Caledonian Maritime Assets Limited (usually shortened to CMAL or CMAssets; Stòras Mara Cailleannach Earr in Scottish Gaelic) owns the ferries, ports, harbours and infrastructure for the ferry services serving the west coast of Scotland, the Firth of Clyde and the Northern Isles.

[5] In April 2018 it was agreed that the five vessels operated by NorthLink Ferries on routes to the Orkney and Shetland islands would also join the fleet.

[7] The newest vessel in the fleet, MV Glen Sannox, was handed over to CalMac on 21 November 2024,[8] and entered service on the Troon-Brodick route on 12 January 2025.

[5] MV Hebridean Isles was withdrawn from service in November 2024, and spare parts which could be used for maintaining other vessels are currently being removed for storage.

Additionally, CMAL owns and leases a number of properties at various locations associated with the delivery of Clyde and Hebrides Ferry Services.

MV Hallaig incorporates a low-carbon hybrid system of diesel electric and lithium-ion battery power.

[16] A third, to be named MV Catriona,[17] was launched in spring 2016 and operates on the Claonaig - Lochranza route, additionally to Tarbert (Loch Fyne) and Portavadie in the winter.

The redevelopment included an entirely new pier with linkspan and airbridge, a second berth with concrete ramp, a new two-storey terminal building with bus station and car marshalling space.

[18] CMAL was commissioned to carry out a feasibility study for Scottish Enterprise to evaluate the technical and commercial possibilities of using hydrogen fuel cells to enable the development of zero-emission ferries.

[23] The vessels will be able to operate on liquefied natural gas (LNG) and marine diesel, future-proofing them for tighter sulphur emissions regulations.

[27] The 'ferry fiasco' is an ongoing political scandal in Scotland, exposing management failures across all parties involved.

MV Glen Sannox was handed over to CalMac on 21 November 2024, and is now undergoing crew familiarisation and harbour berthing trials.

[36] On 3 October 2022 the first steel was cut for the first vessel, named MV Isle of Islay, at Cemre Shipyard, Turkey.

[48] A new vessel will be constructed to replace MV Lord of the Isles on the Mallaig-Lochboisdale (South Uist) service.

There have been numerous calls such as that from Kenny MacLeod, Chairman of Harris Development Trust, to scrap CMAL and reintegrate the organisation as an internal organ of Caledonian MacBrayne.