What Quality Control Corp does

Quality Control Corp (QCC), founded in 1951 and headquartered in Harwood Heights, Illinois, is a contract manufacturing services provider specializing in precision CNC machining, assembly, and testing of complex hydraulic, pneumatic, and electro-mechanical components. The company operates five manufacturing facilities totaling 120,000 to 130,000 square feet of production space, equipped with roughly 100 major CNC assets and 200 pieces of ancillary equipment, plus 45+ test stands including 32 functional hydraulic test stands capable of testing at speeds up to 8,000 rpm, pressures up to 6,000 psi, and flows to 120 gpm. Capabilities span turning, milling, grinding, diamond bore-sizing, broaching, honing, lapping, and wire EDM, governed by AS9100-D certified quality management systems covering advanced quality planning, FMEA, SPC, and full PPAP requirements. A second assembled-products facility operates in Schiller Park near Chicago O'Hare.

QCC generates revenue through four streams: private label contract manufacturing agreements, licensed manufacturing agreements, legacy product buyouts, and direct parts sales through the QCC.Parts e-commerce storefront. Its core commercial pitch to OEMs and Tier 1 manufacturers is to absorb non-core, low-volume, or end-of-life product lines—buying IP, inventory, and fixed assets or licensing manufacturing rights—so the OEM can redirect resources to its strategic core while customers and brand continuity are preserved. Through this buyout channel QCC has absorbed multiple lines from Parker (Oildyne miniature piston pumps, 2022), Woodward (DYNA 70025 actuator and DYNA Controllers in 2024, then EPG/DPG governors and the EFC electronic fuel control in late 2024, with commercial launch in April 2025), and Eaton/Danfoss (Char-Lynn power steering control units, November 2025), and now markets a multi-brand product portfolio including Dukes directional control valves, Hydraguide steering valves, Webster pumps and motors, Synchro-Start speed switches, and the acquired Woodward, Parker, and Eaton/Danfoss lines. Go-to-market is enterprise field sales led by VP of Sales and Marketing Dave Price, supported by regional account managers and direct customer engagement, with lead generation through major industry trade shows including CONEXPO-CON/AGG, POWERGEN, and iVT Expo. Pricing is quote-based under multi-year contracts.

QCC serves enterprise OEMs and Tier 1 manufacturers across fluid power, engine systems, off-highway, aerospace, defense, power generation, and adjacent verticals. Marquee relationships include Bosch Rexroth Hägglunds (Rineer product line revitalization, with quantified outcomes of 92% backlog recovery, 75% reduction in lead times, and 90% on-time delivery), John Deere, Caterpillar, Danfoss, Komatsu, Altec, Parker, and Cummins. The company also manufactures RCV valves for Enfield Technologies ventilator programs during COVID-19, producing 100 units per day within 30 days of program inception. QCC is privately held by Chicago-based private equity firm Capital Concepts Holdings LLC, which acquired the company from Promus Equity in March 2021.

Name

Quality Control Corp

Legal name

QCC LLC

Website

https://qccorp.com

Company type

Private

Founded year

1951

Operating status

Operating

Headcount range

101–250 employees

Short description

Quality Control Corp (QCC), founded 1951 and PE-owned since 2021, provides precision CNC machining, assembly, and testing of hydraulic, pneumatic, and electro-mechanical components to OEMs and Tier 1 manufacturers, with a growing portfolio of acquired legacy product lines sold via QCC.Parts.

Ownership category

akta.pro rank

Headquarters

HQ city

Harwood Heights

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Private Label Contract Manufacturing: QCC manufactures non-core product lines for OEMs under private label agreements, maintaining brand continuity while offloading operational burden. Customers maintain design control while QCC handles production, assembly, testing, and customer service.
2. Licensed Manufacturing Agreements: QCC licenses manufacturing rights for legacy product lines from OEMs, ensuring continued product availability with managed customer service. Alternative to last-time buys or end-of-life decisions.
3. Legacy Product Buyouts: QCC acquires non-core product lines including intellectual property, inventory, and fixed assets. Generates revenue through ongoing production and sale of acquired product lines.
4. Parts Sales (QCC.Parts Store): Direct e-commerce sales of manufactured components including pumps, motors, valves, actuators, and controllers through the company's online parts store.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

QCC provides contract manufacturing services for OEMs and Tier 1 manufacturers, specializing in precision CNC machining, assembly, and functional testing of hydraulic, pneumatic, and electro-mechanical components. The company offers three primary service models—Private Label Contract Manufacturing, Licensed Manufacturing Agreements, and Legacy Product Buyouts—and also sells a portfolio of acquired product brands (Dukes, Dyna, Char-Lynn, EPG/DPG, Hydraguide, Webster, Oildyne, Synchro-Start) through its QCC.Parts e-commerce store.

Product overview

QCC LLC is a manufacturing services provider specializing in precision machining, assembly, and testing of complex hydraulic, pneumatic, and electro-mechanical components. The company operates a multi-brand portfolio of acquired product lines including Dukes Directional Control Valves, Dyna Actuators & Controllers (from Woodward), Char-Lynn Steering Units (from Eaton/Danfoss), EPG & DPG Controllers & Actuators (from Woodward), Hydraguide Steering Valves, Webster Pumps and Motors, Oildyne Miniature Piston Pumps (from Parker), and Synchro Start products. These products are sold through the QCC Parts Store e-commerce platform (qcc.parts). Beyond product sales, QCC offers manufacturing services including Private Label Contract Manufacturing Agreements, Licensed Manufacturing Agreements, Legacy Product Buyouts, and Localized Manufacturing Service Agreements. The company also provides in-house capabilities in assembly and testing, AS9100D quality systems, manufacturing engineering, supply chain management, and project management. Markets served include fluid power, engine systems, aerospace, defense, agriculture, construction, mining, and energy sectors.

Differentiator

Problem solved

Functional benefit

Brands

• Dukes: Dukes Directional Control Valves - fluid power components
• Dyna
• Hydraguide
• Webster
• Oildyne

Products and services

• Private Label Contract Manufacturing Contract manufacturing service allowing OEMs to maintain non-core or legacy product lines under their own brand while QCC handles production, assembly, testing, and customer service.
• Licensed Manufacturing Agreements Service for OEMs to license manufacturing rights for legacy product lines to QCC, ensuring continued product availability and managed customer service as an alternative to last-time buys or end-of-life decisions.
• Legacy Product Buyouts Acquisition service for non-core product lines, allowing OEMs to unlock value from underperforming or strategic-fit products and use proceeds to drive growth of core product lines.
• Localized Manufacturing Service Agreements Service for localizing manufacturing operations to reduce costs and improve supply chain responsiveness for OEM customers.
• Dukes Directional Control Valves Hydraulic directional control valves for fluid power applications, providing precise flow control in hydraulic systems; sold under the Dukes brand via QCC.Parts.
• DYNA 70025 Actuator and DYNA Controllers Product Line Multi-turn actuators for fuel injector pumps (DYNA 70025) and electronic speed controllers and governors for engine speed control; product line acquired from Woodward.
• EPG & DPG Controllers and Actuators EPG (Electric Powered Governor) controllers and actuators for controlling speed of diesel, gas, gasoline engines and gas turbines; DPG (Digital Programmable Governor) microprocessor-based controllers for generator sets; product line acquired from Woodward. RoHS compliant and UL Listed.
• Char-Lynn Power Steering Control Units & Actuators Power steering control units (Series 3, 6, 12, 110, 230, 450) providing fluid-linked power steering with integrated directional control servo valve and feedback meter; manufactured to original Eaton/Danfoss specifications.
• Hydraguide Steering Valves Hydraulic steering valves for power steering applications in off-highway vehicles, sold under the Hydraguide brand via QCC.Parts.
• Webster Pumps and Motors Hydraulic pumps and motors under the Webster brand for fluid power applications in mobile equipment, sold via QCC.Parts.
• Oildyne Miniature Piston Pumps Miniature 5-piston pumps and cartridge 3-piston pumps for hydraulic systems; pressures up to 276 bar (4,000 psi) with pumping efficiencies up to 90%; formerly Parker Oildyne line.
• S15 & M25 Pumps and Motors Hydraulic pumps and motors for fluid power applications in mobile equipment, sold via QCC.Parts.
• MB Brake Valves Brake valves for hydraulic braking systems in mobile equipment, sold via QCC.Parts.
• MP Valves (MP-15, MP-18) Hydraulic valves for fluid power control applications, sold under the MP-15 and MP-18 designations via QCC.Parts.
• Synchro-Start Speed Switches & Mini-Gens Speed switches and miniature generators for engine monitoring and control applications, sold under the Synchro-Start brand via QCC.Parts.
• Hand Pumps & Pressure Switches Manual hydraulic hand pumps and pressure switches for fluid power systems, sold via QCC.Parts.
• DSS-2 Two-Channel Digital Speed Switch Electronic device protecting engines from underspeed and overspeed conditions by shutting down motors or engines to prevent damage; formerly Woodward/Barber-Colman.
• QCC.Parts E-commerce Storefront Online parts store for direct purchasing of manufactured and acquired components including pumps, motors, valves, actuators, and controllers across Dukes, Dyna, Char-Lynn, EPG/DPG, Hydraguide, Webster, Oildyne, and other QCC product lines.

Quantifiable outcome

• 92% improvement in on-time delivery (from 50% to 90%)
• +4 more outcomes

Named customers9 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core and notable.

• Bosch Rexroth (Hägglunds)coreStrategic or Co-development PartnerPartnership to revitalize the Rineer hydraulic motor product line. QCC helped achieve 92% backlog recovery, 75% lead time reduction, and 50% supplier throughput improvement. Karl Lindblom, SVP Hägglunds Large Hydraulic Drives Business Unit, provided testimonial on transformative results.
• Enfield TechnologiesnotableStrategic or Co-development PartnerCollaborative manufacturing partnership during COVID-19 pandemic. QCC manufactured RCV valves for ventilators for Canadian government. QCC produced 100 units per day within 30 days, using Enfield's test rigs and components.
• 400+ Global SupplierscoreOthersQCC maintains relationships with over 400 critical suppliers worldwide. Supplier selection and retention controlled through pre-qualification process, ongoing performance monitoring, closed-loop corrective action plans, and engagement in QCC quality systems.

Scale indicators8 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• Velan Inc. Manufacturer of industrial valves for power generation, oil & gas, and chemical markets. Comparable as an established industrial valve manufacturer with multi-decade installed bases and aftermarket exposure.
• CIRCOR International: Diversified manufacturer of flow control and fluid power products for industrial, aerospace, and defense markets. Comparable as a broader fluid power/flow control player with overlapping component portfolios.
• Moog Inc. Global designer and manufacturer of high-performance precision motion control products, including fluid power valves and pumps. Comparable in precision fluid power component manufacturing for aerospace, defense, and industrial markets.

Direct peers

• Mayville Engineering Company (MEC): US-based contract manufacturer serving heavy equipment, powersports, industrial, and aerospace markets with machining, fabrication, assembly, and testing. Comparable in customer mix, end-market exposure, and value-added manufacturing services.
• Hydro Inc. Independent fluid power aftermarket and reverse-engineering services provider for pumps, valves, and hydraulic components. Directly comparable on fluid power service model, legacy product support, and industrial customer base.
• The Oilgear Company: Manufacturer of hydraulic pumps, valves, motors, and fluid power systems for industrial, mobile, and aerospace applications. Comparable in fluid power component manufacturing and precision machining expertise.
• Phillips Medisize (Molex): Global contract manufacturer providing design, precision machining, assembly, and quality services to medtech and industrial OEMs. Comparable as a multi-vertical contract manufacturer with full lifecycle services.
• Avalign Technologies: Private equity-owned precision contract manufacturer serving medical, aerospace, and industrial markets with machining, assembly, and regulatory-quality systems. Comparable as a PE-backed precision manufacturing platform with multi-vertical exposure.
• Donatelle: US precision contract manufacturer for medical devices and industrial components, offering machining, molding, assembly, and testing. Comparable as a US-based contract manufacturer with similar full-service capabilities.

Emerging players

• Tristone Flow Solutions: Mid-market fluid power and flow control component manufacturer focused on industrial vehicle and off-highway applications. Comparable as a focused fluid power player in adjacent mobile and industrial segments.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors1 record

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 Quality Control Corp