HORIZON ARMONIA

IMO 9407354

⭐ Vessel Spotlight — 2026-09-14 ✓ Not Sanctioned
Rank: #10 of 3,356 STS detections: 20 Loiter: 309 AIS gap events: 2 Zone dwell: 373 90-day AIS-derived behavioral indicators

The vessel HORIZON ARMONIA was selected as Vessel Spotlight due to its ranking of #10 out of 3,356 monitored vessels, with key 90-day metrics including 20 STS proximity events, 2 AIS gaps, 309 loitering events, and 373 zone dwell events. The top operating zones included the Eastern Mediterranean Surveillance Zone, Northern Baltic Sea Surveillance Zone, Southern Iberian Monitoring Zone, Western Approaches Surveillance Zone, and Eastern Mediterranean Monitoring Zone. The vessel was detected in the vicinity of terminal zones, but no direct terminal visits were recorded during this period. These metrics are AIS-derived behavioral indicators.

Vessel information

Vessel Name HORIZON ARMONIA
IMO Number 9407354
MMSI 636013938
Vessel Type Tanker
Flag 🇱🇷 Liberia
Call Sign A8QI9
Length 183 m
Beam 32 m
Gross Tonnage 29,828 GT
Build Year 2008

Movement & AIS Track

The vessel HORIZON ARMONIA was detected in the Eastern Mediterranean Surveillance Zone most frequently, with 446 events, including 224 zone dwell and 222 loiter events. It was also detected in the Northern Baltic Sea Surveillance Zone with 255 events, which included 94 zone dwell, 87 loiter, and 74 STS proximity events. The vessel was detected in the vicinity of several other zones, but no direct terminal visits were recorded during this period.

ZoneEventsTypesFirst SeenLast Seen
Eastern Mediterranean Surveillance Zone 446 zone_dwell: 224, loiter: 222 Aug 22, 2026 Sep 1, 2026
Northern Baltic Sea Surveillance Zone 255 zone_dwell: 94, loiter: 87, sts: 74 Sep 1, 2026 Sep 5, 2026
Southern Iberian Monitoring Zone 6 zone_dwell: 6 Sep 11, 2026 Sep 12, 2026
Western Approaches Surveillance Zone 5 zone_dwell: 5 Sep 13, 2026 Sep 13, 2026
Eastern Mediterranean Monitoring Zone 5 zone_dwell: 5 Sep 11, 2026 Sep 11, 2026
Central Atlantic Surveillance Zone 5 zone_dwell: 5 Sep 8, 2026 Sep 8, 2026
Brittany Coast Surveillance Zone 4 zone_dwell: 4 Sep 13, 2026 Sep 13, 2026
Central Atlantic Monitoring Zone 3 zone_dwell: 3 Sep 14, 2026 Sep 14, 2026
Norwegian Sea Sanctions Monitoring Zone 3 zone_dwell: 3 Sep 11, 2026 Sep 11, 2026
North Sea Surveillance Zone 3 zone_dwell: 3 Sep 11, 2026 Sep 11, 2026
Central Mediterranean Monitoring Zone 3 zone_dwell: 3 Sep 9, 2026 Sep 9, 2026
Eastern Mediterranean Surveillance Zone 3 zone_dwell: 3 Sep 8, 2026 Sep 8, 2026
Istanbul Black Sea Surveillance Zone 3 zone_dwell: 3 Sep 7, 2026 Sep 7, 2026
North Atlantic Monitoring Zone 2 zone_dwell: 2 Sep 13, 2026 Sep 13, 2026
Strait of Gibraltar Monitoring Zone 2 zone_dwell: 2 Sep 12, 2026 Sep 12, 2026

STS Proximity Partners

The vessel HORIZON ARMONIA recorded 20 STS proximity detections with a total of 2 distinct partner vessels. The most frequent partners detected in proximity were TWIST, with 38 events, and NAVIG8 EXPRESS, with 36 events. Both partner vessels are not sanctioned.

🇱🇷 TWIST
38 events Not Sanctioned
🇸🇬 NAVIG8 EXPRESS
36 events Not Sanctioned

Ownership & Management

Registered Owner
BOYERO SHIPPING LTD
C/O: Horizon Tankers Ltd SA 24, Kaningos Street, 185 34, Piraeus, Greece.
ISM Manager
V SHIPS UK LTD
8, Elliot Square, Glasgow, G3 8EP, United Kingdom.
Ship Manager
HORIZON TANKERS LTD SA
24, Kaningos Street, 185 34, Piraeus, Greece.
Commercial Manager
HORIZON TANKERS LTD SA
24, Kaningos Street, 185 34, Piraeus, Greece.
🏢
BOYERO SHIPPING LTD

BOYERO SHIPPING LTD appears to be a Greek ship-owning entity linked to the Piraeus-based Horizon Tankers group and identified as the registered owner of the chemical/products tanker HORIZON ARMONIA. Public vessel directories associate it with a single known vessel and show the company address care of Horizon Tankers Ltd SA in Piraeus, Greece.

Fleet1 vessel(s)

⚠ Red Flags

  • Company uses a c/o address tied to Horizon Tankers Ltd SA
  • Public records connect the vessel to Russian-origin petroleum trade reporting in 2023, but no sanctions or enforcement action was found against the company itself
  • Beneficial ownership is not publicly identified in the sources reviewed
🏢
V SHIPS UK LTD

V SHIPS UK LTD (also styled V.Ships UK Ltd / V.Ships (UK) Ltd) is a UK-based ship management company in Glasgow that provides technical, crew management, manning, and related marine services. Public listings describe it as part of the V.Group/V.Ships network serving a broad international managed fleet.

Fleet5 vessels (one ship-manager listing); other sources describe the broader V.Ships network as over 600 vessels, but that is not specific to this legal entity vessel(s)
Beneficial OwnerPublic sources indicate the company operates within V.Group/V.Ships, with Glasgow as the main team base. No specific beneficial owner, parent company legal chain, or shareholder register details were found in the searched sources.

⚠ Red Flags

  • Address is shared by multiple V.Ships-related entities and appears in several maritime directories
  • Company IMO number 0758614 is associated with vessel management roles across different ships, indicating a service-provider structure rather than vessel ownership
  • Public sources did not identify a single definitive corporate ownership chain for this exact legal entity
🏢
HORIZON TANKERS LTD SA

HORIZON TANKERS LTD SA is a Greece-based commercial ship manager in Piraeus, established in 2007 and engaged in broking and ship management services for oil major companies and trading houses. Public maritime listings associate it with tanker/chemical tanker management and a Piraeus office at 24 Kaningos Street.

Fleetunknown vessel(s)
Beneficial OwnerUnknown; one source describes HORIZON TANKERS as part of or related to Target Marine S.A., but this was not independently verified. A business directory snippet also lists a contact named Fotios Souridis, but no confirmed beneficial ownership structure was found.

⚠ Red Flags

  • Shared Piraeus shipping-office address used by multiple maritime entities
  • Corporate structure and beneficial ownership not clearly disclosed in public sources
  • Commercial-manager and registered-owner roles are split across different entities for HORIZON ARMONIA

Name, Flag & Ownership History

Name Changes (1)
  • Jul 1, 2008
    HORIZON ARMONIA
Flag Changes (1)
  • Jul 1, 2008
    🇱🇷 Liberia
DateCompanyRole
Jul 10, 2008HORIZON TANKERS LTD SAShip manager/Commercial manager
Jul 10, 2008TARGET MARINE SAShip manager/Commercial manager
Jul 10, 2008UNKNOWNISM Manager
Jul 10, 2008V SHIPS UK LTDISM Manager
Jul 10, 2008V SHIPS UK LTDISM Manager
Jul 10, 2008BOYERO SHIPPING LTDRegistered owner

Media Mentions

Classification & Safety

American Bureau of Shipping (IACS) Delivered
34
Total Inspections
2
Detentions

Disclaimer

This vessel profile is compiled from publicly available information sources including maritime databases, government sanctions lists, and AIS position data. Information may be incomplete, delayed, or contain inaccuracies.

This content is for informational purposes only and does not constitute legal, financial, or compliance advice. FleetLeaks makes no warranties regarding the accuracy or completeness of the information presented. Users should independently verify all information before making decisions.

Data Scope & Currency
This dossier reflects automated analysis of publicly available data sources as of September 14, 2026 (UTC). FleetLeaks does not assert intent or wrongdoing. Observations are derived from AIS behavioral signals, registry records, and other open sources, each subject to inherent latency and reporting limitations.

Data Refresh
This dossier can be re-generated using the same automated pipeline with the most current available data. A refresh re-executes the standard selection, enrichment, and analysis process and does not alter methodology or thresholds. To request a refreshed version of this dossier, please contact us. A nominal fee may apply to cover compute and data access costs.

Generated: 2026-09-14T10:02:36.789055Z