SEA.O.G Offshore

Name

SEA.O.G Offshore

Legal name

SEA.O.G Offshore LLC

Website

https://seaofgravity.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Marine Logistics & Heavy Transport Services

NAICS

Support Activities for Water Transportation (4883), Marine Cargo Handling (48832), Port and Harbor Operations (488310)

SIC

Water Transportation (4400), Oil & Gas Field Services, Nec (1389)

akta.pro primary industry

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

akta.pro secondary industries

Offshore/Remote Port Call & Anchorage Services (Launch Boats, Crew Boats, Supply Runs) (TLAHAJAM), Marine & Offshore Energy O&M (Offshore Wind, Platforms, Subsea Assets) (EUAEAGAO), Marine Terminals & Cargo Handling Infrastructure (RoRo, Bulk, Container) (IMAFAJAF), Cargo Handling & Lifting Equipment (Cranes, Derricks, Hoists) (IMAJAIAB)

Keywords

• Marine engineering services
• Heavy transport logistics
• Barge transportation services
• Port agency services
• Offshore marine logistics

Headquarters

HQ city

Seattle

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Marine Engineering Services: Professional engineering services including stability analyses, mooring analyses, ballasting plans, Ro-Ro operations, float-over operations, bollard pull calculations, transport analyses, and dynamic lift analyses. Billed as professional services with project-based pricing.
2. Heavy Transport and Barge Services: Tug and barge transport, port/terminal operations, chartering, and marine asset management. Revenue generated through vessel charters, asset rental, and transport fees.
3. Port Agency Services: 24/7 vessel agency services including field representatives, pilotage, stevedoring, bunker arrangements, customs brokerage, and compliance services across US Gulf and Northeast ports.
4. Offshore Marine Logistics: Project planning, budgeting, vendor coordination, and OCS compliance management for offshore operations.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

SEA.O.G Offshore provides engineered marine transport and heavy lift services for project cargo, combining owned tug-and-barge fleet operations with class-approved engineering, 24/7 port agency, and offshore logistics coordination. Offerings span feasibility studies, stowage and seafastening engineering, tug/barge chartering, port agent services across US Gulf and Northeast ports, OCS/Jones Act compliance, and turnkey execution for wind energy, oil and gas, LNG, and modular construction projects.

Product overview

SEA.O.G Offshore is a marine logistics and heavy transport company offering an integrated suite of services for the maritime industry. The company operates a fleet of owned marine assets (tow vessels MV Troy Bernier with 2600 HP and MV Henry Brooks with 2000 HP, both equipped with RiverLens technology; OG54 inland deck barges; and OG72 ABS deck barges) combined with engineering and logistics services. The portfolio includes Transportation and Heavy Lift Engineering, Port Services, Marine Engineering, Heavy Transport, Crew Services, Consultancy, Trade Compliance, Visual Engineering, and Offshore Marine Logistics. Services range from initial feasibility studies and conceptual planning through detailed engineering, execution, and post-move support. The company specializes in project cargo for wind energy, oil and gas, modular construction, and industrial plant projects, providing turnkey solutions from Brownsville, Texas to various inland destinations via the Mississippi River system and U.S. Gulf and Northeast ports.

Differentiator

Problem solved

Functional benefit

Brands

• RiverLens™: Towing technology developed and deployed by SEA.O.G for inland waterway navigation, notably enabling first single boat tandem tow of wind turbine blades on the US waterway system.

Products and services

• Heavy Transport (Tug and Barge) Marine transportation services including tug and barge transport, port and terminal operations, chartering, marine asset management, and project management for heavy and oversized cargo on US inland and coastal waterways.
• Transportation and Heavy Lift Engineering Engineering services including stow plans, deck layouts, seafastening and lashing calculations, deck strength and load spreading, grillage and sea fastening design, heavy lift engineering, rigging design and lift plans, and method statements for marine transport operations.
• Marine Engineering Analysis Engineering analysis services including motion and workability analyses, stability and mooring analyses, ballasting plans, Ro-Ro operations, float-over operations, bollard pull calculations, transport analyses, and dynamic lift analyses.
• US Port Agent Services 24/7 port agency and logistics support across US Gulf and Northeast ports, including field representatives, pilotage, stevedoring, bunker and fuel arrangements, site supervision, waste management, local purchasing and trucking, warehouse and yard management, and mobilization/demobilization support.
• Offshore Marine Logistics High-stakes offshore logistics services including project planning and budgeting, vendor coordination, operational oversight, and OCS compliance management for offshore construction, oil and gas, and complex vessel operations.
• Barge Transportation for EPC Contractors Specialized barge transport services for EPC contractors including strategic input during project development, conceptual logistics planning, permit acquisition, asset reservation, end-to-end logistics execution, and post-move support.
• Barge Services Integrated barge services including barge rentals, feasibility studies, route access assessments, marine terminal planning, and hybrid land-sea solutions with pop-up ports and temporary marine offload facilities.
• Trade Compliance Services Customs and regulatory compliance services including eAPIS submission, eNOA/D filings, vessel and helicopter clearance, customs brokerage, bonded storage and transportation, Ocean and Air AMS, and CBP/USCG compliance.
• Crew Services Personnel and logistics support including visa support, M&G and transfer services, crew transportation, accommodation, medical services, and local labor and payroll services.
• Marine Logistics Consultancy

Quantifiable outcome

• 91% of vessels cleared ahead of schedule
• +3 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• American Offshore ServicescoreStrategic or Co-development Partner · 1 January 2018SEA.O.G helped develop and launch American Offshore Services, a Jones Act compliant Crew Transfer Vessel startup. SEA.O.G provided concept, design, startup services, raised $70m credit facility for newbuild program, negotiated shipyard contracts, recruited and trained independent management team, and built commercial pipeline. Exited in 2023.
• Vineyard WindcoreStrategic or Co-development PartnerLong-term partnership providing MWS/site supervision, marine agency and support logistics, port captain services, and shoreline marine terminal development for Vineyard Wind offshore wind project in New Bedford, MA. 70 inbound vessels, 434 total components managed.
• GE Renewable EnergycoreStrategic or Co-development PartnerAppointed as OEM-appointed MWS (Marine Warranty Surveyor) overseeing discharge and handling of GE Haliade X turbine components for US offshore wind projects.
• CMA CGMminorImplementation/ SI/ Consulting PartnerTechnical support partnership providing 300+ method statements for lifting, stowage and securing of project cargoes. 350 engineering scopes expected for 2024.

Scale indicators9 records

Recent moves6 records

Expansion highlights3 records

Broad incumbents

• Crowley Maritime: Largest US-owned marine solutions provider with tug/barge, offshore wind logistics (Jones Act CTVs), and engineering services. Overlaps directly with SEA.O.G on project cargo and port agency work, but operates at materially greater scale across many segments.
• Edison Chouest Offshore: Major offshore vessel operator with platform/OSV fleet and growing offshore wind service capability. Competes with SEA.O.G for marine logistics scope on US offshore wind projects while running a much broader offshore portfolio.
• Foss Maritime: Tug and barge operator with Pacific and Gulf presence plus heavy-lift/transport services. Most direct overlap with SEA.O.G's tow-and-barge heavy transport on US coastwise/inland routes.
• Moran Towing Corporation: Coastwise tug and barge operator with marine salvage and heavy-lift capabilities. Comparable asset base and operating footprint to SEA.O.G's fleet, plus broader salvage/recovery services.

Direct peers

• McDonough Marine Service: Inland marine transportation specialist operating a barge fleet for project and bulk cargo on US rivers. Competes with SEA.O.G on inland tug/barge work for industrial and energy project cargo.
• Crescent Towing & Salvage: Gulf-based tug/barge and salvage operator offering harbor towing and offshore support. Direct competitor on Gulf coast tow work and vessel agency scope that SEA.O.G provides.
• Brix Marine: Tug and barge operator focused on the US Gulf and inland waterways, with project heavy-lift capability. Closest asset and route overlap with SEA.O.G's inland barge/tow business.
• Blessey Marine Service: Operator of ocean and inland tugs and tank barges serving Gulf shippers. Useful comparable for fleet economics and US-flag vessel deployment that SEA.O.G depends on for Jones Act compliance.
• BBC Chartering: Global project cargo and heavy-lift ocean carrier with multipurpose tweendeck fleet. Most direct comparable for SEA.O.G's heavy-lift/project cargo engineering and breakbulk vessel work, though without the inland barge leg.

Regional players

• Royal Wagenborg: Netherlands-headquartered multipurpose/heavy-lift shipping and logistics operator with offshore wind project cargo experience in Europe. Comparable business model and engineering-led heavy-transport approach; territorial rather than direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/seaofgravity

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 SEA.O.G Offshore