TMAXSOFT: Detailed Company Information & Corporate Profile
Summary
TMAXSOFT is an independent software development company founded in 1997, headquartered in Gyeonggi-do, KR. The firm specializes in legacy modernization, SOA-based enterprise systems, middleware, database, big data, RDBMS, mainframe modernization and rehosting services. With a team of 500-1000 professionals it generates annual revenue between $100M and $500M.
The organization operates within the Chicago Metropolitan DMA and follows SIC code 7370 for software development services. Its executive leadership includes CEO HyongYong Lee, Vice Presidents Karthik Masilamani (North America Business) and Sangyoul Lee, Senior VP Chul Han PhD, among others.
TMAXSOFT’s expertise supports enterprise transformation across multiple platforms, from legacy mainframes to modern middleware solutions. The company leverages advanced big‑data analytics and RDBMS capabilities to deliver scalable services to its customers.
| Social Links |    |
| Phone Number | 1-312-525-8330 |
| Industries | |
| TMAXSOFT Headquarters Address | 45, Jeongjail-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13613 KR |
| Company Size | 500-1000 employees |
| Specialities & Services | Legacy Modernization, SOA-based enterprise systems, Middleware, Database, Big Data, RDBMS, Mainframe modernization, Mainframe Rehosting |
| SIC Code | 7370 |
| DMA Code | Chicago Metropolitan Area |
| Founded | 1997 |
| Operating Status | Independent Company |
| Updated: | 2026-09-10 |
Competitors
Name | Founded | Type | Employees |
|---|---|---|---|
| 1981 | Public Company | 10K - 50K | |
| 1998 | Public Company | 10K - 50K | |
| 1998 | Public Company | 100K - 9.9M | |
| 2009 | Privately Held | 25 - 100 |
Workforce Turnover
Number of employees switched from or switched to
Departmental sample breakdown
Length of Employment
TMAXSOFT's workforce includes employees across a wide range of tenure levels.
4% have been with the company for 1 to 2 years4% have been with the company for 3 to 4 years15% have been with the company for 5 to 7 years15% have been with the company for 8 to 10 years62% have been with the company for more than 11 years
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TMAXSOFT Corporate Information: FAQ
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