13 Mari
13 Mari develops passive composite hull elements that reduce frictional drag on commercial vessels by 3-7%, helping shipowners and operators cut fuel costs and meet EEXI/CII emissions regulations. The company markets directly to bulk carrier, tanker, and container ship operators worldwide.
- Company typePrivate
- Founded2021
- HeadquartersKearny, United States
- Headcount1–10
- GTM typeB2B
- OfferingHardware or Manufacturing
What 13 Mari does
13 Mari is a maritime technology company that develops and commercializes passive hull-mounted drag reduction technology for commercial shipping. The core product consists of composite elements attached to the underwater portion of a vessel's hull that interact with the boundary layer to reduce turbulence and frictional drag, requiring no external power, moving parts, or hull modification. Performance has been validated through computational fluid dynamics (CFD) modeling and physical tow tank testing at multiple ITTC-accredited facilities — CEHIPAR (Madrid), Varna, Tokyo, and Copenhagen — showing 5-8% drag reduction on bulk carrier models and an estimated ~3% fuel savings at full scale, with sea trials underway on commercial vessels.
The company serves commercial shipowners and operators of bulk carriers, tankers, and container vessels, with estimated annual fuel savings of ~$150K for a Handymax bulker, ~$560K for a VLCC tanker, and ~$1.4M for a container vessel serving as the customer economic justification. Revenue is generated through one-time equipment sales and installation services, with vessel-specific assessments and custom quotations rather than published pricing. The go-to-market is enterprise field sales: direct engagement with shipowners and technical teams, supported by partnerships with classification societies (Lloyd's Register), shipyards (Nihon Shipyard, Odessos Shipyard), operators (Swire Shipping, Fuyo Kaiun), and testing bodies (CEHIPAR). The technology is designed to align with EEXI and CII regulatory frameworks, with type approval actively being pursued.
Founded in 2021 and led by founder/CEO Krassi Fotev, the firm operates as 13 Mari Ltd. with US and EU operations and a distributed team across the US, EU, Hong Kong, Singapore, UK, and Canada. Funding to date is limited to a $74,578 NJEDA grant (2022) and Cleantech Open incubator recognition; the company is privately held with no disclosed institutional investors.
13 Mari firmographics
Firmographics- Name
- 13 Mari
- Legal name
- 13 Mari Ltd.
- Website
- https://13mari.com
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- 13 Mari develops passive composite hull elements that reduce frictional drag on commercial vessels by 3-7%, helping shipowners and operators cut fuel costs and meet EEXI/CII emissions regulations. The company markets directly to bulk carrier, tanker, and container ship operators worldwide.
- Ownership category
- akta.pro rank
13 Mari industry classification
Industry- Product category
- Maritime Fuel Efficiency Technology
- NAICS
- Ship Building and Repairing (336611)
- SIC
- Ship & Boat Building & Repairing (3730)
- akta.pro primary industry
- Propulsion, Power & Energy Systems Design (Diesel, Hybrid, Electric, Alternative Fuels) (IMAJAGAE)
- akta.pro secondary industry
- Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades) (IMAJAHAN)
Keywords
Where 13 Mari is headquartered
LocationHeadquarters
- HQ city
- Kearny
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
13 Mari business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Supply Chain, Personnel, Marketing or Sales, Operations
Revenue model
- Hull Technology Equipment & Installation: One-time equipment sales and installation services for passive hull elements. Estimated annual fuel savings serve as the economic justification: Handymax Bulker ~$150k/year, VLCC Tanker ~$560k/year, Container Vessel ~$1.4M/year. Zero operational expenditure after installation. Model is likely capital equipment + installation with no recurring fees.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Vessel-specific assessment and quotation |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
13 Mari product offering
Product offeringCore offering
13 Mari develops and commercializes a passive hull drag reduction technology for commercial maritime vessels. The technology uses composite elements applied to ship hulls that reduce hydrodynamic drag by 3-7%, achieving approximately 3% fuel savings. The solution is targeted at bulk carriers, tankers, and container ships, with performance validated in ITTC-accredited tow tank facilities in Madrid, Varna, Tokyo, and Copenhagen.
Product overview
13 Mari offers a single unified product: passive hull-mounted drag reduction technology, which comprises the core 13 Mari Elements (passive composite structures) plus associated services including Hull Analysis & CFD Optimization, and Implementation & Installation Services. The elements are designed for both retrofit and newbuild applications across commercial vessel types, providing 3-7% validated fuel savings without requiring external power or hull modification.
Differentiator
Problem solved
Functional benefit
Products and services
- Passive Hull Drag Reduction System Composite elements applied to ship hulls that reduce hydrodynamic drag by 3-7%, achieving approximately 3% fuel savings. Designed as a passive retrofit for commercial vessels including bulk carriers, tankers, and container ships, with no moving parts or power input required. Performance is validated in ITTC-accredited tow tank facilities.
Quantifiable outcome
- 3-7% drag reduction on commercial vessels
- +4 more outcomes
Companies that use 13 Mari
Customer profileNamed customers1 record
Segments2 records
Ideal customer profiles1 record
13 Mari technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
13 Mari partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core and minor.
- CEHIPARcoreCollaborating maritime institution. CEHIPAR (Central Hydraulic Institute of Spain) conducted tow tank validation testing for 13 Mari's passive hull technology. One of multiple ITTC-accredited testing facilities used for validation.
- Lloyd's RegistercoreClassification society partner collaborating with 13 Mari. Actively engaging with classification societies to secure type approval for the passive hull technology.
- NjordcoreMaritime industry partner collaborating with 13 Mari. Listed among partners collaborating with leading maritime institutions and operators.
- Swire ShippingcoreMajor shipping operator and partner. Listed among maritime operators collaborating with 13 Mari for technology validation and potential deployment.
- Nihon ShipyardcoreJapanese shipyard partner collaborating with 13 Mari. Engagement with established shipyards for technology implementation.
- Fuyo KaiuncoreJapanese shipping company partner. Listed among maritime operators collaborating with 13 Mari.
- Odessos ShipyardcoreShipyard partner collaborating with 13 Mari. Listed among maritime partners for technology implementation.
- AerotakminorAerospace-inspired technology partner. Listed among maritime institutions and operators collaborating with 13 Mari.
- Captain's TableminorMaritime industry network/association partner. Listed among maritime institutions and operators collaborating with 13 Mari.
Scale indicators5 records
Recent moves6 records
Expansion highlights6 records
13 Mari competitors and assessment
Company assessmentDirect peers
- Silverstream Technologies: Silverstream Technologies provides the Silverstream® air lubrication system, a direct competitor in vessel fuel-efficiency technology. Both target commercial shipowners with retrofit and newbuild solutions to reduce frictional drag and fuel consumption on the hull.
- Becker Marine Systems: Becker Marine Systems offers the Mewis Duct energy-saving device and other hull/propeller efficiency solutions for commercial shipping. Both companies compete in the hydrodynamic efficiency retrofit space targeting bulk carriers, tankers, and container vessels.
Broad incumbents
- Wärtsilä: Wärtsilä is a broad marine technology incumbent offering propulsion, fuel efficiency, and emissions-reduction solutions across the entire vessel lifecycle. Wärtsilä's portfolio overlaps with 13 Mari's energy efficiency theme but at massive scale and through a much wider product suite.
- Alfa Laval: Alfa Laval supplies marine equipment, including heat exchangers, separators, and fuel-treatment systems with growing exposure to marine energy efficiency. It is a broad incumbent serving commercial shipping operators with overlapping efficiency-oriented products.
- ABB Marine & Ports: ABB Marine & Ports provides electric propulsion, automation, and energy efficiency solutions for commercial vessels. ABB competes with 13 Mari in the broader maritime decarbonization and efficiency landscape, although through much larger-scale systems.
Others
- Hempel A/S: Hempel is a leading marine coatings supplier offering fouling-release and hull coatings that reduce drag and fuel consumption. Coatings are an adjacent/complementary fuel-efficiency solution targeting the same shipowner wallet as 13 Mari's passive elements.
- Jotun Marine Coatings: Jotun is a major marine coatings manufacturer offering hull coatings and fouling-control products that reduce drag. Coatings compete with 13 Mari on a similar value proposition (lower fuel burn, lower emissions) via an alternative technology route.
- International (AkzoNobel Marine): AkzoNobel's International marine brand supplies advanced anti-fouling and fouling-release coatings that reduce hull friction. Their Intersleek and premium coating lines compete indirectly with passive drag-reduction devices in the same shipowner budget.
Emerging players
- Future Ship (Navtec): Future Ship develops passive energy-saving devices for ships, including the Navtec system that interacts with the hull boundary layer. Both are emerging, specialist providers of passive drag reduction technology targeting commercial shipping fleets.
Regional players
- HullWiper (Veolia): HullWiper provides in-water hull cleaning and propeller polishing services at major ports. While it addresses drag through hull biofouling management rather than boundary-layer technology, it targets the same shipping-operator fuel-efficiency wallet.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
13 Mari social profiles
Digital presence13 Mari compliance and trust
Trust signalCompliance2 records
13 Mari financial estimates
Financial estimateRevenue estimate
Valuation estimate
13 Mari leadership team
Management profileNumber of profiles
Profiles1 record
13 Mari funding detail
Funding detailFunding overview
Funding rounds2 records
Investors2 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
13 Mari M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about 13 Mari
What does 13 Mari do?
13 Mari develops and commercializes a passive hull drag reduction technology for commercial maritime vessels. The technology uses composite elements applied to ship hulls that reduce hydrodynamic drag by 3-7%, achieving approximately 3% fuel savings. The solution is targeted at bulk carriers, tankers, and container ships, with performance validated in ITTC-accredited tow tank facilities in Madrid, Varna, Tokyo, and Copenhagen.
Is 13 Mari a public or private company?
13 Mari is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was 13 Mari founded?
13 Mari was founded in 2021. It employs 1 to 10 people.
Where is 13 Mari based?
13 Mari is headquartered in Kearny, United States, in the North America region.
How does 13 Mari make money?
One revenue line is on record: hull Technology Equipment & Installation.
Who are 13 Mari's main competitors?
Direct peers on record are Silverstream Technologies and Becker Marine Systems. Broad incumbents are Wärtsilä, Alfa Laval and ABB Marine & Ports. Others are Hempel A/S, Jotun Marine Coatings and International (AkzoNobel Marine). Future Ship (Navtec) is listed as an emerging player. HullWiper (Veolia) is listed as a regional player.
Does 13 Mari have an API?
No public API is recorded for 13 Mari.
What industry is 13 Mari in?
13 Mari's product category is Maritime Fuel Efficiency Technology. Its primary akta.pro industry code is IMAJAGAE, Propulsion, Power & Energy Systems Design (Diesel, Hybrid, Electric, Alternative Fuels), with a secondary code of IMAJAHAN, Propulsion MRO, Spares & Field Service (Overhauls, retrofits, upgrades). Its NAICS code is 336611 and its SIC code is 3730.