What kind of ship is Sleipnir?

Sleipnir is a crane vessel sailing under the flag of Panama, built in 2019 by Seatrium Limited. The vessel is 220 m long with a beam of 102 m.

Who is recorded as the owner or manager of Sleipnir?

Heerema Marine Contractors is recorded as Registered owner for Sleipnir (source: Wikidata). This source record does not independently confirm today’s ownership or management.

What sanctions and inspection records does Voydar hold for Sleipnir?

Voydar has no matched sanctions record displayed for Sleipnir from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for Sleipnir. Missing records do not establish whether the ship has been detained.

Sleipnir

Crane vessel · Panama · built 2019 · AIS Class A

IMO9781425MMSI374887000Call sign3FER4Last AIS position Sep 25, 2026, 00:49 UTC

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In short

Sleipnir (Crane vessel, Panama flag) was last seen on AIS on Sep 25, 2026, 00:49 UTC, under way at 9.4 kn, in the North Atlantic Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Its crew-entered AIS destination is TT POS (Port-of-Spain), with an ETA of Oct 6, 2026, 12:00 UTC; its reported draught is 13 m (voyage report via AISstream.io global terrestrial AIS, received Sep 25, 2026, 00:22 UTC). Its last detected port call was at Stord base: arrived Jul 22, 2026, left Jul 22, 2026. Registered owner: Heerema Marine Contractors (source: Wikidata). It can carry up to 400 passengers (source: Wikidata).

Vessel type: Crane vessel
Flag: Panama
Year built: 2019
Gross tonnage: —
Size (length × beam): 220 m × 102 m
Registered owner: Heerema Marine Contractors

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Last reported position

received Sep 25, 2026, 00:49 UTC

Position: 37.1889° N, 26.0107° W
Area: North Atlantic Ocean
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 9.4 kn
Course: 248°
Heading: 236°

37.1889° N, 26.0107° W

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Voydar detected no port call in the last 30 days.

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

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Identity & particulars

Name: Sleipnir
IMO numberWhat is an IMO number?: 9781425
MMSIWhat is an MMSI?: 374887000
Call signWhat is a call sign?: 3FER4
Flag: Panama
Vessel type: Crane vessel
AIS ship type: Reserved
Gross tonnageGross tonnage vs deadweight: —
Length overall: 220 m
Beam: 102 m
Year built: 2019
Passengers (maximum): Source: Wikidata, record Q45570553. Added to Voydar on September 23, 2026. Licence: CC0 1.0.400

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

Registered owner: Heerema Marine Contractors
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Builder: Seatrium Limited
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.

Date	Event	Source
Jul 22, 2026, 06:38 UTC	Left Stord baseAIS-detected	Voydar port-call detector (AIS geofence)
Jul 22, 2026, 02:53 UTC	Arrived at Stord baseAIS-detected	Voydar port-call detector (AIS geofence)
Jul 22, 2026, 02:53 UTC	Left Stord baseAIS-detected	Voydar port-call detector (AIS geofence)
Jul 21, 2026, 10:57 UTC	Arrived at Stord baseAIS-detected	Voydar port-call detector (AIS geofence)
Jul 21, 2026, 10:57 UTC	Left LeirvikAIS-detected	Voydar port-call detector (AIS geofence)
Jul 15, 2026, 13:23 UTC	Arrived at LeirvikAIS-detected	Voydar port-call detector (AIS geofence)

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Port calls

Two kinds of evidence, kept apart: calls Voydar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Detected from AIS AIS-detected

Port	Arrived	Departed	Time in port
Stord base NOSBA	Jul 22, 2026, 02:53 UTC	Jul 22, 2026, 06:38 UTC	3 h 45 min
Stord base NOSBA	Jul 21, 2026, 10:57 UTC	Jul 22, 2026, 02:53 UTC	15 h 57 min
Leirvik NOLRI	Jul 15, 2026, 13:23 UTC	Jul 21, 2026, 10:57 UTC	5 d 21 h
Stord base NOSBA	Jul 15, 2026, 11:27 UTC	Jul 15, 2026, 13:23 UTC	1 h 56 min
Stord base NOSBA	Jul 14, 2026, 15:24 UTC	Jul 15, 2026, 11:27 UTC	20 h 3 min
Leirvik NOLRI	Jul 14, 2026, 00:54 UTC	Jul 14, 2026, 15:24 UTC	14 h 30 min
Raunes - Vindafjord NORES	Jul 6, 2026, 16:43 UTC	Jul 7, 2026, 08:06 UTC	15 h 23 min

Detected by Voydar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.

About Sleipnir

SSCV Sleipnir is a semi-submersible crane vessel (SSCV) owned and operated by the Netherlands-based Heerema Marine Contractors. It was ordered in 2015 and built in Singapore by Sembcorp Marine. It was named for Sleipnir, the eight-legged horse ridden by Odin in Norse mythology. The vessel is equipped with two revolving cranes built by Huisman Equipment B.V., each with a capacity of 10,000 t (11,000 short tons); the main cranes can be operated in tandem to jointly lift 20,000 t (22,000 short tons). After its completion in 2019, SSCV Sleipnir succeeded Heerema's earlier SSCV Thialf as the largest crane vessel in the world.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is Sleipnir now?: Sleipnir (Crane vessel, Panama flag) was last seen on AIS on Sep 25, 2026, 00:49 UTC, under way at 9.4 kn, in the North Atlantic Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was TT POS (voyage report via AISstream.io global terrestrial AIS, received Sep 25, 2026, 00:22 UTC). This report does not confirm the ship’s current route.
What kind of ship is Sleipnir?: Sleipnir is a crane vessel sailing under the flag of Panama, built in 2019 by Seatrium Limited. The vessel is 220 m long with a beam of 102 m.
Who is recorded as the owner or manager of Sleipnir?: Heerema Marine Contractors is recorded as Registered owner for Sleipnir (source: Wikidata). This source record does not independently confirm today’s ownership or management.
What sanctions and inspection records does Voydar hold for Sleipnir?: Voydar has no matched sanctions record displayed for Sleipnir from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for Sleipnir. Missing records do not establish whether the ship has been detained.

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