SalesCatalysts.com Limited
SBO Class 3 (IVANS)- Address
- Flat/Rm 07, 4/F., China Aerospace Centre, 143 Hoi Bun Road, Kwun Tong, Kowloon
- Regulator reference
- SBO-1411
ISP & Telecom Directory · Hong Kong
Hong Kong Telecom & ISP Providers Starting With S
Registered contact details for the 51 OFCA-licensed operators whose name begins with the letter S, from the OFCA register as of 10 September 2026. Address requests to the registered address on the licence; the major operators also publish law-enforcement liaison channels through their corporate offices. Verify against the live register before serving legal process.
Showing 1–51 of 51 entries
SANGFOR TECHNOLOGIES (HONG KONG) LIMITED
SBO Class 3 (IVANS)- Address
- Unit 1612-1616, 16/F., The Metropolis Tower, 10 Metropolis Drive, Hung Hom, Kowloon
- Regulator reference
- SBO-1968
SG.GS (HK) Limited
SBO Class 3 (ISP)- Address
- Room 2401, CC Wu Building, 302-308 Hennessy Road, Wan Chai, Hong Kong
- Regulator reference
- SBO-1770
Shinetown Multimedia Services Limited
SBO Class 3 (ETS)- Address
- Unit 7-11, 22/F., Corporation Park, 11 On Lai Street, Shatin, N.T
- Regulator reference
- SBO-1007
Shinetown Telecommunication Limited
SBO Class 3 (ETS)- Also registered as
- SBO Class 3 (IVANS)
- Address
- Room 7-11, 22/F., Corporation Park, 11 On Lai Street, Shatin, N.T
- Regulator reference
- SBO-0352; SBO-1620
SHING YUEN CHONG TECHNOLOGY LIMITED
SBO Class 3 (ISP)- Address
- Unit 1406B, 14/F., The Belgian Bank Building, 721-725 Nathan Road, Kowloon, Hong Kong
- Regulator reference
- SBO-1869
Shun Tak - China Travel Ship Management Limited
SBO Class 3 (ISP)- Address
- Room 13-18, 10/F., China Merchants Tower, Shun Tak Centre, 200 Connaught Road Central, Hong Kong
- Regulator reference
- SBO-1771
SI HAI ZHONG HONG TECHNOLOGY GROUP LIMITED
SBO Class 3 (ISP)- Address
- Flat C, 12/F, Hua Chiao Commercial Centre, 678 Nathan Road, Mongkok, Kowloon
- Regulator reference
- SBO-1861
Sicitel Limited
SBO Class 3 (ISP)- Address
- Room 1802, 18/F, Khora, 128 Bedford Road, Tai Kok Tsui Kowloon
- Regulator reference
- SBO-1772
SilverTech Telecom Co., Limited
SBO Class 3 (ISP)- Address
- Room 1611, Nan Fung Centre, 264-298 Castle Peak Road, Tsuen Wan, New Territories
- Regulator reference
- SBO-1891
Simcentric Solutions Limited
SBO Class 3 (ISP)- Address
- Tower, 100 How Ming Street, Kwun Tong, Kowloon
- Regulator reference
- SBO-1541
Sinch Hong Kong Limited
SBO Class 3 (IVANS)- Address
- 5/F., Manulife Place, No. 348 Kwun Tong Road, Kwun Tong, Kowloon
- Regulator reference
- SBO-1956
Sincitel International Communications Co., Limited
SBO Class 3 (ISP)- Address
- Room 1222, 12/F., Tower A, Southmark, 11 Yip Hing Street, Wong Chuk Hang, Hong Kong
- Regulator reference
- SBO-1792
Singapore Telecom Hong Kong Limited
SBO Class 1 (local voice telephony)- Also registered as
- SBO Class 3 (ISP; ETS)
- Address
- 21/F., 1063 King's Road, Quarry Bay, Hong Kong
- Regulator reference
- SBO-0035
SINNET CLOUD HK LIMITED
SBO Class 3 (ISP)- Address
- Room 08-09, 19/F., Tower 1, Lippo Centre, 89 Queensway, Admiralty, Hong Kong
- Regulator reference
- SBO-1949
Sinnet International Limited
SBO Class 3 (ISP)- Address
- Room 603, 6/F., Laws Commercial Plaza, No. 788 Cheung Sha Wan Road, Cheung Sha Wan, Kowloon
- Regulator reference
- SBO-1913
Sino Asia Industrial Limited
SBO Class 2 (local voice telephony)- Also registered as
- SBO Class 3 (ISP; ETS)
- Address
- Flat 1701, 17/F, Unicorn Trade Centre, 127-131 Des Voeux Road Central, Central, Hong Kong
- Regulator reference
- SBO-0034
SINOCOMM LIMITED
SBO Class 3 (ISP)- Address
- Unit 6-7, 13/F., Laws Commercial Plaza, 788 Cheung Sha Wan Road, Kowloon
- Regulator reference
- SBO-1826
Sinoking Cloud Limited
SBO Class 3 (ISP)- Address
- No. 12, 19/F, Ho King Commercial Centre, 2-16 Fa Yuen Street, Mongkok, Kowloon
- Regulator reference
- SBO-1856
Sky Leader Limited
SBO Class 3 (ETS)- Address
- 12/F, Trans Asia Centre, 18 Kin Hong Street, Kwai Chung, New Territories
- Regulator reference
- SBO-0930
Skycall Telecom International Limited
SBO Class 3 (ETS)- Address
- Room A, 9/F., Silvercorp International Tower, No.707-713 Nathan Road, Kowloon
- Regulator reference
- SBO-1745
SMARTEL INFORMATION TECHNOLOGY LIMITED
SBO Class 3 (IVANS)- Address
- Flat 905, 9/F, Wang Lung Industrial Building, 11 Lung Tak Street, Tsuen Wan, N.T
- Regulator reference
- SBO-1997
SmarTone Communications Limited
Unified Carrier Licence- Phone
- 2880 2688
- Website
- www.smartone.com/en
- Address
- 31/F, Millenium City 2, 378 Kwun Tong Road, Kwun Tong, Kowloon
- Regulator reference
- UCL-046
SmarTone Mobile Communications Limited
Unified Carrier Licence- Also registered as
- SBO Class 3 (ISP; ETS)
- Phone
- 2880 2688
- Website
- www.smartone.com/en
- Address
- 31/F., Millennium City 2, 378 Kwun Tong Road, Kwun Tong, Kowloon
- Regulator reference
- UCL-018; SBO-0418
SNG WAN LIMITED
SBO Class 3 (IVANS)- Address
- Unit A-E, 13/F, Golden Sun Centre, 59-67 Bonham Strand West, Sheung Wan, Hong Kong
- Regulator reference
- SBO-1805
Softnet Telecommunications (HK) Limited
SBO Class 3 (ISP)- Address
- Office A, 21/F, 235 Wing Lok Street Trade Centre, 235 Wing Lok Street, Sheung Wan, Hong Kong
- Regulator reference
- SBO-1789
SOUTH CHINA TELECOMMUNICATIONS (H.K.) LIMITED
SBO Class 3 (ISP; MVNO; ETS)- Address
- Unit 01-06, 24/F, Sino Favour Centre, 1 On Yip Street, Chai Wan, Hong Kong
- Regulator reference
- SBO-1147
Southern Telecom (Hong Kong) Co., Limited
SBO Class 3 (ISP)- Address
- Room A27, 24/F., Regent’s Park Prince Industrial Building, No. 706 Prince Edward Road East, San Po Kong, Kowloon
- Regulator reference
- SBO-1905
Spacesail International Limited
Unified Carrier Licence- Address
- Room 14, 29/F, Ho King Commercial Centre, 2-16 Fa Yuen Street, Mongkok, Hong Kong
- Regulator reference
- UCL-077
Sparkoo Technologies Hong Kong Co., Limited
SBO Class 3 (ISP; teleconferencing)- Address
- 7/F., Tower 6, The Gateway, No. 9 Canton Road, Tsim Sha Tsui, Kowloon
- Regulator reference
- SBO-1896
SPEED UNION LIMITED
SBO Class 3 (ISP; ETS; teleconferencing)- Address
- Room 607, 6/F, Wayson Commercial Building, 28 Connaught Road West, Sheung Wan, Hong Kong
- Regulator reference
- SBO-1849
SpeedCast Limited
Unified Carrier Licence- Also registered as
- SBO Class 3 (ISP; ETS)
- Address
- 34/F, Tower One Times Square, 1 Matheson Street, Causeway Bay, Hong Kong
- Regulator reference
- UCL-037; SBO-0675
SPEEDER TECHNOLOGY LIMITED
SBO Class 3 (ISP)- Address
- Unit 1406B, 14/F., Belgian Bank Building, 721-725 Nathan Road, Kowloon, Hong Kong
- Regulator reference
- SBO-1944
SPEEDY GROUP CORP. LIMITED
SBO Class 2 (local voice telephony)- Also registered as
- SBO Class 3 (ISP)
- Address
- UNIT 3701P, 02 & 03P, 37/F, ONE KOWLOON, 1 WANG YUEN STREET, KOWLOON BAY, KOWLOON
- Regulator reference
- SBO-0038
SpiderNet IT Service Limited
SBO Class 3 (ISP)- Address
- Flat 33B, 9/F, Chuan Yuan Factory Building, 342-344 Kwun Tong Road, Kowloon
- Regulator reference
- SBO-1990
STARCLOUD INFORMATION LIMITED
SBO Class 3 (ISP)- Address
- Room 185, G/F, Hang Wai Industrial Centre, No. 6 Kin Tai Street, Tuen Mun, N.T
- Regulator reference
- SBO-1908
StarHub (Hong Kong) Limited
Unified Carrier Licence- Address
- Suite 2006, 20th Floor, 340 Queen’s Road Central, Hong Kong
- Regulator reference
- UCL-019
STT Limited
Unified Carrier Licence- Address
- Unit 3110, 31/F, Standard Chartered Tower, Millennium City 1, 388 Kwun Tong Road, Kwun Tong, Kowloon
- Regulator reference
- UCL-005
Success Business Consultant Limited
SBO Class 3 (IVANS)- Address
- Room A, 10/F., Tower A, Billion Centre, 1 Wang Kwong Road, Kowloon Bay, Kowloon
- Regulator reference
- SBO-1550
Sun Mobile Limited
SBO Class 3 (MVNO)- Address
- 39/F., PCCW Tower, Taikoo Place, 979 King’s Road, Quarry Bay, Hong Kong
- Regulator reference
- SBO-1445
Sun Network (Hong Kong) Limited
SBO Class 3 (IVANS)- Address
- Unit 213, 2/F, Block B, Shatin Industrial Building, 5-7 Yuen Shun Circuit, Shatin, N.T
- Regulator reference
- SBO-1400
SUNDII TECHNOLOGY LIMITED
SBO Class 3 (ISP)- Address
- 2/F, Yau Tak Building, 167 Lockhart Road, Wanchai, Hong Kong
- Regulator reference
- SBO-1876
Sunnysite Innovation Technology Hong Kong Limited
SBO Class 3 (ISP)- Address
- Unit 1507C, 15/F, Eastcore, 398 Kwun Tong Road, Kwun Tong, Kowloon
- Regulator reference
- SBO-1886
SunnyVision Limited
SBO Class 3 (ISP)- Address
- Unit 1, 7/F., Midas Plaza, 1 Tai Yau Street, San Po Kong, Kowloon
- Regulator reference
- SBO-1338
SUOZHOU LIMITED
SBO Class 3 (ISP)- Address
- Room A07, 1701-02 New Trend Centre, 704 Prince Edward Road East, San Po Kong, Kowloon
- Regulator reference
- SBO-1975
Symphony Flash-Link (Hong Kong) Telecommunications Co., Limited
SBO Class 3 (ISP)- Address
- Room 5109, 51/F, Central Plaza, 18 Harbour Road, Wan Chai, Hong Kong
- Regulator reference
- SBO-1983
SYNERGY INFORMATION GROUP LIMITED
SBO Class 3 (ISP)- Address
- Office B3, 12/F., Causeway Bay Commercial Building, 3 Sugar Street, Causeway Bay, Hong Kong
- Regulator reference
- SBO-1964
Syniverse Technologies (China) Limited
SBO Class 3 (IVANS)- Address
- Unit 05B-07, Level 15, Millennium City 6, 392 Kwun Tong Road, Kwun Tong, Kowloon
- Regulator reference
- SBO-1593
Syniverse Technologies Asia Pacific Limited
SBO Class 3 (ETS)- Address
- Unit 05B-07, Level 15, Millennium City 6, 392 Kwun Tong Road, Kwun Tong, Kowloon
- Regulator reference
- SBO-1459
Syscloud Hong Kong Network Technology Limited
SBO Class 3 (ISP)- Address
- Unit D18, 3/F., Wong King Industrial Building, No. 2-4 Tai Yau Street, Kowloon
- Regulator reference
- SBO-1915
Systech Telecom Limited
SBO Class 3 (ISP)- Address
- Room 403, 4/F, Valley Centre, 80-82 Morrison Hill Road, Wanchai, Hong Kong
- Regulator reference
- SBO-1029
Independent reference compiled from OFCA (Office of the Communications Authority) - Carrier Licences Enquiry (Unified/Mobile Carrier Licensees) and Services-Based Operator (SBO) Licences Enquiry, with registered addresses taken from the licence documents; service flags from DATA.GOV.HK 'List of SBO Licensees'; hotlines/websites from OFCA's consumer 'Telecommunications Services Providers' page for study and investigative use. Ministry of Cyber Affairs is not a government body and does not represent any listed provider. See the Hong Kong directory overview and the directory hub for other countries.