# ALSOK Co Ltd.

ALSOK Co Ltd. is an other.

## Overview

- **Organization type:** other
- **Assets under management:** Undisclosed

## Regulatory record

- **Reports private funds:** No

## About

ALSOK Co Ltd., formerly known as Sohgo Security Services, is one of Japan's largest private security companies. It was founded in 1965 by Iwao Sekiguchi and has since expanded into electronic security, facility management, and disaster prevention services. The firm operates primarily in Japan, with some presence in other Asian markets. Revenue is generated through contracted security personnel, alarm monitoring, and system installation. The company serves corporate, government, and residential clients. ALSOK has diversified into related services such as medical alert systems and biometric access control (public record). With a workforce of over 30,000 employees, ALSOK is a major player in Japan's security industry. Its ADR listing provides indirect access to international investors. The firm's financials are disclosed annually, with revenue reported in the hundreds of billions of yen (public record). ALSOK operates as a public company, not a family office or investment entity. Its governance follows Japanese corporate standards with a board of directors. There is no disclosed structure for family office or investment management activity, making its classification here a data artifact.

## Questions

### What business does ALSOK conduct?

ALSOK provides security services including manned guarding, electronic security systems, alarm monitoring, and disaster prevention services. It also offers facility management and medical alert systems (public record).

### Where is ALSOK headquartered?

ALSOK is based in Tokyo, Japan. It operates primarily in Japan, with some expansion into other Asian markets (public record).

### Does ALSOK manage investments or capital for external clients?

There is no public evidence that ALSOK manages third-party capital or operates as an investment firm. It is a security services company with no disclosed family office or asset management activity.

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Last updated: 2026-06-03T20:00:00.000Z

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