About CastleNet
CastleNet is a publicly listed company based in Taipei (Taiwan) founded in 1998. Optical networking equipment is supplied to telecom operators and ISPs. Its focus areas include Telecom, Telecom Infrastructure Tech, Core Network and Equipment.
Company details
CastleNet was founded in 1998 in Taipei, Taiwan, as a provider of optical networking equipment. Products are offered to telecom operators, MSOs, and ISPs, including data cable modems, ADSL devices, dataEMTA gateways, ECMM modules, and routers. Operations focus on the telecommunications sector, with equipment designed for network infrastructure needs in these markets.
- Headquarters Taipei, Taiwan
- Stage Public
- SectorsTelecommunications
- Email••••••••
- Phone•••• ••••
- Website castlenet.com.tw
- Legal Name Castlenet Technology, Inc.
- Annual Revenue$7.65 B1760.03as on Dec 31, 2025
- Net Profit-$462.96 M-30.39as on Dec 31, 2025
- EBITDA-$172.25 M53.16as on Dec 31, 2025
IPO & Listings of CastleNet
CastleNet is a publicly listed company on the TPEX with ticker symbol 8059 in Taiwan, operating in the Electronic technology sector. As a publicly traded entity, the company provides investors with opportunities to participate in its growth story through equity ownership. The listing enables access to capital markets, enhances corporate visibility, and provides liquidity for shareholders while maintaining transparency through regulatory compliance and regular financial disclosures.
- IPO date16 Mar 2010
- Listed onTT: 8059
- Listed entityCastleNet Technology, Inc.
- Exchange sectorElectronic technology
- ISINTW0008059007
- Share price17.70 TWD (+2.31% on the day) · 2026-10-14
- Market capitalisation2,014,866,786.00 TWD
- EPS (diluted, trailing year)-1.78 TWD
- Volume (last session)58,734
Financials of CastleNet
| Year | Revenue | Net income | EBITDA |
|---|---|---|---|
| 2025 | 7.65B TWD | -463.0M TWD | -172.2M TWD |
| 2024 | 411.3M TWD | -355.1M TWD | -367.8M TWD |
| 2023 | 556.4M TWD | 6.7M TWD | -84.4M TWD |
| 2022 | 1.15B TWD | 16.3M TWD | -6.5M TWD |
| 2021 | 1.69B TWD | -150.6M TWD | -140.0M TWD |
Detailed financial statements for CastleNet
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Web traffic of CastleNet
The website of CastleNet (castlenet.com.tw) receives about 1.5K visits a month.
- Monthly visits1.5K
▲ 17.6% vs previous month
Websites whose visitors overlap most with CastleNet. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
pentagram.pl | pentagram.pl | 100% | – | ||
roline-net.com | roline-net.com | 100% | – | ||
| airlink101.com | 100% | View details | |||
| netopia.com | 100% | View details | |||
totolink.tw | totolink.tw | 86% | #1,029,922 | – | |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
All 24 similar websites and full traffic analytics for CastleNet
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- 24 similar websites
- Audience overlap
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Related news about Castlenet
Complete news archive for CastleNet
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Frequently Asked Questions about CastleNet
CastleNet was founded in 1998.
CastleNet is headquartered in Taipei, Taiwan.
CastleNet was founded in 1998 in Taipei, Taiwan, as a provider of optical networking equipment. Products are offered to telecom operators, MSOs, and ISPs, including data cable modems, ADSL devices, dataEMTA gateways, ECMM modules, and routers. Operations focus on the telecommunications sector, with equipment designed for network infrastructure needs in these markets.
Yes, CastleNet is publicly traded on TPEX under the ticker symbol 8059.