The Leading Soil Investigation, Surveys & Engineering Services


Geotechnical Investigation

Our aims are to achieve and maintain a high standard in soil investigation by initiating and maintaining good practice and procedures.


Topographycal & Bathymetric Surveys

Equipped with highly technologies and professionals, we will ensure that our recommendation for topography meet the standards and expectation.



Our in-house laboratory offers an extensive range of geotechnical testing for both soils and rocks.


Project Supervision

Soilens is renowned for providing highly qualified, accurate, and time efficient supervision service to support and enhance the project execution.

Latest Projects

Who We Are


Civil Engineering Consultant

Established in 1971 by a partnership of Ir. Hadi Husni Mantjanegara, Ir. Rismantojo, and Ir. Sawarso Wignjosajono PT Soilens has been trusted by numbers of domestic (private and government) and overseas clients, both contractors and project owners to perform soil investigations survey, construction, supervision, and other engineering services. Our projects portfolio covers more than 2,500 projects.

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Free consulting


If you are confusing? Do not worry. We offer free consultation to help you make a decision with the best creativity and quality that you deserve.

Why Choose Us

Higly Qualified Professionals

Our organization consists of 110 people. The key employees are members of local and overseas professional organizations. Some of them have been professionally certified to ensure consistent delivery of quality services to our clients.

Well-Maintained Facilities

Our field and laboratory equipment is comprehensive and well maintained to ensure that it delivers reliable results to support the decision making process.

Proven Quality Assurance Process

Our quality assurance process has always been tested and improved overtime to ensure that we deliver our best services to our clients.


Our experiences in thousands of projects have given us valuable knowledge that we always share both internally and externally. We take advantage of this knowledge sharing to improve our performance in delivering the most economical result to our clients without sacrificing quality.

Comprehensive Service Capability

Our organization is capable of performing work from pre-feasibility study to construction supervision.

Open Door Policy

Our organization always welcomes clients or related parties who would like to visit our Head Office and Laboratories, both in project sites and in the office.

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