Soilworx Natural Fertilisers

What Soilworx Natural Fertilisers does

Soilworx Natural Fertilisers (legal entity: Silent Valley Fertiliser Ltd) manufactures pelletised organic and organo-mineral fertilisers from UK-sourced raw materials including poultry manure, feather meal, bone meal, and seaweed. The company operates from a single facility at 22B Ryan Road, Mayobridge, Newry, Co. Down, which it describes as the largest organic fertiliser plant in the UK and Ireland, with stated capacity exceeding 50,000 tonnes per year (up to 500 tonnes per week) following cumulative investment of more than £15 million since 2012. The fully automated production line applies heat treatment above 70°C (typically exceeding 115°C) to eliminate pathogens such as E. coli and Salmonella and destroy weed seeds, before pelletising to a consistent 3–5mm diameter with a hardness rating of 9/10. The process is integrated into a circular system that also generates biogas, extracts CO2, produces biodiesel, and uses solar energy.

The product portfolio is organised into three segments: Agricultural (Dynamo 4-2-3, K-Boost 3-2-17, N-Boost 8-2-2, Feather Meal 13-0-0, Sulphate of Potash, Liquid N), Amenity for sports turf and grounds (Dynamo Sport 10-1-10, Dynamo Pro Grass 6-10-2), and Retail for the home-and-garden market (Chicken Manure Pellets, Seaweed Poultry Manure, Manure Blood and Bone Pellets, Organic Bone Meal). Custom Manufacturing and white-label services are offered to other fertiliser brands and distributors. Soilworx holds OMRI Listed and Organic Trust certifications, enabling use in USDA, EU, and UK certified organic production systems.

Revenue is generated through one-time sales across four streams: agricultural fertiliser sales (direct and via agricultural merchants in 10kg to 1-tonne bulk bags and bulk tipped loads), amenity fertiliser sales to sports clubs, local authorities, and golf courses, retail/garden product sales through 255+ garden centres and merchants across the UK and Ireland, and contract manufacturing/white-label services. The go-to-market combines a multi-tier distribution model (agricultural merchants, garden centres, agronomy partners including Agrii, Drummonds, Aurivo, Quinns of Baltinglass, and Fruit Hill Farm), direct enterprise field sales, and content-led demand generation through the website, trade shows (Cereals, Groundswell), and social channels. The company is privately held within College Group, a family-owned group with 40+ years of rendering and organic processing expertise, and is currently expanding capacity from 20,000 tonnes to a planned 75,000 tonnes annually while extending sales into mainland UK and global markets from 2025.

Name

Soilworx Natural Fertilisers

Legal name

Silent Valley Fertiliser Ltd

Website

https://soilworx.ie

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

11–50 employees

Short description

Soilworx Natural Fertilisers manufactures pelletised organic and organo-mineral fertilisers from poultry manure and other by-products at the UK and Ireland's largest organic fertiliser plant, supplying arable farmers, potato growers, sports turf managers, and home gardeners via a 255-plus stockist network.

Ownership category

akta.pro rank

Product category

Organic Fertilisers

NAICS

Fertilizer and Compost Manufacturing (32531), Fertilizer (Mixing Only) Manufacturing (325314), Nitrogenous Fertilizer Manufacturing (325311)

SIC

Agricultural Chemicals (2870), Wholesale-Farm Product Raw Materials (5150)

akta.pro primary industry

Manure-Based & Digestate Soil Amendments (AFABADAF)

akta.pro secondary industries

Organic & Bio-based Fertilizers (Manure/Compost/Biochar) (IMAEAEAF), Turf & Ornamental Specialty Fertilizers (Golf, Sports Turf, Landscaping) (AFABACAM)

Keywords

• Organic fertiliser pellets
• Agricultural crop nutrition
• Amenity turf fertilisers
• Soil conditioning products
• Natural fertiliser manufacturing

Headquarters

HQ city

Newry

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Agricultural Fertiliser Sales: Sale of organic and organo-mineral fertilisers for arable, potato, grassland, fruit and horticultural crops. Products supplied direct to farmers and through agricultural merchants in bags from 10kg to 1-tonne bulk bags, and in bulk tipped loads for large-volume requirements.
2. Amenity Fertiliser Sales: Sale of specialist fertilisers for sports turf, golf courses, parks, landscaping and grounds maintenance. Sold to professional turf managers, sports clubs, local authorities, golf courses and amenity professionals.
3. Retail/Garden Product Sales: Sale of home and garden fertiliser products through garden centres and agricultural merchants across the UK and Ireland. Products include chicken manure pellets, seaweed poultry manure, manure blood and bone pellets, and bone meal.
4. Custom Manufacturing and White-Label: Bespoke fertiliser and crop nutrition blends tailored to exact NPK specification, contract manufacturing, white-label production and co-packing services. Operated by the commercial team with flexible pack sizes from 5kg retail bags to bulk loads. Includes OMRI and Organic Trust certified custom formulations.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels6 records

Core offering

SoilWorx manufactures pelletised organic and organo-mineral fertilisers from UK-sourced poultry manure, feather meal, bone meal and seaweed at the UK and Ireland's largest organic fertiliser plant. The portfolio serves three segments: agricultural fertilisers for arable, potato, grassland, fruit and horticultural crops; amenity fertilisers for sports turf, golf courses and grounds maintenance; and retail home-and-garden products, supplemented by custom NPK blending and white-label manufacturing services.

Product overview

SoilWorx is an organic fertiliser company offering a unified product portfolio centred on pelletised organic and organo-mineral fertilisers manufactured from UK-sourced materials including poultry manure, feather meal, bone meal and seaweed. The portfolio spans three core market segments: Agricultural Fertilisers (Dynamo 4-2-3, K-Boost 3-2-17, N-Boost 8-2-2, Feather Meal 13-0-0, Sulphate of Potash, Liquid N), Amenity Fertilisers (Dynamo Sport 10-1-10, Dynamo Pro Grass 6-10-2), and Retail fertilisers for home gardens (Chicken Manure Pellets, Seaweed Poultry Manure, Manure Blood and Bone Pellets, Organic Bone Meal). All products share the same manufacturing foundation: UK-sourced organic raw materials, heat treatment above 70°C, pelletisation to a consistent 3–5mm size, and rigorous independent quality testing. The company also offers Custom Manufacturing services for bespoke NPK blends and white-label production.

Differentiator

Problem solved

Functional benefit

Products and services

• Dynamo 4-2-3 Organic Fertiliser

Quantifiable outcome

• 461% increase in organic carbon in Rothamsted Research field trials
• +4 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

Feature5 records

Partnerships

Seven partnerships are on record, tiered core.

• Rothamsted ResearchcoreStrategic or Co-development Partner · 1 January 2019Active research partnership with Rothamsted Research, the world's oldest agricultural research institution with over 180 years of continuous soil and crop research. Conducts split-field trials at farm scale across UK and Ireland, producing peer-reviewed fertiliser trial results. Informs product development and formulation refinements.
• AgriicoreChannel Partner/ Reseller/ DistributorKey agronomy partner distributing SoilWorx products and providing advice to growers. Working through partners to speed up product development with real-time feedback from the farm gate.
• DrummondscoreChannel Partner/ Reseller/ DistributorKey distribution and agronomy partner operating in Ireland, connecting SoilWorx with Irish growers for crop nutrition advice and product supply.
• AurivocoreChannel Partner/ Reseller/ DistributorKey distribution and agronomy partner operating in Ireland, providing SoilWorx product access and agronomic guidance to growers.
• Quinns of BaltinglasscoreChannel Partner/ Reseller/ DistributorKey distribution partner in Ireland connecting SoilWorx with vegetable and arable growers. Supports grower network with product access and technical guidance.
• Fruit Hill FarmcoreChannel Partner/ Reseller/ DistributorIrish organic distributor using Dynamo, K-boost and N-boost products. Provides feedback on product performance and distributes to organic farming community.
• College Group (Parent Company)coreOthersParent company providing strategic direction, financial backing, and 40+ years of rendering and organic processing expertise. Engineering capability through College Group enables rapid response to market challenges with continued investment in research, new product ranges and capacity expansion.

Scale indicators10 records

Recent moves8 records

Expansion highlights4 records

Direct peers

• Olmix: Olmix produces organic soil amendments, plant biostimulants and animal nutrition products from algae and other natural sources, with a focus on soil health and regenerative agriculture. The seaweed/poultry manure blend at SoilWorx and Olmix's algae-based soil products address similar end-markets (potato growers, arable farmers, soil health programs) in Europe.
• Italpollina: Italpollina is one of Europe's largest manufacturers of organic fertilisers and biostimulants, producing pelleted and granular organic NPK products from animal and plant residues. It is the closest direct competitor to SoilWorx in the European organic/biological fertiliser space, serving similar agricultural and amenity segments.
• Lebanon Seaboard (LebanonTurf): Lebanon Seaboard's LebanonTurf division produces professional turf and amenity fertilisers, including organic-based and slow-release products for golf courses, sports fields and grounds. Its Dynamo-branded product line is a direct competitor to SoilWorx's Dynamo Sport amenity range in the UK and European turf market.
• Suståne Natural Fertilizer: Suståne manufactures granulated and pelletised organic fertilisers from composted turkey litter and other natural feedstocks, with OMRI-listed products sold into agricultural and turf markets. It is a direct US-based peer in the pelletised organic fertiliser category, with comparable certifications and end-markets including professional turf.

Broad incumbents

• Yara International: Yara is the world's largest mineral nitrogen fertiliser producer and a major supplier of crop nutrition solutions globally. SoilWorx's Sales Director Dr Paul O'Hora was previously at Yara, and Yara represents the broad incumbent against which SoilWorx's organic alternative competes in the European fertiliser market.
• ICL Group: ICL is a global specialty fertiliser and plant nutrition company producing potash, phosphate, and specialty plant nutrition products. It operates broadly in the same crop nutrition category as SoilWorx, particularly in the UK and European markets where both serve professional growers and amenity customers.
• Compo Expert: Compo Expert is a European specialty fertiliser company producing controlled-release, slow-release and organic-based fertilisers for professional horticulture, turf and agriculture. Its slow-release and organo-mineral product lines overlap with SoilWorx's amenity and speciality agricultural offerings in the UK and continental European markets.
• Haifa Group: Haifa Group is a global specialty fertiliser company producing potash-based, water-soluble and controlled-release fertilisers for agriculture, horticulture and turf. Its specialty plant nutrition range competes with SoilWorx's high-K potato fertiliser and amenity products in the European professional market.
• Timac Agro: Timac Agro is a Roullier Group subsidiary producing organo-mineral and specialty fertilisers for arable, grassland and amenity markets across Europe. Their hybrid organic/mineral pelletised products overlap directly with SoilWorx's K-Boost and N-Boost SKUs in European crop nutrition.

Emerging players

• Multikraft: Multikraft produces organic fertilisers, soil conditioners and microbial crop inputs from natural fermentation processes, with a focus on regenerative agriculture in the DACH and broader European markets. It is an emerging organic fertiliser/biostimulant peer overlapping with SoilWorx's natural input positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/soilworxfert
• YouTubeyoutube.com/@SoilWorx-IE
• Facebookfacebook.com/SoilWorxNaturalFertiliser
• LinkedInlinkedin.com/company/soilworx-natural-fertilisers
• Instagraminstagram.com/soilworxfertiliser
• TikToktiktok.com/@soilworx.natural

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Soilworx Natural Fertilisers