Company lists · Data refreshed September 2026

Top 25 Plant growth promoter manufacturers based in the United States

Name: Plant growth promoter manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 396 companies tracked

RevenueBase identified 396 plant growth promoter manufacturers headquartered in the United States as of September 2026 and tracks 17,069 professional contacts across them, including 6,806 with verified work emails. Houston is the largest hub.

This list covers plant growth promoter manufacturers 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 17, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

396Companies

17,069Contacts tracked

6,806Verified emails

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The 25 largest plant growth promoter manufacturers based in the United States

Ranked by team size

Top 25 of 396 plant growth promoter manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to plant growth promoter manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	The Mosaic Company	Partial evidence	Tampa, FL, United StatesHQ checked Sep 17, 2026	10001+	4,622 contacts →
	Partial evidence “The Mosaic Company (NYSE: MOS) helps the world grow the food it needs.” Source: RevenueBase Database · checked Sep 17, 2026
2	Alltech	Indirect evidence	Lexington, KY, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,489 contacts →
	Indirect evidence “Founded in 1980 by Irish entrepreneur and scientist Dr.” Source: RevenueBase Database · checked Sep 17, 2026
3	Helena Agri-Enterprises, LLC	Partial evidence	Collierville, TN, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,390 contacts →
	Partial evidence “Founded in 1957, Helena Chemical Company (now Helena Agri-Enterprises) has grown to be one of the nation’s foremost agricultural and specialty formulators and distributors in the…” Source: RevenueBase Database · checked Sep 17, 2026
4	Ball Horticultural Company	Indirect evidence	West Chicago, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	675 contacts →
	Indirect evidence “From our beginnings as a wholesale cut flower operation started by George J.” Source: RevenueBase Database · checked Sep 17, 2026
5	Albaugh, LLC	Indirect evidence	Ankeny, IA, United StatesHQ checked Sep 17, 2026	1,001-5,000	387 contacts →
	Indirect evidence “Albaugh, LLC is a privately owned U.S.” Source: RevenueBase Database · checked Sep 17, 2026
6	Brandt	Partial evidence	Springfield, IL, United StatesHQ checked Sep 17, 2026	501-1,000	359 contacts →
	Partial evidence “A leading agriculture company, BRANDT provides advanced inputs, trusted advice and technical solutions to farmers and growers around the world.” Source: RevenueBase Database · checked Sep 17, 2026
7	Harrell's LLC	Partial evidence	Lakeland, FL, United StatesHQ checked Sep 17, 2026	201-500	310 contacts →
	Partial evidence “Harrell’s is a leading producer of quality custom blended fertilizers and distributor of plant protectants and biocontrols for golf course, turf & landscape, specialty ag, sports…” Source: RevenueBase Database · checked Sep 17, 2026
8	Valent Biosciences	Indirect evidence	Libertyville, IL, United StatesHQ checked Sep 17, 2026	201-500	309 contacts →
	Indirect evidence “Valent BioSciences is now part of Sumitomo Biorational Company, a global leader in biorational innovation serving the agricultural, public health, forestry, and environmental…” Source: RevenueBase Database · checked Sep 17, 2026
9	Verdesian Life Sciences	Indirect evidence	Cary, NC, United StatesHQ checked Sep 17, 2026	201-500	256 contacts →
	Indirect evidence “The Nutrient Use Efficiency People.” Source: RevenueBase Database · checked Sep 17, 2026
10	Profile Products	Strong evidence	Buffalo Grove, IL, United StatesHQ checked Sep 17, 2026	501-1,000	252 contacts →
	Strong evidence “Profile® Products is a leading developer and manufacturer of highly engineered specialty agriscience materials that promote environmental sustainability while delivering superior…” Source: RevenueBase Database · checked Sep 17, 2026
11	Griffin Greenhouse Supplies	Indirect evidence	Tewksbury, MA, United StatesHQ checked Sep 17, 2026	201-500	203 contacts →
	Indirect evidence “Griffin is a partner to horticulture professionals.” Source: RevenueBase Database · checked Sep 17, 2026
12	Advanced Nutrients	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 17, 2026	51-200	198 contacts →
	Strong evidence “Advanced Nutrients is an international marketer and manufacturer of agricultural, home & garden, hydroponics fertilizers, and plant nutrients.” Source: RevenueBase Database · checked Sep 17, 2026
13	Nursery Supplies, Inc., A Creo Company	Indirect evidence	Chambersburg, PA, United StatesHQ checked Sep 17, 2026	51-200	142 contacts →
	Indirect evidence “At Nursery Supplies Inc, a CREO Company, we deliver innovative, eco-friendly products of the highest quality to the horticulture industry.” Source: RevenueBase Database · checked Sep 17, 2026
14	Certis Biologicals	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 17, 2026	51-200	133 contacts →
	Indirect evidence “Certis Biologicals: Your Partner in Biological Innovation For over 30 years, Certis Biologicals has led the way in developing, manufacturing, and delivering biological solutions…” Source: RevenueBase Database · checked Sep 17, 2026
15	Valley Agronomics, LLC	Indirect evidence	Rupert, ID, United StatesHQ checked Sep 17, 2026	501-1,000	127 contacts →
	Indirect evidence “Valley Agronomics, LLC is an agronomy company dedicated to improving performance of crops, while helping to improve sustainability of farming practices, and reducing the impact of…” Source: RevenueBase Database · checked Sep 17, 2026
16	PRO Farm Group	Indirect evidence	Davis, CA, United StatesHQ checked Sep 17, 2026	51-200	113 contacts →
	Indirect evidence “Pro Farm Group Inc.” Source: RevenueBase Database · checked Sep 17, 2026
17	Invaio	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 17, 2026	51-200	111 contacts →
	Partial evidence “As a breakthrough agriculture biotech company, we bring innovative, nature-positive crop health technologies to support growers in tackling the biggest threats to their crops.” Source: RevenueBase Database · checked Sep 17, 2026
18	Agroliquid	Indirect evidence	Saint Johns, MI, United StatesHQ checked Sep 17, 2026	51-200	98 contacts →
	Indirect evidence “For more than 40 years AgroLiquid has been on a mission to engineer the best liquid fertilizer products while safeguarding your crops, the soil, and the environment.” Source: RevenueBase Database · checked Sep 17, 2026
19	Agrinos	Indirect evidence	Davis, CA, United StatesHQ checked Sep 17, 2026	51-200	95 contacts →
	Indirect evidence “Agrinos, An American Vanguard Company, is a biological crop input provider committed to improving the productivity and sustainability of modern agriculture worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
20	Elemental Enzymes	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 17, 2026	11-50	93 contacts →
	Indirect evidence “Elemental Enzymes Ag and Turf, is a life sciences company that discovers, develops and produces innovative products to increase crop yields.” Source: RevenueBase Database · checked Sep 17, 2026
21	Speedling Incorporated	Indirect evidence	Ruskin, FL, United StatesHQ checked Sep 17, 2026	51-200	92 contacts →
	Indirect evidence “At Speedling we are motivated by our customers’ success.” Source: RevenueBase Database · checked Sep 17, 2026
22	Synsus Private Label Partners	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	90 contacts →
	Indirect evidence “Synsus Private Label Partners is a leading U.S.” Source: RevenueBase Database · checked Sep 17, 2026
23	Agro-K Corporation	Strong evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	11-50	90 contacts →
	Strong evidence “Agro-K is a manufacturer of agricultural inputs focusing on specialty foliar micronutrients, plant growth regulators, and biological and organic farming inputs.” Source: RevenueBase Database · checked Sep 17, 2026
24	Agxplore International	Partial evidence	Jackson, MO, United StatesHQ checked Sep 17, 2026	51-200	88 contacts →
	Partial evidence “AgXplore® is a performance-driven plant nutrition company focused on providing technologically-advanced fertilizer management aids and agronomically-superior plant nutrition…” Source: RevenueBase Database · checked Sep 17, 2026
25	Plant Health Care, INC	Partial evidence	Holly Springs, NC, United StatesHQ checked Sep 17, 2026	51-200	77 contacts →
	Partial evidence “Plant Health Care is a leading provider of scientifically proven biological products for agriculture.” Source: RevenueBase Database · checked Sep 17, 2026

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: plant growth promoter manufacturers. 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 plant growth promoter manufacturers.
Partial evidence: Its own public description names part of plant growth promoter manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name plant growth promoter manufacturers. 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 396 plant growth promoter manufacturers based in the United States

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Plant growth promoter manufacturers based in the United States at a glance

As of Sep 17, 2026

39.9%Verified-email coverage

43.1Average contacts per company

11-50Median size (employees)

2.8%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

170

11-50

138

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 396 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 plant growth promoter manufacturers, 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 “plant growth promoter manufacturers”. 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 plant growth promoter manufacturers), 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 plant growth promoter manufacturers, 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, 6,806 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 17, 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 plant growth promoter manufacturers, 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 plant growth promoter manufacturers are there based in the United States?

RevenueBase identified 396 plant growth promoter manufacturers 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?

The Mosaic Company, headquartered in Tampa, tops this list with the largest team on record.

Which city has the most plant growth promoter manufacturers?

Houston leads with 11 headquartered companies, followed by Fresno (6) and Denver (5).

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 6,806 verified decision-maker contacts tracked across these 396 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 17, 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.