Company lists · Data refreshed September 2026

Top 25 Plastic gear manufacturers based in the United States

Name: Plastic gear 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 30, 2026 235 companies tracked

RevenueBase identified 235 plastic gear manufacturers headquartered in the United States as of September 2026 and tracks 5,612 professional contacts across them, including 1,565 with verified work emails. Chicago is the largest hub.

This list covers plastic gear 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 30, 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 30, 2026 86% judged on-target in blind review

235Companies

5,612Contacts tracked

1,565Verified emails

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The 25 largest plastic gear manufacturers based in the United States

Ranked by team size

Top 25 of 235 plastic gear manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to plastic gear 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	Royal Technologies Corp	Indirect evidence	Hudsonville, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	492 contacts →
	Indirect evidence “Royal Technologies is an advanced engineering and manufacturing company serving industries as diverse as automotive, furniture, and consumer products.” Source: RevenueBase Database · checked Sep 30, 2026
2	Montaplast Of North America	Indirect evidence	Frankfort, KY, United StatesHQ checked Sep 30, 2026	501-1,000	399 contacts →
	Indirect evidence “Founded in 1958 by Albert Stulz Sr.” Source: RevenueBase Database · checked Sep 30, 2026
3	EG Industries Leader In Plastic Injection Molding, Tooling, And Automation	Indirect evidence	Circleville, OH, United StatesHQ checked Sep 30, 2026	501-1,000	296 contacts →
	Indirect evidence “EG Industries was founded in 1981 as a Tier 1 supplier to the automotive industry.” Source: RevenueBase Database · checked Sep 30, 2026
4	Gemini Group, INC	Partial evidence	Bad Axe, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	211 contacts →
	Partial evidence “Gemini Group is a leading supplier of engineered plastic products and metal tooling solutions.” Source: RevenueBase Database · checked Sep 30, 2026
5	Xaloy LLC	Partial evidence	Austintown, OH, United StatesHQ checked Sep 30, 2026	501-1,000	205 contacts →
	Partial evidence “Xaloy: A Global Leader in Plastics As the global leader in high-performance machinery components and equipment for the plastics industry, Xaloy has powerful resources to help…” Source: RevenueBase Database · checked Sep 30, 2026
6	Lufkin Gears	Partial evidence	Lufkin, TX, United StatesHQ checked Sep 30, 2026	501-1,000	164 contacts →
	Partial evidence “Our Lufkin Gears brand bring a deep history of industry-leading technology to demanding high-speed mechanical-drive, turbo machinery, and marine-propulsion applications.” Source: RevenueBase Database · checked Sep 30, 2026
7	Horsburgh & Scott	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 30, 2026	51-200	146 contacts →
	Partial evidence “Horsburgh & Scott, founded in 1886, is one of the world's leading providers of custom industrial gears and gearboxes.” Source: RevenueBase Database · checked Sep 30, 2026
8	Quantum Plastics	Partial evidence	Ft. Smith, AR, United StatesHQ checked Sep 30, 2026	501-1,000	137 contacts →
	Partial evidence “Founded in 2014, Quantum Plastics, LLC was created as a holding company by Quantum Ventures of Michigan.” Source: RevenueBase Database · checked Sep 30, 2026
9	PENDA	Strong evidence	Portage, WI, United StatesHQ checked Sep 30, 2026	201-500	111 contacts →
	Strong evidence “Penda channels its expertise in plastics engineering and manufacturing into two market-leading businesses: Commercial Products for both Original Equipment Manufacturers (OEM) and…” Source: RevenueBase Database · checked Sep 30, 2026
10	Kaysun Corporation	Partial evidence	Manitowoc, WI, United StatesHQ checked Sep 30, 2026	201-500	95 contacts →
	Partial evidence “Established in 1946, Kaysun has become a go-to partner for the design and development of highly engineered plastic products and assemblies.” Source: RevenueBase Database · checked Sep 30, 2026
11	Nordson Extrusion Dies Industries, LLC	Partial evidence	Chippewa Falls, WI, United StatesHQ checked Sep 30, 2026	201-500	91 contacts →
	Partial evidence “Nordson Extrusion Dies Industries, LLC is a global supplier of tooling for the plastics processing industry.” Source: RevenueBase Database · checked Sep 30, 2026
12	Schafer Industries	Indirect evidence	South Bend, IN, United StatesHQ checked Sep 30, 2026	201-500	90 contacts →
	Indirect evidence “Unlock precision and reliability with Schafer Industries!” Source: RevenueBase Database · checked Sep 30, 2026
13	Solidify Manufacturing	Indirect evidence	Rogers, MN, United StatesHQ checked Sep 30, 2026	51-200	90 contacts →
	Indirect evidence “We are very excited to share the news regarding the recent evolution of our company.” Source: RevenueBase Database · checked Sep 30, 2026
14	Winsmith	Partial evidence	Springville, NY, United StatesHQ checked Sep 30, 2026	51-200	81 contacts →
	Partial evidence “Winsmith manufactures gearing solutions for a wide range of applications.” Source: RevenueBase Database · checked Sep 30, 2026
15	Dymotek	Partial evidence	Ellington, CT, United StatesHQ checked Sep 30, 2026	51-200	78 contacts →
	Partial evidence “Dymotek Plastic Injection Molding: world class molding solutions right in CT!” Source: RevenueBase Database · checked Sep 30, 2026
16	Brad Foote Gearing	Partial evidence	Cicero, IL, United StatesHQ checked Sep 30, 2026	201-500	65 contacts →
	Partial evidence “As an ISO 9001 registered company with an international reputation for superior quality, Brad Foote Gear Works, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
17	Aba-Pgt Incorporated	Partial evidence	Manchester, CT, United StatesHQ checked Sep 30, 2026	51-200	61 contacts →
	Partial evidence “Plastics Injection Molding, Mold Making and Engineering Services company specializing in ultra high precision molded parts for various industries including medical devices…” Source: RevenueBase Database · checked Sep 30, 2026
18	Overton Chicago Gear	Strong evidence	Addison, IL, United StatesHQ checked Sep 30, 2026	201-500	60 contacts →
	Strong evidence “With history dating to OCG manufactures large, high-precision gears that are designed to meet a wide range of requirements for the most challenging applications in the oil and…” Source: RevenueBase Database · checked Sep 30, 2026
19	Chardam Gear Company	Partial evidence	Sterling Heights, MI, United StatesHQ checked Sep 30, 2026	51-200	59 contacts →
	Partial evidence “If you have requirements for high performance gears (spur, helical or spiral bevel), splined shaft, housings, details or complete gearboxes, Chardam Gear Company can fulfill your…” Source: RevenueBase Database · checked Sep 30, 2026
20	Five Star Plastics	Partial evidence	Eau Claire, WI, United StatesHQ checked Sep 30, 2026	51-200	57 contacts →
	Partial evidence “Five Star Plastics, A Division of Intek Plastics Group is committed to innovation, quality and customer satisfaction.” Source: RevenueBase Database · checked Sep 30, 2026
21	Riley Gear Corporation	Partial evidence	Saint Augustine, United StatesHQ checked Sep 30, 2026	51-200	57 contacts →
	Partial evidence “Riley Gear Corporation develops and produces precision gears, custom gear boxes, and other power transmission components.” Source: RevenueBase Database · checked Sep 30, 2026
22	Innovative Injection Technologies	Partial evidence	West Des Moines, IA, United StatesHQ checked Sep 30, 2026	201-500	49 contacts →
	Partial evidence “i2-tech is a plastic injection molding company located at 2360 Grand Ave, West Des Moines, IA, United States.” Source: RevenueBase Database · checked Sep 30, 2026
23	Delta Gear, LLC	Partial evidence	Livonia, MI, United StatesHQ checked Sep 30, 2026	51-200	43 contacts →
	Partial evidence “Delta Gear is committed to being World Class.” Source: RevenueBase Database · checked Sep 30, 2026
24	United Gear & Assembly	Indirect evidence	Hudson, WI, United StatesHQ checked Sep 30, 2026	51-200	41 contacts →
	Indirect evidence “From Modest Beginnings to Ambitious Goals Our history spans nearly 50 years and over that time we have evolved from a small family-owned business into a multi-million dollar…” Source: RevenueBase Database · checked Sep 30, 2026
25	Lehigh Valley Plastics	Partial evidence	Bethlehem, PA, United StatesHQ checked Sep 30, 2026	51-200	39 contacts →
	Partial evidence “Lehigh Valley Plastics is a state-of-the-art machine shop, fabricator of advanced plastic components and materials.” Source: RevenueBase Database · checked Sep 30, 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: plastic gear 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 plastic gear manufacturers.
Partial evidence: Its own public description names part of plastic gear manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name plastic gear 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 235 plastic gear manufacturers based in the United States

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Plastic gear manufacturers based in the United States at a glance

As of Sep 30, 2026

27.9%Verified-email coverage

23.9Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Chicago

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 235 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 plastic gear 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 “plastic gear 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 plastic gear 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 plastic gear 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, 1,565 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 30, 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 plastic gear 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 plastic gear manufacturers are there based in the United States?

RevenueBase identified 235 plastic gear 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?

Royal Technologies Corp, headquartered in Hudsonville, tops this list with the largest team on record.

Which city has the most plastic gear manufacturers?

Chicago leads with 3 headquartered companies, followed by Dayton (3) and Livonia (3).

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 1,565 verified decision-maker contacts tracked across these 235 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 30, 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.