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LNG carrier under way at sunset

Our team

The experienced superintendents behind every Geomar STS operation — calm leadership, safety-first judgement, a proven global track record.

The people

Decades of hands-on maritime experience.

Geomar STS is led by STS Superintendents who offer expert advice to the respective vessel Masters involved in STS operations to accomplish a safe, coordinated and timely STS transfer.

George M. Lefter — Founder & STS Superintendent, Geomar STS
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George M. Lefter

STS Superintendent · LNG POAC · Master Mariner

The founder of Geomar STS and a Master Mariner with over 25 years in the maritime industry. An LNG STS Superintendent and POAC, he has led LNG Ship-to-Ship and mooring operations globally since 2022, and has served as STS Superintendent and Mooring Master since 2020 — overseeing safe, efficient and compliant transfers of LNG, LPG and oil cargoes worldwide.

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Sorin Lefter — LNG/C Chief Engineer, Geomar STS
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Sorin Lefter

LNG/C Chief Engineer · Marine Engineering

A senior marine engineer with over a decade as Chief Engineer aboard LNG carriers (MAN ME-GA, DFDE) and FSRUs, alongside oil and chemical tankers — with operators including Northern Marine, Maersk Tankers and Thome Ship Management. He brings deep technical and engineering oversight to Geomar STS operations.

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Capt. Adrian Marciuc — LNG STS Superintendent & Senior Master Mariner, Geomar STS
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Capt. Adrian Marciuc

LNG STS Superintendent · Senior LNG Master Mariner

An LNG STS Superintendent and senior LNG Master Mariner with extensive command experience and numerous recent LNG STS operations in Egypt, Mexico, Jamaica and Brazil. He is recognised for calm leadership, sound judgement, and an approachable professional presence that inspires confidence in demanding marine operations.

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Eduard Lefter — Digital & Communications, Geomar STS
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Eduard Lefter

Digital & Communications · Web & Brand

Founder of InReach Studios and the digital lead behind Geomar STS. He designs and manages the company's website, brand and online presence — ensuring an operation delivered to the highest standard at sea is presented just as clearly and professionally online, worldwide.

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Let's contact

Work with a team that puts safety first.

Inquire about our services or schedule a technical meeting — safe, efficient and compliant, worldwide.