About Onex
Onex is a company based in Xiangtan (China) founded in 2000 was acquired by TranSwitch® in August 2001. Onex has raised $30 million across 2 funding rounds from investors including TranSwitch®, Venrock and Star Ventures.
- Headquarter Xiangtan, China
- SectorsTechnology
- Website onexco.com
- Acquired by TranSwitch® (Aug 2001)
- Total Equity Funding$30M (USD)
in 2 rounds
- Latest Funding Round$20M (USD), Series B
Nov 2000
- InvestorsTranSwitch®
& 3 more
- Acquired byTranSwitch®
(Aug 2001)
Funding Insights of Onex
Onex has successfully raised a total of $30M across 2 strategic funding rounds. The most recent funding activity was a Series B round of $20 million completed in November 2000. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $30M
- Total Rounds 2
- Last Round Series B — $20M
- First Round $10M
(Jun 2000)
- Investors Count 4
All 2 funding rounds of Onex with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Nov 2000 | $20M | Series B | – | Venrock | |
| Jun 2000 | $10M | Series A | – | – |
4 investors in total: 4 institutional.
Investors in Onex
Onex has secured backing from 4 investors, including venture fund and institutional investors. Prominent investors backing the company include TranSwitch®, Venrock and Star Ventures.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Venture capital firm focused on tech sectors | – | venrock.com | Palo Alto, United States | |
Early & late stage sector-agnostic VC firm investing in the US, Asia and Middle East | – | star-ventures.com | Herzliya, Israel | |
Tech focused VC firm investing in early stage startups in the US | – | signallake.com | Westport, United States | |
Integrated semiconductors for telecom and data communications are designed worldwide. | 1988 | transwitch.com | Shelton, United States |
Investor details for Onex
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
Verified entity values are shown only after access is granted.
Timeline of Onex
4 dated milestones of Onex across 1 years, from founding to its latest funding, stage changes and deals.
- Founded Onex is founded.
- Funding First funding round of $10.0M.
- Funding Latest funding round, Series B, of $20.0M.
- Exit Acquired by TranSwitch®.
Latest news on Onex
Complete news archive for Onex
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
- Source and publication date
- Older coverage
- Brand-specific news history
Verified entity values are shown only after access is granted.
Similar companies to Onex
10 companies that operate in the same segment as Onex (Optical & Photonics Technologies), ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Multiple sectors are invested in by the venture capital firm. | 1934 | Minato, Tokyo, Japan | – | USD 57.04 M | – | |
Provider of diversified optics for microscopic instruments, medical imaging systems and more | 1846 | Oberkochen, Baden-wurttemberg, Germany | USD 49.79 M | USD 2.62 B | – | |
Cloud-based network management software is provided for infrastructure planning. | 1992 | Hanover, New Hampshire, United States | – | USD 4.77 B | 8,660 | |
Fiber lasers are developed and supplied for industrial applications. | 2000 | Vancouver, Washington, United States | USD 203.65 M | USD 261.33 M | 800 | |
Photon-based universal quantum computers are developed for error correction. | 2015 | Palo Alto, California, United States | USD 2.32 B | USD 1.04 M | 12 | |
Universal quantum computers using trapped-ion technology are provided via cloud. | 2015 | College Park, Maryland, United States | USD 86 M | USD 43.07 M | 407 | |
Developer of solid-state LiDAR sensors and perception software for autonomous vehicles | 2016 | Rosh Haayin, Central District, Israel | USD 252 M | USD 55.09 M | 415 | |
Fiber-optic networking products are designed and manufactured for broadband markets. | 1997 | Sugar Land, Texas, United States | USD 64.82 M | USD 455.71 M | 3,310 | |
Data center fiber optic networks and connectivity solutions are provided. | 1991 | California, United States | – | USD 51.57 B | 37,000 | |
LiDAR-based sensors for autonomous vehicles and energy applications are developed. | 2014 | Shanghai, China | USD 598.93 M | USD 421.17 M | 1,020 |
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Frequently Asked Questions about Onex
Onex was founded in 2000.
Onex is headquartered in Xiangtan, China. It is registered at Xiangtan, Hunan, China.
Onex is a funded company, having raised a total of $30M across 2 funding rounds to date. The company's 1st funding round was a Series A of $10M, raised on Jun 2000.
Founded in 2000 and based in Xiangtan, China, ASICs are developed by Onex within the technology sector focused on optical communications. These integrated circuits support the creation of multi-service platforms used for service provisioning and bandwidth management across optical networks. Operations center on hardware solutions that facilitate efficient data handling in telecommunications infrastructure, with a domain presence at onexco.com.
Onex has 4 investors. Key investors include TranSwitch®, Venrock, Star Ventures, and Signal Lake.
Yes. Onex was acquired by TranSwitch® in August 2001.

