What Wepco Plastics does

Wepco Plastics is a family-owned plastic injection molding manufacturer headquartered in Middlefield, Connecticut, founded by Wally Parmelee in the mid-1980s. The company provides a vertically integrated suite of services spanning concept design, 3D printing, in-house tooling (aluminum and hardened steel), plastic injection molding for short-to-medium production runs, light assembly and overmolding, and EOS-brand additive manufacturing. Its core technology centers on rapid 3-week prototype tooling, 4-axis aerospace machining for fixturing and secondary operations, scientific molding methodology, and a stated 50,000-part production guarantee. The company also deploys Industry 4.0 integration, with IoT-connected machines streaming cycle, temperature, and pressure data into its ERP system for real-time monitoring.

The firm operates a project-based B2B services model, generating revenue through one-off tooling sales and custom molding contracts. Pricing is fully custom and quote-based, with aluminum tooling priced up to $10,000 (2-3 week lead time) and hardened steel tooling up to $50,000 (6-8 week lead time). Customer acquisition is driven by direct sales targeting enterprise manufacturers in the greater New England region, supplemented by content marketing through its 'Injecting Our Opinion' blog and social channels, plus memberships in MAPP, AMBA, CBIA, Connstep, ManufactureCT, and CCAT industry associations. The company serves customers across more than 10 industrial verticals, including aerospace, with a stated focus on product developers and industrial manufacturers requiring rapid prototyping and low-to-medium volume production.

Following a 2016 generational leadership transition from founder Wally Parmelee to his son David, Wepco implemented the EOS (Traction) operating system, restructured its mold room scheduling from two 8-hour shifts to two 10-hour shifts over four days (yielding an 18% capacity uplift and a 4% energy-cost reduction), and launched a culture transformation initiative in Q2 2018 with the Connecticut Center for Advanced Technology focused on retention, diversity, and inclusion. The company remains privately held under continuous Parmelee family ownership, with no institutional investment, funding rounds, or acquisition activity disclosed.

Name

Wepco Plastics

Legal name

Wepco Plastics, Inc.

Website

https://wepcoplastics.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

Wepco Plastics is a family-owned precision injection molder in Middlefield, Connecticut, providing design, 3D printing, in-house aluminum and steel tooling, and short-to-medium run plastic injection molding services to manufacturers across the greater New England region.

Ownership category

akta.pro rank

Product category

Custom Plastic Injection Molding

NAICS

Plastics Product Manufacturing (3261), Industrial Mold Manufacturing (333511), Plastics and Rubber Products Manufacturing (326)

SIC

Plastics Products, Nec (3089)

akta.pro primary industry

Custom Injection Molding & Contract Manufacturing (Job Shops/CMs) (IMANAFAJ)

akta.pro secondary industries

Precision & Micro Injection Molding (IMANAFAH), Automotive & Transportation Injection Molded Parts (IMANAFAB)

Keywords

• Plastic injection molding
• Prototype tooling
• Custom moldmaking
• 3D printing services
• Contract manufacturing

Headquarters

HQ city

Middlefield

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Injection Molding Production: Short-to-medium run plastic injection molding services. Custom project-based pricing based on material selection, part complexity, and annual quantities. Services include design, 3D printing, tooling, molding, and assembly operations.
2. Prototype Services: 3-week prototype development and aluminum tooling services for product development validation before production tooling investment.
3. Tooling Services: In-house mold building capabilities including aluminum and hardened steel tooling with different cost and lead time options based on production volume requirements.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

Wepco Plastics designs and manufactures precision molds and produces plastic injection molded parts as a one-stop provider for manufacturers. The company offers in-house design, 3D printing, aluminum and steel tooling, and short-to-medium run injection molding (up to 100,000-200,000 parts), with a 3-week prototype tooling turnaround and a 50,000-part guarantee. It serves over 10 industries across the greater New England region with capabilities including 4-axis aerospace machining, fixturing, secondary operations, and light assembly.

Product overview

Wepco Plastics is a family-owned plastic injection molding company offering a one-stop solution for plastic part manufacturing. The core service portfolio includes Design Services, 3D Printing, In-House Tooling (aluminum and steel moldmaking), and Plastic Injection Molding, all connected through a streamlined process from concept through part production. Additional offerings include EOS additive manufacturing and Scientific Molding methodology. The company specializes in rapid 3-week prototype tooling and short-to-medium run production (up to 50,000 parts) with in-house capabilities spanning 4-axis aerospace machining, fixturing, and secondary operations.

Differentiator

Problem solved

Functional benefit

Products and services

• Design Services Concept-to-prototype design services guiding customers through part design, including cosmetics, functionality, fit, and material selection optimization, delivered as a service to manufacturers developing new plastic parts.
• 3D Printing Services Rapid prototyping via 3D printing used to test fit and functionality prior to investing in mold building, reducing upfront costs for product developers and manufacturers.
• Tooling (In-House Moldmaking) In-house mold building capabilities including aluminum and hardened steel tooling, 4-axis aerospace machining, fixturing, and secondary operations, with 3-week prototype tooling turnaround for manufacturers.
• Plastic Injection Molding 3-week prototype and short-to-medium run plastic injection molding with light assembly, inserting, and overmolding capabilities, including a 50,000-part guarantee and a 100,000-200,000 part capability for aluminum tooling runs.
• EOS Additive Manufacturing Services Additive manufacturing services using EOS 3D printing technology for prototype and production parts, available to manufacturers seeking industrial-grade 3D printed plastic components.

Quantifiable outcome

• Daily production capacity increased by over 18% through shift optimization
• +4 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature7 records

Partnerships

Seven partnerships are on record, tiered minor and core.

• MAPP (Manufacturing Association of Plastics Professionals)minorOthersIndustry association membership providing networking opportunities and industry resources for plastics manufacturing professionals.
• ConnstepminorOthersConnecticut manufacturing association membership for industry collaboration and resources.
• CBIA (Connecticut Business & Industry Association)minorOthersState business association membership providing advocacy and networking for Connecticut manufacturers.
• AMBA (American Mold Builders Association)minorOthersNational association for mold builders providing industry standards, training, and networking.
• CCAT (Connecticut Center for Advanced Technology)coreStrategic or Co-development PartnerCCAT partnered with Wepco on a Job Quality Initiative funded by Workforce Solutions Collaborative of Metro Hartford in Q2 2018, focused on retention, diversity and inclusion. CCAT assisted in creating employee surveys to assess company culture and develop improvement plans.
• ManufactureCTminorOthersConnecticut manufacturing initiative membership for industry collaboration and workforce development.
• AMEPminorOthersAdvanced Manufacturing Employer Partnership for workforce development and industry collaboration.

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Regional players

• Stack Plastics: West Coast-based custom injection molder with rapid prototyping capabilities. Comparable in scale and short-run focus to Wepco but serves a different regional customer base.
• Mack Molding: Northeast-based contract manufacturer offering injection molding, machining, and assembly. Geographically comparable to Wepco in the New York/New England region with similar mid-market industrial customer base.

Direct peers

• Plethora: Custom injection molding and CNC machining service provider focused on rapid prototyping and low-volume production. Closely comparable to Wepco on customer profile and short-run service model.
• Xometry: On-demand manufacturing marketplace offering custom injection molding, CNC machining, and 3D printing. Competes for the same prototype-to-production RFQs Wepco targets, with broader geographic reach and instant-quoting technology.
• Protolabs: Largest digital manufacturer of custom prototypes and low-volume production parts, including injection molding. Competes directly with Wepco on rapid prototyping and short-run injection molding for industrial customers, though at significantly larger scale.
• Fictiv: Digital manufacturing platform providing custom injection molding, CNC, and 3D printing services. Targets the same product developer and low-volume production customer as Wepco with a software-led approach to sourcing.
• C&M Plastics: Custom injection molder serving industrial and consumer customers with prototyping through production runs. Comparable scale and service offering to Wepco in custom contract manufacturing.

Broad incumbents

• EVCO Plastics: Large custom plastic injection molder with global footprint serving medical, industrial, and consumer markets. Operates at significantly larger scale than Wepco with broader capabilities including insert molding and assembly.
• Tessy Plastics: Established custom injection molder with multiple facilities serving medical, automotive, and industrial OEMs. Larger-scale competitor with deeper engineering resources and higher-volume capabilities than Wepco.
• Phillips Plastics (Molex): Acquired by Molex, Phillips was a major custom injection molder serving medical, automotive, and industrial markets. Now part of Molex's broader connectivity solutions portfolio, representing the kind of scaled incumbent Wepco competes against for larger programs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/wepcoplastics
• YouTubeyoutube.com/channel/UCELi_2SJLU4FZYoL9tBxd-g
• Facebookfacebook.com/wepcoplastics
• LinkedInlinkedin.com/company/wepco-plastics-inc-

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Wepco Plastics