What Magna Machine does

Magna Machine Company is a Cincinnati, Ohio-based custom contract manufacturer founded in 1947, specializing in the production of large and complex components and fully functional mechanical assemblies. Operating from a 192,000 sq. ft. Forest Park facility equipped with 24 overhead cranes (up to 40 tons each, 160,000 lb total lifting capacity) and a purpose-built 'super bay' for very large multitasking machines, the company offers 4-axis and 5-axis CNC machining for work pieces up to 240" x 600" and weighing up to 160,000 lbs, supported by horizontal boring (Union PCR-160, 120-ton capacity), vertical turning (BOST VTL 60 CY), 5-axis gantry (Trimill VF 10035), MIG/TIG/sub-arc/microscopic welding, fabrication, in-house finishing (blast, paint, polish), assembly, run-off/test, and field installation, all under ISO 9001:2015 quality systems with a metrology lab anchored by a Faro Vantage Laser Tracker and Faro Platinum Arms.

The company serves enterprise customers in at least 11 industries — Aerospace, Defense, Plastics, Chemical Processing, Energy, Mining, Amusement, Automotive, Oil and Gas, Paper, Steel, and Machine Tools — with documented work including jet engine test cell components for GE Aviation, mission-critical parts for US defense primes (Columbia/Virginia-class submarines, Ford-class carriers, F-35, Arleigh Burke destroyers), a 130-inch 7-layer blown film die for a major plastics OEM, 16-deck vertical filter presses for mining, and tensile armoring machines for wire and cable applications. Its business model is purely project-based, quote-driven contract manufacturing (B2B sales-led, RFQ/file transfer portal and direct email sales), with no recurring or subscription revenue stream; pricing is custom and not publicly disclosed, though individual projects are multimillion-dollar in scale.

In February 2026, Magna Machine was acquired by private equity firm Ventus Industrial Partners (with GenNx360 Capital Partners and Admiralty Partners) and merged with sister company General Tool Company (GTC) to form Aeron Defense, a US defense-sector manufacturing platform with a combined ~550,000 sq. ft. footprint in northern Cincinnati; Magna Machine became GTC's fourth manufacturing site, the Kramer family retained a minority equity stake, and the company simultaneously launched the 'Ownership For All' program granting every eligible employee an ownership stake. The combined platform is positioned to pursue organic growth and additional roll-up acquisitions within the US defense industrial base.

Name

Magna Machine

Legal name

Magna Machine Company

Website

https://magna-machine.com

Company type

Private

Founded year

1947

Operating status

Acquired

Headcount range

51–100 employees

Short description

Magna Machine is a Cincinnati-based custom contract manufacturer founded in 1947, specializing in large-part CNC machining (up to 240" x 600", 160,000 lbs), fabrication, assembly, and finishing for aerospace, defense, plastics, energy, mining, and industrial OEM customers. In February 2026 it was acquired by Ventus Industrial Partners and merged with GTC to form Aeron Defense.

Ownership category

akta.pro rank

Headquarters

HQ city

Cincinnati

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Custom Contract Manufacturing Projects: Project-based, one-time revenue from custom large-part machining, fabrication, assembly and finishing jobs. Engagements are quote-based, scoped per project (e.g., GE 9X Boat Tail: 7 units, 6-month lead time; Cell A20 Plenum: 13–16 month multimillion-dollar contract; Rare Isotope Beams: 26-week delivery; 7-Layer Die: 10-month delivery). No subscription or recurring model indicated.
2. Defense Manufacturing (Post-Aeron Defense Formation): Following acquisition by Ventus Industrial Partners in February 2026 and formation of Aeron Defense, Magna Machine is positioned as a manufacturing partner on US defense programs including Columbia-class and Virginia-class submarines, Ford-class aircraft carriers, Arleigh Burke-class destroyers, and the F-35 fighter jet. Defense revenue is project-based and tied to major prime programs.

Pricing tiers

Go-to-market motion3 records

Distribution channels2 records

Marketing channels6 records

Core offering

Magna Machine is a custom contract manufacturer operating from a 192,000 sq. ft. facility in Forest Park (Cincinnati), Ohio, producing large parts and fully functional assemblies for aerospace, defense, plastics, chemical processing, energy, mining, automotive, amusement, and other industrial OEMs. Core capabilities include 4-axis and 5-axis CNC machining of workpieces up to 240" x 600" and 160,000 lbs, in-house fabrication (MIG/TIG/Sub-Arc welding), finishing (blast, paint, polish), assembly, run-off testing, and field installation under ISO 9001:2015.

Product overview

Magna Machine is a single, integrated contract manufacturing business (not a software platform) operating from a 192,000 sq ft facility in Forest Park / northern Cincinnati, Ohio, organized around one core capability — large-part manufacturing — that is delivered through the Machine Shop Services portfolio comprising four linked service modules: Fabrication, Machining, Finishing, and Special Projects/Rebuilds. These modules feed higher-level offerings including Functional Assemblies, a Quality Systems / metrology capability, and a Special Projects rebuild service, supporting industries such as Aerospace/Defense, Amusement, Automotive, Chemical Processing, Energy, Machine Tools, Mining, Oil and Gas, Paper, Plastics, and Steel. As of February 2026, Magna Machine was acquired alongside General Tool Company (GTC) into Aeron Defense by Ventus Industrial Partners (with GenNx360 Capital Partners and Admiralty Partners), with Magna becoming GTC's fourth manufacturing site, and the company also introduced the Ownership For All employee ownership program.

Differentiator

Problem solved

Functional benefit

Products and services

• Large Part Manufacturing Core custom large-component machining capability producing parts ranging from 10" x 10" workpieces up to 240" x 600" and 160,000 lbs, with 4-axis and 5-axis CNC machining, run-off testing, and field installation from a 192,000 sq. ft. Cincinnati facility. Serves aerospace, defense, plastics, chemical processing, energy, mining, and other industrial OEMs.
• Machine Shop Services Integrated contract manufacturing service platform combining four service modules (Fabrication, Machining, Finishing, and Special Projects/Rebuilds) under a single project-managed engagement, supporting industries including Aerospace/Defense, Amusement, Automotive, Chemical Processing, Energy, Machine Tools, Mining, Oil and Gas, Paper, Plastics, and Steel.
• Fabrication Welding and metal forming service module performing MIG, TIG, sub-arc, and microscopic welding in a clean-room environment, handling fabrications up to 160,000 lbs in a variety of materials, with certified welders, Vibratory Stress Reliever, and Hydrotesting Unit for pressure vessels.
• Machining 4-axis and 5-axis CNC machining service module offering high-speed, high-performance multi-process machines, horizontal boring mills, universal mills, gantry mills, vertical and horizontal lathes, and grinders, supporting workpieces from small components up to 240" x 600" and 160,000 lbs.
• Finishing Value-added finishing service offering in-house blasting, painting, and polishing (including food-grade and chemical-processing finishes) to complement engineering, machining, fabrication, welding, and assembly work, delivering finished pieces ready for assembly or shipment.
• Special Projects / Rebuilds Bespoke project service covering one-off special machinery builds and full machine rebuilds, ranging from routine reconditioning jobs to complex single-part fully functional assemblies, providing full lifecycle project accountability under one roof.
• Functional Assemblies Turnkey assembly offering covering special machinery, jig building, optical alignment, machine tool components, and packaging, delivered from a 45,000 sq. ft. assembly bay with field installation and run-off testing to produce fully functional, customer-ready assemblies.

Quantifiable outcome

• Manufactured what is understood to be the largest 7-layer blown film die in the world (130" diameter, 70,000 lbs assembled, ±.0005" tolerance)
• +5 more outcomes

Named customers9 records

Segments12 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Two partnerships are on record, tiered flagship and core.

• General Tool Company (GTC)flagshipStrategic or Co-development Partner · 4 February 2026GTC and Magna were originally founded together by the Kramer family and are reuniting under the GTC name. Magna becomes GTC's fourth manufacturing site, with the combined business operating ~550,000 sq. ft. of manufacturing facilities within a 10-mile radius in northern Cincinnati. GTC (founded 1947, Reading, Ohio) manufactures mission-critical defense components for major US defense primes including Columbia-class and Virginia-class submarines, Ford-class aircraft carriers, Arleigh Burke-class destroyers, the F-35 fighter jet, and missile defense systems. Magna brings large-part machining and turnkey large functional assembly expertise.
• United Precision Services (UPS)coreStrategic or Co-development PartnerSister company of Magna Machine. UPS provides sales, support, parts and service for heavy-duty and precision machine tools from manufacturers such as Bost, Huron, MTE, Matec, Romi, HEXRAM, Mausa, and Microstep. Magna Machine operates as a 'working showroom' for UPS.

Scale indicators8 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• General Tool Company (GTC): Founded 1947, Reading, Ohio; sister company of Magna Machine and now combined with it under the Aeron Defense platform. GTC manufactures mission-critical defense components for the same US defense primes (Columbia/Virginia-class submarines, Ford-class carriers, F-35, Arleigh Burke). Direct comparable on capability, customer base, and ownership lineage.
• Ellwood Group: Family-owned, large-tonnage specialty steelmaker and heavy industrial parts manufacturer with capabilities in large forged/machined components for defense, aerospace, energy, and industrial markets. Comparable on heavy-lift capacity, large work envelopes, and project-based defense and energy programs.
• Scot Forge: Spring Grove, Illinois-based custom open-die forging and large machined component manufacturer serving aerospace, defense, power generation, and oil and gas. Comparable on heavy industrial machining of large components with tight tolerances and project-driven revenue model.
• Metaltek International: Large-engineered metal components manufacturer combining foundry and CNC machining capabilities, including very large parts for aerospace, defense, energy, and industrial markets. Comparable on integrated metal manufacturing and large-part scale.
• Weber Metals (a Howmet company): Large aluminum and titanium forging facility (Paramount, CA) producing large structural aerospace and defense components. Comparable on very-large-part aerospace/defense machining and forging-machining integration.
• Stellex Engineering: UK-based precision engineering group focused on large complex machined components for aerospace, defense, and energy. Comparable on large-part CNC machining and assembly for defense primes, with a regional-UK base and similar program mix.

Broad incumbents

• Howmet Aerospace: Large public aerospace and defense supplier with engine products, fasteners, and large structural castings/machining. Serves the same defense primes and aerospace OEMs as Magna; provides a public-market scale benchmark but is far larger and broader in scope than Magna.
• Precision Castparts Corp. Berkshire Hathaway-owned large aerospace and industrial castings/forgings manufacturer. Serves the same aerospace and defense primes on large complex components; provides a broad incumbent benchmark for very-large-part manufacturing scale.

Emerging players

• Proto Labs: Digital custom manufacturing services provider (CNC machining, injection molding, 3D printing) with a different scale and delivery model (rapid prototyping to low-volume production). Comparable on the contract manufacturing service offering but operates at much smaller part sizes with a software-led GTM.

Others

• Bodycote: Global supplier of heat treatment, hot isostatic pressing, and specialist thermal processing services to aerospace, defense, energy, and industrial markets. Adjacent rather than directly competing; relevant as an ecosystem participant supporting the same large-part manufacturing supply chain.

Market position

Strengths5 records

Weaknesses2 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Magna Machine