DITT (Hangzhou) Technology Co., Ltd.
National-level Specialized and Innovative "Little Giant" Enterprise

Founded in 2018, DITT applies AI visual intelligence to rail transit. Built on our own visual perception algorithms, intelligent hardware and O&M systems, we deliver a full inspection portfolio spanning onboard and wayside applications, now serving 20+ rail transit systems across China.

Together with our subsidiaries — Zhonggang Maintenance, Zhongshu Laser and Yunshang Urban Rail — we are moving rail transit O&M toward predictive maintenance and full-lifecycle management.


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Corporate Culture
Corporate Mission
Digitally driven, empowered by technology
Corporate Vision
A leading guardian of safe rail transit
Corporate Tenet
Inclusive, collaborative, connected
Core Values
Customer first, dedicated, open to change
Development History
In June 2026, the key R&D project at the Hangzhou municipal level undertaken by the company successfully passed the acceptance inspection.
Sep 2025 — Inspection System passed expert review
Jul 2025 — Awarded National “Key Little Giant” Enterprise.
Jan 2025 — Zhejiang Premium Intelligent Product
Dec 2024 — Featured by Zhejiang Satellite TV
Sep 2024 — National “Little Giant” Enterprise
Jan 2024 — Zhejiang First Set of Equipment Award
Oct 2023 — Train Inspection Robot passed expert review
Mar 2023 — Automatic Wheelset Laser Cleaner passed expert review
Feb 2023 — Hangzhou Metro Line 6 Inspection Project passed expert review
Dec 2022 — Zhejiang Specialized & Innovative SME
Jun 2022 — “Stream Treasure Hunt” Team Building
Oct 2021 — Relocated to Tiehui Development Center, Hangzhou
Oct 2021 — Relocated to Tiehui Development Center, Hangzhou
Oct 2020 — Rail Transit O&M Orders Exceeded RMB 100 Million
Jul 2020 — Recognized as a Municipal R&D Center
Feb 2020 — Joint Venture Established with MTR and Fosun International
Dec 2019 — Certified as a National High-Tech Enterprise
Sep 2019 — Achieved CMMI Level 3 and ISO 9000 Certification
Jun 2019 — Strategic Cooperation with an Israeli Company
Jul 2018 — Company Officially Established
Dec 2018 — After-Sales Service Platform Launched
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Provincial R&D Center
ISO 22163
CE
SIL2
AAA Credit Certificate
EN 15085
ISO 20000
National Little Giant
Provincial Specialized SME
CS2
2024 First-Set Equipment
2023 First-Set Equipment
ITSS Level 3
ISO 45001
ISO 14001
ISO 9001
IP Compliance Management System
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