Company lists · Data refreshed September 2026

Top 23 Whole grain producers based in the United States

RevenueBase identified 61 whole grain producers headquartered in the United States as of September 2026 and tracks 2,394 professional contacts across them, including 594 with verified work emails. Norwalk is the largest hub.

This list covers whole grain producers 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review
61Companies
2,394Contacts tracked
594Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 23 largest whole grain producers based in the United States

Ranked by team size
Top 23 of 61 whole grain producers based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to whole grain producers: 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 evidenceMilwaukie, OR, United StatesHQ checked Sep 22, 2026501-1,000575 contacts →

Partial evidence

“Bob's Red Mill Natural Foods produces more than 400 products, including a full line of certified gluten free products and an extensive line of certified organic products.”

Source: RevenueBase Database · checked Sep 22, 2026
2Partial evidenceFostoria, OH, United StatesHQ checked Sep 22, 20261,001-5,000308 contacts →

Partial evidence

“The Mennel Milling Company is a flour milling operation that produces the best quality flour and bakery mixes that are essential to the foods people enjoy every day - from breads…”

Source: RevenueBase Database · checked Sep 22, 2026
3Strong evidenceEden Prairie, MN, United StatesHQ checked Sep 22, 2026501-1,000292 contacts →

Strong evidence

“Who We Are An Ingredient Supplier: For more than 35 years Grain Millers has been a leading manufacturer of conventional and organic whole grain ingredients used in cereals…”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceSouth San Francisco, CA, United StatesHQ checked Sep 22, 2026201-50076 contacts →

Indirect evidence

“We are bakers and innovators.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceTeutopolis, IL, United StatesHQ checked Sep 22, 202651-20065 contacts →

Indirect evidence

“Siemer Milling Company is a family-and employee-owned company.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceSan Dimas, United StatesHQ checked Sep 22, 2026201-50050 contacts →

Indirect evidence

“Organic Milling began in 1960, with a single homemade granola.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceThree Forks, MT, United StatesHQ checked Sep 22, 2026201-50043 contacts →

Indirect evidence

“Wheat Montana Farms & Bakery is a food production company based out of United States.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceNorwalk, CT, United StatesHQ checked Sep 22, 202611-5022 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
9Partial evidenceDelano, MN, United StatesHQ checked Sep 22, 202611-5010 contacts →

Partial evidence

“Red Oak's diverse line of bakery seeds, ancient grains, pulses, proteins, and starches, allows us to serve a wide range of customers in the baking, snack food, blending, milling…”

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceLouisville, CO, United StatesHQ checked Sep 22, 202651-20010 contacts →

Partial evidence

“Moxie Bread Co is a bakery/cafe and mill in Colorado, milling local and regional heirloom grains.”

Source: RevenueBase Database · checked Sep 22, 2026
11Partial evidenceWatertown, SD, United StatesHQ checked Sep 22, 202611-509 contacts →

Partial evidence

“Hesco Inc./ Dakota Organic Products is a specialty grain company with plants in South Dakota and Nebraska.”

Source: RevenueBase Database · checked Sep 22, 2026
12Strong evidenceWinthrop, WA, United StatesHQ checked Sep 22, 20261-108 contacts →

Strong evidence

“Bluebird Grain Farms is your source for the finest 100% organic ancient grains, fresh-milled flour and whole-grain blends, including mixes for great-tasting and nutritious…”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceConrad, MT, United StatesHQ checked Sep 22, 202611-507 contacts →

Indirect evidence

“Timeless Seeds is located where the Great Plains of America unfold from the Rocky Mountain Front into the renowned Golden Triangle, Montana's most productive agricultural area.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceDelta Junction, AK, United StatesHQ checked Sep 22, 20261-106 contacts →

Indirect evidence

“Welcome to the Alaska Flour Company.”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceAshkum, IL, United StatesHQ checked Sep 22, 202611-505 contacts →

Partial evidence

“Stone-ground Flours for Professional and Home Bakers Locally-Grown & Certified Organic Grains

Source: RevenueBase Database · checked Sep 22, 2026
16Strong evidenceFresno, CA, United StatesHQ checked Sep 22, 202651-2005 contacts →

Strong evidence

Producer of Quick Cooking Ancient Whole Grains.”

Source: RevenueBase Database · checked Sep 22, 2026
17Strong evidenceOakland, CA, United StatesHQ checked Sep 22, 20261-104 contacts →

Strong evidence

“Community Grains is a small and dedicated company based in Oakland, CA, offering a variety of whole grain flours, dried pastas, bread, and polenta.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceMandan, ND, United StatesHQ checked Sep 22, 202611-503 contacts →

Indirect evidence

“Premium Gold is a food production company based in Mandan, North Dakota.”

Source: RevenueBase Database · checked Sep 22, 2026
19Partial evidenceReardan, WA, United StatesHQ checked Sep 22, 20261-103 contacts →

Partial evidence

“Shepherd’s Grain was born in 2003 and carries on a tradition that reaches back generations.”

Source: RevenueBase Database · checked Sep 22, 2026
20Strong evidenceGila Bend, AZ, United StatesHQ checked Sep 22, 20261-103 contacts →

Strong evidence

“Our commitment is to develop the best tasting whole grain, nutrient dense, baking mixes.”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceMcclure, IL, United StatesHQ checked Sep 22, 202611-502 contacts →

Indirect evidence

“53% More Protein, 41 Glycemic Index Score Illinois Grown, Family-Owned & Sustainably Farmed”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceKansas City, United StatesHQ checked Sep 22, 202611-502 contacts →

Indirect evidence

“Founded in 2022, Heirloom Brands a fast growing wholesome food brand company based in Kansas City.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceLos Osos, CA, United StatesHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

“Welcome to Kandarian Organic Farms!”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 23 of 61 whole grain producers based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 594 reachable decision-makers.

Free signup · no credit card

View the full list →

Whole grain producers based in the United States at a glance

As of Sep 22, 2026
24.8%Verified-email coverage
39.2Average contacts per company
11-50Median size (employees)
4.9%Largest-city concentration · Norwalk
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
22
51-200
5
201-500
4
501-1,000
3
1,001-5,000
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 61 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 whole grain producers, 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 “whole grain producers”. 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 whole grain producers), 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 whole grain producers, 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, 594 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 whole grain producers, 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 whole grain producers are there based in the United States?

RevenueBase identified 61 whole grain producers 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?

Bob's RED Mill, headquartered in Milwaukie, tops this list with the largest team on record.

Which city has the most whole grain producers?

Norwalk leads with 3 headquartered companies, followed by Berkeley (2) and Horsham (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 594 verified decision-maker contacts tracked across these 61 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.

Ready to reach these companies? Verified emails and direct dials for all 61 whole grain producers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.