Home - CSI - Consultant

We Are CSI Consultant

CSI Consultant is the first integrated consulting company in Indonesia to have services in tax, legal, and accounting—integrated consultancy. With our specialty in transaction services and deliverance in local and international transactions, we continue to take on new challenges and provide the best solution.

Our Founder

With our specialty in transaction services and deliverance in local and international transactions
We continue to take on new challenges and provide the best solution.

Constantinus Pratama Rettob, S.E., M.Ak., CTA

Director of Tax

Ivan Liyanto, S.E., C.DPO

President Director

Siti Muhyinatun M, S.H., C.LA, C.DPO, C.LDSP

Director of Legal

Our Services

Our programs are unique to every client.
We can assemble a multidisciplinary team who know your unique challenges
and understand your situation inside and out to help you achieve your growth goals.

Business Transaction Program

To provide our client with our best advisory and procedure on every transaction in business, such as merger and acquisition, finance...

Litigation and Dispute Program

To achieve the success of legal and tax cases, we develop the best dispute and litigation schemes to provide the required solution to the existing...

Business Compliance Program

To give our clients comfort in doing their business, we assist with end- to-end solution compliance service to mitigate risk from legal, tax and...

Testimonials

Hundreds of companies and business leaders trust us in transaction services,
tailoring programs to the industry and meeting client needs.
But don’t take it from us – here’s what our clients say:

CSI Consultant is an invaluable legal source and partner. They engage with MICO and understand our needs. Mrs. Siti Muhyinatun and the team initially helped us navigate a potential business transaction, pulling together the key legal experts we needed across various issues. They also helped smoothly navigate setting up our business, from structural advice to finalizing a comprehensive partnership agreement.

DinaHRD Manager MICO

CSI Consultant has been providing tax services for Ayyomifarm for the last three years taking care of company tax and my tax compliance. Their team is easy to work with, informed, efficient, pleasant, and always prompt in responding to inquiries and calls.

Pak Yonick LasamahuCEO - PT. Ayyomi Agro Perkasa

Highly recommend these guys to everyone who is in search of fresh ideas, quality products and excellent customer support. You will be able to find what you need and more right here with no hassle. Thanks for your time and efford toward our project. We will stay in touch!

Pak HengkyDirektur - PT Celebes Multisarana Sakti

I enjoyed working with you guys very much! No matter what issues or questions popped up, you were always there to assist. I appreciate your service, quality products and professional approach in every aspect. Keep up the excellent job and let us know what comes next!

Pak DwiPT. GUNANUSA UTAMA FABRICATORS