Beyond the Surface: Precision Hydrographic & Bathymetric Intelligence

Stop guessing what lies beneath. From supplying survey-grade sonar technology to delivering expert-led bathymetric surveys, we provide the sub-surface clarity required to manage inland waterways, harbors, and critical infrastructure with absolute certainty.

Why PQS?

Most vendors sell hardware. We deliver results.

PQS is an engineering powerhouse, not a retailer. We don't just move boxes; we architect the data acquisition workflows that define sub-surface environments. Because our teams use this technology in the most challenging inland and coastal waters, we know that in hydrography, "near enough" is a failure.

We offer two clear paths to sub-surface intelligence:

  • Managed Survey Services: Let our experts handle the complexity. We provide end-to-end bathymetric surveys, volume calculations, and 3D bed modelling- delivering the final, actionable data you need without the overhead of a fleet.
  • Precision Hardware Supply: We supply the same field-proven Multi-beam, Single-beam, and USV systems we trust ourselves. You get the gear, backed by the technical expertise to ensure it performs on day one.

We deploy what we provide. We provide what we trust.

Learn More

Buy the Technology

Build your internal capability. We supply and support the industry’s leading hardware and processing software.

Authorised Dealer & Certified Training

Hire the Experts

Need results now? Deploy our field teams to capture, process, and deliver data for your specific project.

No capital expenditure. Immediate mobilisation.

Why the industry trusts PQS Tech

We are unique because we do both. We don't just sell boxes; we use this equipment in the field every day. And we don't just offer services; we have direct access to the latest cutting-edge tech.

For Buyers

You get advice from active users, not just salespeople. We know what works in the real world.

For Service Clients

You get access to the absolute best technology without the overhead cost.

Not sure if you're ready to buy?

TRY THE PQS PROOF OF CONCEPT

Hire us for one project. Watch the workflow. See the data. If you decide to buy the equipment afterwards, we’ll credit a portion of the service fee toward your purchase.

Service Project

Appoint PQS Tech to complete a project on your behalf.

Validation

Validate the workflows, outputs and workflows through real-world data.

Equipment Purchase

After you're 100% confident that it's the right solution for you.

WE KNOW YOUR WORLD: HYDROGRAPHIC & BATHYMETRIC

We supply the high-resolution Multi-beam and Single-beam Echosounders, Side Scan Sonars, and USVs required for complex inland and coastal mapping. We ensure your hardware is perfectly calibrated for shallow-water precision, delivering "clean" data from the first ping.

Leverage our technical team for end-to-end surveys of rivers, lakes, and harbours. From port maintenance and dredging support to volume calculations, we deliver precise 3D models of the bed without the overhead of you maintaining a specialised marine fleet.

Transition to semi-automated sub-surface oversight. Our systems provide continuous monitoring of siltation, bridge scour, and structural integrity for inland infrastructure, giving you the data needed for proactive maintenance in dynamic environments.

Transform raw acoustic pings into actionable intelligence. We integrate bathymetric data into your existing workflows, ensuring underwater assets and surfaces are visualised with the same precision as your land-based projects.

Trusted by industry leaders

National Grid logo blue text, related to professional surveying equipment
Galliford Try logo, modern design for professional surveying equipment
COLAS logo on a bright yellow background, related to professional surveying equipment
Mace logo with colorful vertical bars, related to professional surveying equipment
SISK Builders Contractors logo in red with outlined text
National Grid logo blue text, related to professional surveying equipment
Galliford Try logo, modern design for professional surveying equipment
COLAS logo on a bright yellow background, related to professional surveying equipment
Mace logo with colorful vertical bars, related to professional surveying equipment
SISK Builders Contractors logo in red with outlined text
National Grid logo blue text, related to professional surveying equipment
Galliford Try logo, modern design for professional surveying equipment
COLAS logo on a bright yellow background, related to professional surveying equipment
Mace logo with colorful vertical bars, related to professional surveying equipment
SISK Builders Contractors logo in red with outlined text

NEED DATA NOW?

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Hydrography and Bathymetry Featured Products