Verified Nov 2026
Electronics & Software
·
Yokohama, Kanagawa Prefecture
·
Since 2015
Tier IV is a deep-tech company headquartered in Yokohama, Kanagawa Prefecture, Japan, founded in 2015. It has 200-500 employees and is publicly listed (ticker 593A.T). The company develops open-source autonomous driving software, including the Autoware platform, and serves automotive, electric-vehicle, electronics, and plumbing-hardware industries. Among its recent activities, it announced in March 2026 the deployment of Level 4 buses built with Isuzu and powered by NVIDIA DRIVE Hyperion.
Tier IV at a glance
Revenue
43M
Employees
200-500
Founded
2015
Headquarters
Yokohama, Kanagawa Prefecture
Ownership
Publicly traded (JPX: 593A.T)
Industries
Automotive
Electric Vehicles
Electronics
Plumbing & Hardware
Overview
Tier IV is a deep-tech company headquartered in Yokohama, Kanagawa Prefecture, Japan, founded in 2015. It has 200-500 employees and is publicly listed (ticker 593A.T). The company develops open-source autonomous driving software, including the Autoware platform, and serves automotive, electric-vehicle, electronics, and plumbing-hardware industries. Among its recent activities, it announced in March 2026 the deployment of Level 4 buses built with Isuzu and powered by NVIDIA DRIVE Hyperion.
At a glance
Attribute | Detail |
|---|---|
Founded | 2015 |
Headquarters | Yokohama, Kanagawa Prefecture |
Employees | 200-500 |
Revenue | 43M |
Ownership | Publicly traded (JPX: 593A.T) |
Primary capability | Electronics & Software |
What Tier IV makes
The company's offerings center on the Autoware open-source autonomous driving software, with its web listings also referencing semiconductor and LED products, and it holds no certifications in the record.
Products and capabilities described on the company's own site include Semiconductor, LED (source: tier4.co.jp).
Latest developments
2026-11-04 — Tier IV leads Autoware 2.0 push towards AI-based driving | Automotive World (automotiveworld.com)
2026-10-14 — Taisei Corporation, TIER IV, and Taisei Rotec Partner to Advance Autoflow Road Deployment through a Japanese Government Project (tier4.co.jp)
2026-10-05 — TIER IV secures Japanese government grant to advance autonomous bus field operational tests and talent development in Saudi Arabia (tier4.co.jp)
2026-10-01 — TIER IV joins Arm Total Design for Physical AI to accelerate ready-to-use Autoware solutions through Open AD Kit (tier4.co.jp)
2026-03-17 — TIER IV and Isuzu advance autonomous transit with deployment of Level 4 buses powered by NVIDIA DRIVE Hyperion (tier4.co.jp)
2026-02-20 — TIER IV secures long-term credit facility with Japanese megabank MUFG (tier4.co.jp)
Company details
Tier IV is publicly listed, and its reported customers in the record are not specified, though its work spans automotive manufacturing and mobility projects. Tier IV was founded in 2015, has an estimated 200-500 employees, and is headquartered in Yokohama, Kanagawa Prefecture.
Frequently asked questions
What does Tier IV make?
Tier IV is a deep-tech company headquartered in Yokohama, Kanagawa Prefecture, Japan, founded in 2015. It has 200-500 employees and is publicly listed (ticker 593A.T). The company develops open-source autonomous driving software, including the Autoware platform, and serves automotive, electric-vehicle, electronics, and plumbing-hardware industries. Among its recent activities, it announced in March 2026 the deployment of Level 4 buses built with Isuzu and powered by NVIDIA DRIVE Hyperion.
Where is Tier IV headquartered?
Tier IV is headquartered in Yokohama, Kanagawa Prefecture.
When was Tier IV founded?
Tier IV was founded in 2015.
How big is Tier IV?
Tier IV has an estimated 200-500 employees, with revenue in the 43M range.
Is Tier IV publicly traded?
Publicly traded (JPX: 593A.T). Public financial figures are drawn from its filings.
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Last verified Nov 2026. Is this your company? Request a correction.
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