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This section provides an overview for organic fertilizers as well as their applications and principles. Also, please take a look at the list of 10 organic fertilizer manufacturers and their company rankings. Here are the top-ranked organic fertilizer companies as of September, 2026: 1.Suståne Natural Fertilizer, Inc., 2.Nature Safe, 3.Indogulf BioAg LLC.
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Categories Related to Organic Fertilizers
Organic fertilizers are fertilizers made from biological resources such as animals, plants, and microorganisms.
Typical examples of organic fertilizers are fertilizers made from fishmeal and oil meal. Although they are basically made from organic materials, there are some fertilizers, such as poultry manure and plant ashes, that are inorganic but still fall under the category of organic fertilizers.
Organic fertilizers are used to replenish nutrients in the soil and to improve soil fertility. Organic fertilizers are characterized by their less immediate but more lasting effects.
As such, they have two uses: as a soil improver before crops are grown, or as an additive depending on how well the crops are growing. Both are easy to use because the process is simply mixing it into the soil or sprinkling it on top of the soil.
Because there are different types of organic fertilizers, it is important to understand the characteristics of each and use them efficiently.
Oil cake is the lees of soybeans or rapeseed from which oil is removed. Among organic fertilizers, oil cake is particularly rich in nitrogen, and also contains phosphoric acid and potassium.
Non-fat rice bran is the powder produced when brown rice is polished. It contains high levels of nitrogen, phosphoric acid, potassium, vitamins, and sugar.
Grass ash is the ash produced after burning fallen leaves, dead grass, and other vegetation. In addition to being high in potassium, it also contains lime and phosphoric acid.
Chicken manure is a fertilizer made by drying, fermenting, and carbonizing chicken manure, also called poultry manure. It contains a good balance of nitrogen, phosphoric acid, and potassium, and is also rich in magnesium and calcium.
Fishmeal is made by boiling fish, removing the water and oil, and then drying it into a powder. It is rich in nitrogen and phosphoric acid.
Bone meal is made by pressurizing and steaming pig or chicken bones at high temperatures, then drying and grinding them. It is rich in phosphoric acid and also contains a small amount of nitrogen.
Highly Sustainable
Organic fertilizers are more persistent than chemical fertilizers because they are absorbed by plant roots after being decomposed by microorganisms. Therefore, organic fertilizers work slowly and remain effective for a long period.
Improved Soil Environment
The use of organic fertilizers activates useful microorganisms in the soil. The activation of useful microorganisms promotes soil compaction, which in turn improves soil aeration, water retention, drainage, and fertilizer retention. The use of organic fertilizers improves the soil environment and creates a suitable soil environment for crop cultivation.
Trace Essential Elements Can Be Expected to Be Supplied
Trace essential elements for plants include copper and zinc. Organic fertilizers contain a variety of elements, so the use of organic fertilizers can be expected to supply these trace essential elements.
Low Immediate Effect
Organic fertilizers are broken down by microorganisms in the soil, and as a result, they are converted into nutrients that plants can absorb. Therefore, organic fertilizers do not have an immediate effect, and it takes time for their effects to become apparent.
Difficult to Adjust the Amount
Organic fertilizers are effective through the action of microorganisms, so their effectiveness may vary depending on the degree of activation of the microorganisms. Specifically, in an environment where microorganisms are easily activated, decomposition can easily proceed and a great effect can be expected.
On the other hand, in an environment where microorganisms are not easily activated, the effect may be small. Compared to chemical fertilizers, organic fertilizers are characterized by the difficulty in adjusting the amount according to the purpose.
They Can Cause Gas and Odors
Organic fertilizers are decomposed by microorganisms in the soil and transformed into nutrients that plants can absorb. It is important to note that gases and odors may be produced during this process. Specifically, gases can cause damage to plant roots, and strong odors can attract insects and birds.
*Including some distributors, etc.
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Suståne Natural Fertilizer Inc. is an American organic fertilizers manufacturer and supplier that was established in Cannon Falls, Minnesota in 1988. The company primarily produces organic fertilizer made from composter turkey litter, soil amendments for improving soil structure and microbial activity, and natural fertilizers designed for slow release of nitrogen and/or other nutrients. It also offers seaweed-based biostimulants, as well as custom blending services by customer specifications. The company is certified to USDA BioPreferred as well as BCS Öko-Garantie standards and operates internationally, with a distribution network spanning 60 countries.
Indogulf BioAg LLC is a manufacturer and developer of biological inoculants, organic fertilizers, microbial strains, and mycorrhiza (VAM), founded in 2014 and headquartered in Sheridan, Wyoming. The company’s product portfolio covers root enhancers, solid fertilizers, microbial blends, and microbial strains. It also offers nanofertilizers, crop kits, composting solutions, and wastewater treatment. Additionally, it provides custom research and specialized formulations to meet client needs. The company’s products are sold under various brands, including Growmate, MYKROBAK, and SUPER MICROBES. It is part of the Indogulf Group, exporting products to over 25 countries worldwide.
Benefert B.V. is a manufacturer of organic fertilizers and biostimulants founded in 2019 and headquartered in Eindhoven, Netherlands. The company specializes in the development and commercialization of bio-based products. It offers various soil and crop fertilizers under the brands BeneSOL, BeneLIQ, BeneSTIM, Biota, and OSMO. The company’s products are available in different shapes and packaging and are approved for organic farming. It serves various markets, including agriculture, horticulture, tree nursery, fruit growing, and landscaping.
Hi Field AG. Chem India Pvt. Ltd., established in 1994 and based in Maharashtra, India, is a manufacturer and supplier specializing in agrochemicals and acids. The company's range of products includes seaweed extracts, super potassium humate flakes, and amino acids. These products find applications in various sectors, including agriculture, horticulture, and research and development, for studying and testing plant growth and soil enhancement. The company exports its products to various countries globally, including the United States, South Africa, and China.
Fertoz Ltd. is a manufacturer and supplier of regenerative and organic fertilizer products founded in 2012 and headquartered in Vancouver, British Columbia. The company offers a wide range of regenerative fertilizers, including rock phosphate in granular, powder, and micronized forms, as well as pelleted NPK. These products obtained certifications from OMRI, Pro-Cert Organic, WSDA, and CDFA. The company has rock phosphate mining projects in Canada, the USA, and Mexico. It caters to various customers, including organic farmers, conventional farmers, and landscapers.
Ranking as of September 2026
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Suståne Natural Fertilizer, Inc. |
18.6%
|
| 2 | Nature Safe |
13.7%
|
| 3 | Indogulf BioAg LLC |
11.8%
|
| 4 | Benefert B.V. |
9.9%
|
| 5 | California Organic Fertilizers Inc. |
9.6%
|
| 6 | Fertoz |
9.3%
|
| 7 | Clean & Green Recycling Corp. |
6.2%
|
| 8 | Chaitanya Biologicals Pvt. Ltd |
5.8%
|
| 9 | BHOOJEEVAN ORGANICS PVT. LTD |
5.7%
|
| 10 | Hi Field AG. Chem India Pvt. Ltd. |
5.3%
|
Derivation Method
The ranking is calculated based on the click share within the organic fertilizer page as of September 2026. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
2 | 28.6% |
|
India
|
2 | 28.6% |
|
Canada
|
1 | 14.3% |
|
Netherlands
|
1 | 14.3% |
|
China
|
1 | 14.3% |
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