Company lists · Data refreshed September 2026

Top 24 Rotomolded plastic manufacturers based in the United States

RevenueBase identified 88 rotomolded plastic manufacturers headquartered in the United States as of September 2026 and tracks 1,392 professional contacts across them, including 303 with verified work emails. Ashland is the largest hub.

This list covers rotomolded plastic 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
88Companies
1,392Contacts tracked
303Verified emails
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The 24 largest rotomolded plastic manufacturers based in the United States

Ranked by team size
Top 24 of 88 rotomolded plastic 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 rotomolded plastic 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceBristol, IN, United StatesHQ checked Sep 17, 2026501-1,000189 contacts →

Partial evidence

“Elkhart Plastics, a Myers Industries company (NYSE: MYE), founded in 1988, is one of the largest custom rotational molding companies in the United States.”

Source: RevenueBase Database · checked Sep 17, 2026
2Strong evidenceDelano, MN, United StatesHQ checked Sep 17, 20261,001-5,00083 contacts →

Strong evidence

“Solar Plastics, LLC, the technology leader in rotomolding fuel tanks, has developed solutions for low permeation resist fuel tanks.”

Source: RevenueBase Database · checked Sep 17, 2026
3Partial evidenceOostburg, WI, United StatesHQ checked Sep 17, 2026201-50080 contacts →

Partial evidence

“Whether it’s the size of your plastic product or the need to scale your production quickly, Dutchland gives your company the ability to Go BIG.”

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidenceAlliance, OH, United StatesHQ checked Sep 17, 2026201-50058 contacts →

Partial evidence

“Myer | Trilogy Plastics, a Myers Industries Company (NYSE: MYE), founded in 1987, is a U.S.”

Source: RevenueBase Database · checked Sep 17, 2026
5Partial evidenceFountain, CO, United StatesHQ checked Sep 17, 202651-20057 contacts →

Partial evidence

“RMB Products uses proprietary plastic resins to create corrosion-resistant equipment liners, engineer complex aircraft parts, and produce high purity storage containers.”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidenceAshland, OH, United StatesHQ checked Sep 17, 202651-20053 contacts →

Partial evidence

“HEDSTROM® Plastics has one of the most modern rotational molding facilities in North America.”

Source: RevenueBase Database · checked Sep 17, 2026
7Strong evidenceReading, PA, United StatesHQ checked Sep 17, 202651-20040 contacts →

Strong evidence

“Remcon Plastics Inc is a leading manufacturer of rotationally molded plastic products, specializing in the custom molding, material handling and safety products industries.”

Source: RevenueBase Database · checked Sep 17, 2026
8Indirect evidenceSt. Bonifacius, MN, United StatesHQ checked Sep 17, 202651-20039 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceLitchfield, MN, United StatesHQ checked Sep 17, 202651-20027 contacts →

Indirect evidence

“GVL Poly is a Midwest-based leader in rotational molding, delivering durable, precision-molded components since 1992.”

Source: RevenueBase Database · checked Sep 17, 2026
10Partial evidencePlainfield, IN, United StatesHQ checked Sep 17, 202611-5026 contacts →

Partial evidence

“Integrity Rotational Molding is a plastic manufacturing company utilizing the rotational molding process which provides our customers with extremely durable, stress free, and…”

Source: RevenueBase Database · checked Sep 17, 2026
11Indirect evidenceLake Wales, FL, United StatesHQ checked Sep 17, 202651-20021 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
12Indirect evidenceKansas City, MO, United StatesHQ checked Sep 17, 202611-5019 contacts →

Indirect evidence

“Forte Products is a company based out of Kansas City, Missouri, United States.”

Source: RevenueBase Database · checked Sep 17, 2026
13Indirect evidenceWoburn, MA, United StatesHQ checked Sep 17, 202651-20017 contacts →

Indirect evidence

“Gregstrom Corporation is a custom rotational molder and heavy gauge thermoformer that adds value to your projects.”

Source: RevenueBase Database · checked Sep 17, 2026
14Partial evidenceFort Worth, TX, United StatesHQ checked Sep 17, 202611-5017 contacts →

Partial evidence

Plastic-Mart launched its online presence in 2004 to offer wholesalers and consumers a one-stop shopping site for all types of rotational mold plastic storage and transportation…”

Source: RevenueBase Database · checked Sep 17, 2026
15Strong evidenceLake Mills, WI, United StatesHQ checked Sep 17, 202651-20016 contacts →

Strong evidence

“Horizon is a leading manufacturer of rotational molded plastic products and tooling.”

Source: RevenueBase Database · checked Sep 17, 2026
16Indirect evidencePlainfield, IN, United StatesHQ checked Sep 17, 202611-5016 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
17Partial evidenceBurgettstown, PA, United StatesHQ checked Sep 17, 202611-5016 contacts →

Partial evidence

“Miller Plastic Products precision-machines and fabricates plastic products and components, including Chemical Tanks, Pipe Systems, Custom Filtration Systems, Duct Work & Fume…”

Source: RevenueBase Database · checked Sep 17, 2026
18Partial evidenceCarle Place, United StatesHQ checked Sep 17, 202651-20015 contacts →

Partial evidence

“Formed Plastics is a leader in rotational molding, thermoforming, and fabrication of custom plastic parts.”

Source: RevenueBase Database · checked Sep 17, 2026
19Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202611-5015 contacts →

Partial evidence

“Geo Plastics is a mechanical or industrial engineering company based out of 2200 E 52nd St, Los Angeles, California, United States.”

Source: RevenueBase Database · checked Sep 17, 2026
20Partial evidenceGarrett, IN, United StatesHQ checked Sep 17, 202611-5014 contacts →

Partial evidence

“Assmann Corporation is a manufacturer of rotationally molded tanks, ranging from 40 to gallons, engineered and processed for the most challenging chemical handling and storage…”

Source: RevenueBase Database · checked Sep 17, 2026
21Indirect evidenceNoblesville, IN, United StatesHQ checked Sep 17, 202651-20014 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
22Strong evidenceSmithfield, NC, United StatesHQ checked Sep 17, 202651-20014 contacts →

Strong evidence

“EnviCor Rotomolding is a leading custom rotational molding manufacturer committed to delivering high-quality, precision-engineered plastic products and comprehensive molding…”

Source: RevenueBase Database · checked Sep 17, 2026
23Partial evidenceLatta, SC, United StatesHQ checked Sep 17, 202651-20013 contacts →

Partial evidence

“Since 1976, Diversified Plastics, Inc.”

Source: RevenueBase Database · checked Sep 17, 2026
24Partial evidenceMishawaka, IN, United StatesHQ checked Sep 17, 2026201-50011 contacts →

Partial evidence

“MAKS Plastics is a performance-driven plastics manufacturing partner specializing in rotational molding, thermoforming, and custom plastics manufacturing for industrial and…”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 24 of 88 rotomolded plastic manufacturers based in the United States

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Rotomolded plastic manufacturers based in the United States at a glance

As of Sep 17, 2026
21.8%Verified-email coverage
15.8Average contacts per company
11-50Median size (employees)
2.3%Largest-city concentration · Ashland
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
29
51-200
31
201-500
7
501-1,000
1
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 88 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 rotomolded plastic 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 “rotomolded plastic 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 rotomolded plastic 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 rotomolded plastic 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, 303 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 rotomolded plastic 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 rotomolded plastic manufacturers are there based in the United States?

RevenueBase identified 88 rotomolded plastic 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?

Elkhart Plastics, headquartered in Bristol, tops this list with the largest team on record.

Which city has the most rotomolded plastic manufacturers?

Ashland leads with 2 headquartered companies, followed by Bristol (2) and Kent (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 303 verified decision-maker contacts tracked across these 88 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.