List of Certification Authorities (CAs) under Thailand NRCA

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22 Jul 2025 581 Share

List of Subordinate Certification Authorities (CAs) under Thailand NRCA


The Electronic Transactions Development Agency (ETDA), as the operator of the Thailand National Root Certification Authority (Thailand NRCA), officially announces the list of Subordinate Certification Authorities (CAs) that have been accredited and operate under the Thailand NRCA framework as follows:




Thai Digital ID Company Limited

319 Chamchuri Square Building, 25th Floor, Room 10-11, Phayathai Road, Pathumwan Subdistrict, Pathumwan District, Bangkok 10330

☏ 02-029-0290 ext. 4

âœ‰ī¸ [email protected]

🌐 https://www.thaidigitalid.com

Internet Thailand Public Company Limited (INET)

1768 Thai Summit Tower, 16th Floor, New Petchburi Road, Bangkapi Subdistrict, Huay Kwang District, Bangkok 10310

☏ 02-257-7111

âœ‰ī¸ [email protected]

🌐 https://ca.inet.co.th

Turnkey Communication Services Public Company Limited (Turnkey)

44/44 Soi Vibhavadi Rangsit 60, Intersection 18-1-2, Talad Bangkhen Subdistrict, Laksi District, Bangkok 10210

☏ 09-6852-6086

âœ‰ī¸ [email protected]

🌐 https://www.thaica.com


The accreditation of these Certification Authorities (CAs) under Thailand NRCA signifies that these organizations have passed security assessments in compliance with the international WebTrust standards conducted by certified WebTrust Practitioners. These CAs have been awarded the WebTrust Seal, demonstrating their trustworthiness and internationally recognized standards.

Reference Standard:

https://www.cpacanada.ca/en/business-and-accounting-resources/audit-and-assurance/overview-of-webtrust-services/principles-and-criteria


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