
Financial clarity for sound decisions.
We bring together accounting, tax, management, and information technology professionals to support private and public sector organisations.
- MoF Decree
- No. 817/KM.1/PPPK/2023
- Service lines
- 5 integrated practices
- Core team
- 20+ years of experience
- Based in
- Depok, West Java

Multidisciplinary expertise, one table.
OPT Konsultan is the accounting services firm (Kantor Jasa Akuntan) of PT Optima Persada Tangguh, based in Depok, West Java. We provide accounting, tax, management consulting, information technology systems, and human resources training.
Our clients range from publicly listed companies and private enterprises to healthcare institutions. Every engagement is led directly by senior practitioners.
Mission
To advance knowledge, skills, and professional competence at every level of our people.
Vision
To support fair and equitable business practices and compliance with prevailing regulations.
Five practice areas.
From routine bookkeeping to restructuring decisions, every service is delivered by experienced practitioners.
- Akuntansi
Accounting
Agreed-upon procedures, due diligence, and process reviews for financial information you can rely on.
- Agreed-Upon Procedures (AUP)
- Due Diligence
- Pre-Transaction Audit
- Accounting Process Review
- Bookkeeping
- Perpajakan
Taxation
Tax planning, diagnostics, and reporting so obligations are met on time and in the right amount.
- Tax Management
- Tax Diagnostic Review
- Tax Reporting & Compliance
- Konsultasi Manajemen
Management Consultancy
Analysis and recommendations for planning, feasibility, and organisational performance.
- Business Planning
- Feasibility Study
- Management Review
- Business Restructuring
- Risk Assessment
- IT Services
Information Systems
Applications and management information systems that support accounting processes and decision-making.
- Information System Applications
- Management Information Systems
- SDM & Pelatihan
HR & Training
Professional training programmes that build the capability of finance and management teams.
- Professional Training
How we work with you.
Initial discussion
We learn your context, challenges, and objectives.
Scope & proposal
Scope, timeline, team, and fees are agreed in writing before work begins.
Execution
Senior practitioners carry out the work with regular updates to management.
Reporting & follow-up
Findings and recommendations are delivered clearly, with implementation support where needed.
Led by seasoned practitioners.
Each brings more than 20 years in accounting, audit, and finance across multinationals, listed companies, and state-owned enterprises.


Slamet Sugiharta, CA, ASEAN CPA, CPA
Director
Professional accountant with experience in both consulting and industry. Specialises in financial risk identification and mitigation, finance transformation, end-to-end finance operations, and the implementation of new accounting standards.
- Chartered Accountant (CA)
- ASEAN CPA
- Certified Public Accountant (CPA)
- B.Econ. Accounting, Universitas Gadjah Mada
- Member of IAI & IAPI
Dr. Hanan Dewa Hadori
Senior Advisor
Finance professional and lecturer with more than 20 years of experience in international finance, business planning and restructuring, and business valuation at major Indonesian companies.
- DBA (Finance), Universiti Kebangsaan Malaysia
- M.Sc. International Finance, CERAM Business School, France
- Master of Management Accounting, Universitas Gadjah Mada
Trusted across sectors.
A selection of organisations we have served.
Finance Consulting
- PT Cisadane Sawit Raya Tbk.Palm oil plantation · IDX: CSRA
Due Diligence
- Dharma Nugraha HospitalPT Digdaya Kancana Pratama
- PT Solusi Optima Perdana
Tax Services
- PT Mazelta Dakara Perdana
- PT MEG Eka Gemilang
Accounting Services
- PT Ghanisa Ridho Indonesia Synergy
Frequently asked questions.
Can OPT audit financial statements and issue an opinion?
No. As a Kantor Jasa Akuntan (accounting services firm), we do not provide assurance services in the form of an opinion on financial statements — that is reserved for public accounting firms (KAP). We help through agreed-upon procedures, due diligence, pre-transaction audits, accounting process reviews, and bookkeeping.
Which organisations do you serve?
Private and public sector organisations — from listed companies and family businesses to healthcare institutions.
How do we get started?
Fill in the contact form or reach us on WhatsApp. We will schedule an initial discussion, then send a written proposal covering scope, timeline, and fees.
How is our data kept confidential?
Client confidentiality is a professional obligation. Access is limited to the assigned team, and a non-disclosure agreement can be signed before any documents are shared.
Licensed by the Ministry of Finance of the Republic of Indonesia
The accounting services firm PT Optima Persada Tangguh holds a business licence issued by Decree of the Minister of Finance of the Republic of Indonesia, pursuant to PMK No. 216/PMK.01/2017 on Registered Accountants.
- Decree number
- 817/KM.1/PPPK/2023
- Issued
- Domicile
- Depok, West Java
Let’s discuss what your organisation needs.
Tell us about the challenge you are facing. We will get back to you within one business day to arrange an initial discussion.
- WhatsAppChat with us
- Emailinfo@opt-konsultan.com
- Address · Open in Google MapsJl. Anyelir 4 No. 153, Depok Jaya, Pancoran Mas, Kota Depok, Jawa Barat 16432
- Instagram@optkonsultan

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