Foss Maritime

What Foss Maritime does

Foss Maritime Company, LLC is a marine transportation and harbor services provider headquartered at 450 Alaskan Way S., Seattle, Washington, in continuous operation since 1889. The company delivers three core service lines: Harbor Services (ship assist and tanker escort, regional towing, construction support, line handling, petroleum transport, emergency response and rescue, barge mooring, and terminal services), Marine Transportation Services (point-to-point global turnkey logistics, ocean towing, and project cargo management for exceptional technical challenges), and Marine Engineering & Naval Architecture (project management, marine engineering, naval architecture, consultation, and inspection services). Its operating asset base is a versatile fleet of tugs, barges, and specialized marine equipment - notably including the industry's first hybrid tug vessel - delivered across eight regions: Puget Sound, Columbia/Snake River, Northern California, Southern California, Alaska, Hawaiian Islands, Gulf Coast, and Global Services.

Name

Foss Maritime

Legal name

Foss Maritime Company, LLC

Website

https://foss.com

Company type

Private

Founded year

1889

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Foss Maritime Company, LLC provides harbor services, marine transportation, and engineering to enterprise customers in oil & gas, government, manufacturing, construction, and mining across eight U.S. coastal regions and global project sites. Founded 1889; Saltchuk Marine subsidiary.

Ownership category

akta.pro rank

Product category

Marine Transportation & Harbor Towing Services

NAICS

Support Activities for Water Transportation (4883), Marine Cargo Handling (488320)

SIC

Water Transportation (4400)

akta.pro primary industry

Offshore Support & Marine Logistics Vessel Operators (PSV/AHTS) (TLADABAL)

akta.pro secondary industries

Offshore Marine & Aviation Support (PSVs, AHTS, Crew Boats, Helicopters) (EUALABAJ), Marine Terminals & Cargo Handling Infrastructure (RoRo, Bulk, Container) (IMAFAJAF), Naval Logistics, Replenishment & Underway Transfer Systems (IMABAKAM)

Keywords

• Harbor tug services
• Marine transportation
• Ship assist towing
• Naval architecture
• Offshore wind logistics

Headquarters

HQ city

Seattle

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Marketing or Sales, Technology or R&D

Revenue model

1. Harbor Services: Ship assist and tanker escort, regional towing, construction support, line handling, barge mooring, terminal services, and emergency response services billed per job or contract basis.
2. Marine Transportation: Point-to-point global logistics, ocean towing, and project cargo transportation for exceptional technical challenges. Revenue generated through project-based contracts and transportation fees.
3. Technical Engineering Services: Project management, marine engineering, naval architecture, consultation support, and inspection services for large-scale transportation projects.
4. Petroleum Transport: Bunker delivery and petroleum transportation services to vessels and facilities.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Foss Maritime provides harbor services (ship assist, tanker escort, regional towing, construction support, line handling, barge mooring, bunker and petroleum transport, emergency response and rescue towing, and terminal services) and marine transportation services (point-to-point global turnkey logistics, ocean towing, and project cargo management) for enterprise and government clients. The company complements these services with an in-house Technical Engineering Group offering project management, naval architecture, marine engineering, consultation, and inspection, plus specialized LNG bunkering and offshore wind installation support.

Product overview

Foss Maritime operates as a marine transportation and services company with three core offerings: Harbor Services (ship assist, tanker escort, regional towing, construction support, line handling, petroleum transport, emergency response, and terminal services), Marine Transportation Services (global turnkey logistics, ocean towing, and project cargo management), and Marine Engineering and Naval Architecture (project management, logistics, engineering, and consultation for large-scale transportation projects). The company also provides specialized LNG bunkering and offshore wind services. Operating since 1889, the company maintains operations across the West Coast, Alaska, Hawaii, and Gulf Coast regions, with a fleet of tugboats and barges supported by technical engineering capabilities.

Differentiator

Problem solved

Functional benefit

Products and services

• Harbor Services Comprehensive harbor services including ship assist and tanker escort, regional towing, construction support, line handling, bunker delivery, petroleum transport, emergency response and rescue services, barge mooring, and terminal services, delivered by Foss's versatile tug and barge fleet to enterprise and government customers in U.S. ports.
• Marine Transportation Services Point-to-point global turnkey logistics, ocean towing, and total project management for project cargos with exceptional technical and operational challenges, serving enterprise customers across oil & gas, government, construction, mining, and renewable energy.
• Marine Engineering and Naval Architecture Technical engineering services including project management, global logistics, marine engineering, naval architecture, consultation support, and inspection services delivered by the Foss Technical Engineering Group for large-scale transportation projects.
• LNG Bunkering Liquefied natural gas bunkering services for vessels, supporting customers' transition to cleaner marine fuels through Foss's specialized marine fuel delivery capability.
• Emergency Response and Rescue Towing Emergency response, rescue, and salvage towing services for vessels in distress, supported by Foss's 24-hour dispatch and customer support line.
• Offshore Wind Services Installation support, laydown, supply, and transportation services for the U.S. offshore wind industry, delivered through the Foss Offshore Wind subsidiary.

Named customers8 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Eleven partnerships are on record, tiered core and minor.

• Saltchuk Marine (Parent Company)coreOthersSaltchuk Marine is the parent company of Foss Maritime. Saltchuk is a privately-owned family of diversified transportation and distribution companies headquartered in Seattle, WA, ranked among the largest privately held businesses in Washington. It provides air cargo, marine services, energy distribution, domestic shipping, international shipping, logistics, and energy shipping throughout North America.
• AMNAV MaritimeminorStrategic or Co-development PartnerAMNAV Maritime is a tug and marine transportation company offering ship assist and offshore towing on the U.S. West coast, operating under the Saltchuk Marine family.
• Cook Inlet Tug & BargeminorStrategic or Co-development PartnerCook Inlet Tug & Barge provides ship assist services at Alaskan ports, construction support, offshore rig and other types of offshore maritime services.
• Young BrothersminorStrategic or Co-development PartnerYoung Brothers is Hawaii's leading freight handling and transportation company transporting general freight, mixed pallets, roll-on/roll-off equipment and containerized cargo.
• Foss Offshore WindminorStrategic or Co-development PartnerFoss Offshore Wind is a leading provider of Installation Support, Laydown, Supply and Transportation Services to the US Offshore Wind Industry.
• TOTE Maritime AlaskaminorStrategic or Co-development PartnerTOTE Maritime Alaska is the premier provider of ocean transportation services between Anchorage, Alaska and Tacoma, Washington, operating RO/RO cargo ships with intermodal connections.
• TOTE Maritime Puerto RicominorStrategic or Co-development PartnerTOTE Maritime Puerto Rico provides common carrier service from the U.S. mainland to Puerto Rico and U.S. Virgin Islands, operating the first LNG-powered containerships in the world.
• Tropical ShippingminorStrategic or Co-development PartnerTropical Shipping delivers cargo transportation services in the Bahamas and Caribbean, including refrigerated, LCL, marine insurance, consolidation, and project cargo services.
• Carlile TransportationminorStrategic or Co-development PartnerCarlile Transportation is one of Alaska's largest trucking companies, offering full range of transportation and logistics services with terminals serving Alaska from Anchorage, Fairbanks, Kenai, Kodiak, Prudhoe Bay, Seward, and other locations.
• Northern Air Cargo (NAC)minorStrategic or Co-development PartnerNorthern Air Cargo has served as Alaska's largest all-cargo airline since 1956, offering air transportation options for cargo shipments.
• Aloha Air CargominorStrategic or Co-development PartnerAloha Air Cargo operates fleet of Boeing 737-300 freighters and Boeing 767-300 freighter providing regular flights to major airport destinations within Hawaii State.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Kirby Corporation: Publicly traded U.S. inland and coastal marine transportation operator with a sizable tank barge fleet. Comparable to Foss's petroleum transport and barge business lines, but with broader inland distribution scale rather than harbor-towage specialization.

Direct peers

• Crowley Maritime Corporation: Privately held, Jacksonville-based operator of harbor tugs, ship assist, tanker escort, and marine solutions across U.S. coasts, the Caribbean, and Latin America. Closest comparable to Foss in scale, service mix (harbor services + marine transportation + engineering), and customer base in oil & gas, defense, and offshore energy.
• McAllister Towing & Transportation Company: Privately held, multi-generational U.S. tug and barge operator on the East Coast and Puerto Rico. Comparable to Foss for ship assist, tanker escort, and general harbor services with a similar private, multi-decade operating history.
• SAAM S.A. Chilean-based harbor towage operator with extensive Americas footprint. Comparable to Foss as a multi-port harbor services provider that serves oil & gas and container shipping customers across multiple regions.
• Harley Marine Services: U.S. marine transportation company operating tugs and barges on the West Coast and Gulf Coast, providing ship assist, tanker escort, and petroleum transport. Directly comparable to Foss's geographic and service-line overlap.
• Moran Towing Corporation: Family-owned U.S. harbor towing and ship assist operator with East Coast concentration. Directly comparable to Foss's harbor services and ship assist/tanker escort offerings with a similar long-tenured operating model and oil & gas tanker focus.
• Tidewater Inc. Publicly traded global operator of offshore support vessels serving the oil & gas industry. Comparable to Foss's offshore support and marine transportation services for major oil companies, though Tidewater operates more exclusively in OSV markets.
• Svitzer: Global tug and harbor services operator owned by Maersk, with the world's largest tug fleet. Comparable to Foss as a global harbor towage and ship assist provider with a stated focus on decarbonizing vessel operations and serving energy customers.
• Edison Chouest Offshore: Privately held operator of offshore support vessels (PSVs, AHTS) and a growing harbor services fleet. Comparable to Foss for its offshore marine support work for major oil companies (Shell, ExxonMobil) and its hybrid/alternative-fuel vessel investments.

Others

• Saltchuk Marine (Parent): Parent holding company of Foss Maritime, encompassing TOTE Maritime, Tropical Shipping, Carlile, Northern Air Cargo, and others. Relevant as the corporate parent that bundles cross-modal maritime and logistics capabilities around Foss's harbor and transportation operations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/foss-maritime-company

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries4 records

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 Foss Maritime