About j-fiber
j-fiber is a Technology company based in Jena (Germany) founded in 2007, and was acquired by Hengtong in May 2022. Silica-based optical fibres are supplied for data transmission networks. The company has 123 employees. Its chief executive, as recorded, is Michael Gawronsky. j-fiber offers products and services including Multimode Fibers and Preforms. Its focus areas include Semiconductors, Photonics, Optoelectronics and Optical Fibers. Its legal entity is j-fiber GmbH. Its competitors include FiSens and Weinert Industries; 1 of its 2 listed competitors has raised funding.
Company details
The company was founded in 2007 in Jena, Germany, and operates within the optical fibres sector. Silica-based fibres are provided for data transmission, including standard and application-specific types, fused silica for manufacturing, and optics materials for laser applications. Multi-mode and single-mode fibres support 100 Gbps Ethernet in local area networks and data centres. Products are utilized in fibre processing systems, laser medicine, medical equipment, laser systems, and optical metrology.
- Headquarters Jena, Germany
- Employees 123
- Stage Acquired
- SectorsTechnology
- Website j-fiber.com
- Acquired by Hengtong (May 2022)
- Legal Name J-Fiber Gmbh
Products & Services of j-fiber
j-fiber offers a comprehensive portfolio of products and services, including Multimode Fibers and Preforms.
High-performance fibers for data centers and networks.
Components for producing optical glass fibers.
Investors in j-fiber
j-fiber has secured backing from 1 investor, including institutional investors. Prominent investors backing the company include Hengtong.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Wireless telecommunication infrastructures are provided globally by Hengtong. | 1991 | hengtonggroup.com | Suzhou, China |
Investor details for j-fiber
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People of j-fiber
1 people are tracked at j-fiber (1 in leadership); the tracked headcount is 123.
| Name | Role | Group |
|---|---|---|
Michael Gawronsky | CEO | Leadership |
Complete people profiles for j-fiber
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Timeline of j-fiber
2 dated milestones of j-fiber across 15 years, from founding to its latest funding, stage changes and deals.
- Founded j-fiber is founded.
- Exit Acquired by Hengtong.
Competitors of j-fiber
j-fiber has 2 listed competitors in our database, 1 of them funded. They include FiSens and Weinert Industries.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| fisens.com | 2017 | Braunschweig, Germany | $4.21M | Fibre optic sensors and spectrometer systems are provided by FiSens. | ||
| weinert-industries.com | 2001 | Sonneberg, Germany | Optical fibers and cables are manufactured by Weinert Industries. |
Detailed competitors of j-fiber
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Web traffic of j-fiber
The website of j-fiber (j-fiber.com) receives about 1.1K visits a month.
- Monthly visits1.1K
▲ 140% vs previous month
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Related news about J-Fiber
Complete news archive for j-fiber
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Frequently Asked Questions about j-fiber
j-fiber was founded in 2007.
j-fiber is headquartered in Jena, Germany. It is registered at Jena, Thuringia, Germany.
Michael Gawronsky is the CEO of j-fiber, as recorded in our data.
j-fiber has 123 employees.
The company was founded in 2007 in Jena, Germany, and operates within the optical fibres sector. Silica-based fibres are provided for data transmission, including standard and application-specific types, fused silica for manufacturing, and optics materials for laser applications. Multi-mode and single-mode fibres support 100 Gbps Ethernet in local area networks and data centres. Products are utilized in fibre processing systems, laser medicine, medical equipment, laser systems, and optical metrology.
j-fiber's top competitors include FiSens and Weinert Industries.
j-fiber offers Multimode Fibers and Preforms.
j-fiber has 1 investor. Key investors include Hengtong.
j-fiber operates through J-Fiber Gmbh.
Yes. j-fiber was acquired by Hengtong in May 2022.

