Overview

Kitz Japan is a valve and fluid control manufacturer headquartered in St. Louis, Missouri, United States, and founded in 1951. It has an estimated 5,000 to 10,000 employees and an estimated revenue band of $1 to 5 billion. The company serves the automotive, electric-vehicle, electronics, appliance, construction, and plumbing-hardware industries. Among its recent developments, KITZ Corporation published a semiconductor-related business briefing in October 2026, and it opened a Vietnam plant for high-purity gas valves used in semiconductor equipment.

At a glance

What Kitz Japan makes

The company manufactures ball, butterfly, check, gate, and globe valves in brass, bronze, carbon iron, and stainless steel, and it holds ISO 9001, ISO 14001, and ISO 45001 certifications.

Products and capabilities described on the company's own site include Valve, Emissions, Lighting, Machining, Casting, Mold, Steel, Assembly, Semiconductor (source: kitz.com).

Certifications

Kitz Japan is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:

• ISO 14001 — kitz.com

• ISO 45001 — kitz.com

• ISO 9001 — kitz.com

Latest developments

• 2026-10-08 — KITZ Corporation Semiconductor-Related Business Briefing (biggo.com)

• 2026-03-26 — Notice of KITZ Corporation’s Acquisition of Shares in V TEX Corporation (kitzsct.com)

• 2026-02-09 — キッツとKITZ SCT、ベトナム工場で竣工式／ 半導体装置向け高純度ガス用バルブの生産開始 年 | ニュース | 株式会社キッツ (kitz.co.jp)

• 2025-11-25 — KESCO Signs Basic Agreement on Business Alliance with Edogawa Valve Protection | News | Comprehensive valve Manufacturer KITZ Corporation (kitz.com)

• 2025-11-06 — Invest to Expand Production for Data Center Sector New Factory Building to be Constructed at Thai Plant | News | Comprehensive valve Manufacturer KITZ Corporation (kitz.com)

• 2025-09-11 — KITZ to Enter Green Hydrogen Market Launch of PEM Water Electrolysis Unit | News | Comprehensive valve Manufacturer KITZ Corporation (kitz.com)

Company details

Kitz Japan was founded in 1951, has an estimated 5,000-10,000 employees, and is headquartered in St. Louis, Missouri. On the LightSource stability read it is rated "Established & active": 75 years in operation (founded 1951). Holds ISO 14001, ISO 45001, ISO 9001 certification(s) per public sources.

Frequently asked questions

What does Kitz Japan make?

Kitz Japan is a valve and fluid control manufacturer headquartered in St. Louis, Missouri, United States, and founded in 1951. It has an estimated 5,000 to 10,000 employees and an estimated revenue band of $1 to 5 billion. The company serves the automotive, electric-vehicle, electronics, appliance, construction, and plumbing-hardware industries. Among its recent developments, KITZ Corporation published a semiconductor-related business briefing in October 2026, and it opened a Vietnam plant for high-purity gas valves used in semiconductor equipment.

Where is Kitz Japan headquartered?

Kitz Japan is headquartered in St. Louis, Missouri (9216 Clayton Rd, St. Louis, Missouri, 63124).

When was Kitz Japan founded?

Kitz Japan was founded in 1951.

How big is Kitz Japan?

Kitz Japan has an estimated 5,000-10,000 employees, with revenue in the $1-5B range (estimated).

What certifications does Kitz Japan hold?

Kitz Japan lists ISO 14001 · ISO 45001 · ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.

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Last verified Nov 2026. Is this your company? Request a correction.