Acoustic Technology Group

What Acoustic Technology Group does

Acoustic Technology Group, Inc. (ATG) is a privately held industrial distributor incorporated in Texas in 1991 and operating as a subsidiary of Modus Acoustics LLC from a Houston address. The company distributes Acoustic Emission (AE) non-destructive testing products and turn-key systems across North and South America, holding exclusive North American distribution rights for Germany's Vallen Systeme GmbH and supplemental agreements with KRN Services, AV Technology, and Score Atlanta. Its core technology portfolio centers on the AMSY-6 fully digital multi-channel AE measurement system (2 to 248 channels), the compact spotWave single-channel and linWave dual-channel systems, the Vallen AE-Suite software platform (VisualAE, VisualTR, VisualClass), and an extensive sensor catalog including ATEX Zone 0 intrinsically safe ISAS3 series and Vallen VS piezoelectric sensors. The company also offers preamplifiers, calibration tools (Hsu-Nielsen sources, Vallen Sensor Test, SysVeri), cables, couplants, and accessories configured into complete monitoring solutions.

ATG serves industrial asset owners, non-destructive testing service companies, structural health monitoring operators, and manufacturers, with documented use cases spanning pressure vessel integrity, tank floor inspection, bridge tendon wire break detection, pipeline leak detection, rotating equipment monitoring, partial discharge detection, and process quality control. Customers apply ATG's systems for active defect detection (cracks from fatigue, corrosion, operation outside design envelope) and for permanent 24/7 monitoring of critical infrastructure.

The business model combines one-time hardware sales (products distributed from Vallen, KRN, AVT, and Score Atlanta) with turn-key system integration, subcontract consulting and training services, and permanent structural health monitoring engagements. Sales are direct and consultative, driven by phone/email inquiry, industry event presence (TRB, AEWG, Fuel Ethanol Workshop, NDE in Nuclear), and a network of contract engineering specialists. Pricing is not publicly disclosed, and ATG carries no disclosed revenue, funding, or headcount data.

Name

Acoustic Technology Group

Legal name

Acoustic Technology Group, Inc.

Website

https://atgndt.com

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

1–10 employees

Short description

Acoustic Technology Group distributes Acoustic Emission non-destructive testing systems, sensors, software, and consulting services across North and South America, serving industrial asset owners, NDT service companies, and structural health monitoring operators through exclusive agency agreements with Vallen Systeme GmbH.

Ownership category

akta.pro rank

Product category

Non-Destructive Testing (NDT) Equipment and Acoustic Emission Instrumentation

NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Measuring & Controlling Devices, Nec (3829)

akta.pro primary industry

Noise & Vibration Monitoring (Environmental/Community/Construction) (EUAHACAG)

Keywords

• Acoustic emission testing
• Non-destructive testing equipment
• Structural health monitoring
• Industrial sensors systems
• NDT inspection services

Headquarters

HQ city

Houston

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Product Distribution: ATG distributes Acoustic Emission products from Vallen Systeme GmbH (exclusive North America), KRN Services, AV Technology, and Score Atlanta. Products include sensors, preamplifiers, systems, accessories, and calibration equipment. Revenue generated from one-time product sales.
2. System Integration and Turn-key Solutions: ATG provides turn-key AE systems combining multiple products (sensors, preamplifiers, data acquisition hardware, software) configured for specific customer applications like structural health monitoring, vessel inspection, or bridge monitoring.
3. Consulting Services: ATG provides consulting services on a subcontract basis including AE training, consulting, AE Field Testing Services, AE Theory and Applications, and AE Instrumentation Operations. ATG has a network of contract engineering staff with specialized expertise.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Acoustic Technology Group distributes Acoustic Emission (AE) hardware systems, sensors, preamplifiers, calibration equipment, and the Vallen AE-Suite software platform in North and South America as the exclusive North America distribution agency for Vallen Systeme GmbH. The company supplements its product distribution with turn-key system integration, AE consulting and training services, field testing, and 24/7 Structural Health Monitoring (SHM) solutions for bridges, vessels, and piping.

Product overview

Acoustic Technology Group (ATG) is a leading distributor of Acoustic Emission (AE) products in North and South America, founded in 1991 and operating as a subsidiary of Modus Acoustics LLC. The company distributes turn-key AE systems and components from Vallen Systeme GmbH (their exclusive North America distribution agency), along with products from KRN Services and AV Technology. The product portfolio centers on the AMSY-6 multi-channel AE measurement system (supporting 2-248 channels) for industrial non-destructive testing applications. ATG also offers portable solutions including the spotWave (single-channel) and linWave (dual-channel) systems, complemented by the Vallen AE-Suite software platform comprising VisualAE, VisualTR, and VisualClass for data acquisition and analysis. The extensive sensor lineup includes Vallen VS Series sensors across various frequency ranges, ISAS3 intrinsically safe sensors (ATEX Zone 0 certified), and KRN Services sensors including underwater variants. Supporting infrastructure includes preamplifiers (AEP5, AEP4H-ISTB, AEP3N), calibration equipment (Hsu Nielsen sources, Vallen Sensor Test, SysVeri), and accessories (cables, couplants, transport cases). ATG provides consulting, training, and Structural Health Monitoring (SHM) services for bridge, vessel, and piping applications.

Differentiator

Problem solved

Functional benefit

Products and services

• AMSY-6 Multi-Channel AE System Fully digital multi-channel Acoustic Emission measurement system supporting 2 to 248 channels, with each channel combining an analogue measurement section and a digital signal processing unit. Front-end software runs on an external PC, providing Hit, Status, Parametric, and Waveform data acquisition. Sold to industrial and infrastructure customers performing large-scale AE inspections and structural health monitoring.
• spotWave Single-Channel AE System Robust, portable single-channel AE measurement unit with USB interface, operated via laptop, tablet, smartphone, or IoT device running Windows. Fully compliant with EN13477-1 and features an integrated coupling check transmitter (CCT) plus IP67 ingress protection. Targeted at field NDT inspectors and service companies performing portable AE measurements.
• linWave Dual-Channel AE System Dual-channel AE measurement unit in compact IP67 housing, designed for embedded or additive manufacturing applications. Compliant with EN13477-1, connects via Ethernet with Power over Ethernet (PoE) power supply and runs on a Linux operating system. Targeted at manufacturing process monitoring customers.
• Vallen AE-Suite Software Complete software ecosystem for Acoustic Emission data acquisition and analysis, bundling VisualAE for real-time and post-process data analysis, VisualTR for waveform investigation and frequency-domain feature extraction, and VisualClass for statistical pattern recognition. Supports seven dialog languages and integrates with Vallen AE systems. Sold as the standard software platform for ATG's AE instrumentation customers.
• Vallen AE Sensors (VS Series) Over 30 piezoelectric AE sensor models covering low-frequency (20-100 kHz), standard-frequency (100-400 kHz), high-frequency (>400 kHz), broadband, watertight, and high/low-temperature variants. Sold to NDT service companies and industrial asset owners for diverse AE inspection applications.
• ISAS3 Series Intrinsically Safe AE Sensors Piezoelectric AE sensors with integrated preamplifier based on intrinsically safe electronic design, certified for ATEX Zone 0 installation. Available in six bandwidth variants from 25 kHz to 960 kHz with IP68 rating and 20 dB gain. Targeted at customers needing AE monitoring in explosion-hazardous areas such as oil and gas, chemical, and fuel ethanol facilities.
• SISO3 Signal Isolator Associated device to ISAS3 that electrically isolates the intrinsically safe circuit from non-intrinsically safe circuits. Installable in ATEX Zone 2 environments, SISO3 limits current, voltage, power, and pulse energy to safe levels. Sold alongside intrinsically safe AE sensor systems for hazardous-area deployments.
• Vallen AEP5 and AEP5H Preamplifiers General purpose wide-band preamplifiers supporting single-ended sensors with selectable gain of 34 dB or 40 dB. AEP5 covers 2.5 kHz to 2.4 MHz; AEP5H covers 20 kHz to 2.4 MHz. Sold as part of Vallen AE measurement system configurations.
• AEP4H-ISTB Preamplifier Multipurpose preamplifier for the 3-2000 kHz frequency range, suitable for most applications. Features integrated sensor housing with strong magnets and is commonly used in tank floor inspection. Sold to NDT service companies performing tank and vessel inspections.
• AEP3N Preamplifier Preamplifier with software-selectable amplification (34 to 49 dB) when used with AMSY-5 or AMSY-6 systems. Features exchangeable frequency filter modules and dual inputs (single-ended BNC and differential BNO). Sold as a configurable preamplifier for Vallen multi-channel AE systems.
• ASCO-DAQ2 Single-Channel AE System Easy-to-operate, versatile single-channel AE system for process monitoring, measuring burst and continuous AE. Data acquisition module housed in a rugged box with USB 2.x interface and bundled with AscoDaq software. Sold to customers requiring simple, portable process monitoring.
• ASCO-P Signal Conditioner Low-cost analog AE-signal conditioner for real-time defect growth monitoring. Converts sensor signals into peak (APK) and average (ASL) signals with digital threshold crossing output. Sold to industrial customers needing affordable real-time defect monitoring.
• Hsu Nielsen Source Pencils Calibration devices that simulate acoustic emission events through fracture of brittle graphite leads, available in 0.3mm and 0.5mm diameters. Used to verify sensor contact and source location accuracy. Sold to NDT inspectors and AE testing technicians.
• Vallen Sensor Test (VST) Software Software tool for fast and easy sensor sensitivity testing that guarantees AE data quality by detecting aging or defective sensors. Sold alongside Vallen AE sensor and system installations.
• Vallen SysVeri Calibration Software Software package that guides operators through an automated verification process for AE systems, making system verification fast and straightforward. Sold to NDT service companies and asset owners needing documented AE system qualification.
• Structural Health Monitoring (SHM) Services Permanent monitoring solutions for bridge tendon wire breaks, vessels, and piping systems, providing autonomous 24/7 monitoring with real-time alerts for critical structural events. Sold as a service to bridge owners, infrastructure operators, and industrial asset owners requiring continuous integrity assurance.
• AE Consulting, Training, and Field Testing Services Subcontract-based consulting services covering Acoustic Emission training, AE Theory and Applications, AE Field Testing Services, and AE Instrumentation Operations, delivered through a network of contract engineering staff. ASNT-TC-1A / NAS 410 certification training is referred outside of ATG. Sold to industrial buyers and NDT service companies needing specialized AE expertise.

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Vallen Systeme GmbHcoreChannel Partner/ Reseller/ DistributorATG is the exclusive North America distribution agency for Vallen Systeme GmbH. Vallen Systeme was founded in 1980 and specializes in the development and manufacturing of instrumentation for Acoustic Emission (AE). The company is dedicated to the support, reliability, and performance of their products. ATG distributes Vallen's complete product line including AMSY-6 systems, sensors, preamplifiers, intrinsically safe equipment, calibration tools, and AE-Suite software.
• KRN ServicescoreChannel Partner/ Reseller/ DistributorKRN Services, Inc. was founded in 1991 and designs and manufactures Acoustic Emission (AE) sensors used by test companies, manufacturing firms, electrical utility, DOT, and academia. ATG distributes KRN products including resonant sensors, broadband sensors, specialty sensors, underwater sensors, and preamplifiers.
• AV TechnologyminorChannel Partner/ Reseller/ DistributorAV Technology (AVT) has been producing high quality AE Sensors and Instrumentation for over 25 years. ATG distributes AVT's IS series of high performance ATEX certified acoustic emission transducers and related equipment including IA2100 preamplifier and IF410 interface unit.
• Score AtlantaminorChannel Partner/ Reseller/ DistributorScore Atlanta provides portable systems used to detect leakage through process plant valves and piping and a complete range of acoustic emissions sensors and data acquisition hardware. ATG distributes Score Atlanta products including intrinsically safe AE transducers.
• API Solutions LLCminorGTM or Marketing PartnerATG participates in joint marketing with API Solutions LLC at the Fuel Ethanol Workshop & Expo (June 2025, Omaha, NE).

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• MISTRAS Group: MISTRAS Group is a leading global provider of integrated non-destructive testing (NDT) services and products, with significant acoustic emission capabilities through its Physical Acoustics subsidiary. Directly comparable to ATG as an AE/inspection services provider, but operates at much larger scale and with a full-stack NDT offering.
• Kistler Group: Kistler is a global leader in piezoelectric measurement technology, including sensors and systems used for acoustic emission and dynamic pressure measurement. Comparable to ATG on the sensor/instrumentation side for industrial monitoring customers, with broader mechatronics and automotive exposure.
• HBK (Brüel & Kjær): HBK (formerly Brüel & Kjær) is a major global supplier of sound and vibration measurement instrumentation. Comparable to ATG in industrial acoustic and vibration monitoring applications, with much broader product portfolio covering structural dynamics, NVH, and acoustic test systems.
• Evident (formerly Olympus Industrial): Evident is a major NDT equipment manufacturer offering ultrasonic, eddy current, radiographic, and visual inspection instruments. Comparable to ATG as a complementary NDT provider to industrial asset owners, with much larger scale and broader modality coverage.
• Sonatest: Sonatest manufactures ultrasonic flaw detectors and NDT equipment serving aerospace, oil & gas, and industrial inspection markets. Comparable to ATG as a complementary NDT instrumentation provider targeting similar asset integrity and inspection customers.

Direct peers

• Physical Acoustics (MISTRAS subsidiary): Physical Acoustics is a major manufacturer of acoustic emission sensors, instruments, and software, now operating as a subsidiary of MISTRAS Group. Direct competitor to Vallen Systeme (ATG's principal supplier) and the most prominent AE equipment manufacturer globally, competing head-to-head with products ATG distributes.
• T.D. Williamson: T.D. Williamson provides pipeline integrity and inspection services and equipment, including acoustic-based leak detection technologies. Comparable to ATG in industrial acoustic monitoring for pipelines and pressure vessels, with deeper focus on the oil & gas pipeline operator segment.
• KRN Services: KRN Services designs and manufactures acoustic emission sensors (resonant, broadband, specialty, underwater) and is one of ATG's principal distribution partners. Also a direct peer since KRN sells AE sensors to the same industrial NDT customer base ATG serves, including test companies, electric utilities, DOTs, and academia.
• Vallen Systeme GmbH: Vallen Systeme is the German AE instrumentation manufacturer founded in 1980 whose products ATG exclusively distributes in North America. Also a direct peer since Vallen sells its own products in Europe and other regions, and the underlying technology portfolio (AMSY-6, AE-Suite, sensors) is identical to what ATG offers in its territory.
• Score Atlanta: Score Atlanta provides portable acoustic emission systems for valve and piping leak detection, plus intrinsically safe AE transducers. Both a distribution partner for ATG and a direct peer in leak-detection and process-plant AE applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/acoustic-technology-group-inc.

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Acoustic Technology Group