Leraand Engineering Inc. (LEI) is a Hawaii-based company and provide specialized services and software solutions for the deployment of marine cables, tracking of towed-cable systems and hydrographic surveys. Leraand Engineering Inc. develops SonarTRX, a sidescan sonar software for mapping the seabed using low cost, off-the-shelf fishfinders with sidescan capabilities. SonarTRX can be part of a very cost effective survey & monitoring solution for shallow water marine habitats, rivers & lakes, harbors & marinas.

About us

LEI's sidescan sonar software: SonarTRX was released in 2010 and has sold to users in more than 20 countries. SonarTRX makes it easy to generate geo-referenced sidescan images for viewing with Google Earth, or import to GIS for more advanced processing. SonarTRX can process data from a variety of sidescan sonars, including low cost, consumer grade fishfinders.


Leraand - Marine Cable Systems

Cable-ship commissioning and sea-trials (On-site construction management), At-sea cable installation services, Training of personnel in use of cable lay control systems, Owners-representation during route-survey / cable lay, GIS-based planning, Static and dynamic analysis of deployment operations.


Software Development Services

Software for static and dynamic analysis of marine cable systems, Sonar processing, GIS tools & customization, Ocean Engineering utilities and tools, Motion control systems.

Other Engineering Services

GIS data conversion, processing and spatial analysis, Terrain processing, 3D Modeling and visualization, Deep ocean HDPE pipeline design, Seawater Air-conditioning - Feasibility studies.


SonarTRX - Version LSS Pro - Import Sonar Files Software

SonarTRX-LSS is for use with Lowrance sonars only. It has otherwise the same functionality as SonarTRX Pro, except that it does not come in a 64 bit version.

SonarTRX - Version Pro - For Import Sonar Files Software

The full version of SonarTRX has the ability to import sonar files from several sonar manufacturers. It can calculate the 'first echo return' based on the recorded sonar data, and also allows for digitizing the seabed manually for slant range correction. SonarTRX Pro (x64) is a 64 bit version that requires a 64 bit Windows operating system. It is capable of better utilizing available memory and allows for loading of larger sonar recordings and ...

Company details

Business Type:
Software vendor

Industry Type:
Environmental - Environmental Data and IT Systems

Market Focus:
Globally (various continents)

Year Founded:


less than $1,000,000 US

Office & Distributor locations:


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