Jongkind

What Jongkind does

Jongkind B.V. is a privately held Dutch family business founded in 1908 in Aalsmeer, Netherlands, currently led by fourth-generation Managing Director Hendrik Jongkind (since 2007). The company manufactures and sells professional substrates and clay granules for the horticulture industry, operating a B2B sales-led model that targets commercial growers, hydroculture operators, and urban greening projects primarily in the Netherlands and broader Europe.

The core product portfolio comprises two main franchises. First, substrates — including tailor-made custom formulations, universal substrates, urban substrates (Sedum, Intensive, Potting Soil, Organic, Mineral variants), and peat-free/reduced-peat options — produced using precision computer-controlled weighing and dosing systems that ensure each liter contains the exact nutrient profile specified by the grower, with both soluble and slow-release formats. Second, clay granules (hydrocorns) for hydroculture, manufactured from purified clay heated in rotary kilns at 1100°C to produce expanded grains with open cell structures combining aeration and water absorption. Supporting offerings include nutrients, biostimulants (mycorrhiza, rhizobacteria, microalgae), sedum trays for green roofing, and raw materials such as Swedish, Irish, and German sphagnum peat, Indian coco, perlite, vermiculite, and bark. Distribution spans bulk delivery (25-125 EN m³), big bales, big bags, plastic boxes, and retail bags, with the company operating its own truck fleet for direct delivery.

Revenue is generated through quote-based sales of these customized substrates and growing media, with pricing tied to formulation complexity, raw material mix, and packaging format rather than standardized list pricing. The company holds RHP (Dutch potting soil trade certification), Kiwa, and Responsibly Produced Peat (RPP) certifications, and operates a multilingual website (Dutch, English, German, Spanish) supporting export activities. Headcount sits at 11-50 employees; no revenue, funding, or M&A figures are disclosed, and ownership remains entirely within the founding family across four generations.

Name

Jongkind

Legal name

Jongkind B.V.

Website

https://jongkind-substrates.com

Company type

Private

Founded year

1908

Operating status

Operating

Headcount range

11–50 employees

Short description

Jongkind is a fourth-generation Dutch family business (founded 1908) that manufactures and supplies custom substrates, peat-free growing media, and clay granules to professional horticulturists, hydroculture operators, and urban greening projects across Europe.

Ownership category

akta.pro rank

Product category

Horticultural Substrates and Growing Media

NAICS

Fertilizer and Compost Manufacturing (32531), Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (3253)

akta.pro primary industry

Fertilizer & Micronutrient Formulations (NPK blends, chelates, suspensions) (AFABAIAB)

akta.pro secondary industries

Fertilizer Production & Granulation Services (Tolling, Compaction, Prilling) (AFABABAI), NPK/Compound & Blended Fertilizers (Granular Blends, Bulk Blending) (AFABABAD)

Keywords

• Horticultural substrates
• Clay granules hydroculture
• Professional growing media
• Peat based substrates
• Green roof substrates

Headquarters

HQ city

Aalsmeer

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Substrate and growing media sales: Jongkind generates revenue through the manufacture and sale of professional substrates, clay granules, and growing media to commercial horticulturists. Products are sold in various packaging formats including bulk, big bags, boxes, and bags ranging from 10-125 EN m³ volumes. The company operates on a quote-based pricing model with custom formulations driving value.

Go-to-market motion1 record

Distribution channels5 records

Marketing channels1 record

Core offering

Jongkind manufactures and sells professional horticulture substrates and clay granules (hydrocorns) to commercial growers, with custom substrate formulations optimized for sowing, cuttings, repotting, and urban greening applications. Production uses precision computer-controlled weighing and dosing systems to deliver tailor-made mixtures with controlled nutrient, pH, and aeration profiles. The company supplies products directly to nurseries and growers through bulk, big bag, box, and bag packaging formats.

Product overview

Jongkind is a family business (founded 1908, now in fourth generation under Hendrik Jongkind) specializing in high-quality substrates and growing media for professional horticulture. The company operates from Aalsmeer, Netherlands, and exports worldwide. The core product portfolio consists of two main categories: (1) Substrates including Jongkind standard substrates, tailor-made custom substrates, universal substrates, and urban substrates (with variants for sedum, intensive rooftop, organic, and mineral applications), plus peat-free/reduced peat options; and (2) Clay granules (hydrocorns) for hydroculture with applications as substrate supplements and urban substrates. Supporting offerings include nutrients and biostimulants, raw materials (Swedish clay, bark, perlite, vermiculite, peat varieties, and coco), and Sedum Trays for green roofing. Products are available in various packaging formats including bulk, big bales, big bags, plastic boxes, and bags. The company emphasizes customization, quality certification (RHP, Kiwa), and sustainability with responsibly produced peat (RPP) initiatives.

Differentiator

Problem solved

Functional benefit

Brands

• Jongkind Sedum Trays: Sustainable and professional solution for fine dust capture, water storage, insulation and biodiversity. Used in green roofing, roof gardens, roundabouts, central reservations and other green decorations.
• Urban Sedum
• Urban Intensive
• Urban Potting Soil
• Urban Organic
• Urban Mineral

Products and services

• Jongkind Substrates High-quality substrate mixtures for sowing, cuttings, and repotting in professional horticulture, targeted at commercial growers propagating young plants.
• Tailor-Made Substrates Custom substrate formulations designed to meet specific grower requirements and crop needs, with each batch precisely dosed using computer-controlled systems.
• Universal Substrates Standardized substrate and potting soil mixtures suitable for mass production in professional nurseries.
• Peat-Free/Reduced Peat Substrates Sustainable substrates with reduced or zero peat content designed for environmentally conscious professional growers.
• Urban Substrates Specialized substrates for urban greening applications including rooftop gardens, decorative green spaces, and urban horticulture on hard surfaces, available in sedum, intensive, organic, mineral, and universal potting variants.
• Jongkind Clay Granules (Hydrocorns) Special expanded clay granules for hydroculture, produced from purified clay heated in rotary kilns at 1100 degrees C, available in various shapes, forms, and sizes for soilless cultivation systems and substrate supplements.
• Jongkind Sedum Trays Pre-vegetated sedum trays delivering fine dust capture, water storage, insulation, and biodiversity benefits in a single solution for green roofing, roof gardens, roundabouts, and other urban green decorations.
• Nutrients and Biostimulants Range of macro and micro nutrients, slow and fast-release nutrients, and mineral and organic nutrients, plus biostimulants that stimulate underground life in the root zone and promote growth.

Quantifiable outcome

• Homogeneous substrate mixtures with consistent quality batch-to-batch

Named customers4 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

Feature3 records

Partnerships

Three partnerships are on record, tiered core.

• Swedish Peat SupplierscoreOthersLong-term contractual relationships with trusted Swedish suppliers for extraction, drying, and mixing of high-quality sphagnum peat. Swedish peat is characterized by stable structure, low dust content, and minimal wood remnants, dried for at least one year to prevent fermentation.
• Indian Coconut SupplierscoreOthersJongkind sources only the highest quality, well-decontaminated coconut from India. Specifically uses dark old coconuts that decompose less and are therefore more stable. Suppliers provide intensive decontamination and correction to remove potassium, sodium, and chlorides.
• Certified Clay Granule ManufacturerscoreTechnology or IntegrationJongkind collaborates with certified manufacturers to produce top-quality clay granules in various forms and specifications. Works with multiple certified brands ensuring consistent quality.

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Klasmann-Deilmann: One of the world's largest producers of growing media and substrates for professional horticulture, headquartered in Germany. Closely comparable offering of peat-based and peat-reduced substrates with international distribution, serving the same professional grower base as Jongkind.
• Jiffy Group: Norwegian-headquartered producer of growing media, substrates and propagation systems for horticulture worldwide. Comparable in specializing in substrates for professional young-plant propagation and offering both peat-based and peat-free product lines.
• Stender AG: German substrate manufacturer producing peat-based growing media and clay granules for horticulture. Directly competes with Jongkind across both core product categories and serves the same European professional greenhouse market.
• Gramoflor: German peat and substrate producer offering standard and tailor-made substrates for professional horticulture. Directly comparable on substrate formulation, European distribution, and customer base overlap with Dutch growers.
• ASB Grünland: German producer of peat and growing media substrates for ornamental and professional horticulture. Comparable product line, comparable European customer base, and comparable focus on substrate customization for growers.
• Floragard Vertriebs-GmbH: German substrate and growing-media producer serving professional horticulture with peat-based and peat-free products. Overlaps with Jongkind on substrates, quality testing, and the European professional-grower customer segment.
• Bord na Móna Horticulture: Irish peat-based substrate manufacturer supplying professional horticulture in Ireland and across Europe. Comparable peat-sourcing profile and substrate formulation offering, with similar emphasis on certification and quality for professional growers.

Emerging players

• Pelemix: Israel-based producer specializing in coconut coir growing media and blended substrates for hydroponics and horticulture. Comparable on growing-media manufacturing, with stronger focus on coco-based inputs that partly overlap with Jongkind's Indian coco sourcing line.

Broad incumbents

• ICL Group: Global specialty fertilizers and ag-inputs company with a Specialty Plant Nutrition and growing-media footprint. Overlaps with Jongkind as a much larger incumbent offering substrates and nutrient solutions across horticulture markets, but as part of a wider portfolio.
• COMPO Group: European leader in consumer and professional horticultural inputs including substrates and fertilizers. Comparable in substrate manufacturing in Europe, though significantly larger and broader in product scope than Jongkind's professional-horticulture focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/JongkindSubstrates
• LinkedInlinkedin.com/company/jongkind-substrates
• Pinterestpinterest.com/pin/create/button/?description=Practical%20instructions&media=&url=https://www.jongkind-substrates.com/en
• Xtwitter.com/intent/tweet?text=Practical%20instructions&url=https://www.jongkind-substrates.com/en/&via=

Compliance3 records

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 Jongkind