SEIMI Marine Equipment

What SEIMI Marine Equipment does

SEIMI Marine Equipment is a French specialty distributor of professional marine and inland waterway equipment, headquartered in Brest and operating for over 50 years (founded circa 1969-1970). The company distributes more than 40,000 product references across 12+ categories — engine controls and steering, propulsion, engine environment (including IMO MEPC.107(49)-compliant bilge water treatment), marine pumps, electrical systems, comfort on board, lighting and signalling, deck equipment, safety, and fishing/hydraulics — sourced from 70+ partner brands such as ZF Marine, HamiltonJet, VDO/Continental, WhisperPower, Kobelt, Hella Marine, Blue Sea Systems, and Ocean Safety. Its core technology is distribution and supply-chain integration rather than proprietary manufacturing, complemented by an in-house design and technical department that delivers made-to-measure custom solutions alongside standard catalog products.

SEIMI serves exclusively professional B2B customers — shipyards, refit yards, maintenance and repair companies, specialist shops, shipowners, fleet operators, the Navy, and commercial fishermen — with a sales-led go-to-market executed through direct account management, a web account-opening and e-commerce channel, downloadable catalog, trade show presence (including Euromaritime), and newsletter engagement. Pricing is unit-based per product with VAT, ranging from approximately €19 for small sensors to €84,780 for industrial bilge water separators, with volume/contract pricing available through professional account opening; no subscription or recurring revenue model is evident. The company differentiates on logistics (24-48 hour express delivery with orders accepted until noon), regulatory credibility (NATO/OTAN and ISO certifications), and SKU breadth, and has begun aligning its catalog with the marine energy transition through lithium batteries, flexible solar panels, and variable-speed generator offerings.

Name

SEIMI Marine Equipment

Legal name

SEIMI

Website

https://seimi-equipements-marine.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

11–50 employees

Short description

SEIMI Marine Equipment is a French specialty distributor of professional marine equipment, supplying shipyards, refit yards, fleet operators, navies, and fishermen with 40,000+ SKUs from 70+ partner brands via direct sales and e-commerce.

Ownership category

akta.pro rank

Product category

Marine Equipment Distribution

NAICS

Ship Building and Repairing (336611), Boat Building (336612)

SIC

Ship & Boat Building & Repairing (3730), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Marine Parts, Accessories & Maintenance Supplies Retail (CRAMAIAB)

akta.pro secondary industries

Accommodation & Interior Outfit (Cabins, Galleys, Sanitary, Furniture) (IMAJAIAF), Marine Electrical Installation, Commissioning & Field Services (IMAJAJAL)

Keywords

• Marine equipment distribution
• Shipyard equipment supply
• Boat parts wholesaler
• Nautical equipment distributor
• Professional marine solutions

Headquarters

HQ city

Brest

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Product Distribution: Distribution of marine equipment and technical solutions to professional customers. Revenue generated through sale of products across 12+ product categories including engine controls, propulsion, pumps, electricity, safety, and comfort equipment. Products sourced from 70+ partner brands.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

SEIMI Marine Equipment is a French distributor, wholesaler, and supplier specializing in technical marine equipment for professionals in the maritime, river, and naval sectors. The company offers more than 40,000 product references from over 70 partner brands across 13+ product categories, including engine controls, propulsion, pumps, electrical systems, safety equipment, and on-board comfort solutions for shipyards, refit yards, fleet operators, and naval/defense clients.

Product overview

SEIMI Marine Equipment is a French distributor offering over 40,000 product references for the professional marine and inland waterway industry. The product portfolio includes 13 main categories: Engine Controls & Steering (cables, hydraulic/mechanical steering, electronic controls), Propulsion (thrusters, propellers, waterjets including HamiltonJet HTX/LTX/HJ/HJX/HT/HM series, electric propulsion), Engine Environment (bilge water treatment OWS separators, VDO/SEIN sensors, fuel filtration), Anodes & Maintenance, Marine Pumps (motopumps, transfer pumps, bilge pumps), Electricity (generators, solar panels, batteries including Crosseven LiFePO4, inverters, wind turbines), Comfort on Board (air conditioning via Veco/Climma/Frigoboat, watermakers Aqua-Base, Sanimarin toilets, refrigeration), Gateway & Navigation (wipers, seats, instruments), Lighting & Signalling (navigation lights, searchlights, underwater lights), Deck Equipment (windlasses, mooring), Safety (life jackets, SOLAS equipment, fire detection), and Fishing & Hydraulics. They serve commercial, military, fishing, and pleasure craft sectors with both standard products and custom engineered solutions through their design & technical department.

Differentiator

Problem solved

Functional benefit

Products and services

• Engine Controls and Monitoring
• Propulsion Equipment
• Marine Pumps and Bilge Water Treatment

Quantifiable outcome

• Order until 12h - delivers in 24/48h

Named customers7 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

25 partnerships are on record, tiered core, major and minor.

• ZF Marine TransmissioncoreTechnology or IntegrationPartnership for marine transmission products including ZF Marine Transmission systems and spare parts distribution
• HamiltonJetcoreTechnology or IntegrationDistribution of HamiltonJet waterjet products including HTX, LTX, HJ, HJX, HT, HM series and control systems
• VDO (Continental)coreTechnology or IntegrationWide range of VDO marine sensors, transmitters, indicators and navigation instruments for engine monitoring and control
• WhisperPowermajorTechnology or IntegrationMarine generator sets, battery chargers, inverters and energy solutions including Piccolo diesel generators and sinewave inverters
• CristecmajorTechnology or IntegrationMarine battery chargers and power conversion equipment distribution
• Ocean SafetymajorChannel Partner/ Reseller/ DistributorLifeboats, liferafts, and maritime safety equipment including SOLAS professional products
• Aqua-BasemajorTechnology or IntegrationRO Watermakers including Fiji, Aruba Comfort, Aruba Premium, and Piana series for fresh water production
• KobeltmajorTechnology or IntegrationElectronic engine controls and steering systems for professional marine applications
• UltraflexmajorTechnology or IntegrationEngine control systems and mechanical steering solutions for marine vessels
• NORSAPmajorTechnology or IntegrationMarine seating solutions including pilot seats, helm chairs, and suspension seats across multiple series
• SanimarinmajorTechnology or IntegrationElectric marine toilets and waste water treatment systems
• ItalwinchmajorTechnology or IntegrationElectric windlasses (horizontal and vertical) and capstans for anchoring applications
• VecomajorTechnology or IntegrationMarine air conditioning and refrigeration solutions including Climma and Frigoboat product lines (now unified under Veco brand)
• Hella MarinemajorTechnology or IntegrationMarine lighting solutions including navigation lights and signaling equipment
• Blue Sea SystemsmajorTechnology or IntegrationElectrical panels, circuit breakers, and marine electrical distribution products
• NexansmajorTechnology or IntegrationMarine electrical cables and connectors for vessel electrical systems
• PlastimominorChannel Partner/ Reseller/ DistributorLifejackets, safety equipment, and marine accessories
• Parker RacormajorTechnology or IntegrationFuel filtration systems including prefilters and filter elements for diesel engines
• Ocean SignalmajorTechnology or IntegrationDistress beacons, EPIRBs and maritime safety communication equipment
• JetfloatminorChannel Partner/ Reseller/ DistributorModular pontoon systems and floating platforms for dock applications
• RefleksmajorTechnology or IntegrationDiesel heating solutions including stoves, expansion tanks, and marine heating systems
• LuminellmajorTechnology or IntegrationMarine searchlights and floodlights for vessel illumination
• SpectramajorTechnology or IntegrationWater watermakers and desalination systems for marine vessels
• WichardmajorTechnology or IntegrationMarine hardware including shackles, hooks, and lifting equipment
• CrossevenmajorTechnology or IntegrationLithium batteries and energy storage solutions for marine applications

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Imtra: US-based distributor of marine equipment, propulsion, and hardware products serving shipyards, yards, and boat builders. Directly comparable B2B distributor model with multi-brand portfolio and professional customer base, similar to SEIMI's positioning.
• ASAP Supplies: UK-based marine equipment distributor and chandlery serving boat builders, repair yards, and commercial operators. Closely comparable catalog-distribution model with European professional maritime customers, mirroring SEIMI's product breadth and B2B focus.
• West Marine: Large US marine retailer and distributor with a deep multi-category catalog of marine parts, safety, propulsion, and comfort products. Comparable as a multi-brand marine equipment distributor, though substantially larger and consumer-leaning compared to SEIMI's pure professional B2B focus.
• Defender Marine: US-based marine equipment retailer offering a broad catalog of marine hardware, electronics, and safety products to both professionals and consumers. Comparable as a multi-brand marine parts distributor, though primarily serving the North American market.
• SVB (Sailing Yacht Boutique): Germany-based marine equipment retailer/distributor with a comprehensive catalog of deck hardware, electronics, safety, and propulsion products. Closely comparable multi-brand European marine distributor with both B2B and prosumer reach.
• Marine Parts Source: Online marine parts distributor serving mechanics, marinas, and boat owners across North America with multi-brand engine, electrical, and propulsion components. Comparable as a multi-brand marine equipment distributor focused on professional trade customers.

Broad incumbents

• Wärtsilä: Global marine technology incumbent supplying engines, propulsion systems, and integrated solutions to shipyards and operators worldwide. Comparable as a supplier of marine propulsion and engine-environment products, but at vastly greater scale and with proprietary technology.
• Volvo Penta: Global OEM of marine engines, propulsion systems, and controls, also distributing through dealer networks. Comparable as a brand whose products flow through SEIMI's channel; broader incumbent selling both direct and via distributors.

Regional players

• Plastimo: French marine equipment manufacturer and distributor specializing in safety, deck hardware, and navigation products. Comparable as a France-based marine equipment peer; also listed as a SEIMI distribution partner.

Others

• ZF Marine: Global manufacturer of marine transmissions, controls, and steering systems, listed as a core SEIMI partner. Comparable as an upstream supplier whose products flow through SEIMI; included to reflect channel dependency rather than direct competition.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/SeimiBrest
• Facebookfacebook.com/Seimi.fr

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SEIMI Marine Equipment