What SonarTech does

SonarTech Co., Ltd. (소나테크 주식회사) is a privately held South Korean underwater technology company headquartered in Busan, founded in October 2000. The company designs, develops, and manufactures underwater sonar systems, with a product portfolio spanning four main categories: sonar products (side scan sonar S-150D, singlebeam echo sounder D-150P, sub-bottom profilers, wearable diver sonar), defense products (the SEAView-1030 hull-mounted mine hunting sonar with proprietary TGT tracking technology, anti-submarine warfare USVs, and sonobuoys), ocean robots (integrated sonar modules for AUV/ROV platforms), and measurement equipment (underwater radiated noise measurement devices and sound source generators). The underlying technology is centered on underwater acoustic signal processing, with the proprietary TGT (Tracking Guide Technology) enabling classification of real mines versus false targets during mine countermeasure operations.

The company's primary customer segment is the Korean Navy and the Defense Acquisition Program Administration (DAPA), with secondary segments in commercial maritime/ocean survey and underwater measurement/testing. SonarTech operates a direct enterprise sales model with Korean defense customers, complemented by an exclusive Nordic distribution agreement with Meridata Finland Ltd and active participation in international defense exhibitions (MADEX, DSA, BSDA) for global demand generation. SonarTech generates revenue exclusively through hardware sales across its four product lines; pricing is not publicly disclosed and requires direct inquiry. The company is registered as a qualified military supplier and holds multiple defense certifications including DQ Mark certification, INNO-BIZ designation, and consecutive Defense Innovation Company 100 recognition (2024, 2025). With 11-50 employees and 25+ years of operating history, SonarTech has pursued growth through acquisitions (Daewoo Shipbuilding ENR business unit in 2012, Meta Networks in 2021) and infrastructure expansion (new HQ in 2015, Jangan Campus in July 2026).

Name

SonarTech

Legal name

소나테크 주식회사 (SonarTech Co., Ltd.)

Website

https://sonartech.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

11–50 employees

Short description

SonarTech (소나테크) is a privately held South Korean underwater technology company founded in 2000, headquartered in Busan. It designs and manufactures sonar systems, mine hunting sonars, ocean robots, and measurement equipment primarily for the Korean Navy and defense procurement agencies, with growing international presence via defense exhibitions.

Ownership category

akta.pro rank

Product category

Underwater Sonar Systems

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Other Support Activities for Water Transportation (48839)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Ordnance & Accessories, (No Vehicles/Guided Missiles) (3480)

akta.pro primary industry

Sonar, Undersea Sensors & Acoustic Detection Systems (IMABAGAD)

akta.pro secondary industries

Naval Sensors & Sonar Systems (IMABAKAD), Maritime Unmanned Systems (USV/UUV) & Control Stations (IMABAKAJ), Unmanned Surface Vehicles (USV) & Autonomous Maritime Surface Platforms (IMABAIAE)

Keywords

• Underwater sonar systems
• Mine hunting sonar
• Side scan sonar
• Anti-submarine warfare
• Marine acoustic technology

Headquarters

HQ city

Busan

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Sonar Products: Sale of underwater sonar products including side scan sonar (S-150 series), singlebeam echo sounders, sub-bottom profilers, and wearable diver sonar for commercial and defense applications.
2. Defense/Military Products: Sale of naval defense products including mine hunting sonar (SEAView-1030), anti-submarine warfare unmanned surface vessels (USV), and sonobuoy products for military customers.
3. Ocean Robots: Sale of ocean robotics including unmanned surface vessels (USV), integrated sonar modules for AUV/ROV, and mission sensor modules.
4. Measurement Equipment: Sale of underwater measurement equipment including underwater radiated noise measurement devices and underwater sound source generators for testing and certification purposes.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

SonarTech designs, develops, and manufactures underwater sonar equipment for defense and commercial maritime markets. Its product portfolio spans side scan sonar systems, singlebeam echo sounders, sub-bottom profilers, wearable diver sonar, the SEAView-1030 hull-mounted mine hunting sonar, integrated sonar modules for AUV/ROV platforms, anti-submarine warfare unmanned surface vehicles (USV), sonobuoys, and underwater radiated noise measurement equipment. Products are sold to naval forces, defense procurement agencies, and commercial maritime survey customers.

Product overview

SonarTech offers a comprehensive underwater technology portfolio centered on sonar systems and ocean robotics. The core product lines include: (1) Sonar Products featuring side scan sonar systems (S-150D), singlebeam echo sounders (D-150P), sub-bottom profilers, and wearable diver sonar; (2) Defense Products led by the SEAView-1030 Mine Hunting & Tracking Sonar for naval mine countermeasures, plus anti-submarine warfare unmanned surface vehicles (USV) and sonobuoys; (3) Ocean Robots including integrated sonar modules for AUV/ROV platforms; and (4) Measuring Equipment such as underwater radiated noise measurement devices and sound source generators. The company operates as a single unified product portfolio unified by underwater acoustic technology, serving both commercial maritime survey and defense/naval applications.

Differentiator

Problem solved

Functional benefit

Products and services

• Sonar Products (소나제품) Underwater sonar equipment including side scan sonar systems, singlebeam echo sounders, sub-bottom profilers, and wearable diver sonar systems used for seabed mapping, underwater imaging, depth measurement, and detection in maritime survey applications.
• S-150D Side Scan Sonar Side scan sonar system for underwater seabed imaging and detection, offered with multiple frequency options (400kHz–1250kHz) and swath ranges up to 150m.
• D-150P Singlebeam Echo Sounder Singlebeam sonar system used for depth measurement and underwater detection in maritime survey operations.
• Wearable Diver Sonar (웨어러블다이버소나) Compact, wearable sonar system designed for divers, providing portable underwater detection capabilities. Recognized as a 2024 excellent commercial product suitable for demonstration use.
• SEAView-1030 Mine Hunting & Tracking Sonar Hull-mounted sonar (HMS) system for naval mine countermeasures. Features proprietary TGT (Tracking Guide Technology) for target classification, 3D target identification, electronic chart mapping, and search arc extension up to 120 degrees. Designed for naval vessels conducting MCM operations.
• Defense Products (방산제품) Defense sector product line including sonar systems for mine warfare (기뢰전) and anti-submarine warfare (대잠전) applications, supplied to naval forces and defense procurement agencies.
• Ocean Robots (해양로봇) Autonomous and remotely operated underwater and surface vehicle products including integrated sonar modules for AUV/ROV systems and unmanned surface vessels for anti-submarine warfare.
• Integrated Sonar Module for AUV/ROV Integrated sonar module designed for integration with Autonomous Underwater Vehicles (AUV) and Remotely Operated Vehicles (ROV).
• Anti-Submarine Warfare Unmanned Surface Vehicle (USV) (대잠전 무인수상정) Unmanned Surface Vehicle for anti-submarine warfare operations, showcased at MADEX 2025 in Korea.
• Sonobuoy (소노부이) Sonobuoy product for underwater acoustic detection, featured at MADEX 2025 alongside the anti-submarine warfare USV.
• Measuring Equipment (측정장비) Underwater measurement equipment including radiated noise measurement devices and underwater sound source generators used for testing, certification, and calibration of underwater acoustic systems.

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature4 records

Partnerships

One partnership is on record.

• Meridata Finland LtdregionalChannel Partner/ Reseller/ DistributorMeridata Finland Ltd serves as SonarTech's exclusive agent in Finland and Nordic region. The agent is responsible for representing and distributing SonarTech products in the Finnish market. Contact: Veijolankatu 41, 08150, LOHJA, FINLAND, Phone: +358 19 321912.

Scale indicators3 records

Recent moves8 records

Expansion highlights7 records

Broad incumbents

• Raytheon (RTX): US defense prime with sonar, sensors, and undersea warfare capabilities as part of its broader missile and integrated air/missile defense portfolio — competes in naval sonar through Raytheon Missiles & Defense.
• L3Harris Technologies: US defense prime with substantial undersea warfare capabilities including sonobuoys, towed arrays, and sonar processing — directly overlaps with SonarTech's sonobuoy and naval sonar offerings.
• Thales: Global defense and aerospace prime with a large sonar and underwater systems portfolio (e.g., CAPTAS, Sonar 2074, BlueScan) — competes broadly in MCM/ASW sonar markets as part of a much wider defense portfolio.
• HENSOLDT: German defense electronics company offering sonar arrays, underwater sensors, and naval combat systems — broader portfolio than SonarTech but directly competitive in the naval sonar and sensor market.

Regional players

• LIG Nex1: Korean defense prime supplying sonar, torpedoes, and naval combat systems to the Republic of Korea Navy — a domestic Korean competitor and likely co-supplier on Korean MCM/ASW programs.
• Hanwha Systems: Korean defense electronics company with growing naval sensor and sonar capabilities, competing in the same domestic procurement pool as SonarTech within Korean defense programs.

Direct peers

• Ultra Electronics: UK defense electronics company with a significant sonar and undersea systems business (sonar transducers, acoustic signal processing) — comparable as a dedicated sonar-focused defense supplier.
• Sonardyne: UK-based specialist in underwater acoustic positioning, navigation, and communication systems used in AUV/ROV and naval applications — directly comparable to SonarTech's integrated sonar modules for AUV/ROV and underwater acoustic portfolio.
• Kongsberg Maritime: Norwegian maritime technology division of Kongsberg Gruppen, a leading supplier of sonar systems (e.g., HUGIN AUV, SS2030 sonar), underwater sensors, and autonomous underwater vehicles — directly overlapping with SonarTech's sonar, AUV/ROV modules, and mine-hunting portfolio.
• DSIT Solutions: Israeli defense sonar specialist offering hull-mounted sonars, dipping sonars, and underwater detection systems for naval MCM and ASW — closely comparable niche positioning to SonarTech's SEAView-1030 MCM sonar.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SonarTech