Uist Asco

What Uist Asco does

Uist Asco is a Scottish seaweed harvesting and processing company headquartered at Crogarry Beag Quarry, Clachan Sands, Isle of North Uist, in the Outer Hebrides. Founded in 2012 by Raghnall Maclain and his family, the company was acquired in 2017 by Canadian seaweed operator Acadian Seaplants Limited, under whose ownership it has operated since as a wholly-owned subsidiary. Uist Asco specializes in the sustainable procurement and processing of a single species, Ascophyllum nodosum (knotted wrack), a brown seaweed native to the North Atlantic intertidal zone, sourcing it via traditional hand-harvesting and a proprietary boat-and-rake method co-developed with its parent, then drying it using RHI-compliant woodchip-fired renewable heat rather than fossil fuels. The processing facility has been drying seaweeds since 2014 and commercial harvesting operations commenced in 2017.

The company's product offering is a single bulk ingredient, dried Ascophyllum nodosum, which is positioned across three end-use applications: animal feed and nutrition (livestock, pets, show animals), agricultural soil conditioners, and nutraceutical ingredients. End-customer signals cited include European golf courses using the seaweed for turf nutrition and UAE racing camel operations using it as premium feed, with global distribution enabled primarily through Acadian Seaplants' network. The company holds FEMAS-57630, Soil Association organic, EU, and Renewable Heat Incentive compliance certifications, and maintains a Resource Science team that conducts transect-based biomass assessments, drone and digital-app spatial data collection, and multi-species habitat monitoring (including seal haul-outs and bird habitats) with seasonal or permanent no-take zones.

Uist Asco employs approximately 9 full-time staff plus 16 independent harvesters (2021 data) and operates a direct B2B and B2C go-to-market model, selling processed dried seaweed to enterprise ingredient buyers and end consumers globally. Revenue is generated through one-time product sales of dried seaweed, with independent Harvesters compensated for raw material supply. The company has deep local roots in the Outer Hebrides through community employment, beach cleanups, school engagement, and partnerships with Nature Scot, Highlands and Islands Enterprise, and Comhairle nan Eilean Siar.

Name

Uist Asco

Legal name

Uist Asco Ltd.

Website

https://uistasco.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

1–10 employees

Short description

Uist Asco is a Scottish seaweed company in the Outer Hebrides that sustainably harvests and processes Ascophyllum nodosum (knotted wrack) for sale as a bulk ingredient to animal feed, agricultural, and nutraceutical buyers globally via its parent Acadian Seaplants.

Ownership category

akta.pro rank

Product category

Seaweed Ingredient Manufacturing

NAICS

Aquaculture (1125), Aquaculture (11251)

SIC

Fishing, Hunting And Trapping (900), Agricultural Production-Crops (100)

akta.pro primary industry

Seaweed & Algae Aquaculture (incl. microalgae) (AFAEAAAE)

akta.pro secondary industry

Organic & Regenerative Fertility Inputs (Manures, Plant/Animal Meals, Fish/Seaweed) (AFABAKAE)

Keywords

• Seaweed harvesting
• Brown algae processing
• Organic seaweed ingredients
• Animal feed supplements
• Soil conditioners

Headquarters

HQ city

Clachan

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Seaweed Product Sales: Uist Asco harvests and processes Ascophyllum nodosum into dried seaweed products sold to businesses and consumers. Products include animal feed supplements, soil conditioners/fertilizers, and nutraceutical ingredients supplied globally. Revenue is generated through the sale of processed seaweed, with independent Harvesters compensated for raw material supply.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Uist Asco sustainably harvests and processes Ascophyllum nodosum (knotted wrack) brown seaweed from the intertidal zone of the Outer Hebrides in Scotland. The company uses hand-harvesting and a boat-and-rake method, then dries the seaweed using RHI-compliant woodchip-fired renewable heat. The processed dried seaweed is sold as a bulk ingredient for use in animal feed supplements, soil conditioners/fertilizers, and nutraceutical ingredients supplied globally.

Product overview

Uist Asco is a Scottish seaweed harvesting and processing company that operates as a single-product bulk ingredient supplier. The company's core offering is sustainably harvested and dried Ascophyllum nodosum (knotted wrack), a brown seaweed species. This raw seaweed material is then distributed to various industries including animal feed manufacturers, agricultural soil conditioner producers, and nutraceutical companies. The product portfolio represents a unified seaweed ingredient offering with multiple application categories rather than distinct branded products.

Differentiator

Problem solved

Functional benefit

Products and services

• Dried Ascophyllum Nodosum Seaweed Sustainably harvested and processed brown seaweed (Ascophyllum nodosum) sold as a raw material ingredient for use in animal feed supplements, soil conditioners, and nutraceutical applications.
• Seaweed Animal Feed Supplements Organic feed supplements derived from Scottish Ascophyllum nodosum, supplying essential vitamins and minerals for livestock, pets, and show animals to improve wellbeing, stamina, and immune system health.
• Seaweed Soil Conditioners Dried seaweed soil conditioning products that enrich fields and crops with vitamins and minerals needed for plant germination and growth.
• Seaweed Nutraceutical Ingredients Nutraceutical ingredients derived from Scottish knotted wrack that provide natural sources of health-promoting nutrients for human dietary supplement manufacturers.

Quantifiable outcome

• 50% more energy efficient dryer being implemented to reduce energy consumption
• +1 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Acadian Seaplants LimitedcoreOthers · 1 January 2017Acadian Seaplants Limited acquired Uist Asco in 2017, investing in upgrading the seaweed processing plant and developing harvesting infrastructure. As parent company, Acadian Seaplants provides global distribution network, operational expertise, and capital for growth. The acquisition enabled expansion from 3 workers and 1 part-time harvester to a significant local employer.
• Nature ScotcoreStrategic or Co-development PartnerUist Asco's Resource Science team maintains communication with Nature Scot (Scotland's nature agency) to ensure sustainability goals are met and to share in the work of conservation. Nature Scot is the government body for Scotland's natural environment.
• Highlands and Islands Enterprise (HIE)minorOthersHIE is working with Comhairle nan Eilean Siar to support people who want to make life in the Outer Hebrides possible. HIE and CnES have established settlement officer posts to assist people relocating to the region.
• Comhairle nan Eilean Siar (CnES)minorOthersThe local council for the Outer Hebrides. Uist Asco works with CnES on community development initiatives and infrastructure improvements, including repairs to the fisherman's wharf in Lochmaddy.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Acadian Seaplants: Acadian Seaplants is the parent company of Uist Asco and the world's largest independent marine plant processing company, harvesting and processing Ascophyllum and other seaweeds globally. Direct overlap in Ascophyllum processing and end-markets (animal feed, crop nutrition, nutraceuticals), with Uist Asco functioning as its Scottish harvesting/processing arm.
• Algea (Valagro / Syngenta Biologicals): Algea (now part of Syngenta Biologicals via Valagro) is a global producer of Ascophyllum nodosum-based biostimulants and crop nutrition ingredients. Closest large-scale incumbent competitor to Uist Asco in the seaweed-based soil conditioner/crop input segment.

Direct peers

• Mara Seaweed: Mara Seaweed is a Scottish-based seaweed company that harvests and brands edible and ingredient seaweed products from UK waters. Comparable to Uist Asco in raw material geography (UK seaweed) and downstream positioning in food/ingredient markets, though Mara is more brand-led and consumer-facing.
• Hebridean Seaweed Company: Hebridean Seaweed Company harvests and supplies Scottish seaweed (including Ascophyllum) for agricultural, horticultural, and animal nutrition uses from the Outer Hebrides. Direct geographic and product overlap with Uist Asco in wild Scottish seaweed ingredient supply.
• Arramara Teo: Arramara Teo is the Irish sister operation of Uist Asco under Acadian Seaplants, harvesting and processing wild seaweed from the Connemara coast. Nearly identical business model (wild Ascophyllum harvest, drying, ingredient supply to animal feed/agri/nutraceutical markets) and serves as Uist Asco's closest functional peer.
• Ocean Harvest Technology: Ocean Harvest Technology is an Irish animal nutrition company that formulates seaweed-based feed ingredients (including Ascophyllum nodosum) for the global livestock and pet feed markets. Closely comparable to Uist Asco's animal feed segment in raw material and target end-market.
• Cornish Seaweed: Cornish Seaweed harvests wild UK seaweed (primarily from Cornwall) for culinary, supplement, and agricultural applications. Comparable to Uist Asco in wild-harvest British seaweed ingredient supply and downstream markets.
• Seagreens: Seagreens is a UK-based company that sustainably wild-harvests and supplies multiple seaweed species (including Ascophyllum) for human nutrition, food, and agricultural applications. Comparable business model and product categories to Uist Asco, with similar certifications focus.

Emerging players

• AtSea Nova: AtSea Nova is a Belgian aquaculture company producing cultivated kelp (including Laminaria and Saccharina species) for food and animal feed markets. Comparable to Uist Asco in delivering seaweed-based feed/agri ingredients but with a cultivated rather than wild-harvest model.
• Cascadia Seaweed: Cascadia Seaweed is a Canadian cultivated-seaweed company producing kelp and other species for food, animal feed, and agri-input markets. Represents the cultivated counterpart to Uist Asco's wild-harvest model, competing for the same end-markets with potentially more scalable supply.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/uist-asco-ltd

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Uist Asco