Supreme Gear Company

What Supreme Gear Company does

Supreme Gear Company is a privately held precision gear manufacturer headquartered in Fraser, Michigan, producing highly critical aircraft engine gears, complete gear boxes, gear shafts, drives, sprockets, housing assemblies, couplings, and splines. Founded in 1955 and operating for over 70 years, the company functions as a build-to-print contract manufacturer serving commercial aerospace, defense, automotive, medical, marine, and commercial & industrial end-markets, with aerospace and defense explicitly identified as primary segments. Named customers include Boeing, Airbus, and U.S. Department of Defense programs such as the B-2 Bomber, F-22 Raptor, B-1 Lancer, and F-35 Lightning II.

The company's technical platform is anchored by precision CNC machining equipment, including a Kapp ZE 800 profile gear grinder with in-process measurement capable of producing gears up to AGMA Q15 class, a Gleason Phoenix CNC spiral bevel gear grinder, an M&M Sigma 3 CNC Gear Measurement Center, a Zeiss CMM DB900, and 4-axis CNC milling capacity up to 64" x 32" x 30". Gears are produced up to 16 inches in diameter, with broader machining capacity up to 32 inches. In-house capabilities span engineering design (using AUTOCAD, SOLIDWORKS, MASTERCAM, and specialized gear software including QUICKGEAR and GEAR OFFICE), CNC gear grinding/hobbing/shaping, bevel gear generation, ID/OD grinding, CNC turning, milling, assembly, and non-destructive testing. Quality credentials include AS9100D aerospace certification, ISO 9001:2015, and NADCAP accreditation for both Non-Destructive Testing and Chemical Processing.

The company operates a sales-led B2B go-to-market with direct enterprise engagement and quote-based pricing. Revenue is generated through one-time custom manufacturing orders rather than published pricing or licensing. Distribution is direct-to-customer with no retail or intermediary channels. With 51-100 employees and a privately owned structure with no disclosed institutional investment, the company markets itself as serving a global footprint including North America and Europe, though specific international facility or revenue split data is not disclosed.

Name

Supreme Gear Company

Legal name

Supreme Gear Company

Website

https://supremegear.com

Company type

Private

Founded year

1955

Operating status

Operating

Headcount range

51–100 employees

Short description

Supreme Gear Company is a privately held precision gear manufacturer in Fraser, Michigan, producing critical aircraft engine gears, gear boxes, and related components for aerospace, defense, and industrial customers including Boeing, Airbus, and U.S. Department of Defense programs.

Ownership category

akta.pro rank

Product category

Precision Gear Manufacturing

NAICS

Aerospace Product and Parts Manufacturing (33641), Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612)

SIC

Aircraft & Parts (3720)

akta.pro primary industry

Metal Airframe Structures & Machined Parts (IMABAEAC)

Keywords

• Precision gear manufacturing
• Aerospace machining services
• Defense component manufacturing
• CNC gear grinding
• Custom drivetrain components

Headquarters

HQ city

Fraser

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Precision Component Manufacturing: Supreme Gear Company generates revenue through the custom manufacturing of precision aerospace gears, gear boxes, gear shafts, and related components to customer specifications. The company operates as a build-to-print manufacturer producing highly critical aircraft engine and missile gears for major aircraft builders. Revenue is derived from one-time product sales based on purchase orders and production runs, with no public pricing and quote-based engagement.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Supreme Gear Company manufactures custom precision gears (bevel, spur, worm, and helical), gear boxes and assemblies, splines, shafts, sprockets, housings, and couplings for aerospace, defense, automotive, medical, marine, and commercial/industrial OEMs. The company operates full in-house capabilities including engineering, CNC grinding, milling, turning, assembly, and NADCAP-certified inspection and non-destructive testing.

Product overview

Supreme Gear Company is a specialized precision machining manufacturer that produces highly critical aircraft engine gears, complete gear boxes, gear shafts, drives, sprockets, housing assemblies, and other precision-machined gear components up to 16 inches in diameter. The company offers a vertically integrated portfolio with in-house capabilities spanning gear manufacturing (CNC grinding, hobbing, shaping), assembly, inspection, grinding, milling, turning, and engineering design services. Their product portfolio centers on precision gears (bevels, spur, worm, splines), gear boxes and assemblies, and complementary components (sprockets, housings, couplings), supported by comprehensive manufacturing and quality control services—all produced under one roof to reduce time and cost.

Differentiator

Problem solved

Functional benefit

Products and services

• Gears (Bevel, Spur, Worm, and Helical)

Quantifiable outcome

• Up to AGMA Q15 class gear precision (highest precision classification)
• +2 more outcomes

Named customers3 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators3 records

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• Regal Rexnord: Global manufacturer of power transmission and motion control products, including precision gears, gear drives, and related components for aerospace, defense, and industrial markets. Broad incumbent with overlapping aerospace gear and motion offerings.
• Philadelphia Gear (a Timken brand): Established manufacturer of precision gears, gearboxes, and power transmission solutions serving aerospace, defense, marine, and industrial markets. Larger incumbent overlapping in precision gear and gearbox manufacturing for defense and aerospace.

Direct peers

• Winzeler Gear: Custom gear manufacturer producing spur, helical, bevel, worm, and spline gears for aerospace, defense, and industrial applications. Direct peer based on shared custom precision gear focus and aerospace customer base.
• Gear Motions: Precision gear manufacturer producing custom gears, gear assemblies, and precision components for aerospace, defense, medical, and industrial applications. Direct peer in capability set and end markets.
• Forest City Gear: Precision gear manufacturer serving aerospace, defense, medical, and industrial markets with custom spur, helical, bevel, and worm gears. Comparable precision tier and aerospace customer overlap.
• Schafer Gear Works: Manufacturer of precision gears, gear assemblies, and related components for aerospace, defense, automotive, and industrial markets. Comparable in precision machining, vertical integration, and aerospace/defense customer mix.
• Cleveland Gear Company: Manufacturer of custom precision gears, gearboxes, and related components for industrial and aerospace applications. Comparable in custom precision gear focus and long-standing heritage.
• Arrow Gear Company: Precision spiral bevel, spur, and helical gear manufacturer serving aerospace, defense, and industrial markets. Closely comparable given its similar focus on high-precision aerospace gears and NADCAP-grade manufacturing.
• Bison Gear & Engineering: Designer and manufacturer of precision gear motors, gear reducers, and custom gear products for industrial, medical, and aerospace-adjacent applications. Peer in custom precision gear manufacturing, though more focused on fractional horsepower products.

Others

• Hardinge (machine tools): Manufacturer of precision CNC machine tools, turning machines, and grinding equipment used in gear and component manufacturing. Adjacent enabling supplier providing capital equipment of the type Supreme Gear uses for its precision production.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/supremegearco
• LinkedInlinkedin.com/company/supreme-gear-co.

Compliance4 records

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 Supreme Gear Company