Navalyze · Market view · Compare

Compare operators, 2024

Pick a company or group, then the competitors to hold it against, or compare verifiers. Every figure comes from the public THETIS-MRV reports for EU and EEA voyages.

SIEM Ship Managementyour view

Side by side

All 2024 reports of each operator, across every ship type. Change is against 2023 where the operator reported then.

	SIEM Ship Management
Ships	16
CO₂ emitted	243 kt
Fuel per mile	102 kg/nm
Average speed	14.6 kn
CO₂ at berth	4.1%
Ships burning LNG	2
Main segment	Ro-ro

Fuel per mile and speed depend on ship size and type; compare them within a segment below.

Segment by segment

Efficiency only compares within a ship type. Each row gives the CO₂ per transport work of an operator's typical (median) ship, and the bar sets it against the typical ship of the whole segment: to the left of the line it emits less CO₂ for the same transport work, to the right more.

Ro-ro

CO₂ per transport work (cargo) in g CO₂/t·nm · segment median 97.5

SIEM Ship Management97.2 (0%)
← bettersegment medianworse →

	Ships	Per work	vs median	Fuel kg/nm	Speed kn	Hours at sea	At berth	LNG
SIEM Ship Management	4	97.2	0%	127	14.8	5,347	4.1%	–
Segment median		97.5	0%

Reefer

CO₂ per transport work (cargo) in g CO₂/t·nm · segment median 58.7

SIEM Ship Management44.7 (−24% vs median)
← bettersegment medianworse →

	Ships	Per work	vs median	Fuel kg/nm	Speed kn	Hours at sea	At berth	LNG
SIEM Ship Management	6	44.7	−24%	88	15.2	2,525	4.4%	–
Segment median		58.7	0%

Vehicle carrier

CO₂ per transport work (cargo) in g CO₂/t·nm · segment median 55.3

SIEM Ship Management48.0 (−13% vs median)
← bettersegment medianworse →

	Ships	Per work	vs median	Fuel kg/nm	Speed kn	Hours at sea	At berth	LNG
SIEM Ship Management	3	48.0	−13%	87	13.7	3,659	2.7%	2
Segment median		55.3	0%

Verification and monitoring

Who verifies each operator's reports, and which MRV methods its ships use to measure fuel (share of reports).

	Verifiers (ships)	A · delivery notes	B · tank monitoring	C · flow meters	D · direct
SIEM Ship Management	DNV (16)	0%	0%	100%	0%

SIEM Ship Management: ships furthest from their peers

Each ship's CO₂ per transport work against the median ship of its type and size band. +100% means the ship emits twice as much CO₂ for the same transport work as a typical ship of its size. Ro-pax ships show passenger figures, with freight underneath.

Ship	IMO	Segment	CO₂ per transport work	Size-band median	vs median	Speed kn	CO₂	Allowances
LISMORE	9848467	Ro-ro	79.6 g CO₂/t·nm	51.9	+53%	15.7	43,817 t	€288k
LEEVSTEN	9869954	Ro-ro	133 g CO₂/t·nm	105	+27%	16.1	32,617 t	€503k
WELLINGTON STAR	8917584	Reefer	58.1 g CO₂/t·nm	47.0	+24%	14.6	11,000 t	€187k
COLOMBIAN STAR	9172480	Reefer	42.5 g CO₂/t·nm	37.6	+13%	15.8	12,157 t	€191k
CARIBBEAN STAR	9150810	Reefer	42.3 g CO₂/t·nm	37.6	+13%	15.2	11,795 t	€185k
DUNEDIN STAR	9038945	Reefer	59.6 g CO₂/t·nm	58.1	+2%	14.4	5,186 t	€83k
COTE D'IVOIRIAN STAR	9172478	Reefer	46.5 g CO₂/t·nm	47.0	−1%	15.3	12,172 t	€193k
MOSEL ACE	9177052	Ro-ro	97.2 g CO₂/t·nm	105	−7%	12.3	17,127 t	€362k
COSTA RICAN STAR	9150822	Reefer	42.9 g CO₂/t·nm	47.0	−9%	15.4	10,829 t	€170k
SIEM ARISTOTLELNG	9841029	Vehicle carrier	47.9 g CO₂/t·nm	55.3	−13%	14.4	12,585 t	€195k
SIEM CONFUCIUSLNG	9841017	Vehicle carrier	48.0 g CO₂/t·nm	55.3	−13%	13.4	11,779 t	€181k
SIEM CICERO	9762534	Vehicle carrier	59.7 g CO₂/t·nm	73.3	−19%	13.4	14,104 t	€216k

30 of 16 reports shown. A high ratio can mean an older or faster-sailing ship, short trades with much time manoeuvring, or part-loaded voyages; it marks where to look first.

Notes

Companies are ISM companies (Document of Compliance holders) as named in THETIS, usually the ship manager.
Groups combine ISM companies matched on name and known ownership. If a company is in the wrong group, tell us at info@navalyze.com.
Efficiency figures use full-year reports with fuel; totals include part-year reports.
Euro figures use the EUA price set at the top of the page.
Verifier names vary by entity and year (for example DNV AS and DNV Hellas); they are rolled up into one brand. A verifier's figures cover the ships whose 2024 report it verified.