Aerial night view of Jakarta’s business district
Accounting Services Firm · Licensed by the Ministry of Finance

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
Professionals in discussion in a Jakarta office meeting room
About Us

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.

Services

Five practice areas.

From routine bookkeeping to restructuring decisions, every service is delivered by experienced practitioners.

Our Approach

How we work with you.

  1. Initial discussion

    We learn your context, challenges, and objectives.

  2. Scope & proposal

    Scope, timeline, team, and fees are agreed in writing before work begins.

  3. Execution

    Senior practitioners carry out the work with regular updates to management.

  4. Reporting & follow-up

    Findings and recommendations are delivered clearly, with implementation support where needed.

Core Team

Led by seasoned practitioners.

Each brings more than 20 years in accounting, audit, and finance across multinationals, listed companies, and state-owned enterprises.

Professional team in discussion around a meeting table
  • Slamet Sugiharta

    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
Clients

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
FAQ

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.

Contact Us

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.

Consultant in discussion with a client at the office

Consultation request

At least 20 characters. Please do not send documents or sensitive data through this form.