Expanding Our Knowledge Base in Maritime Law with the Appointment of Tiyana Sigi Pertiwi
July 16, 2025
At Anggraeni and Partners, we recognise that delivering high-quality legal services in a complex and rapidly evolving regulatory environment requires more than case-by-case analysis. It demands a structured and forward-looking approach to knowledge development, management, and dissemination across the firm. To that end, we are pleased to announce the appointment of Tiyana Sigi Pertiwi, S.H., LL.M. as a Knowledge Lawyer for our Ocean, Maritime, Climate and Trade practice group.
The Role and Importance of a Knowledge Lawyer
A Knowledge Lawyer is a senior legal professional who focuses on the systematic development and management of legal knowledge within the firm. While not engaged in billable client work, the Knowledge Lawyer plays an essential role in ensuring that legal teams operate with accuracy, efficiency, and strategic clarity.
This position involves monitoring legal and regulatory developments, maintaining and updating internal guidance materials, managing precedents and legal templates, and supporting continuing legal education by devising and handling legal trainings within and outside the firm. A Knowledge Lawyer also contributes to thought leadership and legal scholarship, enhancing the firm’s standing in the broader legal community.
In jurisdictions such as Indonesia, where domestic regulations increasingly intersect with international obligations—particularly in the maritime sector—the role of a Knowledge Lawyer is critical in bridging global and local legal frameworks.
Appointment of Tiyana Sigi Pertiwi, S.H., LL.M.
Tiyana Sigi Pertiwi joins Anggraeni and Partners with an academic background in both Indonesian and international law. She obtained her Bachelor of Laws (S.H.) from the University of Indonesia and subsequently earned her Master of Laws (LL.M.) in Maritime Law from the University of Southampton, a globally recognised centre for shipping and maritime studies in the United Kingdom. Prior to joining Anggraeni and Partners, she has accumulated experience working as an international lawyer in the Asia-Pacific, with postings in Jakarta, Beijing and Osaka.
Tiyana brings with her a robust understanding of both civil and common law perspectives on maritime issues, including shipping disputes, liability regimes, international conventions, and environmental compliance frameworks.
Scope of Responsibilities
As a Knowledge Lawyer for the Ocean, Maritime, Climate and Trade practice group, Tiyana is responsible for:
Monitoring Legal Developments
Ensuring that the firm remains informed of national and international legislative updates, treaty developments, and judicial decisions relevant to the maritime sector.
Practice Development and Support
Preparing internal legal memoranda, client briefing notes, comparative studies, and reference materials to support the firm’s advisory and dispute resolution services.
Precedent and Toolkit Management
Updating legal templates, checklists, and practice guides to ensure alignment with evolving standards and regulatory requirements.
Internal Training and Knowledge Sharing
Designing and delivering training sessions to enhance the legal capabilities of the firm’s professionals, particularly in high-risk and specialised practice areas.
Thought Leadership and Publication
Contributing to legal scholarship through articles, commentaries, and interviews in leading legal platforms and academic forums.
Legal Research and Writing
Participating in research initiatives and writing publications for legal articles and journals.
Selected Publications
Tiyana’s recent publications reflect her expertise in maritime and international arbitration law, and her commitment to contributing to ongoing legal discourse. These include:
Supporting the Firm’s Professional Support Lawyer Initiative
Tiyana also contributes to the firm’s broader Professional Support Lawyer initiative, which ensures that our teams remain well-informed, consistent in legal execution, and aligned with best practices across jurisdictions. This initiative forms part of Anggraeni and Partners’ continuous investment in institutional knowledge and legal innovation.
Her work directly enhances our ability to deliver strategic, responsive, and technically sound legal advice to clients in the maritime, shipping, energy, arbitration and environmental sectors.
