Company lists · Data refreshed September 2026

Top 25 Non-gmo seed companies based in the United States

RevenueBase identified 112 non-gmo seed companies headquartered in the United States as of September 2026 and tracks 1,810 professional contacts across them, including 636 with verified work emails. Broomfield is the largest hub.

This list covers non-gmo seed companies 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 20, 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 20, 2026 86% judged on-target in blind review
112Companies
1,810Contacts tracked
636Verified emails
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The 25 largest non-gmo seed companies based in the United States

Ranked by team size
Top 25 of 112 non-gmo seed companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to non-gmo seed companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceWinslow, ME, United StatesHQ checked Sep 20, 2026201-500202 contacts →

Partial evidence

“Johnny’s Selected Seeds is a privately held, employee-owned seed producer and merchant headquartered in Winslow, Maine, USA.”

Source: RevenueBase Database · checked Sep 20, 2026
2Strong evidenceBellingham, WA, United StatesHQ checked Sep 20, 2026n/a195 contacts →

Strong evidence

“The Non-GMO Project is a mission-driven nonprofit organization dedicated to building and protecting a non-GMO food supply.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceRemington, IN, United StatesHQ checked Sep 20, 2026501-1,000163 contacts →

Partial evidence

“Remington Seeds is the largest third party seed producer in the world.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceYuma, AZ, United StatesHQ checked Sep 20, 202651-20093 contacts →

Partial evidence

“Keithly-Williams Seeds' mission is to maintain and build a long-term retail vegetable seed business that has growth, profitability and which is an integral part of the business…”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceTolono, IL, United StatesHQ checked Sep 20, 202651-20073 contacts →

Partial evidence

“For nearly a century, IFSI has been a trusted leader in seed genetics.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceBrookings, SD, United StatesHQ checked Sep 20, 202651-20049 contacts →

Indirect evidence

“Every day at Millborn starts with the goal of enriching land and lives.”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceSalt Lake City, UT, United StatesHQ checked Sep 20, 202611-5046 contacts →

Partial evidence

“We are proud to be one of the few truly independent seed companies remaining.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceMansfield, MO, United StatesHQ checked Sep 20, 202651-20044 contacts →

Partial evidence

“Baker Creek Heirloom Seed Company offers thousands of heirloom seed varieties.”

Source: RevenueBase Database · checked Sep 20, 2026
9Strong evidenceWolcott, VT, United StatesHQ checked Sep 20, 202651-20039 contacts →

Strong evidence

“High Mowing Organic Seeds is an organic, non-GMO leader in the seed, farming and food community who cares deeply about the need to grow nutrient rich healthy food for the world…”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceCuba City, WI, United StatesHQ checked Sep 20, 202651-20029 contacts →

Partial evidence

“Gro Alliance is the nation's largest, independently owned contract producer of seed corn and soybean seed.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceAlexander, IA, United StatesHQ checked Sep 20, 202611-5027 contacts →

Partial evidence

“Latham Seed was founded in 1947 in Alexander, Iowa, by farmer Willard Latham and his wife, Evelyn.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceBroomfield, CO, United StatesHQ checked Sep 20, 202651-20025 contacts →

Indirect evidence

“Botanical Interests was founded in 1995 out of the garage of co-owners Judy Seaborn and Curtis Jones.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceGrass Valley, CA, United StatesHQ checked Sep 20, 202651-20024 contacts →

Indirect evidence

“We're the largest independent U.S.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceAlbert Lea, MN, United StatesHQ checked Sep 20, 202651-20022 contacts →

Partial evidence

“Albert Lea Seed began is an independent, family-owned seed retailer with 90 years of experience in the seed business.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceAshkum, IL, United StatesHQ checked Sep 20, 202611-5020 contacts →

Partial evidence

“ProHarvest Seeds is a progressive Midwestern seed company that works hard to ensure its customers have the best products for their farms.”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceCarpinteria, CA, United StatesHQ checked Sep 20, 202651-20017 contacts →

Partial evidence

“The NativeSeed Group is not just North America’s only vertically-integrated seed company-we are a team of passionate seed scientists, farmers, and conservationists dedicated to…”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidencePlano, TX, United StatesHQ checked Sep 20, 202611-5016 contacts →

Partial evidence

“Apollo Seeds™ has provided customers with excellent service and products since 2009.”

Source: RevenueBase Database · checked Sep 20, 2026
18Partial evidenceWarden, WA, United StatesHQ checked Sep 20, 202611-5016 contacts →

Partial evidence

Seed Production: Our team utilizes a network of professional seed growers in the Pacific Northwest’s Columbia River Basin, our country’s premier seed growing region, to produce…”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceSomerton, AZ, United StatesHQ checked Sep 20, 202611-5016 contacts →

Partial evidence

“Condor Seed is a wholesale vegetable and herb seed production company established in 1985.”

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidencePort Townsend, WA, United StatesHQ checked Sep 20, 202611-5014 contacts →

Partial evidence

“Organic Seed Alliance puts the power of seed into the hands of growers.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceEnid, OK, United StatesHQ checked Sep 20, 202611-5013 contacts →

Indirect evidence

“We’re passionate about serving our customers, and we’ve been doing it for more than a century.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceKentland, IN, United StatesHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
23Indirect evidenceCarlsbad, CA, United StatesHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceFremont, NE, United StatesHQ checked Sep 20, 202611-5011 contacts →

Partial evidence

“Seitec Genetics is an independent seed company located in Fremont Nebraska.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceRandolph, WI, United StatesHQ checked Sep 20, 202611-5010 contacts →

Partial evidence

“Jung Seed Company is 100% family-owned & operated company that is over 100-years old.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 112 non-gmo seed companies based in the United States

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Non-gmo seed companies based in the United States at a glance

As of Sep 20, 2026
35.1%Verified-email coverage
16.2Average contacts per company
11-50Median size (employees)
2.7%Largest-city concentration · Broomfield
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
51
11-50
36
51-200
20
201-500
2
501-1,000
1
10001+
1

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 112 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 non-gmo seed companies, 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 “non-gmo seed companies”. 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 non-gmo seed companies), 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 non-gmo seed companies, 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, 636 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 20, 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 non-gmo seed companies, 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 non-gmo seed companies are there based in the United States?

RevenueBase identified 112 non-gmo seed companies 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?

Johnny's Selected Seeds, headquartered in Winslow, tops this list with the largest team on record.

Which city has the most non-gmo seed companies?

Broomfield leads with 3 headquartered companies, followed by Denver (3) and Miami (2).

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 636 verified decision-maker contacts tracked across these 112 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 20, 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.