Surveying Engineering Services

We are providing land & offshore surveying services consisting of hydrography (bathymetry), oceanography, subbottom / seismic, magnetic and meteorological surveying. We are also making custom fitted positioning systems for excavators, dozers, graders, cranes, wheel and crawling equipment, heavy construction machinery, ships, barges, offshore platforms, caisson foundations, pipelines, underwater robots and unmanned surface vessels consisting of electromagnetic, mechanical and acoustics positioning systems. Kordil is eligible of performing surveying and engineering in geodesy, photogrammetry, geophysics and geology. We call Kordil 'Surveying & Engineering Company' registered in Turkey. Kordil was established in 2009 by a few professionals experienced in international companies with a cutting edge reputation worldwide, and we are dedicated to providing a service to you without compromising the quality of service you expect or you get used to. We achieved nonstop growth since then founded. 

Offshore Surveying


Hydrography; bathymetry, oceanography, meteorology, subbottom / seismic, side scan sonar, magnetic and seabed classifications and boring

Engineering Survey


Services in high grade engineering survey, geodesy, geophysics / geology, photogrammetry with provision of qualified personnel and equipment and monitoring surveys for deformation, deflection and settlement

Positioning Systems


Positioning systems for excavator, ship, crane, dredgers, boring and piling rigs, grader, dozer, offshore machinery, remotely operated robots

EdgeTech 3400 Subbottom Profiler

Edgetech 3400 Subbottom Profiler

We are happy to announce another top grade subbottom profiler system in our inventory waiting for customers. Edgetech 3400 is a wide band frequency modulation (FM), CHIRP subbottom profiler operating in 2-16 kHz.

EdgeTech 3400 is a subbottom profiler that uses EdgeTech’s registered Full Spectrum CHIRP technology with Frequency Modulation suitable for most offshore construction and research projects with high quality imaging of strata down to 80 meters from the seabed. The system has a ready to use pipeliner mode suitable for surveying pipelines and cable lines with high ping rate.


  • Enhanced subbottom PVDF receivers
  • Subbottom or pipeliner modes
  • Dual 2-16 kHz CHIRP transducers
  • Pole-mount and towing (both available)
  • Digital receiver on towfish with Ethernet telemetry and power
  • Reduced diameter tow cable
  • Realtime roll, pitch, heave and depth sensors
  • Surface echo attenuation
  • Pulse library tailored for different survey application
  • Data display in multifrequency bands

Suitable for

  • Geological and geophysical research
  • Environmental research projects
  • Seabed classifications
  • Survey for buried pipe and cable lines
  • Archaeological researches
  • Mining and dredging
  • Sediment thickness and sediment mapping

Technical Specifications

  • Frequency band: 2-16 kHz (CHIRP)
  • Vertical resolution: 6-10 cm
  • Penetration: 80 m in clay
  • Transmitter: Full Spectrum® FM Signal CHIRP
  • Operation depth: 300 m

AML-6 Multiparameter Oceanographic SurveyAML Oceanographic AML6 Multiparameter

New design turbidity for measuring conductivity, temperature, depth, salinity, density, pH, dissolved oxygen, sound velocity, and resistivity on a water column. The instrument is in our stocks.

Norah - Hydrographic Survey Vessel

Norah - Survey Vessel

Norah is a versatile hydrographic survey vessel suitable for construction and coastal surveys.


Geometrics G-882 Marine Magnetometer

Geometrics Marine Magnetometer

Geometrics G-882 Marine Magnetometer is a versatile tool for emergency response instrument for offshore and waters. The system is also suitable for debris cleaning, UXO research, route clearance, detecting ferrous objects in various sizes both buried and located on seabed. Geometrics G-882 is also only magnetometer meets with UXO research standards at North Sea.

Futures & Benefits

  • Cesium Vapor High Performance – Highest detection range and high probability of detecting all sized ferrous targets
  • Streamlined Design for Tow Safety – Low probability of fouling in fishing lines or rocks. Rugged fiber-wound fiberglass housing.
  • Sample at up to 20Hz – Unparalleled data density while also covering larger areas per day.
  • Sensor can be Rotated for Optimal Signal – Can be used worldwide.
  • Easy Portability and Handling – No winch required. Built-in easy-carry handle. Operable by a single man; only44 lb with 200 ft cable
  • Combine Multiple Systems for Increased Coverage –Internal CM-221 Mini-counter provides multi-sensor sync and data concatenation, allowing side-by-side coverage which maximizes detection of small targets and reduces noise.

Typical Uses

  • Detection and mapping of ferrous objects: Ferrous objects of all sizes, such as anchors, chains, cables, pipelines, ballast stones and other scattered shipwreck debris, munitions of all sizes (UXO), aircraft, engines and any other object with a magnetic expression.
  • Geologic Studies: Characterize the magnetic signature of the Earth over vast distances for geologic studies

Key specifications

  • Operating principle: Non-radioactive cesium vapor self oscillating split beam
  • Operating range: 20000-100000 nT
  • Sample rate: 20 Hz.
  • Heading error: < 1 nT (over 360 degree spin)
  • Operating zone: The earth's field vector should be at any angle greater than 10 degrees from the sensor's equator and greater than 6 degrees away from the sensor's long axis.

Oceanography Station; ADCP + Wave

LinkQuest FlowQuest ADCP

A FlowQuest 600 kHz Acoustic Doppler Current Profiler was installed to monitor current and wave at Çanakkale Strait. The system was commissioned with a logging interval of 3 hours and set to be working for 1 year. First data downloaded after 1 month proven the data is good and reliable.

Kordil EPS - Ekskavatör Positioning System

Kordil EPS Excavator Positioning System

Kordil EPS is gaining 3D capability for data inspection and visualization. Kordil EPS is Turkey's only and most widely used excavator positioning system preferred by most of offshore construction companies.

Our continuous development in the interface and sensor technologies, made it a versatile tool for offshore industry whom are willing to have a top level precise system at lowest cost. It is now available for third party software integration who is willing to use it in their software that they used to.


Survey Vessel `Coastal Surveyor`

Coastal Surveyor

Coastal Surveyor counting down to being launched. The survey vessel was designed to do surveys at near shore and even in offshore. During construction process, everything is designed for surveyors and survey teams, in terms of speed, maneuverability, cable routes, daily basis installations, antenna and radio poles, free cable inlets, heating, and cooling. The vessel was equipped with to do all kinds of offshore, near shore and surf zone surveys. Designed by surveyors for surveyors.