What UniSea, Inc. does

UniSea, Inc. is a privately held U.S. seafood processing company and a subsidiary of Japan-based Nissui Corporation, founded in 1974 and headquartered in Redmond, Washington with primary operations in Unalaska/Dutch Harbor, Alaska. The company is described as Alaska's largest seasonal seafood employer, processing catch from the Dutch Harbor area — one of the largest seafood processing hubs in North America — into finished seafood products for B2B distribution channels. UniSea employs between 1,001 and 5,000 people, with headcount reflecting the seasonal nature of Alaska's groundfish and crab processing seasons.

UniSea's core technology centers on integrated sustainable energy systems rather than conventional processing alone. The company operates a closed-loop fuel system that converts fish oil produced from processing byproducts into fuel for facility operations, creating a circular resource economy within the plant. In September 2025, UniSea deployed Alaska's first Waste Heat to Power (WHP) system in the seafood industry through a core strategic partnership with Texas-based ICE Thermal Harvesting. The WHP system captures waste heat from existing diesel generators to produce clean electricity without carbon emissions, generating 67 megawatt-hours during its three-week start-up phase and projected to offset approximately 3,500 gallons of diesel weekly during processing seasons.

UniSea generates revenue by processing and selling finished seafood products on a B2B basis, with no consumer-facing brand or direct-to-channel pricing publicly disclosed. As a wholly-owned subsidiary of Nissui Corporation, the company is integrated into a large Japanese seafood conglomerate, and its processed output is distributed through conventional seafood channels. The customer base is not publicly detailed, and the company does not disclose pricing. The 2025 WHP deployment and closed-loop fuel system represent the company's primary commercial differentiators, positioning UniSea on a cost-advantage and sustainability thesis in a commodity processing industry.

Name

UniSea, Inc.

Legal name

UniSea, Inc.

Website

https://unisea.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

UniSea, Inc. is Alaska's largest seasonal seafood employer, processing catch from Dutch Harbor into finished seafood products for B2B buyers. A subsidiary of Japan's Nissui Corporation, it operates integrated sustainable energy systems including a closed-loop fuel system and a Waste Heat to Power system.

Ownership category

akta.pro rank

Product category

Seafood Processing

NAICS

Seafood Product Preparation and Packaging (31171)

SIC

Prepared Fresh Or Frozen Fish & Seafoods (2092)

akta.pro primary industry

Primary Seafood Processing (Heading/Gutting/Deheading; Icing) (AFANADAA)

akta.pro secondary industries

Seafood By-Products & Fishmeal/Fish Oil Processing (Rendering, Hydrolysates, Collagen) (AFANADAJ), Frozen Seafood Meals & Value-Added Seafood (CRADADAG)

Keywords

• Seafood processing
• Sustainable seafood
• Fish oil products
• Dutch Harbor operations
• Waste heat recovery

Headquarters

HQ city

Redmond

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Seafood Processing and Products: UniSea operates as a seafood processing company, processing catch from fishing operations in the Dutch Harbor area and converting byproducts into value-added products including fish oil for fuel reuse.

Core offering

UniSea processes seafood caught from fishing operations in the Dutch Harbor, Alaska area, converting raw catch and processing byproducts into finished seafood products and value-added outputs such as fish oil. The company also operates proprietary sustainable energy systems — a closed-loop fuel system that converts fish oil byproducts into operational fuel, and Alaska's first Waste Heat to Power system that captures heat from diesel generators to produce clean electricity.

Product overview

UniSea, Inc. is Alaska's largest seasonal seafood employer operating from Dutch Harbor, and is a subsidiary of Japan-based Nissui Corporation. The company operates seafood processing facilities with notable sustainability infrastructure including a closed-loop fuel system that converts fish oil produced from processing byproducts, and the newly deployed Waste Heat to Power system that captures waste heat from diesel generators to generate clean electricity.

Differentiator

Problem solved

Functional benefit

Products and services

• Processed Seafood Products Finished seafood products processed from catch sourced from fishing operations in the Dutch Harbor area, including value-added products derived from processing byproducts such as fish oil. Sold as a B2B processor to commercial seafood buyers and distributors.
• Waste Heat to Power (WHP) System First Waste Heat to Power system deployed in Alaska's seafood industry, capturing waste heat from existing diesel generators to produce clean electricity without carbon emissions. Generated 67 megawatt-hours in its three-week start-up phase and projected to offset approximately 3,500 gallons of diesel weekly during processing seasons. Deployed through a partnership with ICE Thermal Harvesting.
• Closed-Loop Fuel System Operates a closed-loop fuel system that converts fish oil produced from seafood processing byproducts into fuel for UniSea's own operations, creating a circular resource economy within the processing facility.

Quantifiable outcome

• 67 megawatt-hours generated in three-week start-up phase of WHP system
• +1 more outcomes

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

One partnership is on record.

• ICE Thermal HarvestingcoreTechnology or Integration · 4 September 2025Partnership with Texas-based ICE Thermal Harvesting to deploy Alaska's first Waste Heat to Power system in the seafood industry. The system captures heat from existing diesel generators to produce clean electricity without carbon emissions. This represents a significant decarbonization initiative for UniSea's seafood processing operations.

Scale indicators2 records

Recent moves3 records

Expansion highlights4 records

Broad incumbents

• Maruha Nichiro Corporation: Maruha Nichiro is one of the largest seafood companies globally with extensive North Pacific and global operations including Alaska processing. Comparable as a Japanese-headquartered seafood major operating in similar species and geographies.
• Thai Union Group: Thai Union is a global seafood processor and brand owner (Chicken of the Sea, Bumble Bee) with extensive North American and Asian operations. Comparable as a large-scale value-added seafood processor with B2B and B2C channels.

Direct peers

• Pacific Seafood: Pacific Seafood is a vertically integrated West Coast seafood company with processing, distribution, and retail operations. Comparable as a major North American seafood processor with multi-species capabilities serving both retail and foodservice channels.
• Icicle Seafoods: Icicle Seafoods operates processing facilities across Alaska and the Pacific Northwest, with focus on salmon, pollock, and other North Pacific species. Comparable as a mid-to-large scale Alaska seafood processor with similar species focus and B2B go-to-market.
• Silver Bay Seafoods: Silver Bay Seafoods is an Alaska-based seafood processor with facilities in multiple Alaskan communities focused on salmon and pollock. Directly comparable as an Alaska seafood processor serving B2B markets with similar operational and seasonal employment dynamics.
• Trident Seafoods: Trident Seafoods is one of the largest vertically integrated seafood companies in North America with major processing operations in Alaska, including Dutch Harbor and other Bering Sea/Aleutian facilities. Directly comparable as a large-scale Alaska-based seafood processor serving similar B2B customers.
• High Liner Foods: High Liner Foods is a North American value-added frozen seafood processor and brand owner serving retail and foodservice customers. Comparable as a value-added seafood processor focused on converting raw seafood into packaged consumer and foodservice products.
• Ocean Beauty Seafoods: Ocean Beauty Seafoods operates multiple processing facilities across Alaska and the Pacific Northwest, with significant presence in Dutch Harbor. A direct competitor in Alaska seafood processing with similar species mix (salmon, pollock, crab) and B2B customer orientation.

Others

• Alaska Seafood Marketing Institute: Industry/marketing body for Alaska seafood, relevant as a peer ecosystem participant that shapes demand dynamics and sustainability positioning for Alaska seafood processors including UniSea.
• Nissui Corporation: UniSea's parent company and one of Japan's largest seafood conglomerates with global operations. Relevant as the strategic owner providing distribution, capital, and product portfolio synergies for UniSea's processed seafood output.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights2 records

Customer concentration

• Xx.com/uniseainc

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 UniSea, Inc.