Chambers Asia Pacific

Feb 18, 2026

  • “Band 1” ranking for “Intellectual Property” in Indonesia
  • The publication noted that “The firm is entrusted by multinational brands on trademark matters, including cancellation and opposition claims. The team advises on franchising matters, as well as patent prosecution. Januar Jahja & Partners regularly advises several prominent global brands in the retail, TMT, pharmaceutical, manufacturing and hospitality industries.”
  • The publication also highlighted JJP’s recent litigation work, mentioning that the firm “advised foreign language testing service, Educational Testing Services, on filing a complaint to the Indonesian Name Registry (PANDI) regarding the use of some offending domain names using the .id domain that were intentionally misleading consumers.”
  • Prudence Jahja is described as “a managing partner who heads Januar Jahja and Partners’ intellectual property practice. She frequently advises multinational clients on trade mark prosecution and litigation, alongside enforcement and infringement matters.”
  • According to a client, “Prudence Jahja is extremely knowledgeable and communicative.”
  • Foreign IP Consultant, Andrew Diamond, mentioned as “a foreign legal consultant who attracts praise from market sources for his considerable experience in Indonesia. He has a broad practice including expertise in patent filing and searches, as well as trade mark disputes”. A client stated that he is “very client-focused”.
  • Ranked LawyersPrudence Jahja – Band 1; Andrew Diamond – Spotlight Table, Foreign Legal Consultants.
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