Largest companies: Plant propagation

#1

Kania

sp. z o.o.

Kania is a mushroom-growing substrate producer based in Piasek, supplying customers in Poland and abroad. It makes compost and phase II and III substrate for growing white and brown mushrooms, and also buys straw, gypsum and poultry manure.

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#4

Wytwórnia Podłoża Zastępczego

S.K.A.

Wytwórnia Podłoża Zastępczego is a producer of substrate for mushroom cultivation. The company is located in Kołodziejowy Grąd, Wielbark, Poland.

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#6

Unikost

sp. z o.o.

Unikost is a family-owned company operating continuously since 1994 and producing and selling Phase III substrate with fully grown mushroom mycelium for mushroom cultivation. The company collects and bales straw using its own machinery, uses its substrate in its own mushroom farm, tests its quality in an in-house laboratory, and provides cultivation advice.

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#7

IGP Polska

sp. z o.o. + limited partnership

IGP Polska is a cooperative of crop breeders belonging to a leading breeders’ association with more than 94 years of experience. The company offers high-yielding crop varieties and regional recommendations, along with a 2026 catalogue of rapeseed and winter cereal varieties.

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#8

Volmary

sp. z o.o.

Volmary is an international producer of seeds and young plants. Its product range includes flowers, vegetables, herbs and fruit.

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#9

CNC Substrat Polska

sp. z o.o.

CNC Substrat Polska produces growing substrate for white and brown mushrooms. The company works closely with raw-material suppliers and customers and also offers exotic mushrooms and oyster mushrooms.

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#10

Limax Substrates

sp. z o.o.

Limax Substrates produces natural compost substrate for professional mushroom cultivation. It uses straw from cereal crops, poultry manure and gypsum from power plants, and follows a sustainable production process.

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#11

STEC

sp. k.

STEC produces substrate for mushroom cultivation and is one of the largest manufacturers in this industry. The company has operated in the agri-food sector for over 30 years and is carrying out an investment in a 710.64 kWp photovoltaic installation.

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#12

Clematis Źródło Dobrych Pnączy

sp. z o.o. + limited partnership

Clematis źRóDłO Dobrych PnąCzy is a producer of clematis, climbing plants, perennials, ornamental and fruit shrubs, as well as ground cover plants. The company offers a wide selection of ornamental plants, including hydrangeas, lilacs, and magnolias, and is recognized for its high-quality products, having received awards at international horticultural exhibitions. Their cultivation program includes 96 varieties of clematis developed by Szczepan Marczyński.

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#15

Norwa Plants

sp. z o.o.

Norwa Plants is an independent tissue culture laboratory that has propagated plants in vitro since 1984. Its services include introducing plants to tissue culture, mass meristem propagation, and rooting and hardening; it produces over 10 million seedlings a year across more than 1,000 varieties of perennials, indoor and garden plants, shrubs, trees, vegetables, and fruit plants.

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