Your strategic partner in plastics
innovation – since 1965
We are ready to help design and build your most complex injection molded parts. From ideation and engineering design review to tool build, project completion, and ongoing production support, you can trust CPI to deliver reliable technical injection molding solutions.
WHO WE ARE
Custom Plastics International (CPI) is not your
typical commodity plastics manufacturer; we are your strategic partner in plastics innovation. We help design, engineer, build and manufacture complex injection molded parts – leveraging over 60 years of expertise to drive innovation.
We leverage our advanced engineering expertise and high level of quality control to deliver impactful technical solutions that drive customer success through flexible, responsive collaboration. Customers value our stability, decades of industry experience, highly skilled team, and our industry-leading processes. We invest in cutting-edge technology, state-of-the-art equipment, and skilled staff to deliver strategic manufacturing solutions.
OUR HISTORY
Founded in 1965 in Cobourg, Ontario, Canada, Custom Plastics continues to utilize our hands-on management style and technical expertise to build a loyal customer base that supports our sustainable company growth today and into the future.
Company highlights
Injection Molding Equipment
35-500
Clamp
Tonnage
Tool Design & commissioning
Solid local and
offshore partners
IN-HOUSE
TOOL ROOM
BUILD AND REPAIR TOOLING
ON-SITE
ISO 9001:2015 AND
CGP REGISTERED
QUALITY PARTS YOU CAN TRUST
INDUSTRY-LEADING
ENTERPRISE RESOURCE
PLANNING (ERP) SYSTEM
WITH REAL TIME MONITORING
HIGHLY SOPHISTICATED
PROJECT MANAGEMENT TOOLS
For On Time Delivery and Project Success
continual investment
in r&d and equipment
21
Automated Injection Molding machines
SCALABLE OPERATIONS
40,000
sq. ft
(WITH ROOM TO GROW
on
8 acres of land)
SUSTAINABLE GROWTH
+70
EMPLOYEES
Strategic management with environmental awareness
Our Expertise
Whether your products have simple or complex geometries, our injection molding capabilities allow us to consistently produce durable, precision, thermoplastic products. Our advanced molding approach and internal processes ensure unwavering quality and reliability across all production runs.
From initial concept to final validation, we offer comprehensive tool design and commissioning services. Our team uses detailed checklists and industry standards to optimize tooling for longevity, accuracy, and efficiency.
From the addition of a single threaded insert to multi-level assemblies & post-mold decoration/finishing processes, CPI has decades of experience adding value to plastic parts. We do not shy away from a challenge; our advanced assembly techniques and automation ensure efficient, high-quality finishing on every project.
Since 1965, CPI has been dedicated to supporting our customers through every phase of the production process, from early design consultation to full program management. Our collaborative approach ensures we exceed customer requirements with precision and diligence every time.
Our LEADERSHIP TEAM
By cultivating a team of passionate, driven individuals and providing them with the tools and opportunities to thrive, we ensure that CPI remains a leader in the injection molding industry.
JIM
MAJURY
VP, GENERAL MANAGER
Jim Majury holds a B.A.Sc. in Mechanical Engineering (P.Eng.) from the University of Waterloo and brings 35+ years of experience in plastics manufacturing. As Vice President & General Manager, he provides strategic leadership across operations, finance and IT, supply chain, quality, engineering, and HR, ensuring alignment with the company’s long-term growth objectives.
With strong financial and operational acumen, Jim drives profitability, efficiency, and regulatory compliance while fostering a culture of innovation, accountability, and continual improvement.
His expertise in quality management systems, health and safety certification, and process optimization enhances performance across all areas of the business. A skilled negotiator and problem-solver, Jim’s collaborative leadership approach empowers teams to navigate complex challenges and deliver high-quality, reliable solutions that drive long-term customer success.
KELSON
LACHANCE
VP, ENGINEERING MANAGER
With over 30 years of experience in plastics engineering and a B.E.Sc. in Mechanical Engineering from the University of Western Ontario, Kelson Lachance, P.Eng., drives innovation in tooling, automation, and scientific injection molding at Custom Plastics International. He specializes in optimizing processes for precision, efficiency, and reliability, helping customers turn concepts into scalable, manufacturable products.
Kelson leads a highly skilled engineering team, ensuring that every project is supported by cutting-edge technology and best-in-class manufacturing practices. He works closely with customers to bridge the gap between ideation and production, delivering high-quality, cost-effective solutions that support long-term success.
LEE
CATTELL
VP, SALES
With over 30 years of experience in engineering sales and manufacturing within the plastics industry, Lee Cattell specializes in cost-effective solutions, thermoplastic selection, and process optimization. A Fleming College graduate, he began his career in advanced assembly, motion and time studies, and process improvement, before transitioning to sales in 2000.
Lee applies Kaizen methodologies and cost-reduction strategies to help customers maximize efficiency and performance. He combines his technical expertise and customer-focused approach to guide clients through material selection, design optimization, and manufacturing efficiencies, ensuring tailored injection molding solutions.
Committed to building long-term, strategic relationships based on trust, transparency, and collaboration, Lee plays a key role in helping CPI deliver high-quality, scalable solutions that drive customer success.
Cultivating Innovation
Custom Plastics International (CPI) is not your typical commodity plastics manufacturer; we are your strategic partner in plastics innovation, ready to help design and build your most complex injection molded parts.
We are always looking for top talent to join our growing team.
With no current openings, we welcome resumes for future consideration.
Contact us with your resume.