Company lists · Data refreshed October 2026

Top 25 Polyurethane plastic injection molding services based in the United States

RevenueBase identified 440 company matches for polyurethane plastic injection molding services associated with the United States as of October 2026 and tracks 7,966 professional contacts across them, including 1,838 with verified work emails. Longmont is the largest hub.

This list covers company matches for polyurethane plastic injection molding services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 28, 2026 How this list was built
440Companies
7,966Contacts tracked
1,838Verified emails
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The 25 largest polyurethane plastic injection molding services based in the United States

Ranked by team size
Top 25 of 440 company matches for polyurethane plastic injection molding services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDeforest, WI, United StatesHQ recorded Oct 28, 20261,001-5,000504 contacts →

Exact match

“Precision.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
2Exact matchRochester, NY, United StatesHQ recorded Oct 28, 20261,001-5,000393 contacts →

Exact match

“Century Mold is a leading North American plastic injection molder who dominates the automotive industry.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
3Exact matchWest Des Moines, IA, United StatesHQ recorded Oct 28, 20261,001-5,000315 contacts →

Exact match

“EPC is your one-stop shop for your plastic injection molded products.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
4Exact matchIndianapolis, IN, United StatesHQ recorded Oct 28, 2026201-500178 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
5Exact matchBrookings, SD, United StatesHQ recorded Oct 28, 2026201-500151 contacts →

Exact match

“In 1975, a leading custom injection molding company, Falcon Plastics, Inc.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
6Exact matchHopkins, MN, United StatesHQ recorded Oct 28, 2026501-1,000144 contacts →

Exact match

“Since 1949, Thermotech has been a strategic custom injection molder of thermoplastic components specializing in tight tolerance and complex manufacturing.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
7Exact matchHarborcreek, PA, United StatesHQ recorded Oct 28, 2026201-500132 contacts →

Exact match

“For more than 50 years, we have been offering complete custom injection molding solutions as a core service.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
8Exact matchEl Paso, TX, United StatesHQ recorded Oct 28, 202651-200132 contacts →

Exact match

“Plastic Molding Technology solves mission-critical needs to reduce supply chain risk and complexity.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
9Exact matchRochester, NY, United StatesHQ recorded Oct 28, 2026201-500114 contacts →

Exact match

“Leading design and builder of injection molding tools, injection molding of plastics parts, and simple to complex assemblies including value added processes such as hot stamping…”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
10Exact matchZeeland, MI, United StatesHQ recorded Oct 28, 2026201-500105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
11Exact matchSpring Lake, MI, United StatesHQ recorded Oct 28, 202651-20096 contacts →

Exact match

“Custom Injection Molding Automatic Molding - Tight Tolerance Molding - Two Shot (2K) Molding - Insert Molding - Class Clean Room Assembly - Sonic Welding - Robotic Assembly -…”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
12Exact matchMentor, OH, United StatesHQ recorded Oct 28, 2026201-50093 contacts →

Exact match

“Royal plastics is a competitive and innovative custom injection molder.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
13Exact matchClearwater, FL, United StatesHQ recorded Oct 28, 2026201-50090 contacts →

Exact match

“TSE specializes in Urethane and Machined Plastic.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
14Exact matchWebster City, IA, United StatesHQ recorded Oct 28, 202651-20080 contacts →

Exact match

“Vantec is a custom plastic injection molder and value-added services provider, which specializes in solving our customer’s problems and needs.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
15Exact matchEllington, CT, United StatesHQ recorded Oct 28, 202651-20079 contacts →

Exact match

“Dymotek Plastic Injection Molding: world class molding solutions right in CT!”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
16Exact matchMaple Grove, MN, United StatesHQ recorded Oct 28, 202651-20077 contacts →

Exact match

“For over 60 years, we have continued to expand our capabilities and focus on satisfying our customer's needs.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
17Exact matchElk Grove Village, IL, United StatesHQ recorded Oct 28, 202651-20077 contacts →

Exact match

“Custom Plastics is your "One-Stop-Shop" for injection molding, profile extrusion, value-added processes, assembly, packaging and more.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
18Exact matchAkron, OH, United StatesHQ recorded Oct 28, 202651-20071 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
19Exact matchOpelika, AL, United StatesHQ recorded Oct 28, 202651-20066 contacts →

Exact match

“Cumberland Plastic Solutions is a world-class custom injection molder founded in 2006 and located in Opelika, AL.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
20Exact matchLong Beach, CA, United StatesHQ recorded Oct 28, 202651-20063 contacts →

Exact match

“Custom injection molding, tooling, product development, prototypes, material formulations, application analysis”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
21Exact matchMacedonia, OH, United StatesHQ recorded Oct 28, 202651-20059 contacts →

Exact match

“Your complex plastic molding projects - SOLVED!”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
22Exact matchHemet, CA, United StatesHQ recorded Oct 28, 202651-20055 contacts →

Exact match

“Ramko Injection is a company based out of Hemet, California, United States.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
23Exact matchMchenry, IL, United StatesHQ recorded Oct 28, 202651-20054 contacts →

Exact match

“Since 1967 Plaspros has been providing the plastics industry with high quality custom injection molding at an affordable price.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
24Exact matchElgin, IL, United StatesHQ recorded Oct 28, 202651-20053 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase
25Exact matchMinneapolis, MN, United StatesHQ recorded Oct 28, 202651-20052 contacts →

Exact match

“Any molder can purchase the latest equipment and technology, yet Steinwall also emphasizes the human element to ensure the best overall customer experience.”

Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase

Showing 25 of 440 polyurethane plastic injection molding services based in the United States

See the full list, filter by size, metro and specialty, and access 1,838 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Polyurethane plastic injection molding services based in the United States at a glance

As of Oct 28, 2026
23.1%Verified-email coverage
18.1Average contacts per company
11-50Median size (employees)
1.1%Largest-city concentration · Longmont
Oct 28, 2026Page data refreshed

Companies by employee count

1-10
104
11-50
178
51-200
125
201-500
25
501-1,000
4
1,001-5,000
3

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 440 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “polyurethane plastic injection molding services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,838 professional contacts with verified work emails across the full matched dataset. 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 October 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “polyurethane plastic injection molding services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many polyurethane plastic injection molding services are there based in the United States?

RevenueBase identified 440 company matches for polyurethane plastic injection molding services associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Evco Plastics tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most polyurethane plastic injection molding services?

Longmont leads with 5 company records, followed by St. Louis (5) and Anaheim (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,838 professional contacts with verified work emails tracked across these 440 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 440 polyurethane plastic injection molding services based in the United States. Start with a free account, no credit card.

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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 SmartSearch, 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.