Company Profile

Today, we are recognized as a National leader in the ports and harbors development.

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Contact Us


Agnesia Building 2nd Floor

Jl. Pemuda 73B Jakarta 13220, Indonesia
Phone :   021- 4701356
  :   021- 4701357
Email :


Leading Port Engineering

Diagram Triproporsi has been experienced in many port and harbor projects since 1980. And now, We are known as The Leading Port Consultant Company in Indonesia.

Our Clients

Our clients are goverment and private companies.

Our Professional Team

We have expert engineers with the scope of Port Engineering Design, Geotechnical, Mechanical-Electrical and Survey Investigation
Office Diagram Triproporsi

Diagram Triproporsi Engineering Consultant was founded in 1980 with intensive projects portfolio in ports, harbors and urban drainage. We have expanded our experiences in internationally funded projects from World Bank and Asian Development Bank over the years by forming several consortium joint ventures with global design firms from Japan, Netherlands and USA, such Pacific Consultant International, Nippon Koei, NEDECO, and The Louis Berger Group Inc.

Today, we are recognized as a national leader in the ports and harbors development. We offer a full range of professional services from feasibility study, various surveys, designs, trainings to contract administration which includes but not limited to supervision and construction management. Being a member of both The National Association of Indonesia Consultants and Indonesian Chamber of Commerce and Industry since our inception allows us to provide professional services not only to private sector but also to various Government Departments and Agencies.

We believe there is always room for improvement and in order for us to serve our clients more efficiently, cost effectively and to the highest standard, we constantly enhance our design and engineering capability and expertise with trainings and utilization of latest design applications and tools. Our commitment to strive for the best and customer oriented satisfaction has earned us with repeat clients.

Proud of our employees and products, proven track records, coupled with innovation, creativity, integrity and ethical business practices as our core values, we serve and meet our clients’ project needs beyond expectation. We welcome you to our website and encourage you to explore of our services and our career opportunities. We pleased if any comments or observations you may have about our website. Thanks for taking the time reading our company profile.


About Us

PT. Diagram Triproporsi Engineering Consultant was founded in 1980 with intensive projects portfolio in ports, harbors and urban drainage. Read more...

Contact Info


+62 (021) 4701356
+62 (021) 4701357



Agnesia Building 2nd floor, Jl. Pemuda 73B Jakarta 13220 Indonesia