Always-on spares & supply desk
Vessels do not keep office hours. Our spares desk quotes, sources and dispatches around the clock, so a pump seal ordered at 03:00 still makes the next port call.
Greek marine chemicals — 900+ ports worldwide
Premium Marine Chemicals & Cleaning Equipment
Join a world of high-sophistication marine chemicals and equipment for cleaning and maintenance of the commercial fleet. Trust a Greek tailor-made maritime services company, aligned with our partners' synergies, to serve you worldwide with high-quality marine chemicals, cleaning equipment, and spare parts for any brand of cleaning equipment. SEVEN CHEM & TECH is a Greek marine chemicals company delivering tailored solutions compliant with IMO / MARPOL Annex II & MEPC.2/Circ.31 in accordance with regulation 6.3 of MARPOL Annex II and the IBC Code, through strong international partnerships.
900+ ports served worldwide — see the network
Who we are
Seven Chem & Tech is a marine solutions provider supplying high-quality, IMO and MARPOL-compliant chemicals, cleaning equipment, PPE and spare parts to vessels in more than 900 ports worldwide. Based in Skaramagkas, Athens, Greece, we serve tankers, bulk carriers, container vessels and offshore operators with reliable products, technical expertise and 24/7 worldwide support.
900+
Ports Supporting Worldwide
365
Days a Year
34
Stock Points
24/7
Expert Support
What we supply
Marine Supplies: Everything a Vessel Needs
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Tank Hold Cleaners
Solvent-based and water-based cargo tank cleaning chemicals
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Cargo Hold Cleaners
Hold cleaners, preloading barriers and protective coatings
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Maintenance Chemicals
For engine room, deck and accommodation areas
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Water Treatment
Boiler, cooling and potable water solutions
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Fuel Treatment
Additives for HFO, MGO and distillate fuels
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Cleaning Equipment
High-pressure washers, foam units and accessories
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Personal Protective Equipment
PPE for marine operations
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Test Kits
Chemical, water and fuel analysis on board
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Spare Parts
For cleaning equipment, with 24/7 worldwide availability
Our mission is to support the maritime industry by delivering reliable, high-quality chemicals, equipment and technical expertise that enhance vessel performance, operational safety and environmental compliance. We help our partners maintain cargo holds and tanks in optimal condition, support maintenance with certified solutions, improve water and fuel treatment processes, and provide advanced equipment and training for safe, effective cleaning operations.
Why Seven
Built for the way fleets actually run.
Ports on the network
One order, delivered wherever the voyage goes — from Rotterdam to Fujairah to Santos.
Nine lines, one contact
Chemicals, equipment, PPE, test kits and spares from a single point of contact — one PO, one invoice, one call.
Certified end to end
Quality, environmental and safety management audited to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 — from sourcing to the moment supplies land on deck.
Fleets
Built for
every fleet.
Marine chemistry, hands-on know-how and a global logistics network — wherever the voyage goes.
Tankers
Cargo tank cleaning programs for crude, product and chemical carriers. Plan a supply ↗
Bulk carriers
Hold preparation chemistry, from coal residue to grain-clean standard. Plan a supply ↗
Container vessels
Maintenance and water treatment built around tight port rotations. Plan a supply ↗
Offshore
Supply for platforms, OSVs and rigs operating far from shore. Plan a supply ↗Proof on deck
Before / after.
Drag the handle to see what a cleaning program leaves behind.
Compliance is the baseline.
Our chemical formulations are developed in alignment with IMO / MARPOL Annex II and MEPC.2/Circ.31 under regulation 6.3 of MARPOL Annex II and the IBC Code, including approved tank cleaning additives and proper classification of Noxious Liquid Substances (NLS).
ISO 9001:2015
Quality management
Audited processes from sourcing to delivery, so the product that arrives is the product you ordered.
ISO 14001:2015
Environmental management
Chemistry selected and handled to keep discharge, waste and emissions inside regulation.
ISO 45001:2018
Health & safety
Crew safety built into every datasheet, label and handling instruction we supply.
Field footage
See the clean happen.
Cargo hold washdown on a working deck — the equipment, the chemistry and the crew, in real conditions.
Global Presence
We keep vessels moving worldwide
Our extensive distribution network ensures that high-quality marine chemicals and equipment are available wherever your vessels need them, whenever they need them.
149 ports shown — drag to spin
Answers up front
Frequently asked.
How fast can you quote and deliver?
The supply desk runs 24/7 and most quotes go out within hours. Delivery is coordinated with your agent against the vessel's ETA — alongside, at anchorage or via boat service, depending on the port.
Are your chemicals IMO and MARPOL compliant?
Yes. Formulations align with IMO / MARPOL Annex II and MEPC.2/Circ.31 under regulation 6.3 of MARPOL Annex II and the IBC Code, including approved tank cleaning additives and proper NLS classification.
Which documents accompany each delivery?
Every product ships with its Material Safety Data Sheet (MSDS), technical datasheet and dosing guidance the crew can actually follow; certificates of analysis are available on request.
Do you cover spare parts as well as chemicals?
Yes — spare parts for cleaning equipment with 24/7 worldwide availability, plus high-pressure washers, foam units, PPE and onboard test kits, all from one point of contact.
Which vessel types do you serve?
Tankers (crude, product, chemical), bulk carriers, container vessels and offshore platforms, OSVs and rigs — in more than 900 ports worldwide.
Need supplies at the next port?
Request a quote