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A public reference property of Baalvion
Open data · every figure carries its source
Reported fleet size
—
No published figure available
Container capacity
—
Not a ranked container line
Gross tonnage on record
10,280
Summed over 2 ships reporting tonnage
In brief
Siem Offshore is an international offshore and subsea shipping company registered on the Cayman Islands with its main offices in Kristiansand, Norway.
The Company's fleet includes 50 vessels, of which 15 are under construction. The fleet includes platform supply vessels - PSVs, anchor handling tug and supply vessels - AHTS, multipurpose field and ROV support vessels - MRSVs, offshore subsea construction vessels - OSCVs, well intervention vessels - WIVs, scientific core drilling vessels - SCDVs and crew transport vessels - CTVs.
Furthermore, the subsidiary Siem Consub (Siem Offshore do Brasil) operates additional vessels in Brazil.
Siem Industries (33.7%) and Ace Crown International (19.4%) are the largest owners.
Corporate profile
Fleet on record
Composition of the 2 vessels this registry attributes to Siem Offshore. Bars are true proportions of that set, not of the company's full fleet.
By flag state
By shipbuilder
Delivery history
Ships delivered in each of the last 10 years, counted from the recorded build year of vessels attributed to this company, with the running total of its fleet on record. No deliveries fall inside this window — this company’s vessels on record were all built earlier.
| Year | Deliveries | Ships delivered | Gross tonnage added | Fleet on record |
|---|---|---|---|---|
| 2017 | 0 | — | 2 | |
| 2018 | 0 | — | 2 | |
| 2019 | 0 | — | 2 | |
| 2020 | 0 | — | 2 | |
| 2021 | 0 | — | 2 | |
| 2022 | 0 | — | 2 | |
| 2023 | 0 | — | 2 | |
| 2024 | 0 | — | 2 | |
| 2025 | 0 | — | 2 | |
| 2026 | 0 | — | 2 |
Vessel records
| Ship | IMO | Type | Flag | Built | Gross tonnage | Deadweight | Length | Builder |
|---|---|---|---|---|---|---|---|---|
| 9442421 | Tug | Norway | 2010 | 7,473 | — | 92.0 m | Kleven Verft | |
| 9420150 | Unclassified | Norway | 2009 | 2,807 | — | 74.0 m | Havyard Ship Technology |
Ships in registry counts individual vessel records attributed to the company here. Reported fleet is the company’s published total. They measure different things and are shown separately on purpose.
In context
Counts over companies and vessels actually held in this directory — not over the world fleet, which is larger. Nothing here is estimated.
With 2 vessels attributed to it here, Siem Offshore is the 341st largest of the 965 operators in this directory that hold at least one ship on record, against a median of 2 across that group. That is a count of individually identified hulls, not the company’s published fleet size — the two are different measurements and both are shown above where available.
Norway is the country of registration for 150 commercial operators in this directory, among which Siem Offshore ranks 60th by ships on record. Between them those companies hold 831 vessels here. See every operator registered in Norway.
Founded in 2005, Siem Offshore is 21 years old. This directory holds 122 operators founded within five years either side of that date, whose median fleet on record is 1 ships. The median founding year across all commercial operators here is 1966, and the oldest on record dates to 1514.
Same country
Wilson Ship Management
131 on record
Fjord1
76 on record · est. 2001
Solstad Shipping
49 on record · est. 1997
Hardanger Sunnhordlandske Dampskipsselskap
43 on record · est. 1880
DOF Management
25 on record · est. 1998
Norled
24 on record · est. 2000
Star Shipping
22 on record · est. 1961
Rostein
18 on record · est. 1988
Provenance
Company and vessel recordsWikidata item Q7510851, released under CC0. Counted figures on this page are counts over those records.
Written summaryQuoted from Siem Offshore on English Wikipedia, reused under CC BY-SA 4.0.
Published fleet figuresNo published fleet figure is available for this company.
