Company lists · Data refreshed September 2026

Top 25 Custom injection molding companies based in Canada

RevenueBase identified 216 custom injection molding companies headquartered in Canada as of September 2026 and tracks 3,311 professional contacts across them, including 817 with verified work emails. Windsor is the largest hub.

This list covers custom injection molding companies headquartered in Canada, 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
216Companies
3,311Contacts tracked
817Verified emails
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The 25 largest custom injection molding companies based in Canada

Ranked by team size
Top 25 of 216 custom injection molding companies based in Canada, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to custom injection molding 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
1Indirect evidenceWaterloo, ON, CanadaHQ checked Sep 19, 2026501-1,000163 contacts →

Indirect evidence

“Mitchell Plastics is a leading tier one supplier of automotive interior mechanisms and decorative components.”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceMidland, ON, CanadaHQ checked Sep 19, 2026201-50095 contacts →

Partial evidence

“Since 1946 we have delivered high-quality custom-molded plastic components to our global customers.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceMississauga, CanadaHQ checked Sep 19, 2026201-50095 contacts →

Partial evidence

“Gracious Living Innovations (GLI) has a history of helping our customers discover unique and innovative possibilities in plastic extrusion.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceOldcastle, ON, CanadaHQ checked Sep 19, 2026201-50094 contacts →

Indirect evidence

“Solutions for Plastic Products.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceMississauga, ON, CanadaHQ checked Sep 19, 202651-20064 contacts →

Indirect evidence

“In business since 1964, TGM has built a reputation of Quality, Integrity and Technology.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceEast Farnham, QC, CanadaHQ checked Sep 19, 202611-5060 contacts →

Indirect evidence

“ROTOPLAST, le spécialiste en moulage par rotation Fondée en 1994, ROTOPLAST œuvre dans le domaine du plastique et utilise le procédé de moulage par rotation (rotomoulage).”

Source: RevenueBase Database · checked Sep 19, 2026
7Strong evidenceCobourg, ON, CanadaHQ checked Sep 19, 202651-20059 contacts →

Strong evidence

“About Core Molding technologies has a proven track record of molding custom plastic parts for individuals with big ideas and companies looking for easier, cost efficient…”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceLevis, QC, CanadaHQ checked Sep 19, 202651-20055 contacts →

Indirect evidence

“For more details, visit us at: https://tiboplastics.com/ Why TIBO?”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceWallaceburg, ON, CanadaHQ checked Sep 19, 2026201-50055 contacts →

Partial evidence

“Builders of Plastic Injection, Die Cast and production machining.”

Source: RevenueBase Database · checked Sep 19, 2026
10Strong evidenceOldcastle, ON, CanadaHQ checked Sep 19, 202651-20055 contacts →

Strong evidence

“Hawk Plastics Plastic Injection Molding We proudly meet the demands and certifications for the Automotive industry, we also mold fun consumer products.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceSaint Hyacinthe, QC, CanadaHQ checked Sep 19, 202651-20053 contacts →

Indirect evidence

“De la commodité à la résine d’ingénierie, VIF a l’expertise et la capacité de concrétiser vos idées, vos produits.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceOro-medonte, ON, CanadaHQ checked Sep 19, 202651-20051 contacts →

Partial evidence

“MPC was established in 1980 to satisfy the requirement for a responsive prototype molding shop specializing in high quality plastic parts such as gears and complex assemblies.”

Source: RevenueBase Database · checked Sep 19, 2026
13Strong evidenceSaint-jean-port-joli, QC, CanadaHQ checked Sep 19, 202651-20050 contacts →

Strong evidence

“For the past 50 years, Plastiques Gagnon has specialized in plastic injection molding.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceSainte-claire, QC, CanadaHQ checked Sep 19, 2026201-50050 contacts →

Indirect evidence

“PCM is a world class leader in design and fabrication of prototypes, molds and specialized tooling.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceWinnipeg, MB, CanadaHQ checked Sep 19, 202651-20049 contacts →

Partial evidence

“As Leaders in Engineering Plastics Solutions, the Melet team is dedicated to engineering custom plastic products that meet the needs of Original Equipment Manufacturers.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceWindsor, ON, CanadaHQ checked Sep 19, 202651-20047 contacts →

Indirect evidence

“Advantage supports rapid prototype, true production intent prototype and limited production of plastic and sheet metal products.”

Source: RevenueBase Database · checked Sep 19, 2026
17Strong evidenceKitchener, ON, CanadaHQ checked Sep 19, 202651-20044 contacts →

Strong evidence

“Onward Plastics is a custom plastic injection moulding company with two locations.”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceEdmonton, AB, CanadaHQ checked Sep 19, 202651-20040 contacts →

Partial evidence

“Drader Manufacturing is a full service injection molder and extruder with in-house design team, mold-making, tool and die fabrication abilities.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceMontreal, QC, CanadaHQ checked Sep 19, 2026201-50039 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceWindsor, ON, CanadaHQ checked Sep 19, 202651-20039 contacts →

Indirect evidence

“Founded in 2021, NextGen has quickly become a leading player in the mold industry.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceMagog, QC, CanadaHQ checked Sep 19, 202651-20039 contacts →

Indirect evidence

“LEFKO Plastic Products Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceSaint-damien, QC, CanadaHQ checked Sep 19, 2026501-1,00036 contacts →

Partial evidence

“Plastiques Moore est un leader innovateur dans la gestion de projets complexes de conception, moulage par injection de produits de plastique de qualité sur le marché…”

Source: RevenueBase Database · checked Sep 19, 2026
23Strong evidenceMontreal, QC, CanadaHQ checked Sep 19, 202651-20036 contacts →

Strong evidence

“Unicor Industries is a custom injection molding manufacturer serving multinational companies across North America since 1971.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceWindsor, ON, CanadaHQ checked Sep 19, 202611-5036 contacts →

Indirect evidence

“Stratus Plastics International Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceWaterloo, ON, CanadaHQ checked Sep 19, 202651-20035 contacts →

Indirect evidence

“Headquartered in Waterloo, Ontario with facilities in Batavia, Illinois, ODC Tooling & Molds specializes in Thermoformed Packaging Tooling, Automotive Tooling, Stand Alone…”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 216 custom injection molding companies based in Canada

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Custom injection molding companies based in Canada at a glance

As of Sep 19, 2026
24.7%Verified-email coverage
15.3Average contacts per company
11-50Median size (employees)
9.3%Largest-city concentration · Windsor
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
53
11-50
89
51-200
56
201-500
11
501-1,000
4
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 216 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 injection molding 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 Canada whose own description of what they do matches “custom injection molding 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 custom injection molding 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 custom injection molding companies, and records with no verified work email. Companies headquartered outside Canada 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, 817 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 injection molding 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 custom injection molding companies are there based in Canada?

RevenueBase identified 216 custom injection molding companies headquartered in Canada 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?

Ultra Manufacturing, headquartered in Waterloo, tops this list with the largest team on record.

Which city has the most custom injection molding companies?

Windsor leads with 20 headquartered companies, followed by Mississauga (10) and Oldcastle (7).

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 817 verified decision-maker contacts tracked across these 216 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.