 contacts →
	Indirect evidence “CODIUM is the premier digital transformation solution provider with complete focus on providing world-class enterprise solutions to businesses in Thailand.” Source: RevenueBase Database · checked Sep 20, 2026
14	Aquaorange	Indirect evidence	Bangkok, ThailandHQ checked Sep 20, 2026	51-200	48 contacts →
	Indirect evidence “At AquaOrange, we are more than just an IT services company - we're your strategic IT consulting partner.” Source: RevenueBase Database · checked Sep 20, 2026
15	Edvisory Tech	Indirect evidence	Bangkok, ThailandHQ checked Sep 20, 2026	11-50	38 contacts →
	Indirect evidence “Drive Performance in Your Business with Technology Consulting, Software Development, Digital Transformation & AI Solutions ให้คำปรึกษาด้านเทคโนโลยี ให้คำแนะนำการปรับใช้ Digital &…” Source: RevenueBase Database · checked Sep 20, 2026
16	Montivory Co., LTD	Indirect evidence	Bangkok, ThailandHQ checked Sep 20, 2026	11-50	26 contacts →
	Indirect evidence “Experience Creator \| Montivory is a company offering business transformation services.” Source: RevenueBase Database · checked Sep 20, 2026
17	Mtel Thailand	Indirect evidence	Phra Khanong, ThailandHQ checked Sep 20, 2026	51-200	24 contacts →
	Indirect evidence “At MTEL Thailand, we help businesses turn ideas into reliable, scalable software.” Source: RevenueBase Database · checked Sep 20, 2026
18	Techspace Co.,ltd	Indirect evidence	Bangkok, ThailandHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “TechSpace is a professional IT outsourcing and consulting company helping businesses in Thailand leverage technology to improve efficiency, strengthen security, and accelerate…” Source: RevenueBase Database · checked Sep 20, 2026
19	Digix Technology	Indirect evidence	Khon Kaen, ThailandHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “We are a digital transformation consultancy and software development company.” Source: RevenueBase Database · checked Sep 20, 2026
20	Vbix Innovation	Indirect evidence	Bangbuathong, ThailandHQ checked Sep 20, 2026	1-10	12 contacts →
	Indirect evidence “VBix provides consultant and implementation services to digitize an organization.” Source: RevenueBase Database · checked Sep 20, 2026
21	Blue DOT Consulting	Indirect evidence	Ladprao, ThailandHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “We trust the technology as we trust people.” Source: RevenueBase Database · checked Sep 20, 2026
22	I3 Gateway Co., LTD	Indirect evidence	Bangrak, ThailandHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “We are a group of passionate people who believe that the combination of technology and business strategy would lead to 10X results in the current digital transformation era.” Source: RevenueBase Database · checked Sep 20, 2026
23	digitalops.dev	Indirect evidence	Phuket, ThailandHQ checked Sep 20, 2026	1-10	9 contacts →
	Indirect evidence “We help companies digitise operations.” Source: RevenueBase Database · checked Sep 20, 2026
24	Devcrew Co., LTD	Indirect evidence	Chomphon, ThailandHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “We are a software development expert and IT consultant providing cutting edge solutions.” Source: RevenueBase Database · checked Sep 20, 2026
25	Tech Invent Company Limited	Indirect evidence	Bangna, ThailandHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Founded by an experienced team in IT for 20 years.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: legacy system modernization companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names legacy system modernization companies.
Partial evidence: Its own public description names part of legacy system modernization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legacy system modernization companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 89 legacy system modernization companies based in Thailand

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Legacy system modernization companies based in Thailand at a glance

As of Sep 20, 2026

12.1%Verified-email coverage

35.4Average contacts per company

11-50Median size (employees)

57.3%Largest-city concentration · Bangkok

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 89 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 legacy system modernization companies, 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 “legacy system modernization companies”. 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 legacy system modernization companies), 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 legacy system modernization companies, 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, 380 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 20, 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.

Legacy system modernization companies by metro

Legacy system modernization companies in Bangkok51

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 legacy system modernization companies, 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 legacy system modernization companies are there based in Thailand?

RevenueBase identified 89 legacy system modernization companies 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?

G-Able Group, headquartered in Bangkok, tops this list with the largest team on record.

Which city has the most legacy system modernization companies?

Bangkok leads with 51 headquartered companies, followed by Bangkok City (4) and Nonthaburi (3).

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 380 verified decision-maker contacts tracked across these 89 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 20, 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.