WSI Industries

What WSI Industries does

WSI Industries, Inc. is a B2B contract manufacturer founded in 1950 and headquartered in Monticello, Minnesota, specializing in complex CNC precision machining and complex assembly for high-tolerance parts. The company operates a single climate-controlled production facility housing more than 50 pieces of CNC machining equipment — including high-speed Flexible Manufacturing Systems (FMS), dedicated and specialized machining cells, and stand-alone equipment — capable of handling part sizes up to 60-inch cube for milling and 53-inch diameter for turning. Its technology stack includes proprietary finishing processes (jitterbug finishing, chem cleaning, electron-beam welding, Stellite inlay), line boring for heavy equipment, and specialized capabilities for thin-wall and deep-cavity work in medical and semiconductor applications. Quality systems are built around ISO 9001:2015 and AS9100D certifications, with FMEA, PPAP, and APQP processes and full CMM inspection capability.

The company serves nine vertical markets: engine components/powersports, energy, aerospace, defense, semiconductor, medical, heavy equipment, industrial, and bioscience. Its GTM model is direct enterprise sales via a quote-based process with a 24-hour response commitment, supported by a dedicated business development and marketing function. Revenue is generated primarily through time-and-materials or per-part pricing under long-term supply agreements, delivered as single-source turnkey manufacturing — from engineering support and supply chain management through machining, assembly, and finished delivery. Named enterprise customers include Polaris Industries (78% of FY2018 sales), General Dynamics Armament and Technical Products, and National Oilwell Varco. The company was publicly traded on NASDAQ (WSCI) until September 2018, when Polaris Industries announced a merger to acquire all outstanding stock at $7.00 per share in cash (~$23.9M enterprise value), taking WSI private and integrating it into Polaris's Global Operations organization.

Name

WSI Industries

Legal name

WSI Industries, Inc.

Website

https://wsiindustries.com

Company type

Public

Founded year

1950

Operating status

Acquired

Headcount range

51–100 employees

Short description

WSI Industries is a B2B contract manufacturer providing CNC precision machining and complex assembly for high-tolerance parts across powersports, energy, aerospace, defense, semiconductor, medical, heavy equipment, industrial, and bioscience OEMs from its Monticello, Minnesota facility.

Ownership category

akta.pro rank

Product category

Precision CNC Machining and Contract Manufacturing

NAICS

Machine Shops (332710)

SIC

Metalworkg Machinery & Equipment (3540)

akta.pro primary industry

CNC Machine Tools (Turning, Milling, Machining Centers) (IMAHADAA)

akta.pro secondary industry

Metal Airframe Structures & Machined Parts (IMABAEAC)

Keywords

• Precision CNC machining
• Contract manufacturing services
• Complex assembly services
• Aerospace defense machining
• Turnkey manufacturing solutions

Headquarters

HQ city

Monticello

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Precision Machining Services: Contract manufacturing revenue generated from precision CNC machining of complex, high-precision parts for various industries including aerospace, defense, energy, automotive, powersports, medical, and industrial applications. Revenue is earned through time-and-materials or per-part pricing structures under long-term supply agreements.
2. Complex Assembly Services: Revenue from complex assembly operations including demand-driven manufacturing, lean cellular manufacturing, and cross-functional team assembly services. Assembly services are provided as part of turnkey manufacturing solutions.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

WSI Industries provides precision CNC machining and complex assembly services for high-tolerance metal components delivered as single-source, turnkey contract manufacturing. The company operates over 50 pieces of CNC equipment with capacity for parts up to 60-inch cube (milling) and 53-inch diameter (turning), supporting nine industry verticals including aerospace, defense, energy, powersports, medical, semiconductor, heavy equipment, industrial, and bioscience. Services span prototype through production, including engineering support, program management, supplier sourcing, and finished-part delivery.

Product overview

WSI Industries provides precision machining and contract manufacturing services through an integrated single-source model. The core offerings include Precision Machining (CNC machining of complex, high-tolerance parts), Complex Assembly (demand-driven manufacturing with lean cellular operations), Program Management (coordinating machining, assembly, and supply chain), and Quality Systems (supporting FMEA, PPAP, APQP with CMM inspection). These services are delivered together as a turnkey solution serving aerospace, defense, energy, medical, semiconductor, powersports, and industrial markets, with the company providing engineering support, supplier management, and finished component delivery.

Differentiator

Problem solved

Functional benefit

Products and services

• Precision Machining CNC precision machining services for complex, high-tolerance parts using engineering-driven processes to identify design and material efficiencies. Includes high-speed FMS cells, dedicated machining cells, specialized cells, and stand-alone equipment for parts up to 60-inch cube (milling) and 53-inch diameter (turning).
• Complex Assembly Demand-driven assembly services that synchronize customer orders with production scheduling and fabrication, featuring lean cellular manufacturing for seamless part flow and cross-functional team assembly for turnkey delivery.
• Program Management Technical program managers provide single-point-of-contact coordination of precision machining, assembly operations, supplier sourcing, and inventory optimization for customer programs.
• Quality Systems Quality assurance supporting FMEA, PPAP, and APQP processes with continuous in-process verification and complete CMM inspection capability from process through final inspection.
• Contract Manufacturing Services Single-source contract manufacturing combining precision machining, complex assembly, engineering support, supply chain management, and strategic supplier partnerships for industries including aerospace, defense, energy, medical, semiconductor, powersports, and industrial markets.

Quantifiable outcome

• 100% acceptance rate maintained for General Dynamics parts since material change
• +5 more outcomes

Named customers5 records

Segments9 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Scale indicators11 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• NN Inc. NN is a precision-engineered components manufacturer serving aerospace, defense, medical, and industrial markets with metal and plastic machined parts. It is a broad incumbent peer to WSI because both produce tight-tolerance precision components for overlapping end-markets, although NN's portfolio is broader and includes bearings and engineered solutions at greater scale.
• Integer Holdings: Integer Holdings is one of the largest medical-device contract manufacturers, offering precision components, finished devices, and supply-chain services across cardiovascular, neuromodulation, and surgical markets. It is a broad incumbent peer to WSI because both compete for medical-device contract-manufacturing programs, although Integer operates at substantially larger scale and broader scope.
• MW Industries: MW Industries is a precision-engineered components manufacturer producing springs, fasteners, and machined components for aerospace, defense, medical, and industrial customers. It is a broad incumbent peer to WSI because both supply precision-machined components into overlapping aerospace, defense, medical, and industrial verticals, although MW Industries' catalog is broader and self-contained.

Direct peers

• Phillips Medisize: Phillips Medisize is a contract developer and manufacturer of medical devices and drug delivery systems, combining precision metal and plastic components with finished device assembly. It is a direct peer to WSI because both occupy the medical-device contract-manufacturing space, providing complex machined components and integrated assemblies to diagnostic and therapeutic OEMs.
• Tegra Medical: Tegra Medical is a contract manufacturer of precision-machined components and finished medical devices, including surgical instruments and implants. It is a direct peer to WSI because both serve the medical equipment and bioscience verticals with thin-wall/deep-cavity machining, complex assembly, and tight-tolerance finishing.
• Protolabs: Protolabs is a digital contract manufacturer offering on-demand CNC machining, injection molding, and sheet metal fabrication to industrial customers across multiple end-markets. It is a direct peer to WSI because both provide CNC precision machining services on a quote-based B2B model to similar aerospace, defense, medical, and industrial customers, although Protolabs operates at substantially larger scale.
• Orchid Orthopedic Solutions: Orchid is a contract manufacturer specializing in precision-machined orthopedic implants and instruments for medical-device OEMs. It is a direct peer to WSI because both serve the medical and bioscience verticals with high-precision machining of complex parts produced to demanding tolerances and surface-finish requirements.
• Cadence Inc. Cadence is a contract manufacturer of complex precision-machined components and sub-assemblies for medical device and industrial OEMs. It is a direct peer to WSI because both deliver tight-tolerance machined parts and finished assemblies to medical and industrial customers under turnkey program-management models.
• Sparton Corporation: Sparton is a contract manufacturer specializing in engineered products for defense, aerospace, and medical markets, with capabilities spanning precision machining, assembly, and electromechanical integration. It is a direct peer to WSI because both serve AS9100D-certified defense and aerospace programs with complex machined and assembled components, including sensing and detection platforms.
• Mack Molding: Mack Molding is a custom contract manufacturer providing injection molding, metal fabrication, and assembly services to industrial, medical, and energy customers. It is a direct peer to WSI because both operate turnkey contract-manufacturing businesses combining precision machining, complex assembly, and program management for diversified industrial end-markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/wsi-industries

Compliance2 records

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 WSI Industries