What Coltraco Ultrasonics does

Coltraco Ultrasonics is a UK-sovereign, integrated research-to-manufacturing organisation that designs and produces dual-use ultrasonic and acoustic non-destructive testing instruments for maritime, fire safety, defence, power generation, built environment, and fluid handling sectors. Founded in 1987 by EC Hunter and now led by his son Dr. Carl Stephen Patrick Hunter OBE as Chairman & CEO, the company operates from a technical headquarters at NETPark Research Institute in Sedgefield with commercial operations in Mayfair, London and administration in Somerset. Its product portfolio comprises five primary ranges — Portalevel (liquid level indicators for fire suppression cylinders), Portascanner (hatch cover and airtightness integrity testing), Portasonic (clamp-on transit-time flow meters), Portatank (industrial tank and transformer level measurement), and Portagauge (multi-echo thickness gauges) — supplemented by specialist instruments including the world-first Portagas for non-invasive inert gas monitoring, Permaflow fixed flow/heat meters, and PermaMass constant loss monitoring.

The underlying technology stack centres on transit-time ultrasonic flow measurement, resonant frequency analysis, and multi-echo thickness gauging, delivering accuracy claims of ±1.5mm liquid level, ±0.1mm thickness, and ±0.5% flow verified at an ISO 17025 laboratory. Products carry a dense compliance portfolio spanning ABS Type Approval, UL Listing, ATEX/IECEx Zone 1 and 2, IMO SOLAS FSS, NFPA 2001, ISO 14520, BS EN 15317:2013, and NATO Stock numbers, enabling procurement into regulated maritime, naval, and hazardous-area specifications. The firm layers three service lines on top of manufacturing: bespoke Product Design and Engineering across all Technology Readiness Levels, scientific research services through the wholly-owned Durham Institute of Research, Development and Invention (DIRDI) with 650+ academic fellows, and AI Testing and Evaluation via the Strategic-Potential Artificial Intelligence Group (SPAIG).

The business model is hardware-centric with a recurring aftermarket tail. Revenue streams include direct hardware sales (90% exported), distributor-led channel sales through 150+ partners in 120+ countries (89% export rate, with geographic mix of 40% Asia, 17% USA, 15% Europe, 10% Middle East), through-life calibration and after-sales services, and bespoke engineering and scientific research engagements. Pricing is custom-quotation only with no publicly disclosed tiers, supported by a Price Promise positioning. Customer base of 10k+ spans major commercial shipping operators, oil and gas majors, naval forces, fire safety OEMs, wind turbine OEMs, and utility operators, with sector brands Safeship (maritime) and Safesite (land) anchoring vertical go-to-market.

Name

Coltraco Ultrasonics

Legal name

Coltraco Limited

Website

https://coltraco.com

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

11–50 employees

Short description

Coltraco Ultrasonics is a UK-sovereign research-to-manufacturing firm founded in 1987 that designs and produces non-invasive ultrasonic instruments — liquid level, flow, thickness, and integrity testers — for maritime, fire safety, defence, power, and built-environment customers across 120+ countries.

Ownership category

akta.pro rank

Product category

Ultrasonic Testing Equipment

NAICS

Analytical Laboratory Instrument Manufacturing (334516), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Testing Laboratories and Services (54138)

SIC

Laboratory Analytical Instruments (3826), Industrial Instruments For Measurement, Display, And Control (3823), Services-Testing Laboratories (8734)

akta.pro primary industry

Metrology, Calibration & Testing Equipment (Balances, pH/DO, Standards) (HLAGAIAL)

akta.pro secondary industries

Active Leak Detection & Acoustic Surveying (Ground Mics, Correlators, Hydrophones) (EUANAKAA), Marine Systems Commissioning, Testing & Certification Support (TLAKAKAM)

Keywords

• Ultrasonic testing equipment
• Non-destructive testing instruments
• Ultrasonic flow meters
• Liquid level indicators
• Fire suppression monitoring

Headquarters

HQ city

Mayfair

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Ultrasonic Instrumentation Products: Design and manufacture of dual-use ultrasonic and acoustic testing instruments including liquid level indicators, flow meters, thickness gauges, and pressure monitors. Products sold directly and through 150+ global distributors. 90% of manufactured products are exported internationally.
2. Product Design & Engineering Services: Bespoke research, product design, and engineering solutions across all Technology Readiness Levels (TRLs), including sensor design, end-to-end product development, electromagnetic/quantum/acoustic research, systems engineering, and AI testing and evaluation services.
3. Scientific Services via DIRDI: Interdisciplinary scientific research services connecting academic expertise with real-world industrial and government challenges. Provides consultation, specialised subject matter knowledge, and research and development capabilities across physics, engineering, AI, quantum technologies, and fluid dynamics.
4. Calibration and After-Sales Support: Through-life engineering, maintenance, training, calibration certificates, and technical support services for instruments. Includes proactive reminders for compliance and recalibration scheduling.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Coltraco Ultrasonics designs and manufactures dual-use ultrasonic and acoustic testing instruments—including liquid level indicators, flow meters, thickness gauges, and integrity testers—for safety-critical applications. The company also offers complementary services such as Product Design & Engineering, Scientific Services (DIRDI), and AI Test & Evaluation.

Product overview

Coltraco Ultrasonics is a UK-based integrated research-to-manufacturing organisation offering a portfolio of dual-use ultrasonic and acoustic technologies. The product portfolio centres on five core product ranges: Portalevel (ultrasonic liquid level indicators for fire suppression cylinders including CO2, FM-200, NOVEC 1230, and Halon), Portascanner (ultrasonic integrity testing tools for hatch covers, watertight doors, and air tightness), Portasonic (ultrasonic transit-time flow meters for clamp-on flow measurement), Portatank (liquid level indicators for industrial tanks and transformers), and Portagauge (ultrasonic thickness gauges for corrosion monitoring). Supporting these are specialist products including Portagas (inert gas monitoring), Permaflow (fixed flow monitoring), PermaMass (constant loss monitoring), Portapipe (pipework level testing), Portamarine (marine CO2 monitoring), and Portasteele Calculator (cylinder weight calculation). The company also offers Services including AI Test & Evaluation, Scientific Services through DIRDI (Durham Institute of Research, Development & Invention), and Product Design & Engineering Services. Products serve dual-use applications across maritime, fire safety, defence, power generation, built environment, and clean technology sectors in over 120 countries.

Differentiator

Problem solved

Functional benefit

Brands

• Safeship: Maritime technologies for watertight integrity and fire suppression monitoring at sea
• Safesite
• DIRDI
• CUAA

Products and services

• Portalevel Liquid level indicator available in multiple variants (MAX, MAX MARINE PLUS, MAX PLUS, ADVANCED, LITE, IS, MAX NIPPON) for non-invasive measurement of liquid levels in safety-critical systems, including fire suppression cylinders.
• Portascanner Integrity testing instrument available in WATERTIGHT PLUS, WATERTIGHT PRO, and AIRTIGHT variants for non-invasive testing of compartment and door seals on vessels and enclosures.
• Portasonic Ultrasonic transit-time flow meter available in PLUS and PRO variants for non-invasive flow measurement in pipes.
• Portatank Tank monitoring system for non-invasive level and integrity assessment of storage tanks.
• Portagauge 6 Ultrasonic thickness gauge using multi-echo technology for non-invasive material thickness measurement.
• Portagas Gas detection instrument for identifying and measuring gases in safety-critical applications.
• Permaflow Permanent flow monitoring system for continuous, non-invasive flow measurement in industrial pipelines.
• PermaMass Permanent mass measurement instrument for continuous mass flow monitoring.
• Portapipe Pipe integrity testing instrument for non-invasive assessment of pipeline condition.
• Portamarine Marine-specific ultrasonic testing instrument for safety-critical applications aboard vessels.
• Portasonic Calculator Flow calculation tool for use with Portasonic flow meters to compute flow rates.
• Portasteele Calculator Steel weight and measurement calculation tool for engineering and material estimation.
• Product Design & Engineering Services Engineering services for the design, development, and engineering of ultrasonic and acoustic systems.
• Scientific Services (DIRDI) Scientific research services provided through the DIRDI institute, supporting 650+ academic fellows in ultrasonic and acoustic research.
• AI Test & Evaluation Services Artificial intelligence-based test and evaluation services for ultrasonic and acoustic systems.

Quantifiable outcome

• Inspection time reduced from 15 minutes to 30 seconds per fire suppression cylinder
• +4 more outcomes

Named customers24 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature6 records

Partnerships

Four partnerships are on record, tiered core and minor.

• VIKING EMEAcoreStrategic or Co-development PartnerColtraco partnered with Viking EMEA to create the FM-approved Portatank® Viking EMEA, a custom non-invasive liquid level indicator specifically designed for VSN 1230 and VSN 200 firefighting cylinders. This strategic partnership developed a bespoke product meeting FM approval standards for fire safety applications.
• Innovate UKcoreOthersColtraco is a member of Innovate UK's Net Zero Heat Cohort and has received R&D funding for sustainable technology development. Partially funded development of Portascanner® AIRTIGHT for building airtightness testing. Also received funding for Clean Maritime Demonstration Competition project on Advanced Contents Monitoring of Ammonia Fuel Tanks.
• Aurora EnergyminorStrategic or Co-development PartnerAurora Energy partnered with Coltraco for Portatank® trials and training sessions conducted with Unison Contracting Services for Australian power network switchgear oil level monitoring applications.
• Unison Contracting Services LimitedminorImplementation/ SI/ Consulting PartnerUnison Contracting Services, a key contractor for Aurora Energy, collaborated with Coltraco for Portatank® training and trials on common switchgear models used by Australian power networks.

Scale indicators9 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Magnaflux: Long-established NDT equipment manufacturer covering ultrasonic, magnetic particle, dye penetrant and visual inspection. Adjacent incumbent competing with Coltraco in industrial inspection markets.
• Megger: Global electrical test and measurement instrument manufacturer serving power, industrial and utilities. Relevant peer in industrial instrumentation with adjacent flow, level and condition monitoring applications.
• HBK (Hottinger Brüel & Kjær): Global leader in acoustic and vibration measurement. Relevant peer to Coltraco's CUAA subsidiary and broader ultrasonic/acoustic sensing work for defence and industrial customers.
• Dräger: Global safety and fire detection company with strong positions in gas detection and fire suppression. Overlaps with Coltraco's fire safety segment on the equipment-servicing side of gaseous suppression systems.
• Olympus (Evident Scientific): Global incumbent in industrial ultrasonic testing, borescopes and microscopy under the Evident brand. Competes across Coltraco's Portagauge, Portasonic and Portascanner categories with a much broader portfolio and global service network.

Direct peers

• Sonatest: UK-based manufacturer of ultrasonic flaw detectors, thickness gauges and phased array instruments for NDT. Direct competitor to Coltraco's Portagauge and Portasonic product lines in industrial ultrasonic testing.
• ClampOn: Norwegian provider of acoustic sand and leak monitoring sensors for subsea and topside oil and gas. Comparable to Coltraco in applying acoustic/ultrasonic technology to marine and offshore integrity monitoring.
• Elcometer: UK manufacturer of coating thickness, adhesion, surface profile and ultrasonic NDT gauges. Overlaps with Coltraco's thickness gauging and inspection instrumentation serving similar industrial inspection buyers.
• Cygnus Instruments: Specialist manufacturer of ultrasonic thickness gauges widely used in marine, offshore and structural inspection. Closely comparable to Coltraco's Portagauge range, particularly in through-coat and corrosion monitoring.

Emerging players

• Sonotec: German ultrasonic measurement specialist producing flow, level, thickness and leak detection sensors. Competes with Coltraco's Portasonic and Portalevel lines particularly in industrial and process applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/ColtracoVideos
• LinkedInlinkedin.com/company/coltraco

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries2 records

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 Coltraco Ultrasonics