Company lists · Data refreshed September 2026
Top 25 Soil amendment suppliers based in the United States
RevenueBase identified 269 soil amendment suppliers headquartered in the United States as of September 2026 and tracks 2,355 professional contacts across them, including 835 with verified work emails. Houston is the largest hub.
This list covers soil amendment suppliers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest soil amendment suppliers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 344 contacts → | ||||
Indirect evidence “About Us Sun Gro Horticulture is one of the most prominent North American horticultural companies, employing over 800 staff and serving customers worldwide.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 198 contacts → | ||||
Indirect evidence “Advanced Nutrients is an international marketer and manufacturer of agricultural, home & garden, hydroponics fertilizers, and plant nutrients.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 110 contacts → | ||||
Indirect evidence “Founded in 1925 by H.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 70 contacts → | ||||
Partial evidence “Since 1964, American Plant Food has been providing the high-quality blends, inputs, and services required for healthy soil, as well as the knowledge growers need to achieve…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 64 contacts → | ||||
Partial evidence “Midwestern BioAg manufactures and distributes fertilizers that build soil health while increasing yields and nutritional quality of both food and forage.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 52 contacts → | ||||
Partial evidence “At FoxFarm Soil & Fertilizer Company, we are passionate about producing the finest soil mixes, fertilizers, and micro-brewed liquid plant foods.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 46 contacts → | ||||
Indirect evidence “Marion Ag has been finding ways to help growers and resellers grow their business for over 50 years.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 46 contacts → | ||||
Partial evidence “AG RX is the leading independent supplier of traditional and organic crop protection and nutrient products.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 40 contacts → | ||||
Partial evidence “Coast of Maine Organic Products was founded in 1996 with the simple idea that a healthy planet needs healthy soil to sustain life.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 35 contacts → | ||||
Partial evidence “Founded in 1994, The Ground Up (TGU) began with a simple goal: to supply the industry with the finest quality mulches and soils.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 34 contacts → | ||||
Partial evidence “Agromin, with facilities throughout California, manufactures earth-friendly soil products for farmers, government entities, landscapers and gardeners.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 30 contacts → | ||||
Indirect evidence “For 30 years Bio-Gro Inc.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 30 contacts → | ||||
Partial evidence “PittMoss produces next-generation gardening amendments and mixes.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 28 contacts → | ||||
Partial evidence “As any seasoned gardener or landscaper knows, the most important thing you can do to enhance a lawn or garden is to cultivate better soil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 23 contacts → | ||||
Partial evidence “Midwest Trading is a wholesale supplier leading the Green Industry in Chicagoland with sustainable products for over 35 years.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 19 contacts → | ||||
Indirect evidence “Return helps move nutrients smarter.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 18 contacts → | ||||
Partial evidence “The quality of the food we eat and plants we grow is directly related to the quality of the soil in which it is grown.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 18 contacts → | ||||
Indirect evidence “Vital Garden Supply prides itself on offering the highest quality organic products to increase yield, flavor, and beauty in any crop.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 17 contacts → | ||||
Partial evidence “Global Organics® is the leading provider of nutrients and minerals for sustainable, healthy soil, plant, animal and human bioactivity and development.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 14 contacts → | ||||
Indirect evidence “Grower's Secret, Inc is based in Antioch, CA, and Honolulu, HI, with R&D Lab in Honolulu, HI, warehouses in Kent, WA, and Tampa, FL, and admin offices in Antioch, CA.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 14 contacts → | ||||
Partial evidence “We make and sell organic mulch, compost, and garden soil.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 contacts → | ||||
Indirect evidence “At Organic Recycling Inc We have over 25 years of experience producing high quality compost, nutrient rich topsoil and a variety of mulches to keep your yard looking great.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 12 contacts → | ||||
Partial evidence “PrairieFood is unlocking the power of micro-carbon to reshape agriculture from the soil up.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Indirect evidence “Southern Agricultural Insecticides is a chemicals company based out of 5 N.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: soil amendment suppliers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names soil amendment suppliers.
- Partial evidence
- Its own public description names part of soil amendment suppliers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name soil amendment suppliers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 269 soil amendment suppliers based in the United States
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Soil amendment suppliers based in the United States at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 269 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among soil amendment suppliers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “soil amendment suppliers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names soil amendment suppliers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among soil amendment suppliers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 835 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names soil amendment suppliers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many soil amendment suppliers are there based in the United States?
RevenueBase identified 269 soil amendment suppliers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
SUN GRO Horticulture, headquartered in Agawam, tops this list with the largest team on record.
Which city has the most soil amendment suppliers?
Houston leads with 5 headquartered companies, followed by Dallas (4) and Gainesville (4).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 835 verified decision-maker contacts tracked across these 269 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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