# Protechwin Technology

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/protechwin-technology

- Industry: Industrial Machinery
- Headquarters: Tianjin, China
- Website: www.protechwin.com
- Latest round: Seed (Apr 10, 2018)
- Investors on record: 1

## About

Based in Tianjin, China, and established in 2017, Protechwin Technology Co., Ltd. is an optical electronic products provider that integrated design, R&D, production, and sales. Based in Tianjin, China, and established in 2017, Protechwin Technology Co., Ltd. is an optical electronic products provider that integrated design, R&D, production, and sales. The company has passed the ISO 9001 quality management system certification. The company is a supplier of China National Nuclear Corporation. The company is a national high-tech company. The company's founder is Mr. Yuanxue Cai, who is doctor of Harbin Institute of Technology, and photonics expert. In May 2025, the company closed a round of Angel+ funding from new investor Hairun Zhitong (Tianjin) Technology. 

Protechwin offers a range of optical and photonics-based systems, including optical coherence tomography (OCT), hyperspectral imaging systems, Raman and UV spectrometers, distributed optical fiber sensing systems, and optoelectronic components. The company also develops software and automation platforms for lab use and industrial detection, with a modular product architecture designed for flexible deployment.

The company earns revenue primarily through the sale of optoelectronic hardware and systems to customers in the healthcare, industrial, and research sectors. Additional income is generated through technical service contracts, system customization, and post-sale support.

Following its latest 2025 Angel+ round of funding, Protechwin will use the funding to scale production of its OCT systems, expand into industrial applications, and support continued R&D and product development.

## Funding rounds

- Seed, Apr 10, 2018 — TusStar

## Investors

- TusStar (https://capitalatlas.ai/funds/tusstar) — Seed