Company lists · Data refreshed September 2026

Top 25 Rotational molding machine service companies based in the United States

RevenueBase identified 81 rotational molding machine service companies headquartered in the United States as of September 2026 and tracks 1,035 professional contacts across them, including 233 with verified work emails. Akron is the largest hub.

This list covers rotational molding machine service 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 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
81Companies
1,035Contacts tracked
233Verified emails
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The 25 largest rotational molding machine service companies based in the United States

Ranked by team size
Top 25 of 81 rotational molding machine service companies 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 rotational molding machine service 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
1Strong evidenceBristol, IN, United StatesHQ checked Sep 17, 2026501-1,000189 contacts →

Strong 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
2Indirect evidenceOostburg, WI, United StatesHQ checked Sep 17, 2026201-50080 contacts →

Indirect 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
3Indirect evidenceAlliance, OH, United StatesHQ checked Sep 17, 2026201-50058 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
4Strong evidenceAshland, OH, United StatesHQ checked Sep 17, 202651-20053 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
5Strong 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
6Strong evidenceGainesville, TX, United StatesHQ checked Sep 17, 202651-20027 contacts →

Strong evidence

“API offers rotational and custom injection molding services into the electrical utility, agricultural products, oilfield, medical device, automotive, food, and recreational boat…”

Source: RevenueBase Database · checked Sep 17, 2026
7Strong evidenceLitchfield, MN, United StatesHQ checked Sep 17, 202651-20027 contacts →

Strong 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
8Strong evidencePlainfield, IN, United StatesHQ checked Sep 17, 202611-5026 contacts →

Strong 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
9Indirect evidenceLake Wales, FL, United StatesHQ checked Sep 17, 202651-20021 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
10Indirect 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
11Partial evidenceWoburn, MA, United StatesHQ checked Sep 17, 202651-20017 contacts →

Partial 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
12Partial evidenceLake Mills, WI, United StatesHQ checked Sep 17, 202651-20016 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
13Indirect evidenceCedarburg, WI, United StatesHQ checked Sep 17, 202611-5016 contacts →

Indirect evidence

“Norstar Aluminum Molds, Inc was formed in October 1998 through a management buyout of Kelch Aluminum Molds.”

Source: RevenueBase Database · checked Sep 17, 2026
14Strong evidenceCarle Place, United StatesHQ checked Sep 17, 202651-20015 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
15Indirect evidenceCorpus Christi, TX, United StatesHQ checked Sep 17, 202651-20015 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
16Strong 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
17Indirect evidenceLatta, SC, United StatesHQ checked Sep 17, 202651-20013 contacts →

Indirect evidence

“Since 1976, Diversified Plastics, Inc.”

Source: RevenueBase Database · checked Sep 17, 2026
18Strong evidenceMishawaka, IN, United StatesHQ checked Sep 17, 2026201-50011 contacts →

Strong 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
19Indirect evidenceSpring Lake Park, MN, United StatesHQ checked Sep 17, 202651-20011 contacts →

Indirect evidence

“Aggressive Industries Inc is a plastics company based out of Spring Lake Park, Minnesota, United States.”

Source: RevenueBase Database · checked Sep 17, 2026
20Indirect evidenceLees Summit, MO, United StatesHQ checked Sep 17, 202611-509 contacts →

Indirect evidence

“High Tech Tool LLC provides maintenance services for plastics mold tooling including repair, refurbishment, and manifold maintenance.”

Source: RevenueBase Database · checked Sep 17, 2026
21Indirect evidenceHouston, TX, United StatesHQ checked Sep 17, 202611-508 contacts →

Indirect evidence

“Welcome to Texas Rotomold LLC.”

Source: RevenueBase Database · checked Sep 17, 2026
22Indirect evidenceSt Louis, MI, United StatesHQ checked Sep 17, 202611-508 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
23Partial evidenceBeaver Dam, WI, United StatesHQ checked Sep 17, 202611-507 contacts →

Partial evidence

“T3 Manufacturing is a world-class custom rotational molder.”

Source: RevenueBase Database · checked Sep 17, 2026
24Partial evidenceKent, OH, United StatesHQ checked Sep 17, 202611-507 contacts →

Partial evidence

“AKRO-PLASTICS is a leader in the rotational molded plastics industry because of our commitment to providing high quality products and services.”

Source: RevenueBase Database · checked Sep 17, 2026
25Indirect evidenceAshland, OH, United StatesHQ checked Sep 17, 202611-506 contacts →

Indirect evidence

“At Mid-Ohio Rotomolding, we take great pride in our commitment to delivering high-quality products and timely services to our valued clientele.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 81 rotational molding machine service companies based in the United States

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Rotational molding machine service companies based in the United States at a glance

As of Sep 17, 2026
22.5%Verified-email coverage
12.8Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · Akron
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
27
51-200
27
201-500
6
501-1,000
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 81 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 rotational molding machine service 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 “rotational molding machine service 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 rotational molding machine service 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 rotational molding machine service 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, 233 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 rotational molding machine service 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 rotational molding machine service companies are there based in the United States?

RevenueBase identified 81 rotational molding machine service 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?

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

Which city has the most rotational molding machine service companies?

Akron leads with 2 headquartered companies, followed by Ashland (2) and Houston (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 233 verified decision-maker contacts tracked across these 81 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.