Header band, 2800 x 400 (7:1), WebP or JPG, under 160 KB. NOT A NEW PHOTOGRAPH: crop this band out of the middle of the same camera original as this discipline's portrait master, from the full-size file rather than the delivered 1200 x 1800 — the uploader refuses anything narrower than 1400 px. Flat exposure, nothing above 60% luminance, no lens flare, and the subject sitting in the middle third so the type above it has clean ground. NO LEGIBLE VESSEL NAME, IMO NUMBER OR CLIENT BRANDING.

Radio & GMDSS

Radio and GMDSS work divides in two. The periodical radio survey is a flag-State function, under an authority traceable to an Administration. Behind it sits the testing, service and repair it reads: VHF and MF/HF with DSC, satellite terminals, NAVTEX, EPIRB, SART, reserve power and antennas. Send the flag, sea area, certificate dates and the makes and serial numbers off the Record of Equipment; documentation for the quoted scope comes in writing with the price.

What we do

Radio survey attendance and support

Attendance and preparation for the periodical radio survey at the certificate anniversary
Pre-survey function test of every item on the Record of Equipment — Form R, P or C
Sea area A1 to A4 verification against the equipment actually fitted
Radio log, ship station licence, call sign and MMSI documentation review
Review of operator certificates and the ship's radio watchkeeping arrangements
Port State Control radio deficiency rectification and close-out evidence

Terrestrial GMDSS equipment

VHF radiotelephone and DSC controller — function test, service and repair
MF/HF transceiver and DSC — tuning, output power and receiver sensitivity
DSC test call to a coast station where the sea area allows
NAVTEX receiver — reception check, printer or display, and message log
Distress alerting chain verified, including MMSI programming against the licence
Ship Security Alert System — test transmission and alert routing
GMDSS console fault-finding, diagnosis and equipment replacement

Satellite communications

Inmarsat FleetBroadband and Fleet Xpress terminals — service, alignment and fault-finding
Inmarsat-C — distress alerting, EGC and SafetyNET reception verification
Iridium GMDSS terminals — distress alerting, MSI reception and identity verified against the Record of Equipment
Iridium Certus and legacy Iridium terminals — installation, commissioning and fault-finding
LRIT terminal configuration and support for the flag-appointed ASP's conformance test after a change of flag or terminal — under Bridge & Navigation, same attendance
Above-deck unit, radome and antenna cable loss measurement
Terminal identity, MMSI and registration data checked against the ship station licence and the Record of Equipment

Beacons and survival-craft radio

406 MHz EPIRB annual test — frequency, power, coding and self-test
EPIRB coded identity read back and checked against the beacon registration
Beacon registration updated with the flag registry after a change of flag, name or owner
EPIRB battery and float-free release unit replacement at their marked dates
Five-yearly EPIRB shore-based maintenance coordinated with an approved facility
SART and AIS-SART — function test, battery renewal and stowage check
Survival-craft two-way VHF radiotelephone apparatus — test and battery renewal

Power, antennas and earthing

Reserve source of energy — battery capacity test with the ship not at sea
Charger, changeover and alarm verification for the radio supply
Emergency source of power feed to the radio installation verified
Antenna, insulator and feeder survey; VSWR and insulation resistance measured
Earthing and bonding continuity of the radio installation checked and recorded
Antenna, feeder and connector renewal, with parts supplied on the same attendance

Regulatory basis

The instruments that govern this work, cited as a superintendent would write them. What each one requires of the shipowner — not what we sell.

SOLAS Ch. IInternational Convention for the Safety of Life at Sea, 1974, as amended — Chapter I, General provisions

Cargo ships of 300 gross tonnage and upwards — the ships SOLAS chapter IV applies to (IV/1.1) — carry a Cargo Ship Safety Radio Certificate, issued for a period specified by the Administration and not exceeding five years (SOLAS I/14(a)). Reg. I/9 sets the radio installation's survey cycle: initial, periodical at each anniversary date, renewal, and additional surveys after important repair. On a passenger ship there is no separate radio certificate: the radio installation is surveyed within the Passenger Ship Safety Certificate, which SOLAS I/14 limits to twelve months, and its record of equipment is Form P.

SOLAS Ch. IVSOLAS Chapter IV — Radiocommunications

Chapter IV was replaced in full by IMO Res. MSC.496(105), in force 1 January 2024. The GMDSS installation must match the sea areas the ship is certified for, A1 to A4 — and A3 is now defined by the coverage of the Recognized Mobile Satellite Service supported by the ship earth station actually carried, so a change of satellite terminal can change it. References to Inmarsat are replaced by RMSS (Inmarsat and Iridium are both recognised), NBDP is no longer a GMDSS function, and a VHF EPIRB is no longer accepted in sea area A1. Availability is maintained by duplication of equipment, shore-based maintenance or at-sea electronic maintenance capability as the Administration approves: in sea areas A1 or A2 any one of them, or a combination, satisfies IV/15.6; in sea areas A3 or A4 a combination of at least two is required (IV/15.7). EPIRBs are tested annually within the certificate window and maintained at an approved shore-based facility at intervals not exceeding five years (IV/15.9). Survival-craft two-way VHF and radar SART/AIS-SART carriage now sits in this chapter, at IV/7.2 and IV/7.3.

SOLAS IV/7.2–7.3SOLAS Chapter IV, Reg. 7 — Radio equipment: General

Since 1 January 2024 survival-craft radio equipment is a Chapter IV carriage requirement, not a Chapter III one. Cargo ships of 300 GT and upwards but under 500 GT carry one radar SART or AIS-SART and two two-way VHF radiotelephone apparatuses (IV/7.2); passenger ships and cargo ships of 500 GT and upwards carry one radar SART or AIS-SART on each side and three two-way VHF radiotelephone apparatuses (IV/7.3). IMO Res. MSC.496(105) moved these from SOLAS III/6, whose paragraphs 1 and 2 are now reserved, and they are recorded at items 5 and 6 of the Record of Equipment for Cargo Ship Safety Radio (Form R) — so they are read at the radio survey, on the radio record.

ITU Radio RegulationsITU Radio Regulations

A ship station is licensed by its flag Administration and operated under the identities that Administration assigns — call sign, MMSI, and the identities programmed into DSC equipment and beacons. Operators hold certificates issued under the Regulations.

MED 2014/90/EUMarine Equipment Directive 2014/90/EU

Where an item of marine equipment on the Directive's equipment list is placed on board an EU-flagged ship, it must carry the wheelmark conformity marking. Items outside that list are not wheelmarked and do not need to be. Parts supplied during an attendance are quoted against whichever applies.

Intervals

What is due, how often, and which instrument sets the period. Where an interval comes from the manufacturer or from class rather than from an IMO instrument, the table says so.

Survey and service intervals for Radio & GMDSS
Item	Interval	Set by	Note
Periodical GMDSS radio survey	Annual	SOLAS I/9 — periodical survey of the radio installation	Cargo ships: 3 months either side of the Safety Radio Certificate anniversary. Passenger ships: SOLAS I/7, and that certificate is annual
Renewal radio survey and certificate	5-yearly	SOLAS I/9 renewal survey; certificate validity SOLAS I/14	Interval set by the Administration, not exceeding five years
Passenger ship radio survey and certificate	Annual	SOLAS I/7 survey of passenger ships; SOLAS I/14 — Passenger Ship Safety Certificate validity not exceeding 12 months	The radio installation is surveyed within the Passenger Ship Safety Certificate, not a separate radio certificate; the record of equipment is Form P
Additional survey after repair or change	Event-driven	SOLAS I/9 — additional survey	After important repair or renewal, or a change to the installation
EPIRB annual test	Annually, inside the certificate window	SOLAS IV/15.9.1	Cargo ships: within 3 months before the expiry date, or within 3 months before or after the anniversary date, of the Cargo Ship Safety Radio Certificate. Passenger ships: within 3 months before the expiry date of the Passenger Ship Safety Certificate. Conducted on board the ship or at an approved testing station.
EPIRB shore-based maintenance	5-yearly	SOLAS IV/15.9.2 — maintenance at intervals not exceeding five years	At an approved shore-based maintenance facility
EPIRB battery and float-free release unit	Per manufacturer	Manufacturer's marked expiry or replacement date — not set by an IMO instrument	The marked date governs; the battery is also renewed after any activation of the beacon
Reserve source of energy — battery capacity test	≤12 months	SOLAS IV/13.6.2 — reserve source of energy, capacity check	Checked by an appropriate method with the ship not at sea
Radar SART, AIS-SART and survival-craft two-way VHF	Annual	Carriage: SOLAS IV/7.2–7.3. Survey: SOLAS I/9 — periodical survey of the radio installation, including that used in life-saving appliances	Recorded at items 5 and 6 of Form R since 1 January 2024, so this falls in the radio survey window, not the safety equipment survey window. Batteries and primary cells renewed at the manufacturer's marked expiry — an interval no IMO instrument sets.
Antenna, feeder and earthing survey	Annual	SOLAS I/9 — the periodical survey inspects the condition of the installation; the measurements in the note are our own test record, not a SOLAS-prescribed test	Insulation resistance, feeder continuity and earth bonding measured and recorded as evidence for the survey
Onboard GMDSS test routine — daily, weekly, monthly	Daily / weekly / monthly	SOLAS Ch. IV — maintenance and availability; the routine and its records are set by the flag Administration's GMDSS radio log	Crew task, not ours: DSC self-test daily, DSC test call weekly, EPIRB, SART, two-way VHF and reserve battery checked monthly. It is the first page a Port State Control officer turns to.
Sea area verification, A1 to A4	Event-driven	SOLAS IV/8–11 — equipment carried follows the certified sea area	A change of trading area changes the installation the certificate records. Since 1 January 2024 so does a change of satellite terminal: sea area A3 is defined by the coverage of the RMSS supported by the ship earth station carried, and the certificate names the service in use.
Availability of radio facilities, sea areas A3 or A4	Continuous	SOLAS IV/15.7	At least two of: duplication of equipment, shore-based maintenance, at-sea electronic maintenance capability — as approved by the Administration. Shore-based maintenance is one of the three options, not a requirement. The methods in use are declared on the Record of Equipment, in its own block on the form.
Ship station licence, call sign and MMSI	Event-driven	Flag Administration licence issued under the ITU Radio Regulations	Change of flag, name or ownership; MMSI is assigned with the flag. Where the Administration issues a time-limited ship station licence, its own expiry date governs in addition

What you receive

Radio survey report and certificate endorsement — where the attendance is made under an authorisation covering that flag and that scope, issued under that authority and named in the quotation before the attendance, not after
Service and test report per unit — make, model, serial number, as found and as left, and the test instruments used, each listed by serial number and calibration due date
406 MHz EPIRB annual test record, with the coded identity read back and verified
Reserve-source battery capacity test record and the antenna, feeder and earthing measurement sheet — measured results and the methods used
Defect list, with each part identified by part number and priced for the same attendance, and a photographic record of the installation as found and as left
Port State Control close-out pack — the deficiency as raised with its code, what was done, and the measured result offered against it, with a signed statement of rectification addressed to the inspecting authority; the decision to clear the deficiency rests with that authority
Updated GMDSS equipment inventory referenced to the Record of Equipment — Form R on a cargo ship, Form P on a passenger ship, Form C where the ship holds a combined Cargo Ship Safety Certificate — with the attending engineer's entries in the GMDSS radio log, signed and dated
Our documentation for the quoted scope, supplied in writing with the quotation — the granting entity, the scope and the reference where an authorisation covers the work, and a plain statement where none does; every report and record above that we issue reaching you as a signed PDF within five working days of the team leaving the vessel, and within 24 hours where the vessel sails before then or a certificate expires before then, provided you tell us at the order that the date is tight. A failed unit is written up on that same clock; the test record that clears it follows the re-test. Copies and reissues come from docs@shipcertify.com.

Where

Attendance is planned from the nearest of 6 service bases to any of the 299 ports in the published index, around the clock. If your port is not listed, ask — the index is what we publish, not the limit of where we mobilise.

Open the port index

Questions we are actually asked

Are you authorised to carry out the radio survey for my flag?

The GMDSS radio survey is a flag-State function. It is carried out under an authority granted per flag — by an Administration, or by a Recognised Organisation acting for one. We do not publish the scope of our own authorisations on a marketing page, and we do not ask you to take a claim on trust. Send the flag and the scope: the quotation states in writing what is granted for that flag and what is not — the granting entity, the scope and the reference where an authorisation covers the work — so you check it yourself on that authority's own public register. Where nothing covers your flag for the survey, the quotation says so plainly and prices the testing, service and repair instead.

Will class or Port State Control accept your certificate?

Check it before you book. Where the work is done under an authorisation, the quotation names it, who granted it, its reference and the public register it appears on — so you verify it yourself rather than take our word. Where no authorisation covers your flag for the survey, the quotation says so plainly and prices the testing, service and repair instead. That is contracted work, not a statutory act: the report stands on the measured results, the test instruments named by serial number and calibration due date, and the as-found/as-left record. What weight your flag, class or the inspecting authority gives it is their decision, and we do not claim it in advance.

The vessel is alongside for 18 hours. Can the radio scope be done in that?

Two things decide it. The reserve-source battery capacity test must run with the ship not at sea, so it is booked into the stay, not squeezed at the end — send the alongside window and it is planned around. The other is parts: a failed MF/HF or a beacon past its battery date needs the replacement on board, not on order. Send makes, models and serial numbers with the ETA.

What happens if something fails the test?

It is written up as found, with the measurement that failed it. Where the fix is a part we can supply, the part and the labour are quoted on the spot and fitted in the same attendance. Where it is not, you get the defect in writing, the part number, and what it means for the certificate — before the vessel sails, not after.

Is a radio survey the same thing as radio maintenance?

No, and mixing them costs a day. The survey is a statutory act under a flag authority. Maintenance, testing and repair are contracted work — but not all of it is unrestricted: the EPIRB annual test must be done on board or at an approved testing station, and its five-yearly maintenance at an approved shore-based facility (SOLAS IV/15.9). Availability is a third matter, approved by the Administration (SOLAS IV/15.6, 15.7).

The radio certificate anniversary falls when we are mid-ocean. When must the survey happen?

SOLAS I/9 gives a periodical survey window of three months either side of the anniversary date — six months wide. That window is usually what makes one attendance possible: the radio scope, the safety equipment items and the VDR annual performance test fall in overlapping windows and can be planned into one port call rather than three. Send the certificate dates with the ETA. Where an item needs an authorisation or an approved facility, the quotation says who it is done under before the attendance, not after.

Makes and types we service

The equipment actually found on ships, indexed by category, with the corporate history a superintendent needs — a plate still says Norsafe, Schat-Harding, Germanischer Lloyd. This is what the work covers. It is not a list of approvals: maker authorisation is granted per make and per type, and ours is supplied in writing with a quotation.

Search the makes160 of 160 makes

GMDSS consoles and radio installations

IcomJapan

Alphatron MarineJRC (Nisshinbo Holdings) · Netherlands

Sperry MarineNorthrop Grumman · United Kingdom

FurunoJapan
JRCNisshinbo Holdings · Japan
Cobham SatcomSolix Group · DenmarkSAILOR GMDSS consoles and radios; Solix Group purchase completed August 2025Acquired
Thrane & ThraneCobham Satcom (Solix Group) · DenmarkOld plate name on SAILOR equipment; renamed Cobham Satcom in 2013Renamed
SkantiCobham Satcom (Solix Group) · DenmarkLegacy MF/HF GMDSS sets; brand reached Thrane & Thrane via EuroCom IndustriesCeased
SP RadioCobham Satcom (Solix Group) · DenmarkOriginal SAILOR manufacturer; absorbed into Thrane & Thrane, now Cobham SatcomCeased
DebegGermanyGerman GMDSS radio brand on older SAM Electronics plates; no active site, owner unconfirmedCeased
Samyung ENCSouth Korea
ONWA Marine ElectronicsHong Kong SAR China
Koden ElectronicsJapan
AselsanTurkish Armed Forces Foundation · Türkiye
STN Atlas ElektronikGermanyLegacy plate name on 1990s and 2000s GMDSS consoles and bridges; split 2003.Renamed
Marconi MarineUnited KingdomMerchant radio installations from 1900; ceased trading December 2002, dissolved 2017Ceased

Portable and ATEX radios

JotronNorway

IcomJapan

Cobham SatcomSolix Group · DenmarkSAILOR survival-craft VHF handhelds and ATEX portables; formerly Thrane & ThraneAcquired
EntelUnited Kingdom
Standard HorizonYaesu Musen · Japan
JVCKENWOODJapan
Motorola SolutionsUnited States
HyteraChina
SimradNavico Group (Brunswick) · NorwayRS-series VHF DSC for workboats; Brunswick bought Navico in 2021Acquired
RaymarineTeledyne FLIR · United KingdomRay-series VHF DSC; FLIR bought Raymarine 2010, Teledyne bought FLIR 2021Acquired
GarminUnited States

Inmarsat terminals

Cobham SatcomSolix Group · DenmarkSAILOR FleetBroadband, Fleet Xpress and Inmarsat-C; formerly Thrane & ThraneAcquired
JRCNisshinbo Holdings · Japan
FurunoJapan
Intellian TechnologiesSouth Korea
Addvalue TechnologiesSingapore
Hughes Network SystemsEchoStar · United States
Beam CommunicationsAustralia
Nera SatComCobham Satcom (Solix Group) · NorwayLegacy Inmarsat-B and Fleet terminals; absorbed by Thrane & ThraneCeased

Iridium terminals and Certus

Lars ThraneDenmark
ThalesFrance
Cobham SatcomSolix Group · DenmarkSAILOR Iridium Certus terminals; formerly Thrane & ThraneAcquired
Intellian TechnologiesSouth Korea
Beam CommunicationsAustralia

VSAT and flat-panel antennas

Cobham SatcomSolix Group · DenmarkSAILOR VSAT and Sea Tel antennas; formerly Thrane & ThraneAcquired
Sea TelCobham Satcom (Solix Group) · United StatesUS VSAT antenna plate name, now built under Cobham SatcomAcquired
Intellian TechnologiesSouth Korea
KNSSouth Korea
Orbit Communication SystemsIsrael
KymetaUnited States
ThinKom SolutionsUnited States
Gilat Satellite NetworksIsrael
SWISSto12Switzerland
Hanwha PhasorUnited KingdomElectronically steered antennas; liquidated 2025, assets and IP to SWISSto12 — not a live supplierCeased
SatcubeSweden
ST Engineering iDirectST Engineering · United StatesVSAT hubs and modems; absorbed Newtec in 2019Acquired
Comtech TelecommunicationsUnited States
EPAKGermany
StarlinkSpaceX · United States
ViasatUnited States

NAVTEX, EGC and direction finders

FurunoJapan
JRCNisshinbo Holdings · Japan
ICS ElectronicsUnited Kingdom
Samyung ENCSouth Korea
Cobham SatcomSolix Group · DenmarkSAILOR NAVTEX receivers; formerly Thrane & ThraneAcquired
Nasa Marine InstrumentsUnited Kingdom
Rhotheta ElektronikGermany
Taiyo MusenMitsubishi Electric Group · JapanMarine RDFs on older plates; marine business transferred to Mitsubishi Electric 2015, no site since 2016Ceased

EPIRB, SART, AIS and release gear

JotronNorway

McMurdoSeas of Solutions · United KingdomSmartFind EPIRBs and SARTs; was Orolia Maritime until April 2021Acquired
Kannad MarineSeas of Solutions · United KingdomSafeLink EPIRBs; French-origin brand, a Seas of Solutions brand alongside McMurdo since April 2021Acquired
Ocean SignalACR Electronics (Acron Technologies) · United KingdomE100 EPIRBs, rescueME PLBs and AIS beacons; owned by ACR Electronics since 2021Acquired
ACR ElectronicsAcron Technologies · United StatesGlobalFix EPIRBs, ARTEX ELTs and AIS man-overboard beacons; in the Acron Technologies portfolioAcquired
Cobham SatcomSolix Group · DenmarkSAILOR EPIRBs and radar SARTs; formerly Thrane & ThraneAcquired
JRCNisshinbo Holdings · Japan
Samyung ENCSouth Korea
GMEAustralia
WeatherdockGermany
Teledyne TransponderTechTeledyne Technologies · SwedenAIS and VDES transponders; Teledyne completed the purchase from Saab on 31 October 2025Acquired
sMRTUnited KingdomFormerly Marine Rescue Technologies; AIS and DSC man-overboard beacons and tracking since 1975Renamed
Sea MarshallUnited Kingdom
CM HammarSweden
OroliaSafran · FranceFormer owner of McMurdo and Kannad; now Safran's navigation and timing armRenamed

Antennas, feeders and RF hardware

Shakespeare MarineUnited States
Scan AntennaDenmark
Amphenol ProcomAmphenol · DenmarkMarine and professional VHF/UHF antennas, filters and combiners; one of three Amphenol names hereAcquired
Comrod CommunicationNorway
AC AntennasDenmark
BantenItaly
GlomexItaly
Digital AntennaUnited States
Times Microwave SystemsAmphenol · United StatesLow-loss coaxial feeder and connectors; a business unit of Amphenol, Wallingford, ConnecticutAcquired
HUBER+SUHNERSwitzerland
ANDREWAmphenol · United StatesHELIAX feeder cable and connectors; the former CommScope outdoor wireless business, Amphenol-owned since 2025Acquired

GMDSS batteries and chargers

JotronNorway

SaftTotalEnergies · FranceNickel and lithium cells used as radio reserve power; Total-owned since 2016Acquired
EnerSysUnited States
GS YuasaJapan
HOPPECKEGermany
NewmarUnited States
Victron EnergyNetherlands
MastervoltNavico Group (Brunswick) · NetherlandsMarine chargers and battery systems; now inside Brunswick's Navico GroupAcquired
Mutlu BatteryMutlu Holding · Türkiye
Cobham SatcomSolix Group · DenmarkSAILOR battery chargers and packs for GMDSS consoles; formerly Thrane & ThraneAcquired
FurunoJapan
Samyung ENCSouth Korea

Satellite network operators

ViasatUnited States
InmarsatViasat · United KingdomBrand still used for Fleet Xpress, FleetBroadband and Inmarsat-C GMDSS servicesAcquired
Iridium CommunicationsUnited States
Eutelsat GroupFrance
SpaceXUnited States
SESLuxembourg
IntelsatSES · LuxembourgMaritime GEO capacity; brand being phased out after the 2025 SES acquisitionAcquired
ThurayaSpace42 · United Arab EmiratesRegional L-band voice and data; parent Yahsat became Space42 in 2024Acquired
TelesatCanada
Amazon LeoAmazon · United StatesLEO broadband renamed from Project Kuiper in November 2025Renamed

Satellite airtime service providers

MarlinkProvidence Equity Partners · Norway
SpeedcastCenterbridge Partners · United States
NavarinoGreece
NSSLGlobalUnited Kingdom
Satcom GlobalUnited Kingdom
AST NetworksUnited KingdomSatellite airtime and networks; renamed from Applied Satellite TechnologyRenamed
Castor MarineNetherlands
Station SatcomSingapore
IEC TelecomNorway
Tototheo GlobalCyprusFormerly Tototheo Maritime; airtime and connectivity, runs the MAR360 venture with SRH Marine SAITRenamed
AnuvuPlatinum Equity · United StatesCruise and maritime connectivity; renamed from Global Eagle in 2021, bought by Platinum Equity 2025Acquired
KVH IndustriesUnited States
Telenor MaritimeNorway
MacKay CommunicationsUnited States
GTMaritimeUnited Kingdom
DualogNorway

Radio service and installation networks

Alphatron MarineJRC (Nisshinbo Holdings) · NetherlandsEuropean bridge and radio supply and service; JRC-owned since 2013Acquired

Sperry MarineNorthrop Grumman · United Kingdom

Radio HollandPon Holdings · Netherlands
TelemarMarlink · ItalyBridge and radio service network; merged into Marlink Group in 2016Acquired
NACOS MarineSolix Group · GermanyHamburg bridge, navigation and automation house; formerly Wärtsilä ANCS, carrying SAM Electronics and Lyngsø MarineRenamed
SRH Marine SAITGreece
ElcomeUnited Arab Emirates

Radio test and calibration instruments

Bird TechnologiesUnited States
AnritsuJapan
Rohde & SchwarzGermany
Keysight TechnologiesUnited States

Voyage data recorders

DanelecGTT (Gaztransport & Technigaz) · DenmarkVDR and S-VDR plus ship performance and voyage data systems; a GTT group companyAcquired
Netwave SystemsSeas of Solutions · NetherlandsVDR and retrofit VDR; same group as McMurdo and Kannad MarineAcquired
FurunoJapan
JRCNisshinbo Holdings · Japan
Hailanshin (Highlander)China

SSAS, LRIT and vessel tracking

Pole Star GlobalUnited Kingdom
CLS (Collecte Localisation Satellites)CNES and CNP · France
ORBCOMMGI Partners · United StatesSatellite IoT and AIS-based vessel tracking data; taken private by GI Partners in 2021Acquired
Spire GlobalUnited States

PA/GA, alarms and sound signalling

ZenitelBelgium
DNHNorway
E2S Warning SignalsUnited Kingdom
KockumationSweden

Shipboard networking and link bonding

PeplinkHong Kong SAR China
CradlepointEricsson · United StatesCellular and SD-WAN edge routers; Ericsson acquired the company in 2020Acquired
Sierra WirelessSemtech · CanadaCellular routers, gateways and modules; Semtech completed the acquisition in January 2023Acquired
Teltonika NetworksLithuania

Fishing fleet VMS and satellite buoys

SatlinkSpain
Marine InstrumentsGrupo Arbulu · Spain
CLS (Collecte Localisation Satellites)CNES and CNP · France
FurunoJapan

Marks are reproduced on their own light ground, unmodified, and are the property of their owners. A mark here identifies equipment this work covers. It does not indicate any endorsement, authorisation or approval of ShipCertify by its owner.

17 of 160 marks on file

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