Marine Data Solutions (Pty) Ltd.
- A private South African company providing maritime surveillance technology solutions.
- http://www.marinedata.co.za/

Marine Data Systems Limited
- A small company based on the south coast of England supplying navigation systems and meteorological equipment engineered specifically for the marine environment.
- http://www.marine-data.co.uk/

Miros AS
- A Norwegian company delivering wave, tide and water monitoring equipment in general and integrated systems within the fields of meteorology, oceanography and security.
- http://www.miros.no/

Sea Con Brantner and Associates, Inc.
- Manufacturer of underwater electrical and optical connectors, with company profile, technical data, and international contact details. Headquarters in California.
- http://www.seacon-usa.com/

Seafloor Systems, Inc.
- Leading providers of oceanographic and hydrographic equipment, software, and services. Provide systems integration services, turnkey remote sensing systems and solutions, as well as technical support and services.
- http://www.seafloorsystems.com/

RS Aqua UK
- Suppliers of oceangraphic instruments, including buoys, monitoring devices, radiometers and meteorological systems.
- http://www.rsaqua.co.uk/

Sea-Image Corporation
- Supplier of the WaMoS system that measures ocean wave spectra and surface current speed and direction from the output of marine X-Band radar from shore, on a moored platform, or a moving vessel.
- http://www.sea-image.com/

Syqwest, Inc.
- Design and manufacture of high resolution echo sounders and acoustic instrumentation for precision seafloor exploration.
- http://www.syqwestinc.com/

Oceanscan Limited
- One of the leading equipment and personnel rental companies servicing the world-wide hydrographic survey and ROV.
- http://www.oceanscan.net

Valeport Limited
- Manufacturer of oceanographic and hydrometric instruments including current meters, wave, water level and tide recorders, sound velocity profilers, CTDs, multiparameter instruments and accessories.
- http://www.valeport.co.uk/

Ocean Scientific International Ltd.
- Provides iapso seawater standards and samples and markets a range of instruments and oceanographic equipment including CTD, corers, nets, current meters, salinometers, fluorometers and analysers.
- http://www.oceanscientific.com/

Coda Octopus
- Geosurvey solutions provider of underwater technology for imaging and mapping the seabed including inertial attitude and positioning, sub-bottom profiling and sidescan sonar imaging instruments.
- http://www.codaoctopus.com/

GeoAcoustics Europe
- European manufacturer of seabed survey products, including sonar and swath bathymetry systems.
- http://www.geoacoustics.com/

Vector Developments Limited
- Offers high resolution Seamoon marine cameras and Seavision packaged marine CCTV systems.
- http://www.seamoon.co.uk/

Richard Brancker Research Ltd.
- An electronic engineering company providing precision oceanographic equipment for scientific research and monitoring. Products include autonomous, submersible data recorders, monitors and sensors.
- http://www.rbr-global.com/

Sub-Tech Systems Canada Ltd.
- Manufactures and sells in-house products as well as used diving equipment to the international commercial diving market.
- http://www.subtechsystems.ca/

GeoSpectrum Technologies Inc.
- Manufacturer of hydrophones and underwater sound projectors. Custom design of transducers and test equipment to meet demanding specifications.
- http://www.geospectrum.ca/

DEL NORTE Technology Ltd
- Providers of DGPS systems, echo-sounders, tide gauges and the Coastal Oceanographics Hypack software product.
- http://www.del-norte.co.uk/

Sound Metrics Corp.
- Manufacturers of Dual Frequency Identification Sonar (DIDSON), a lens-based sonar that makes almost-photographic images with sound in turbid water where optical systems are ineffective.
- http://soundmetrics.com/

Nova Ray Inc.
- Licensed manufacturer of the patented Nova Ray submersible remotely operated vehicle (ROV), the result of 7 years of research and development. Key benefits include response time, ease of use, and most importantly, the ability to tow or operate in strong c
- http://www.novaray.com/

Seabed Technology BV
- Manufacturer of marine sampling instrumentation including vibrocorers, box corers and grab samplers, tide gauges, sub-sea dataloggers and turbidity profilers. Design and manufacturing of cable assemblies and pressure housings.
- http://www.seabed.nl/

McMillan Design, Inc.
- A small, privately owned, multi-disciplinary design company located in Gig Harbor, Washington concentrating its efforts in manufacturing, improving, and marketing the Sea Catch mechanical toggle quick release and other innovative products.
- http://www.seacatch.com/

Aquatrak Corporation
- Manufacturer of liquid level determination for measuring tides, sea state, river stages, ground water, head and tail water, and tank ullage. Proven technology characterized by accuracy (±3 mm), reliability, versatility, and durability.
- http://www.aquatrak.com/

Downhole Systems Inc.
- Design and manufacture custom oceanographic and geophysical equipment including winch systems.
- http://www.downholesystems.com/

Marine Electronics Ltd.
- Manufacturers of altimeters and sonars. Based in Guernsey.
- http://www.marine-electronics.co.uk/

Inuktun Services Ltd.
- Operates SEAMOR, a remotely operated underwater video inspection vehicle.
- http://seamor.ca/index.htm

Marinspect Ltd
- Remotely Operated Vehicle (ROV) equipment, services and training for clients in the offshore, coastal, and civil engineering industries.
- http://www.marinspect.com/

TechWorks Marine Ltd.
- A marine science and technology company based in Dublin, Ireland that has developed the Techworks Marine Black Box range of data acquisition systems for marine data collection.
- http://www.techworks.ie/

Pacific Gyre Inc.
- Manufacturer of oceanographic equipment for remote environmental data collection. Specializing in drifting, Lagrangian buoys, moorings and platforms that collect physical data about the open ocean, coastal waters, and estuaries.
- http://www.pacificgyre.com/

Civil Tek, Inc.
- Designs and manufactures pressure sensor wave gages for coastal and ocean engineering using techniques and features proven over years of successful field experience.
- http://www.civiltek.com/

Tritech International Limited
- Large range of high technology subsea products including profiling and imaging sonars, bathymetric systems, subsea inspection cameras, subsea lighting, acoustic, and imaging sensors, excavation and jetting systems for the underwater ROV market.
- http://www.tritech.co.uk/

JASCO Research Ltd.
- Design and manufacture custom and semi-custom oceanographic instruments including hydrophone arrays, camera systems, attitude sensors and sediment bearing strength probes.
- http://www.jasco.com/

Pacific Crest Corporation
- Manufacturer of wireless technology for GPS and environmental monitoring applications, designs and manufactures wireless data links that are rugged, reliable, and field-proven.
- http://www.paccrst.com/

BioSonics, Inc.
- An engineering, manufacturing, and consulting firm that specializes in applying hydroacoustic technology (SONAR) to detect, monitor, and assess underwater resources and habitat conditions.
- http://www.biosonicsinc.com/

OceanWorks International Inc.
- Manufactures atmospheric diving, submarine rescue and remote tooling for subsea military, oil & gas and telecommunications markets.
- http://www.oceanworks.cc/

Sediment Services
- Manufacture fully automated cohesive strength meters for the acquisition of data relating to the critical erosion stress of sand and mud sized particles on intertidal mud flats and alike.
- http://www.sediments.co.uk/

Intermountain Environmental, Inc.
- Distributes a full line of echo sounders and bottom profiling systems for precision seafloor, deep lake, and river bottom exploration. Systems are manufactured by Ocean Data Equipment Company.
- http://www.inmtn.com/

JDR Cable Systems Limited
- Design and manufacture of subsea cables and umbilical systems for a range of users.
- http://www.jdrcables.com/

Bowtech Products Limited
- Supplier of underwater cameras, electrical, fiber optic connectors, subsea lamps, pand and tilts.
- http://www.bowtech.co.uk/

Underwater Systems Inc.
- Design and manufacturing of various products ranging from environment proof electrical and optical connectors to hydroacoustic sensors and underwater vehicles.
- http://www.underwatersystems.com/

Yokota Manufacturing Co., Ltd.
- Sea-water resistant pumps, valves, flow regulators and other devices.
- http://www.aquadevice.com/english/00index.htm

Sonardyne International Ltd.
- An international group of companies manufacturing subsea instrumentation who specialise in the use of sound for underwater navigation, positioning, data communication and control.
- http://www.sonardyne.co.uk/

Seaeye Limited
- Specialises in the design and manufacture of electric powered ROV's and electric propulsion systems.
- http://www.seaeye.com/

RESON Group
- Offers complete sonar solutions including multibeam echosounders, single-beam echosounders, data acquisition and presentation software, transducers, hydrophones, and high-power ultrasonics for hydrographic surveys.
- http://www.reson.com/

Quester Tangent
- Develops suite of digital acoustic seabed classification products and services with a broad range of applications.
- http://www.questertangent.com/

PREVCO Subsea Housings
- Manufacturer specializing in submersible pressure vessels, instrumentation housings, junction boxes, pressure relief valves and other underwater equipment.
- http://www.prevco.com/

Outland Technology Inc.
- Markets underwater video systems, lighting and remotely operated vehicles.
- http://www.outlandtech.com/

Odom Hydrographic Systems Inc.
- Manufactures and sells hydrographic survey equipment including swath and side-scan echosounders.
- http://www.odomhydrographic.com/

NightSea LLC.
- Develops and manufactures underwater fluorescent lighting systems.
- http://www.nightsea.com/

Marine Magnetics Corporation
- Specialises in the design and manufacture of oceanographic magnetic exploration equipment including marine magnetometers and gradiometers.
- http://www.marinemagnetics.com/

Kongsberg Simrad Ltd.
- Manufacture specialist underwater cameras and products for harsh environments.
- http://www.kongsbergsimrad.com/

Insite Tritech Inc.
- A leading manufacturer and supplier of advanced underwater video systems.
- http://www.insitetritech.com/

Hydrovision Limited
- design and manufacture of subsea robotics including remotely operated vehicles (ROVs), underwater propulsion and control products.
- http://www.hydrovision.co.uk/

EPC Laboratories, Inc.
- Manufactures and sells thermal graphic recorders and data acquisition systems for use in a wide variety of custom applications including side-scan sonar, sub-bottom profiling and spectrum and acoustic analysis.
- http://www.epclabs.com/

Desert Star Systems LLC
- Manufactures acoustic and GPS integrated positioning systems, underwater cameras and underwater data acquisition and telemetry systems for oceanographic applications.
- http://www.desertstar.com/

Marschall Acoustics Instruments Pty Ltd.
- Designer and supplier of geophysical instrumentation, hydrophones, towed hydrophone arrays, downhole arrays, sonars, ocean CTD profilers and other hydrographic equipment.
- http://www.hydrophones.com/default.htm

Aquatic Research Instruments
- Manufactures sampling equipment and accessories for hydrobiology, limnology, oceanography and marine biology. Products include water samplers, plankton nets, incubation chambers, plankton samplers, sediment traps, microcosms, limnocorrals, microscopy appa
- http://www.aquaticresearch.com/

Turner Designs
- Specialized in providing sensitive, reliable and easy-to-use fluorometers and luminometers for the measurement of measurement of genetic reporters, nucleic acids, fluorescent tracers, algal pigments and hydrocarbons in water.
- http://www.turnerdesigns.com/

SeaBeam Instruments
- Designs, develops, and manufactures wide swath multibeam sonar survey systems for leading research organizations around the world.
- http://www.seabeam.com/

International Light, Inc.
- Manufacturer of light measurement instrumentation including radiometers, photometers and detectors.
- http://www.intl-light.com/

CytoBuoy b.v.
- Manufactures flow cytometer systems to detect, count and analyse microscopical particles such as algae and phytoplankton. Products for bench-top in the lab and also in-situ on shipboard, submerged, or buoy platforms for autonomous monitoring.
- http://www.cytobuoy.com/

YSI Incorporated
- Designs, manufactures, and distributes sensor technology, instruments, and real-time systems for the global biosystems market.
- http://www.ysi.com/index.html

Ocean Optics, Inc.
- Manufactures miniature fibre optic spectrometers, chemical sensors, precision filters and other optical components using integrated photonics technologies.
- http://www.oceanoptics.com/

InterOcean Systems, Inc.
- Design and manufacturer of the oceanographic and environmental equipment. Product line includes current meters, wave & tide gauges, acoustic releases, winches, hydrophones, buoys, and software for InterOcean instruments.
- http://www.interoceansystems.com/

Hydro-Optics, Biology, & Instrumentation Laboratories
- HOBI Labs offers a unique line of optical instruments and sensors. Specialises in optical oceanography and hydro-optical instrumentation for the marine sciences community.
- http://www.hobilabs.com/

DeepSea Power & Light
- Manufacturer of oceanographic equipment including underwater lights, cameras, batteries, lasers and temperature sensors. Also markets pressure housing design software.
- http://www.deepsea.com/

D & A Instrument Company
- Designers and manufacturers of innovative turbidity monitors, sediment and water-quality instrumentation for the dredging industry, defense agencies and research organizations.
- http://www.d-a-instruments.com/

Biospherical Instruments Inc.
- Designs and manufactures a variety of instruments for monitoring UV radiation in ocean and fresh water environments including profiling reflectance and UV radiometers, natural fluorometers and PAR and monochromatic sensors.
- http://www.biospherical.com/

IDRONAUT s.r.l.
- Development of innovative marine instrumentation including a series of low maintenance full ocean depth fast response sensors, in-situ trace metal analyzers, benthic chambers and a data telemetry profiling buoy.
- http://www.idronaut.it/

ORCA Instrumentation
- Supplier of acoustic transmission systems, buoy location systems via satellite, data acquisition and processing devices.
- http://www.orca-inst.com/

Innova A/S
- Scandinavian supplier of underwater equipment and services for ROV, subsea intervention and oceanographic research.
- http://www.innova.no/

Sea Sciences, Inc.
- Designs and manufactures portable, field-usable instrumentation for coastal and freshwater research. The main product line is based on the Acrobat, a versatile computer driven tow body which supports a host of R & D instrumentation selected by the us
- http://www.seasciences.com/

A.G.O. Environmental Electronics Ltd.
- Oceanographic and geophysical equipment designers who manufacture portable equipment winches, towed bodies and subsea instrumentation.
- http://www.agoenvironmental.com/

Oktopus GmbH
- Developers of specialised instrumentation and marine gear for ocean research in co-operation with universities, research organisations and governmental agencies.
- http://www.oktopus-mari-tech.de/index-e.html

Ohmex Ltd
- Supplier and manufacturer of portable echo sounder, tide gauge, environmental data collection and ROV systems.
- http://www.ohmex.co.uk/

Coastal Leasing, Inc.
- Manufactures, leases and sells oceanographic, environmental and meteorological instrumentation for scientific research worldwide.
- http://www.coastal-usa.com/

ORE Offshore Division
- Specialized hydro-acoustics company in Falmouth, Massachusetts and Houston, Texas. Builds the Trackpoint II and LXT underwater acoustic tracking and navigation system, and sells and leases equipment for marine surveys and oceanographic research.
- http://www.ore.com/

Oceanor
- Offers an extensive stock of metocean instruments.
- http://www.oceanor.no/services/metocean.htm

Technicap
- Suppliers of marine sampling instrumentation including sediments traps, water samplers, buoys, chlorophyl incubators, frames and pumps.
- http://www.technicap.com/

Challenger Oceanic
- Instrument development and design of oceanographic chemical sensors and sampling systems for international research related to climate change and pollution.
- http://www.challengeroceanic.com/

Aquamatic
- Water quality measurement systems for oceanographic and environmental applications in shallow waters.
- http://www.aquamatic.dk/

Cetacean Research Technology
- Underwater and bioacoustics instumentation and consultation.
- http://www.cetaceanresearch.com/

Pro-Oceanus Systems, Inc.
- Manufacturers of Ultra-Stable dissolved oxygen, nitrogen and total dissolved gas sensors.
- http://www.pro-oceanus.com/

Precision Measurement Engineering
- Design and manufacture products for field and laboratory research that range from antennas that transmit on the ARGOS frequencies, to microstructure profilers that measure high resolution of conductivity, temperature, dissolved oxygen, chlorophyll, and PA
- http://www.pme.com/

Northwest Marine Technology, Inc.
- Benign fish tags and tagging techniques using NMT fish tags including fish tagging scientific references.
- http://www.nmt-inc.com/

NortekUSA
- Acoustic doppler current meters, current profilers and flow meters, for the ocean, rivers and open channels, including Aquadopp current meters, Vector ADVs and ADPs.
- http://www.nortekusa.com/

NORTEK AS
- Measurement solutions in all the world's waters. Suppliers of acoustic instruments for measuring water motion, software for realtime operation in the field or lab and analysis software for visualisation, presentation and reports.
- http://www.nortek-as.com/

Mooring Systems Inc.
- Designs and fabricates oceanographic surface and subsurface buoys, trawl resistant bottom mounts, provides all mooring components including wire rope and marine hardware for shallow and deep sea systems.
- http://www.mooringsystems.com/

METOCEAN Data Systems Limited
- Manufacturing and development company for state-of-the-art oceanographic and meteorological data acquisition and telemetry systems for severe environments.
- http://www.metocean.com/

McLane Research Laboratories, Inc.
- Pioneers of time-series oceanographic and environmental monitoring instrumentation since 1983. Our goal is to enable investigators to achieve their research and scientific goals by providing advanced, cost-effective instrumentation and design services.
- http://www.mclanelabs.com/

Woods Hole Instrument Systems Ltd.
- WHISL designs, manufactures and markets instruments and systems for monitoring a wide variety of marine environmental parameters.
- http://www.whgrp.com/whisl.htm

WET Labs, Inc.
- Manufactures underwater optical sensing instruments for physical, biological, geological, and chemical characterization of the marine environment.
- http://www.wetlabs.com/

Webb Research Corporation (WRC)
- Designs and manufactures scientific instruments for oceanographic research and monitoring. Founded in 1982, WRC specializes in neutrally buoyant, autonomous drifters and profilers, and moored underwater sound sources.
- http://www.webbresearch.com/

Thetis
- Measurement and equipment rental service in the field of oceanography and meteorology.
- http://www.thetis.fr/

Technocean, Inc.
- Manufacturer of oceanographic equipment, primarily Argos-based drifting buoy systems. Argos-certified PTT manufacturer.
- http://www.technocean.com/

Hugrun ehf
- Manufacturers of underwater data acquisition instruments and loggers.
- http://www.star-oddi.com/

Specialty Devices, Inc.
- Designs and builds bathymetric, oceanographic, and meteorological data acquisition systems including the BLASS Bathymetric survey system, IDS depthsounder, data buoys, towfish, and tailbuoys.
- http://www.specialtydevices.com/

Sound Ocean Systems, Inc.
- SOSI provides quality marine systems and components including marine winches, launch and recovery systems, tow fish and seafloor salvage systems.
- http://www.soundocean.com/

SonTek / YSI
- Makes water velocity measurement sensors - ADCP/ADP acoustic doppler current profilers, ADV velocimeters, DVL speed logs, Argonaut current meters, ultrasonic flow meters and other instruments.
- http://www.sontek.com/

SiS - Sensoren Instrumente Systeme GmbH
- Sensors, instruments, systems and calibration equipment for oceanography, marine sciences and environment.
- http://www.sis-germany.com/

Sippican, Inc.
- Design, development, and manufacture of oceanographic instrumentation for the scientific communities and navies of the world.
- http://www.sippican.com/

Shark Marine
- Remotely operated vehicles (ROVs), cameras and other oceanographic equipment.
- http://www.sharkmarine.com/

Sequoia Scientific, Inc.
- Building on its sponsored research, Sequoia Scientific produces optical instruments and software, specifically designed for oceanographic use.
- http://www.sequoiasci.com/

Seimac Limited
- ARGOS Platform Transmitters Terminals - World's largest manufacturer for OEM application development.
- http://www.seimac.com/

Sea-Bird Electronics, Inc.
- Largest manufacturer of marine instruments for measurement of salinity, temperature, pressure, dissolved oxygen, and related oceanographic variables. Major products include Conductivity/Temperature/Depth (CTD) profilers, multibottle in-situ water samplers
- http://www.seabird.com/

RD Instruments
- World leader in water current measurement products (ADCP) and software which is used in a variety of oceanographic applications, from deep ocean navigation, oil platform station-keeping to coastal monitoring, ports and harbor safety to lake and river disc
- http://www.rdinstruments.com/

Open Seas Instrumentation, Inc.
- Manufacture oceanographic equipment (nets and corers) for the international scientific community.
- http://www.openseas.com/

OceanTools Ltd
- Products for the professional offshore ROV (Remotely Operated Vehicle) and survey markets including true north seeking fibre optic gyro compass systems.
- http://www.oceantools.ltd.uk/

Oceanographic Company of Norway ASA (OCEANOR )
- Specialising in delivering integrated real-time environmental monitoring and information systems for oceans, coastal areas, rivers, lakes, groundwater and soil.
- http://www.oceanor.no/

Oceaneering International, Inc.
- An advanced applied technology company that provides engineered services and hardware to Customers who operate in marine, space, and other harsh environments.
- http://www.oceaneering.com/

Ocean Instruments, Inc.
- Oceanographic products including multicorers, box corers and bongo nets.
- http://www.oceaninstruments.com/

Ocean Innovations
- Represents some of the leading manufacturers of underwater equipment and marine technology.
- http://www.o-vations.com/

Ocean Sensors, Inc.
- Specializes in the development of innovative ocean measurement instrumentation and systems. Developers of lightweight Conductivity/Temperature/Depth (CTD) instruments for use in ocean profiling, moored and shipboard data logging applications.
- http://www.oceansensors.com/

Marimatech
- Manufacturers of marine surveying and monitoring instrumentation.
- http://www.marimatech.com/

The MacArtney Group
- Specializes in the engineering and supply of underwater oceanographic equipment.
- http://www.macartney.com/

Klein Associates Inc.
- Specialist makers of side scan sonar imaging systems.
- http://www.kleinsonar.com/

KC Denmark
- Supplies all types of field / laboratory research equipment for limnology, oceanography and hydrobiology.
- http://www.kc-denmark.dk/

General Oceanics, Inc.
- The world's leading supplier of oceanographic, coastal, freshwater and air sampling instruments technology. In business since 1966.
- http://www.generaloceanics.com/

Geological & Marine Instrumentation (GMI)
- Developers and producers of solutions and products within the fields of process control, measurement techniques, and in particular marine and environmental and oceanographic monitoring.
- http://www.gmi.dk/

Flotation Technologies
- A world leader in the design and manufacture of subsurface buoyancy and mooring products since 1979.
- http://www.flotec.com/

Falmouth Scientific, Inc.
- An international leader in the development and manufacture of high quality precision oceanographic instrumentation.
- http://www.falmouth.com/

Marine Sonic Technology Ltd
- Produces a side scan sonar system which sets the standard for high quality performance and offers an ability to locate objects underwater with near photographic quality.
- http://www.marinesonic.com/

EdgeTech
- Develops, manufactures, and markets sensing devices for marine applications including sonar systems for underwater, seafloor and object imaging and sub-bottom profiling, and communication and control products to locate, position communicate and activate/c
- http://www.edgetech.com/

Duncan and Associates
- Designers, manufacturers and suppliers of limnological, hydrobiological and oceanographic sampling and monitoring apparatus, all manufactured to an assured standard, tested and proven in the field.
- http://www.duncanandassociates.co.uk/

CLS: Collecte Localisation Satellites
- Platform location and scientific data collection by Argos, satellite orbit determination and platform location by Doris, space oceanography data processing for TOPEX/POSEIDON and ERS.
- http://www.cls.fr/welcome_en.html

Deep Ocean Engineering
- Provides service to and manufactures remotely operated vehicles (ROVs), robotic and manned equipment for harsh environments.
- http://www.deepocean.com/

Chelsea Instruments Ltd
- Market a range of high precision oceanographic instrumentation which is in use in all oceans of the world.
- http://www.chelsea.co.uk/

Brooke Ocean Technology Limited
- Provides systems engineering, R&D services and hardware to the marine science community. Their speciality is the development of innovative equipment and systems to operate in harsh marine environments.
- http://www.brooke-ocean.com/index.html

Brightwaters Instrument Corporation
- Manufactures GPS/DGPS and Argos drifting buoys, environmental telemetry systems, hydrographic instruments, equipment relocation products. Offers custom and semicustom work and OEM design services.
- http://www.brightwaters.com/

Benthos, Inc.
- Specializes in remote sensing technology for harsh environments. Founded in 1962 as a supplier of oceanographic products for the nearby Woods Hole Oceanographic Institution, the company designs and manufactures oceanographic and robotic systems for resear
- http://www.benthos.com/

Axys Environmental Systems
- Manufacture environmental data acquisition systems with a focus on moored buoys for routine weather and sea state monitoring. Also build specialized buoys for research and are continually developing new sensors, power supplies and other buoy components.
- http://www.axystechnologies.com/

Ashtead Technology Ltd
- Oceanographic, hydrographic, survey equipment and ROV sensor rental.
- http://www.ashtead-technology.com/

Aquatec Electronics Ltd.
- Provide quality data logging and acquisition tools, instrumentation, acoustic telemetry systems and software to the marine, fisheries, oil and offshore industries.
- http://www.aquatec.demon.co.uk/

Applied Microsystems Ltd.
- Manufacturer of oceanographic, hydrographic and environmental water quality monitoring instrumentation.
- http://www.appliedmicrosystems.com/

Aanderaa Instruments AS
- Data collecting instruments for land, sea and air.
- http://www.aanderaa.no/