Our Partners

ryanto-piter

Ryanto Piter, SE, MM, Ak, CA, CPA, CLI, CFrA, CFP
(Managing Partner)

Ryanto Piter, SE, MM, Ak, CA, CPA, CLI, CFrA, CFP was graduated form North Sumatera University (USU), Medan in 2004.

Prior joining to LEA Indonesia, Piter has experiences as an Associate Partner with Kreston International and Grant Thornton Indonesia with various industry clients, especially in state-owned enterprises and banks.

Piter is member of Indonesian Institute of Accountants (IAI) and the Indonesian Institute of Certified Public Accountants (IAPI), Association of Indonesian Liquidator (PPLI), Indonesian Association of Receivers And Administration (AKPI), and Indonesian Association of Forensic Auditor (AAFI) and and a registered accountant at the Financial Services Authority (OJK) and The Audit Board of The Republic of Indonesia (BPK RI).

joachim-sulistyo

Drs. Joachim Sulistyo, MBA., AK., CA., CPA.
(Partner)

Founder of Public Accounting Firm Joachim Adhi Piter Poltak & Partners. Currently serving as Partner.

Graduated from Gadjah Mada University in Yogyakarta in 1981, and continued his studies for the MBA Program at Saint Mary’s University, Canada in 1989-1990. He is also a graduate of the Masters in Management at the University of Indonesia.

Previously, he worked for 12 years in the Hadori and Associate Public Accountant Firms, as a Partner.

Joachim is a member of the Indonesian Institute of Accountants (IAI), the Indonesian Institute of Certified Public Accountants (IAPI), and is a Public Accountant registered with Otoritas Jasa Keuangan (OJK) and Badan Pemeriksa Keuangan (BPK).

Adhi-Yudho-Pradipto
Agustinus Adhi Yudho Pradipto, CA., CPA.
(Partner)

Completed the last study in Accounting Professional Education at Gadjah Mada University.

Experienced since 2009 in the Public Accounting Firm Joachim Adhi Piter Poltak & Partners. Previously for 6 years experience in the Information Technology Industry.

Agustunus Adhi Yudho Pradipto, is a member of the Indonesian Institute of Accountants (IAI), and the Indonesian Institute of Certified Public Accountants (IAPI), and obtained a Public Accountant license in 2017.

Poltak Situmorang, CA., CPA.
(Partner)

Completed his studies at Nommensen University, Medan in 1989.

Joined Joachim Adhi Piter Poltak & Partners in 2009. Previously had 15 years experience as a Partner Assurance at Grant Thornton with insurance clients in various industrial sectors.

Poltak is a member of the Indonesian Institute of Accountants (IAI), and the Indonesian Institute of Certified Public Accountants (IAPI), and is a Public Accountant registered with Otoritas Jasa keuangan (OJK).

fx-sumartono
FX. Sumartono, Ak. M.Si., CA., CPA.
(Partner)

Is one of the founding partners of the Public Accounting Firm Joachim Adhi Poltak Piter & Partners.

Completed his last study at Diponegoro University Semarang, took a professional program and Masters in Accounting Science.

Previously had 25 years experience in Hadori and Associate Public Accounting Firms with clients in various industrial sectors.

Sumartono, is a member of the Indonesian Institute of Accountants (IAI), and the Indonesian Institute of Certified Public Accountants (IAPI).