About Us
RDJ Advisory
Our Key People
Ridzza Djumri, SE, SH, MH, BKP, CTL, CCL
Managing Partner and Founder - Tax and Advocate
Advocate - Tax Advisor, Tax Attorney, Tax and Customs Lawyer
ridzza.djumri@rdj-advisory.com
Ridzza is a highly experienced tax professional with over 20 years of practical expertise in business tax services and tax dispute resolution across a variety of industries. He has held key positions in firms and companies such as PricewaterhouseCoopers (PwC) Indonesia, Ernst & Young (EY) Indonesia, Kraft Foods Indonesia, Maersk Logistics Indonesia, Arghajata Consulting, Darmex Agro Group, Berau Coal Energy Tbk, and most recently, Sinarmas Mining Group, where he served as Tax Advisor.
Ridzza holds a bachelor’s degree in accounting and law and a Master of Business Law from the University of Gadjah Mada. He has completed the Advocate Professional Training Certificate and passed the examination for advocate profession by PERADI, of which he is a member.
He is a Certified Tax Consultant with a C license from the Indonesian Tax Consultant Association (IKPI), as well as a Certified Tax Attorney, Certified Tax Lawyer, and Certified Customs Lawyer accredited by the Indonesian Tax Lawyer and Tax Attorney Association (PKPPI).
In addition to his professional roles, Ridzza serves as the Deputy Chairman for Tax, Finance & Investment, Research & Statistics, and Event & Training for the Indonesian Coal Mining Association (APBI-ICMA). He is also a lecturer at the Tax Centre FISIP UI, sharing his extensive knowledge with future tax professionals.
For the past decade, Ridzza has focused primarily on the coal mining sector, providing business tax advisory, tax compliance, tax controversy, and tax dispute resolution services to a range of companies, including Batara Perkasa, Medco Mining Group, Berau Coal, Berau Coal Energy Tbk, Mutiara Tanjung Lestari, Asian Bulk Logistics, Pelayaran Sanditia Perkasa Maritim, Kirana Berau, Borneo Indobara, Golden Energy Mines, KIM Blocks, and Roundhill Capital Indonesia.
University of Gadjah Mada, Jakarta
Master of Business Law
Perkumpulan Pengacara Pajak dan Kuasa Hukum Pengadilan Pajak Indonesia (PKKPI)
Certified Tax Lawyer – 1112103999
Certified Customs Lawyer – 511210399
Perhimpunan Advokat Indonesia (PERADI)
Advocate – 17.02574
Tax Court
Tax Attorney – KHP-4030
Customs Attorney – KHB-0520
Directorate General of Tax
Tax Consultant, C License – KIP-4756/IP.C/PJ/2019
Sinarmas Mining Group
Tax Advisor, Coal Mining.
Berau Coal Energy, Tbk
Tax General Manager, First Generation of Coal Mining Group.
Indonesian Coal Mining Association (APBI-ICMA)
Deputy Chairman for Tax, Investment and Finance, Coal Mining (Represent Berau Coal as First Generation of CCoW).
Sadhana Advisory (Formerly Arghajata Consulting)
Senior Consultant, Business Tax Advisory.
Darmex Agro Group
GM-Tax, Palm Oil.
Ernst & Young
Senior Tax, Business Tax Services.
Kraft Foods Indonesia
Customs and Tax, Consumer Goods.
Our Partners
Nadiah Said, S.E., M.M.
Partner and Co-Founder
nadiah.said@rdj-advisory.com
University of Indonesia, Jakarta
Master of Management
Indonesian Certified Risk Management
Indonesian Certified Mutual Funds Management
Indonesian Certified Financial Planning (QM)
About Nadiah
Nadiah brings over a decade of practical experience in the banking industry, with a specialization in funding, business development, marketing, communication, and financial services. Her career is marked by a strong sense of discipline, visionary leadership, and high integrity, paired with a relentless drive for achievement. Nadiah thrives in target-driven environments, where she excels at prioritizing tasks and adapting swiftly as a fast learner.
She holds both a bachelor’s and a master’s degree in Management from the University of Indonesia, where she graduated cumlaude in 2004.
Nadiah is certified in Risk Management, Mutual Funds Management, and Financial Planning by QM, further solidifying her credentials in the financial sector.
In addition to her banking expertise, Nadiah has taken on leadership roles, including as Project Leader for events such as Muamalat Berbagi Rezeki, iB Vaganza, Telkomsel Special Program, and QM Financial. In these roles, she contributed to marketing, sales strategies, and strategic planning, while resolving challenges, identifying industry trends, and implementing action plans.
While her experience spans a variety of industries, for the past ten years, Nadiah has concentrated her efforts in the banking and financial services sector, with notable contributions to Bank Muamalat Indonesia Tbk, QM Financial, and CIMB Niaga Tbk.
Yudi S. Gardayudia
Senior Advisor
yudi.gardayudia@rdj-advisory.com
About Yudi
Yudi is a seasoned tax professional with over 30 years of experience at the Directorate General of Taxes (DGT). During his distinguished career, Yudi held several strategic positions that played a pivotal role in advancing tax administration in Indonesia. His last position at DGT was as a Third Echelon Official, reflecting his leadership and expertise within the organization.
One of the pinnacle roles Yudi held was as the Head of the Audit, Collection, Intelligence, and Investigation Division at the DGT Regional Office in South Jakarta I. In this capacity, he oversaw critical aspects of tax auditing, from monitoring the collection process to conducting intelligence and investigating tax cases. His leadership significantly contributed to the successful resolution of several complex tax cases within the region.
Prior to this, Yudi served as the Head of the Sub-Directorate of Audit Techniques and Control at the DGT’s Directorate of Audit and Collection (2015–2019). In this role, he developed and implemented audit strategies to ensure the integrity of tax reporting, addressing the technical challenges that arise during audits.
Yudi also held the position of Head of Objections at the DGT Regional Office of West Java II Bekasi, where he managed objection and appeal cases in the Tax Court.
With his extensive experience, Yudi possesses a profound understanding of Indonesia’s tax regulations and their practical application to business. His expertise covers tax risk management, internal controls, and tax compliance, positioning him as a highly competent tax consultant. He helps companies navigate complex regulations while optimizing their tax strategies for maximum efficiency.
University of Gadjah Mada, Jakarta
Master of Business Law
Perkumpulan Pengacara Pajak dan Kuasa Hukum Pengadilan Pajak Indonesia (PKKPI)
Certified Tax Lawyer – 1112103999
Certified Customs Lawyer – 511210399
Perhimpunan Advokat Indonesia (PERADI)
Advocate – 17.02574
Tax Court
Tax Attorney – KHP-4030
Customs Attorney – KHB-0520
Directorate General of Tax
Tax Consultant, C License – KIP-4756/IP.C/PJ/2019
Sinarmas Mining Group
Tax Advisor, Coal Mining.
Berau Coal Energy, Tbk
Tax General Manager, First Generation of Coal Mining Group.
Indonesian Coal Mining Association (APBI-ICMA)
Deputy Chairman for Tax, Investment and Finance, Coal Mining (Represent Berau Coal as First Generation of CCoW).
Sadhana Advisory (Formerly Arghajata Consulting)
Senior Consultant, Business Tax Advisory.
Darmex Agro Group
GM-Tax, Palm Oil.
Ernst & Young
Senior Tax, Business Tax Services.
Kraft Foods Indonesia
Customs and Tax, Consumer Goods.
Irvan A. Rachman
Director - Transfer Pricing
irvan.setiabudi@rdj-advisory.com
University of Indonesia, Jakarta
Master of Management
Indonesian Certified Risk Management
Indonesian Certified Mutual Funds Management
Indonesian Certified Financial Planning (QM)
About Irvan
Irvan brings over a decade of hands-on experience in business tax services, tax dispute resolution, and data analysis, spanning a wide range of industries. His expertise has been shaped through key roles in prominent companies such as Shanghai Electric Power Construction, Toray International Indonesia, MNC GS Home Shopping Global Ticket Networking, NSK Indonesia, and most recently, as Head of Tax at Space Data Centers.
Irvan holds a Bachelor of Economics from Bina Nusantara University and a Bachelor of Law from Al Azhar University. He is a licensed Tax Consultant, accredited by the Directorate General of Taxes, and holds certification from the State College of Accountancy (STAN).
In addition to his tax expertise, Irvan is proficient in database analysis, allowing him to leverage data-driven insights for transfer pricing strategies and business tax solutions. His broad industry experience spans sectors such as data centers, power construction, trading, e-commerce, global ticketing networks, and various service industries, enabling him to deliver comprehensive, insightful, and data-informed tax solutions that meet the evolving needs of businesses.
Ibnu Tindri Ali
Litigator - Advocate
ibnu@rdj-advisory.com
About Ibnu
Ibnu is a highly skilled Indonesian lawyer with extensive expertise in commercial litigation and dispute resolution. With a proven track record, he provides strategic legal counsel in commercial and criminal litigation, intellectual property, labor law, bankruptcy, and regulatory matters.
Throughout his career, Ibnu has represented clients in complex negotiations and successfully navigated dispute settlements across various legal arenas, including litigation proceedings from the District Court to the Supreme Court, and through arbitration. His specialization covers civil, criminal, and bankruptcy cases, with particular proficiency in handling commercial court cases, arbitration, and other alternative dispute resolution mechanisms. Additionally, he has a wealth of experience in managing tax disputes before the Supreme Court and commercial litigation cases.
Licensed as an advocate by the Indonesian Bar Association (PERADI), Ibnu also holds an Intellectual Property Rights Consultant License from the Ministry of Law and Human Rights. He is actively involved in professional associations, including membership in the Indonesian Intellectual Property Rights Consultant Association (AKHKI) and the Capital Market Legal Consultant Association (HKHPM). Moreover, he is registered with the Financial Services Authority (OJK), further expanding his scope in the legal field.
Ibnu holds a bachelor’s, master’s, and doctorate degree from prestigious universities in Indonesia, solidifying his academic foundation and contributing to his distinguished career as a legal professional.
University of Gadjah Mada, Jakarta
Master of Business Law
Perkumpulan Pengacara Pajak dan Kuasa Hukum Pengadilan Pajak Indonesia (PKKPI)
Certified Tax Lawyer – 1112103999
Certified Customs Lawyer – 511210399
Perhimpunan Advokat Indonesia (PERADI)
Advocate – 17.02574
Tax Court
Tax Attorney – KHP-4030
Customs Attorney – KHB-0520
Directorate General of Tax
Tax Consultant, C License – KIP-4756/IP.C/PJ/2019
Sinarmas Mining Group
Tax Advisor, Coal Mining.
Berau Coal Energy, Tbk
Tax General Manager, First Generation of Coal Mining Group.
Indonesian Coal Mining Association (APBI-ICMA)
Deputy Chairman for Tax, Investment and Finance, Coal Mining (Represent Berau Coal as First Generation of CCoW).
Sadhana Advisory (Formerly Arghajata Consulting)
Senior Consultant, Business Tax Advisory.
Darmex Agro Group
GM-Tax, Palm Oil.
Ernst & Young
Senior Tax, Business Tax Services.
Kraft Foods Indonesia
Customs and Tax, Consumer Goods.
Risyad Arhamullah
Litigator - Advocate
risyad@rdj-advisory.com
University of Indonesia, Jakarta
Master of Management
Indonesian Certified Risk Management
Indonesian Certified Mutual Funds Management
Indonesian Certified Financial Planning (QM)
About Risyad
Risyad is a seasoned Indonesian lawyer based in Jakarta, with a diverse practice that spans multiple industry sectors. His expertise lies in dispute resolution, restructuring, banking and financial institution disputes, commercial fraud, and general corporate matters across various industries, including the airline sector.
Risyad has successfully advised a broad range of domestic and international clients, providing strategic legal solutions tailored to their unique needs and challenges in a rapidly evolving legal landscape.
He is licensed to practice law by the Indonesian Bar Association (PERADI) and holds both a bachelor’s and master’s degree from reputable universities in Indonesia, further demonstrating his strong academic foundation and commitment to legal excellence.
Saving Strategies
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Why RDJ Advisory
We Are Ready To Help You To Get A Solution
RDJ’s management and advisor have been involved in various projects in difference industries including coal mining and mining services, plantation, shipping and freight forwarding, consumer goods, transportation, banking, financial services, pharmacy, pest control and hygiens services.
Professional Team
RDJ’s management and advisor possess extensive experience in the market and leading major transactions for public and private local clients.
Result Driven
RDJ is dedicated in delivering and executing assignments and transactions with a valued-added and customized approach to present the best outcome for our stakeholders.
Our Goals
RDJ Advisory works closely with clients to continuously enhance their corporate value with missions :
- Bringing Success to our clients
- Continuously enhancing client's corporate value corporate
- Delivering results through innovation
Our Vision
“to be the leading advisory firm that brings optimum value creation by connecting people, places, ideas, and continuing to refine our quality, expand our capabilities, efficiency and elevating stakeholders satisfaction to a higher level”
Our Values
We Provide the Best Service
Quality
Trust
Expertise
Integrity
Reliable
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