What Erosion Control does

Erosion Control Co Limited is a privately held New Zealand environmental stabilisation contractor founded in 1975–76, headquartered in Dairy Flat, Auckland, with a regional office in Hamilton, Frankton. The company supplies erosion management, hydroseeding, hydromulching, water treatment, and re-vegetation solutions to civil contractors, infrastructure developers, local councils, quarry operators, and forestry operations across the North Island. Its service portfolio spans Chemical Treatment Management Plans, MSE wall installation, native planting, straw mulching, tractor grassing, water quality monitoring, and overland flow intervention.

The company's technology stack combines chemical treatment (coagulants, flocculants including a chitosan-based EcoSuperfloc co-developed with Vital Industries), mechanical separation (Lamella Plate Clarifiers/Silt Stopper, sediment pond decant systems), and vegetative establishment (hydroseeding units, proprietary hydromulches). Three flagship trademarked proprietary brands anchor the offering: FlocBox™ (a GD05-aligned sediment dosing system, IECA award-winner in 2016), HydroHay™ (sterile hay-fibre hydromulch), and Liquid Soil™ (premium hydroseeding medium for poor soils). Supporting equipment includes Ground Protection Mats (launched September 2024, recyclable MHDPE), a Solar-powered turbidity/pH Water Quality Monitoring System, and an automated pH Correction Device. The portfolio is sold or hired alongside full-service contracting delivery.

Erosion Control generates revenue through four streams: one-time product sales (FlocBox units in 75L/200L/400L sizes, erosion fabrics, geofabrics, straw wattles, polymers), recurring equipment hire (Ground Protection Mats and Silt Stopper clarifiers), professional services (CTMPs, consultation, monitoring, training), and turnkey environmental contracting (hydroseeding, mulching, native planting). Go-to-market is direct enterprise field sales with named regional account managers and no disclosed channel partners; pricing is quote-based and not publicly disclosed.

Name

Erosion Control

Legal name

Erosion Control Co Limited

Website

https://erosioncontrol.co.nz

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

11–50 employees

Short description

Erosion Control Co Limited is a privately held New Zealand environmental stabilisation contractor that supplies hydroseeding, hydromulching, sediment control, water treatment and re-vegetation solutions to civil contractors, infrastructure developers, councils and quarries across the North Island.

Ownership category

akta.pro rank

Product category

Environmental Erosion and Sediment Control Services

NAICS

Remediation Services (56291), Landscaping Services (56173), Remediation and Other Waste Management Services (5629)

SIC

Sanitary Services (4950)

akta.pro primary industry

Erosion & Sediment Control (Silt Fences, SWPPP Implementation) (IMAFAKAN)

akta.pro secondary industries

Site Remediation & Contaminated Soil Handling (IMAFAKAG), Erosion Control & Stormwater BMP Maintenance (IMAIAIAG), Dewatering & Temporary Groundwater Control (IMAFAKAH), Erosion Control & Slope Stabilization (Softscape/Planting Solutions) (HSAIABAI), Erosion Control & Land Stabilization (BPABADAH)

Keywords

• Erosion control services
• Hydroseeding contractor
• Sediment control products
• Water treatment chemicals
• Dust suppression solutions

Headquarters

HQ city

Dairy Flat

HQ country

New Zealand

HQ region

Oceania

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Products: Sale of proprietary products including FlocBox (new and refurbished), HydroHay, Liquid Soil, Silt Stopper clarifiers, erosion fabric, filter/floc socks, straw wattles, ground protection mats, and water treatment chemicals.
2. Equipment Hire: Rental of ground protection mats and lamella plate clarifiers (Silt Stopper) for temporary use on construction sites.
3. Professional Services: Chemical Treatment Management Plans (CTMPs), consultation, monitoring services, setup and implementation of treatment systems, and operator training.
4. Environmental Contracting Services: Full-service environmental stabilization including hydroseeding, straw mulching, tractor grassing, native planting, dust suppression, and MSE wall installation across construction sites.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Erosion Control Co Limited supplies erosion and sediment control products alongside contracted environmental stabilization services for civil construction, infrastructure, quarrying, forestry, and council projects across New Zealand's North Island. The company combines proprietary branded products (FlocBox™, HydroHay™, Liquid Soil™, Silt Stopper) with field services such as hydroseeding, hydromulching, straw mulching, native planting, water treatment, MSE wall installation, and real-time water quality monitoring. It acts as a one-stop environmental contractor managing erosion, sediment, dust, and water quality compliance from earthworks through to site restoration.

Product overview

Erosion Control is an environmental stabilization company offering a portfolio of proprietary products and professional services for erosion control, dust suppression, water treatment, and vegetation establishment. The core product line includes three flagship proprietary brands: HydroHay™ (hydromulch with hay fibers), Liquid Soil™ (hydroseeding medium for poor soils), and FlocBox™ (flocculant dosing system for sediment ponds). Supporting products include the Silt Stopper/Lamella Plate Clarifier for water clarification, Ground Protection Mats for site access, erosion fabrics, filter/floc socks, straw wattles, polymers, wetting agents, and water treatment chemicals. Services encompass hydroseeding/hydromulching, straw mulching, tractor grassing, native planting, water quality monitoring, sediment pond systems, MSE walls, landscaping, and overland flow intervention. The portfolio forms an integrated environmental management system where water treatment products (FlocBox, Silt Stopper, chemicals) work alongside vegetation establishment products (HydroHay, Liquid Soil) and sediment control products (socks, wattles, geofabrics) to provide comprehensive site protection from earthworks through to restoration.

Differentiator

Problem solved

Functional benefit

Brands

• HydroHay™: Proprietary hydromulch and sterile hay fibers product forming a protective barrier against erosion until full vegetation cover is achieved. Ideal for swale drain, culvert and berm areas.
• Liquid Soil™
• FlocBox™

Products and services

• FlocBox™ Sediment Dosing System Patented polyethylene sediment treatment system that chemically doses sediment retention ponds, replicating GD05 rainfall-activated shed principles. Available in 75L, 200L, and 400L sizes servicing catchments from 0.3 to 5 hectares. Sold to civil contractors, developers, and councils needing sediment control on construction sites.
• HydroHay™ Hydromulch Proprietary hydromulch incorporating hay fibers and strong polymers into a slurry mixture to form a thick protective surface layer for swale drains, culvert areas, and exposed terrain requiring stabilisation. Used on civil construction, quarry, and infrastructure sites.
• Liquid Soil™ Premium Hydroseeding Mix Premium hydroseeding medium engineered for areas with poor or degraded soils, combining organic hydromulch, composts, fertilizer, and tackifier to optimise vegetation establishment and longevity. Sold to contractors and developers tackling challenging terrain.
• Silt Stopper / Lamella Plate Clarifier Mobile gravity settlement device using inclined plates to maximise settling area within a minimal footprint, with integrated chemical treatment for water clarification. Available in standard, compact, and larger models for construction site runoff.
• Ground Protection Mats Heavy-duty 2400 x 1200 x 13mm mats manufactured from 100% recyclable MHDPE, made in New Zealand, with different grip profiles on each side and moulded handles. Available for hire or sale to contractors needing temporary site access protection.
• Filter Socks and Floc Socks Engineered erosion control socks for intercepting, filtering, and containing dirty water on earthwork sites. Available as prefabricated lengths or manufactured on-site, with floc socks incorporating flocculants or coagulants tailored to soil types. Also used as check dams and cess pit protection.
• Straw Wattles Biodegradable tubular rolls of meadow hay or barley straw encased in photodegradable netting, available in 9-inch or 12-inch diameter and up to 12 metres length. Used as slope intervention devices, sediment barriers, and for reducing sheet flow to prevent rilling and gully formation.
• Polymers for Dust Suppression and Soil Stabilisation Range of polymer products (PAM, Acrylic-based, Guar-based, PVA) for dust control and soil stabilisation, binding soil particles to reduce dust emissions and improve surface stability for up to 12 months.
• Water Treatment Chemicals (PAC, PolyDADMAC, EcoSuperfloc) Coagulants and flocculants including PAC (Polyaluminium Chloride), PolyDADMAC (organic polymer), and EcoSuperfloc (chitosan-based greener alternative from crustacean shells). Used for sediment removal from dirty water in construction site runoff systems.
• Erosion Fabric / Geofabric and Coir Matting Synthetic geofabric for soil stabilisation, drainage, and erosion control in heavy-duty applications such as roadways, embankments, and sediment retention ponds, complemented by coir matting (natural coconut fibre option) for eco-friendly applications.
• Hydroseeding / Hydromulching Service Contracted vegetation establishment service spraying slurry mixture of grass seed, water, mulch, and fertilisers. Hydromulching adds fibre mulch and tackifiers for superior erosion control on slopes. Includes custom seed blends, native seeding, and specialised products like Flexterra. Delivered to civil contractors, developers, councils, and quarry operators.
• Straw Mulching Service Eco-friendly dust control method applying a straw layer to soil surface after land clearing or grading. Provides moisture retention, erosion control, and promotes vegetation establishment while reducing sediment runoff by up to 80%.
• Tractor Grassing Service Large-scale grass seeding using specialised equipment such as drop seeders and broadcast drills. Cost-effective method for rapid coverage of extensive development sites, quarries, and roadside areas with uniform seed distribution.
• Native Planting Service Establishment of native plants on slopes, embankments, and walkable areas using locally-adapted species. Includes geofabric reinforcement, Liquid Soil, or HydroHay integration for challenging terrain, supporting biodiversity and environmental restoration.
• MSE Wall Installation Service Mechanically Stabilised Earth (MSE) walls providing engineered slope support using geosynthetics or steel reinforcement. Suitable for steep slopes, embankments, road cuttings, and areas with limited space, with flexible design supporting vegetation or landscaping finishes.
• Water Quality Monitoring System Solar-powered real-time monitoring system measuring turbidity and pH with telemetry-enabled remote data access. Transmits data for viewing on phone, tablet, or computer, providing early warning for consent limit approach and integration with flocculant dosing units and sediment tanks.
• Chemical Treatment Management Plans (CTMPs) and Environmental Consultation Development of site-specific Chemical Treatment Management Plans (CTMPs), environmental consultation, monitoring services, setup and implementation of treatment systems, and operator training for civil contractors, developers, and councils.
• Compact Hydroseeding Unit Hire Compact hydroseeding unit designed for smaller commercial plots, lifestyle blocks, and larger residential lawns, with a lower minimum charge rate than larger units. Available for hire and contracting.

Quantifiable outcome

• Sediment runoff reduced by up to 80% on mulched areas vs open ground
• +2 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

Feature4 records

Partnerships

Two partnerships are on record, tiered core and minor.

• Vital IndustriescoreStrategic or Co-development PartnerPartnership to bring EcoSuperfloc, a chitosan-based flocculant, to the New Zealand market. Chitosan is produced from chitin found in crustacean shells, making it a renewable resource and greener alternative to traditional PAC chemicals. This represents co-development of a new product category for environmentally sensitive applications.
• Cancer Society of New ZealandminorOthersCorporate social responsibility partnership where Erosion Control donates 5% of all FlocBox sales to the Cancer Society. New FlocBox tops manufactured in daffodil yellow bearing the Cancer Society logo.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Stantec: Global engineering and environmental services firm with a strong environmental compliance, water quality, and site remediation practice — overlaps with Erosion Control's CTMP and water quality monitoring offerings at larger project scale.
• Tensar International: Global geosynthetics manufacturer with a NZ presence, offering MSE wall reinforcement systems and erosion control geogrids — directly comparable to Erosion Control's MSE wall service line and geofabric offering.
• AECOM: Global environmental and infrastructure consulting firm with water resources, erosion control, and remediation capabilities; competes for environmental contracting scopes on major NZ infrastructure projects.

Direct peers

• GeoStabilization International: Specialist in slope stabilization and erosion control for civil infrastructure using engineered solutions including MSE walls and soil reinforcement — comparable to Erosion Control's slip control and MSE wall services.
• North American Green: Manufacturer of erosion control blankets and turf reinforcement mats commonly used alongside hydromulching and silt fence systems — comparable supplier in the erosion control product category.
• Western Excelsior: Manufacturer of erosion control blankets and Wattles/straw wattles, directly comparable to Erosion Control's product range including straw wattles and erosion blankets used on NZ sites.
• Profile Products: US-based leading manufacturer of hydraulic mulch, erosion control blankets, and sediment control products (including Flexterra, ProGanics). Comparable as a competing developer of proprietary hydromulch/erosion chemistry products that Erosion Control sources and competes against in NZ.
• Hydromax NZ: NZ-based hydroseeding contractor competing for the same civil contractor and developer customers across the North Island with similar hydromulching and revegetation services.

Regional players

• Revegetation Services Australia: Australian specialist in revegetation, hydroseeding and erosion control for civil and mining projects — operates across the Tasman with a similar service mix but in a different geography.

Emerging players

• EnviroSolutions & Consulting: NZ-based environmental consultancy supporting earthworks compliance, Chemical Treatment Management Plans, and erosion/sediment control planning — directly comparable professional services peer in the NZ market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/erosioncontrolcoltd
• LinkedInlinkedin.com/company/erosion-control-co-limited
• Instagraminstagram.com/erosioncontrolcoltd

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 Erosion Control