Meet Our Experts
Seasoned Professionals
People who are skilled and experienced in their field—your trusted solution for any challenge.
Tjia Siauw Jan, SE, Ak, SH, CA, BPK, MA
Director
Bambang Siswanto, SE
Consultant
Dr. Tjia Siauw Jan, S.E., Ak., M.A., S.H., M.H
Tjia Siauw Jan, originally from Indonesia, is a charismatic and highly trusted tax consultant, legal advisor, and business leader with a strong background in finance, law, and fiscal policy. With decades of hands-on experience in both corporate management and legal-tax consulting, he exemplifies integrity, strategic thinking, and professionalism—qualities that have earned him lasting respect and trust across industries. His career reflects not only technical excellence but also visionary leadership rooted in Indonesian values and global standards.
Educational Background
- 2002 – Trisakti University
Bachelor’s Degree in Economics, Major in Accounting - 2010 – Tama Jagakarsa University
Bachelor’s Degree in Law - 2012 – University of Indonesia (Graduate Program)
Master’s Degree in Social and Political Sciences – Fiscal Policy Concentration
Certifications & Informal Education
- 2006 – Certified Professional Accountant (Akuntan Profesional)
- 2010 – Passed USKP Brevet C (Certified in Advanced Taxation)
- 2010 – Completed Customs Course
- 2013 – Completed PERADI Advocate Training Course (Licensed Lawyer)
Professional Experience
- 1992–2001 – Finance & Accounting Manager at PT Jaya Abadi Mulia Kimia
- 2002–2006 – General Manager of Finance & Tax at PT Bina Karya Prima
- 2006–Present – Tax Consultant, Legal Counsel, Director at PT Cipta Solusindo Prima, Managing Partner at CSP Tax Consultant
Public Involvement
- 2020–2025 – Council Member, National Leadership Council (DPN) of PERADI
- Director of Corporate Finance at PT Sulindafin (according to LinkedIn profile)
- Contributor to academic research on legal and taxation frameworks in Indonesia (ResearchGate)
Bambang Siswanto, SE
Trusted Expertise You Can Rely On
With over 30 years of proven experience, Bambang Siswanto is widely recognized as a trusted authority in taxation, corporate law, and fiscal policy. His reputation is built on a foundation of integrity, precision, and ethical leadership—qualities that have earned him the confidence of clients, colleagues, and institutions alike. Whether advising corporations, representing legal interests, or shaping policy discourse, he brings clarity, professionalism, and unwavering dedication. His thought leadership and public presence can be seen across professional platforms such as Twitter/X, where he shares updates and engages with wider audiences. His involvement in academic research and national legal associations further reflects a deep commitment to transparency, learning, and long-term impact.
Educational Background
- 1998 – Lulus S-1 Ekonomi – Akuntansi Universitas Trisakti
- 1995 – Lulus Program Diploma III – Perpajakan
Pengalaman
- 1995 – 1998 : Pemeriksa di KPP Penanaman Modal Asing
- 1998 – 2000 : Pemeriksa di KPP Penanaman Modal Asing Satu
- 2000 – 2007 : Pemeriksa di KPP Perusahaan Masuk Bursa
- 2007 – 2010 : Penelaah Keberatan di KAnwil DJP Jakarta Khusus
- 2010 – 2014 : Penelaah Keberatan di Direktorat Keberatan dan Banding
- 2014 – Sekarang : Konsultan di PT Cipta Solusindo Prima
Educational Background
- 2002 – Trisakti University
Bachelor’s Degree in Economics, Major in Accounting - 2010 – Tama Jagakarsa University
Bachelor’s Degree in Law - 2012 – University of Indonesia (Graduate Program)
Master’s Degree in Social and Political Sciences – Fiscal Policy Concentration
Certifications & Informal Education
- 2006 – Certified Professional Accountant (Akuntan Profesional)
- 2010 – Passed USKP Brevet C (Certified in Advanced Taxation)
- 2010 – Completed Customs Course
- 2013 – Completed PERADI Advocate Training Course (Licensed Lawyer)
- 1992–2001 – Finance & Accounting Manager at PT Jaya Abadi Mulia Kimia
- 2002–2006 – General Manager of Finance & Tax at PT Bina Karya Prima
- 2006–Present – Tax Consultant, Legal Counsel, Director at PT Cipta Solusindo Prima, Managing Partner at CSP Tax Consultant
