Company lists · Data refreshed September 2026

Top 25 Custom plastic molders based in the United States

Name: Custom plastic molders based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,643 companies tracked

RevenueBase identified 1,643 custom plastic molders headquartered in the United States as of September 2026 and tracks 31,079 professional contacts across them, including 8,276 with verified work emails. Grand Rapids is the largest hub.

This list covers custom plastic molders 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 19, 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 19, 2026 86% judged on-target in blind review

1,643Companies

31,079Contacts tracked

8,276Verified emails

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The 25 largest custom plastic molders based in the United States

Ranked by team size

Top 25 of 1,643 custom plastic molders based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to custom plastic molders: 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	Milacron	Strong evidence	Batavia, OH, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,290 contacts →
	Strong evidence “Milacron is a global leader in the manufacture, distribution, and service of highly engineered and customized systems within the plastic technology and processing industry.” Source: RevenueBase Database · checked Sep 19, 2026
2	US Farathane	Strong evidence	Auburn Hills, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,163 contacts →
	Strong evidence “At US Farathane, we design and manufacture highly engineered plastic injection-molded components, make them available to you in a variety of sizes, shapes, and designs and supply…” Source: RevenueBase Database · checked Sep 19, 2026
3	Evco Plastics	Indirect evidence	Deforest, WI, United StatesHQ checked Sep 19, 2026	1,001-5,000	489 contacts →
	Indirect evidence “Precision.” Source: RevenueBase Database · checked Sep 19, 2026
4	Century Mold Co. INC	Strong evidence	Rochester, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	375 contacts →
	Strong evidence “Century Mold is a leading North American plastic injection molder who dominates the automotive industry.” Source: RevenueBase Database · checked Sep 19, 2026
5	Sybridge Technologies	Indirect evidence	Itasca, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	347 contacts →
	Indirect evidence “SyBridge Technologies is a full-lifecycle injection mold tooling partner trusted by leading manufacturers across healthcare, packaging, consumer goods, mobility, and industrial…” Source: RevenueBase Database · checked Sep 19, 2026
6	Plastic Products Company INC	Partial evidence	Lindstrom, MN, United StatesHQ checked Sep 19, 2026	501-1,000	347 contacts →
	Partial evidence “At Plastic Products Company (PPC), we are committed to eagerly serving your needs.” Source: RevenueBase Database · checked Sep 19, 2026
7	PEXCO	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 19, 2026	501-1,000	332 contacts →
	Partial evidence “Pexco is a leading manufacturer of high-performance plastic solutions engineered for manufacturers and end-users across North America.” Source: RevenueBase Database · checked Sep 19, 2026
8	Engineered Plastic Components	Strong evidence	West Des Moines, IA, United StatesHQ checked Sep 19, 2026	1,001-5,000	308 contacts →
	Strong evidence “EPC is your one-stop shop for your plastic injection molded products.” Source: RevenueBase Database · checked Sep 19, 2026
9	EG Industries Leader In Plastic Injection Molding, Tooling, And Automation	Indirect evidence	Circleville, OH, United StatesHQ checked Sep 19, 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 19, 2026
10	Custom-Pak, INC	Strong evidence	Clinton, IA, United StatesHQ checked Sep 19, 2026	501-1,000	198 contacts →
	Strong evidence “Plastic blow molder with full design, manufacturing and fulfillment capacities.” Source: RevenueBase Database · checked Sep 19, 2026
11	PTI Engineered Plastics	Partial evidence	Macomb, MI, United StatesHQ checked Sep 19, 2026	201-500	186 contacts →
	Partial evidence “From Mind to Manufacturing® PTI Engineered Plastics is a leading innovator that utilizes the latest advances in the field of plastic injection molding.” Source: RevenueBase Database · checked Sep 19, 2026
12	PTA Plastics	Strong evidence	Oxford, CT, United StatesHQ checked Sep 19, 2026	201-500	181 contacts →
	Strong evidence “At PTA Plastics, we are a leading custom injection molder with a passion for precision and excellence.” Source: RevenueBase Database · checked Sep 19, 2026
13	Global Plastics	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 19, 2026	201-500	162 contacts →
	Partial evidence “A full-service plastic injection molding partner providing superior solutions that redefine the meaning of successful outcomes, 70 Injection Molding presses from 40 to ton as as…” Source: RevenueBase Database · checked Sep 19, 2026
14	Teel Plastics	Strong evidence	Baraboo, WI, United StatesHQ checked Sep 19, 2026	201-500	159 contacts →
	Strong evidence “Teel Plastics is the premiere manufacturer of custom extruded plastic tubing and injection molded components, due to the expertise of their distinguished, skilled team – a group…” Source: RevenueBase Database · checked Sep 19, 2026
15	Engel North America	Partial evidence	York, PA, United StatesHQ checked Sep 19, 2026	51-200	158 contacts →
	Partial evidence “ENGEL is the reliable plastics injection molding machine manufacturer you are looking for.” Source: RevenueBase Database · checked Sep 19, 2026
16	FMT	Partial evidence	Findlay, OH, United StatesHQ checked Sep 19, 2026	51-200	153 contacts →
	Partial evidence “FMT is your strategic partner in high-quality plastic parts manufacturing.” Source: RevenueBase Database · checked Sep 19, 2026
17	Polymer Corporation	Strong evidence	Rockland, MA, United StatesHQ checked Sep 19, 2026	51-200	152 contacts →
	Strong evidence “Polymer Corporation manufactures close-tolerance plastic parts and assemblies for blue-chip customers with demanding applications worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
18	Falcon Plastics	Strong evidence	Brookings, SD, United StatesHQ checked Sep 19, 2026	201-500	146 contacts →
	Strong evidence “In 1975, a leading custom injection molding company, Falcon Plastics, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
19	Thermotech, INC	Strong evidence	Hopkins, MN, United StatesHQ checked Sep 19, 2026	501-1,000	134 contacts →
	Strong evidence “Since 1949, Thermotech has been a strategic custom injection molder of thermoplastic components specializing in tight tolerance and complex manufacturing.” Source: RevenueBase Database · checked Sep 19, 2026
20	Hi-Tech Mold & Engineering, INC	Indirect evidence	Rochester Hills, MI, United StatesHQ checked Sep 19, 2026	201-500	131 contacts →
	Indirect evidence “Hi-Tech Mold & Engineering is a family owned and operated business who values its team members' service, dedication and commitment to superior quality engineering and mold making.” Source: RevenueBase Database · checked Sep 19, 2026
21	Port Erie Plastics	Partial evidence	Harborcreek, PA, United StatesHQ checked Sep 19, 2026	201-500	130 contacts →
	Partial evidence “For more than 50 years, we have been offering complete custom injection molding solutions as a core service.” Source: RevenueBase Database · checked Sep 19, 2026
22	C&j Industries, INC	Partial evidence	Meadville, PA, United StatesHQ checked Sep 19, 2026	201-500	128 contacts →
	Partial evidence “Founded in 1962, C&J Industries has evolved into a premier all-in-one plastic injection molding company.” Source: RevenueBase Database · checked Sep 19, 2026
23	Plastic Molding Technology - Texas	Partial evidence	El Paso, TX, United StatesHQ checked Sep 19, 2026	51-200	128 contacts →
	Partial evidence “Plastic Molding Technology solves mission-critical needs to reduce supply chain risk and complexity.” Source: RevenueBase Database · checked Sep 19, 2026
24	Robin Industries, INC	Strong evidence	North Canton, OH, United StatesHQ checked Sep 19, 2026	501-1,000	128 contacts →
	Strong evidence “Custom molder of high quality elastomeric and thermoplastic components for medical, government, industrial and other markets.” Source: RevenueBase Database · checked Sep 19, 2026
25	PCS Company	Partial evidence	Fraser, MI, United StatesHQ checked Sep 19, 2026	51-200	127 contacts →
	Partial evidence “PCS Company stands for quality, expertise, innovative technology and reliable customer service.” Source: RevenueBase Database · checked Sep 19, 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: custom plastic molders. 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 custom plastic molders.
Partial evidence: Its own public description names part of custom plastic molders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom plastic molders. 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 1,643 custom plastic molders based in the United States

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Custom plastic molders based in the United States at a glance

As of Sep 19, 2026

26.6%Verified-email coverage

18.9Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Grand Rapids

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

453

11-50

654

51-200

411

201-500

501-1,000

1,001-5,000

5,001-10,000

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 1,643 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 custom plastic molders, 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 “custom plastic molders”. 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 custom plastic molders), 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 custom plastic molders, 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, 8,276 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 19, 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 custom plastic molders, 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 custom plastic molders are there based in the United States?

RevenueBase identified 1,643 custom plastic molders 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?

Milacron, headquartered in Batavia, tops this list with the largest team on record.

Which city has the most custom plastic molders?

Grand Rapids leads with 17 headquartered companies, followed by Erie (16) and Rochester (14).

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 8,276 verified decision-maker contacts tracked across these 1,643 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 19, 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.