KUI CO

What KUI CO does

KUI CO., Inc. is a privately held, US-incorporated plastic injection molding services provider headquartered in San Clemente, California, founded in 1996. The company operates 25 injection molding machines ranging from 25 to 165 tons, supported by a small technical team that includes 5 engineers and carries 112 combined years of mold making experience. Its three core offerings are mold design and fabrication (from prototype tooling to full production molds), 3D printing and rapid prototyping using a wide variety of materials, and plastic injection molding for small and medium sized parts with tight tolerances.

KUI CO serves manufacturers requiring custom injection molds, startup companies needing rapid-turn prototype tooling and initial production runs, and product development teams needing functional prototypes. The company emphasizes hands-on collaboration, working side-by-side with customers to optimize designs for maximum molded part quality and dimensional stability, and positions rapid turnaround on challenging jobs as a primary specialty.

The business model is direct B2B project-based sales with custom quoting for mold fabrication and injection molded parts; no public pricing, no recurring subscription or retainer structure, and no disclosed institutional investors or funding rounds are evident. The company is privately owned, operates from a single California facility, and distributes its services primarily through inbound phone and website contact channels.

Name

KUI CO

Legal name

KUI CO., Inc.

Website

https://kuicoinc.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

11–50 employees

Short description

KUI CO., Inc. is a privately held San Clemente, California plastic injection molding services provider founded in 1996, offering mold design and fabrication, 3D printing and rapid prototyping, and short-run injection molding for startups and manufacturers needing small to medium tight-tolerance parts.

Ownership category

akta.pro rank

Headquarters

HQ city

San Clemente

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Plastic Injection Molding Services: Production of small and medium sized plastic parts using injection molding machines ranging from 25 ton to 165 ton capacity. Specializes in parts with tight tolerances. Revenue generated through per-project or recurring manufacturing orders.
2. Mold Design and Fabrication: Design and build of high quality plastic injection molds from prototype tooling to full production molds. Custom quoting for mold fabrication projects.
3. 3D Printing and Rapid Prototyping: Production of high quality, functional prototypes with quick turn around times using a wide variety of materials.

Go-to-market motion1 record

Distribution channels1 record

Core offering

KUI CO provides plastic injection molding services specializing in small and medium sized parts with tight tolerances, using 25 molding machines ranging from 25 ton to 165 ton capacity. The company also designs and builds plastic injection molds from prototype tooling to full production molds, and produces functional 3D printed prototypes with quick turnaround times across a wide variety of materials. The firm works directly with customers to optimize designs for maximum molded part quality and dimensional stability.

Product overview

Kui Co. Inc. is a plastic injection molding services provider offering three integrated services: Mold Design and Fabrication (from prototype tooling to full production molds), 3D Printing and Rapid Prototyping (for quick-turn functional prototypes), and Plastic Injection Molding (using 25-165 ton machines for small to medium parts with tight tolerances). The company specializes in rapid turnarounds for challenging jobs, particularly prototype molds and startup companies, working closely with customers to optimize designs for maximum part quality.

Differentiator

Problem solved

Functional benefit

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators3 records

Recent moves4 records

Expansion highlights3 records

Broad incumbents

• Protolabs: Large digital manufacturing platform offering rapid prototyping and on-demand injection molding across multiple material and size ranges. Direct overlap with KUI CO's prototype-to-production value proposition, though Protolabs operates at vastly greater scale and through an automated quoting platform rather than side-by-side engineer-led engagements.
• Xometry: Online marketplace and custom parts manufacturer covering CNC, sheet metal, 3D printing, and injection molding. Competes with KUI CO for on-demand plastic prototype and short-run production orders, especially from startup and mid-market buyers who self-serve quotes online.

Direct peers

• EVCO Plastics: Established US contract injection molder offering custom molding and mold-building services across a broad range of part sizes and industries. Direct peer to KUI CO for B2B custom injection molding services, with comparable engineer-led design support and tight-tolerance specialization, but at significantly larger scale.
• Plethora (formerly Plethora / Coreology Mfg): Boutique rapid injection molding job shop focused on prototype and low-volume production runs for hardware startups in the Bay Area / Southern California. Closest comparable to KUI CO on customer segment (startups), part sizes, and rapid-turnaround specialization.
• RCO Engineering: Custom injection molder with integrated mold design and tooling capabilities serving medical, electronics, and consumer-products customers. Comparable business model to KUI CO of engineer-led, design-to-production molding services with tight-tolerance focus.
• Kurz Industrial: Mid-sized US custom injection molder with in-house mold design and fabrication, focused on precision parts for industrial and technical OEM customers. Direct peer with similar end-to-end tooling-to-production service offering.
• Mid-State Engineering & Molding: Custom injection molder and mold builder providing prototype-to-production services for industrial and consumer products. Directly comparable service mix to KUI CO, including mold build, prototyping, and tight-tolerance production runs.

Emerging players

• Stratasys Direct Manufacturing: Specialized 3D printing and rapid prototyping service bureau with deep additive manufacturing material capabilities. Comparable to KUI CO's 3D printing / prototyping service line, though it does not offer custom injection mold build or production molding.

Regional players

• Westec Plastics: California-based plastic injection molder providing custom molding services for medical, electronics, and industrial customers. Geographic and end-market overlap with KUI CO, with a similar mix of prototype and production work.

Others

• 3D Systems Quickparts: Industrial 3D printing and on-demand custom part production service from a broad incumbent in additive manufacturing. Overlaps with KUI CO's prototyping service and tooling exploration via 3D printed mold inserts, but its focus is service-bureau 3D printing rather than custom injection molding.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights5 records

Customer concentration

• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/kui-co-inc

Revenue estimate

Valuation estimate

Number of profiles

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 KUI CO