CÔNG TY CỔ PHẦN SIPHONET
| Tax code | 0111350715 |
| Vietnamese name | CÔNG TY CỔ PHẦN SIPHONET |
| Abbreviated name | SIPHONET |
| English name | SIPHONET JOINT STOCK COMPANY |
| Address | Tầng 4, Khu văn phòng, Tòa nhà N07-B1 Khu đô thị mới Dịch Vọng, Phường Cầu Giấy, TP Hà Nội, Việt Nam. |
| Legal representative | NGUYỄN DUY HIẾU |
| Business registration certificate issue date | 16/01/2026 |
| Operations start date | 16/01/2026 |
| Data updated | 09/10/2026 04:09 |
Business lines
| 4222 | Construction of water supply and sewerage projects |
| 8230 | Organization of conventions and trade shows |
| 8299 | Other business support service activities n.e.c. |
| 9531 | Repair and maintenance of automobiles and other motor vehicles |
| 4790 | Hoạt động dịch vụ trung gian bán lẻ |
| 5821 | Xuất bản trò chơi điện tử |
| 5829 | Other software publishing |
| 6211 | Phát triển trò chơi điện tử, phần mềm trò chơi điện tử và các công cụ phần mềm trò chơi điện tử |
| 6219 | Other computer programming activities |
| 6220 | Tư vấn máy tính và quản lý cơ sở hạ tầng máy tính |
| 6290 | Other computer and information technology service activities |
| 6310 | Cơ sở hạ tầng công nghệ thông tin, xử lý dữ liệu, lưu trữ và các hoạt động liên quan |
| 6390 | Hoạt động cổng tìm kiếm web và các dịch vụ thông tin khác |
| 7020 | Management consultancy activities |
| 7110 | Architectural and engineering activities and related technical consultancy |
| 7211 | Research and development in natural sciences |
| 7212 | Research and development in engineering and technology |
| 7213 | Research and development in medical and pharmaceutical sciences |
| 7214 | Research and development in agricultural sciences |
| 7221 | Research and development in social sciences |
| 7222 | Research and development in humanities |
| 7310 | Advertising |
| 7410 | Specialized design activities |
| 7499 | Other remaining professional, scientific and technical activities n.e.c. |
| 7710 | Rental and leasing of motor vehicles |
| 2511 | Manufacture of structural metal products |
| 2512 | Manufacture of tanks, reservoirs and containers of metal |
| 2592 | Treatment and coating of metals; machining |
| 2593 | Manufacture of cutlery, hand tools and general hardware |
| 2599 | Manufacture of other fabricated metal products n.e.c. |
| 4679 | Wholesale of other specialized products n.e.c. |
| 4740 | Retail sale of information and communications equipment |
| 2619 | Sản xuất linh kiện điện tử khác |
| 2620 | Manufacture of computers and peripheral equipment |
| 2640 | Manufacture of consumer electronics |
| 2651 | Manufacture of measuring, testing, navigating and control equipment |
| 2710 | Manufacture of electric motors, generators, transformers and electricity distribution and control apparatus |
| 2731 | Manufacture of fibre optic cables |
| 2732 | Manufacture of other electronic and electric wires and cables |
| 2733 | Manufacture of wiring devices |
| 2740 | Manufacture of electric lighting equipment |
| 2750 | Manufacture of domestic appliances |
| 2790 | Manufacture of other electrical equipment |
| 3320 | Installation of industrial machinery and equipment |
| 3600 | Water collection, treatment and supply |
| 3700 | Sewerage and wastewater treatment |
| 3811 | Collection of non-hazardous waste |
| 3812 | Collection of hazardous waste |
| 3821 | Treatment and disposal of non-hazardous waste |
| 3822 | Treatment and disposal of hazardous waste |
| 4101 | Construction of residential buildings |
| 4102 | Construction of non-residential buildings |
| 4211 | Construction of railways |
| 4212 | Construction of roads |
| 4221 | Construction of electricity projects |
| 4223 | Construction of telecommunications projects |
| 4229 | Construction of other utility projects |
| 4291 | Construction of water projects |
| 4292 | Construction of mining projects |
| 4293 | Construction of manufacturing and processing projects |
| 4299 | Construction of other civil engineering projects n.e.c. |
| 4311 | Demolition |
| 4312 | Site preparation |
| 4321 | Electrical Installation |
| 4322 | Plumbing, Heating and Air-Conditioning Installation |
| 4329 | Other Building Services Installation |
| 4330 | Building Completion and Finishing |
| 4340 | Hoạt động dịch vụ trung gian cho xây dựng chuyên dụng |
| 4390 | Other Specialized Construction Activities |
| 4610 | Commission Agents, Brokers and Auctions of Goods |
| 4651 | Wholesale of computers, computer peripheral equipment and software |
| 4652 | Wholesale of electronic and telecommunications equipment and parts |
| 4659 | Wholesale of other machinery and equipment |
| 4662 | Wholesale of metals and metal ores |
| 4672 | Wholesale of metals and metal ores |
| 4673 | Wholesale of other construction materials and installation equipment |
Frequently asked questions about CÔNG TY CỔ PHẦN SIPHONET
What business lines does CÔNG TY CỔ PHẦN SIPHONET operate in?
The main business line of CÔNG TY CỔ PHẦN SIPHONET is Xây dựng công trình cấp, thoát nước (business line code 4222). The entity is also registered for 75 additional business line(s), all listed under "Business lines" above.
Does CÔNG TY CỔ PHẦN SIPHONET have any other names?
Besides its full name, CÔNG TY CỔ PHẦN SIPHONET is also registered under the name SIPHONET JOINT STOCK COMPANY. When searching, either this name or tax code 0111350715 will return the same result.
What is the tax code of CÔNG TY CỔ PHẦN SIPHONET?
CÔNG TY CỔ PHẦN SIPHONET has tax code 0111350715, issued on 16/01/2026. This number identifies the entity on invoices, vouchers and in all tax administrative procedures under Article 11 of the Law on Tax Administration 2025.
Is CÔNG TY CỔ PHẦN SIPHONET still operating?
The status of tax code 0111350715 of CÔNG TY CỔ PHẦN SIPHONET is NNT đã được cấp MST according to the latest synced data (as of 09/10/2026). The list of tax code statuses is set out in Appendix I of Circular 90/2026/TT-BTC.
Who is the legal representative of CÔNG TY CỔ PHẦN SIPHONET?
The legal representative of CÔNG TY CỔ PHẦN SIPHONET is NGUYỄN DUY HIẾU according to the tax registration information linked to tax code 0111350715.
Legal basis: Article 11 of the 2025 Law on Tax Administration and Circular 90/2026/TT-BTC on tax registration (effective 01/7/2026). See also tax code structure and the list of 10 tax code statuses.
Business statistics in Phường Cầu Giấy
8,573Total businesses
4,343Operating
4,123Ceased / suspended
0New in last 90 days
Across Thành phố Hà Nội: 262,559 businesses, of which 118,360 are operating.
Common business lines
By legal form
Limited liability company4,720
Joint stock company3,386
Single-member limited liability company137
Representative office73
Centre (public service / services)43
Other state agency40
By status
Taxpayer issued tax code4,326
Not operating at registered address1,978
Ceased operations; tax code closure not yet completed1,436
Temporarily suspended operations497
Ceased operations; tax code closure completed212
Pending verification of operating status at registered address99
Businesses with legal representative "NGUYỄN DUY HIẾU"
A total of 72 businesses share the same legal representative name