Spending power
TheGrid Corporate Spending Power index would rate purchasing capacity from registry, scale and activity signals.
Spending power
Brand profile · Investment Management
STH Holdings works in Investment Management, out of Bangkok. It is privately held, and its site is sth-holdings.com. It holds one address on record, all in Thailand. Headcount on record is 4. The record links seven similar brands, most of them in Real Estate.
STH Holdings Co., Ltd. was established as an investment holding company investing in professional audio and relevant industries in Thailand and worldwide. We provide management services to all subsidiaries through a back-office shared service team. In addition, we intend to hold a controlling interest in other companies and form a corporate group specializing in the industry.
We strive to ensure that our business partners select us for the high level of reliability of our services and the top quality of our products.
Our business lies in professional audio systems and components manufacturing, live show production rental for international concerts and events, and customized financial and business solutions for corporates in SEA.
Our subsidiaries:
1/ STH A-Ton (Thailand)
A reputable voice coil manufacturer originated in Taiwan in 1973. We utilize modern technology and an experienced factory team to produce high-quality voice coils, a crucial component used in speakers.
2/ STH Professional Audio Owns the trademark of two professional audio brands, namely P.Audio, a loudspeaker manufacturer brand founded in Thailand in 1991 ; and One Systems, a weatherproof loudspeaker brand suitable for both indoor and outdoor application.
https://sth-pro.com/
3/ One Systems Tech A procurement company based in Taiwan that leverages from being a local company to negotiate and find the best suppliers and raw materials at the highest quality for our brands.
4/ OSI One Systems Inc.
Designs and builds premium professional loudspeakers for indoor and outdoor applications. Our speakers are best known for their durability in direct weather and harsh environments.
https://www.onesystems.com/
5/ One System Global Production An audio and lighting equipment rental company based in Bangkok. We own the L-Acoustic Systems and over 1,000 pcs of computer lights in Thailand that can serve concerts and events at any scale.
https://osproduction.co.th/
| Countries | 1 |
|---|---|
| Primary country | TH |
All codes: TH
TheGrid Corporate Spending Power index would rate purchasing capacity from registry, scale and activity signals.
Spending power
Hiring, headcount and registry-change signals, streamed to members.
Registry-filed capital and financial indicators, standardised by TheGrid.
3 employee profiles on record · names withheld.
Names and titles are intentionally absent from this page. The source relation carries no consent record across the privacy regimes this directory spans, so it is never requested and never stored. Search engines see exactly what you see here.
Names are withheld until a consented source exists.
4 counted staff profiles at January 2026. The brand's self-reported band sits above that count and is not published as a headcount.
One address on record, Thailand only. Primary: AIA Sathorn Tower, Bangkok.
None linked to this brand.
5 profiles list STH Holdings as a peer — 80th percentile in Investment Management. It lists ten peers of its own. Prime Zone Asset Management Co., Ltd. and One Systems Global Production list it back.