What Monroe Engineering does

Monroe Engineering, operating as OneMonroe, is a privately held U.S. industrial manufacturer and distributor founded in 1958 and headquartered in Rochester Hills, Michigan. The company produces and sources a catalog of more than 50 product lines encompassing mechanical hardware (hinges, casters, fasteners, seals, gas springs, knobs, handwheels, magnets, leveling pads, bearings, drawer slides, toggle clamps, hoist rings, and quick-release pins) alongside engineered offerings such as custom cable assemblies, wiring harnesses, molded cables, fiber optic cables, copper cables, military-spec and aerospace-spec wiring, and custom box builds. Manufacturing operations are ISO 9001:2015 and AS9100D certified, with cable and wiring work meeting IPC/WHMA-A-620 Class 3 and MIL-STD-454 specifications, qualifying the company for aerospace, defense, and military supply chains.

The business operates four revenue streams: (1) catalog and e-commerce product sales across thousands of SKUs via a sales-led channel with 24/7 live sales engineers; (2) custom manufacturing and fabrication services from prototype through volume production; (3) subscription-style Vendor Managed Inventory (VMI) programs, including smart vending machines placed at customer facilities that automate reordering and consumption tracking; and (4) global sourcing services leveraging Asian manufacturing partnerships with quality auditing. Pricing is quote-based with no public list pricing.

The customer base spans more than 20 verticals including aerospace, defense, military, medical, automotive, construction, agriculture, rail, electric vehicle, energy/utilities, and industrial manufacturing, served through direct sales, an e-commerce storefront at catalog.monroeengineering.com, VMI vending placements, and managed inventory programs. Growth has been driven by a roll-up strategy anchored on four acquisitions over the past decade: Northwest Fastener Sales (2014), Spangle Fasteners (2018), FASCO LV (2023), and Electronic Fasteners (rebranded Monroe EFI, 2023), supported by private equity backing from ShoreView Industries and NorthStar Capital since 2017. Current leadership is Garrett Morelock as President and CEO.

Name

Monroe Engineering

Legal name

Monroe Engineering

Website

https://monroeengineering.com

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

251–500 employees

Short description

Monroe Engineering (d/b/a OneMonroe) is a privately held U.S. industrial manufacturer and distributor, founded 1958, serving manufacturers, distributors, and catalog houses with 50+ product lines, custom manufacturing, VMI programs, and aerospace/military-spec cable assemblies.

Ownership category

akta.pro rank

Product category

Industrial Hardware Components

NAICS

Other General Purpose Machinery Manufacturing (3339), Bolt, Nut, Screw, Rivet, and Washer Manufacturing (332722), All Other Industrial Machinery Manufacturing (333248)

SIC

Wholesale-Industrial Machinery & Equipment (5084), Bolts, Nuts, Screws, Rivets & Washers (3452), Cutlery, Handtools & General Hardware (3420)

akta.pro primary industry

Material Handling Equipment MRO (Forklifts, Reach Trucks, Pallet Jacks) (TLAKAHAC)

akta.pro secondary industries

Buttons & Buckles Manufacturing (Buttons/Toggles/Buckles/Slides) (IMAOALAB), Capping, Sealing & Closing Machines (IMAHAOAG)

Keywords

• Industrial hardware components
• Custom manufacturing services
• Vendor managed inventory
• Industrial fastener distribution
• Cable assembly solutions

Headquarters

HQ city

Rochester Hills

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Industrial Hardware Product Sales: Sale of standard and specialty industrial components including hinges, casters, fasteners, seals, gas springs, magnets, knobs, handwheels, and over 50 product categories. Revenue generated through catalog sales, e-commerce platform, and direct customer orders with quote-based pricing.
2. Custom Manufacturing Services: Custom fabrication and manufacturing of built-to-order parts, assemblies, and specialized components. Includes precision machining, finishing, packaging, cable assemblies, and box builds. Revenue generated through project-based quotes and volume production contracts.
3. VMI Program Services: Vendor Managed Inventory programs including vending machine solutions. Monitors and replenishes customer inventory, generating recurring revenue through inventory management fees and product sales tied to consumption.
4. Global Sourcing Services: Strategic sourcing and global manufacturing services with partnerships in Asia. Offers material procurement, logistics, customs clearance, and just-in-time delivery solutions.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels7 records

Core offering

Monroe Engineering (operating as OneMonroe) manufactures and distributes a broad line of industrial hardware components—including hinges, casters, fasteners, seals, knobs, handwheels, magnets, gas springs, and bearings—across more than 50 product categories. The company also delivers custom manufacturing (built-to-order parts, precision machining, finishing, packaging), custom cable and wiring assemblies, and Vendor Managed Inventory (VMI) programs including smart vending machine solutions placed at customer facilities.

Product overview

OneMonroe is a broad-based industrial manufacturer and distributor offering a comprehensive portfolio of hardware components and custom manufacturing services. The core product lines include mechanical components (hinges, casters, knobs, handwheels, fasteners, seals, magnets, leveling pads, gas springs, quick-release pins, hoist rings, toggle clamps, and bearings) supplemented by custom manufacturing capabilities and Vendor Managed Inventory (VMI) programs. The company has expanded into specialized wire and cable offerings through acquisitions, including custom cable assemblies, wiring harnesses, molded cables, box builds, fiber optic cables, copper cables, and military/aerospace spec cables. Recent acquisitions include Northwest Fastener Sales (2014), Spangle Fasteners (2018), Electronic Fasteners rebranded as Monroe EFI (2023), and FASCO (2023). Services include custom manufacturing, global sourcing, VMI programs, and vending machine solutions for industrial supply management.

Differentiator

Problem solved

Functional benefit

Products and services

• Hinges Industrial hinges including standard and piano hinges for OEMs and equipment manufacturers across multiple industries.
• Casters Industrial casters for material handling and equipment mobility applications.
• Seals Industrial seals for leak prevention and environmental protection in machinery and equipment.
• Drawer Slides Ball-bearing and heavy-duty drawer slides for cabinet and enclosure applications.
• Adjustable Handles Adjustable handles for industrial machinery, equipment, and workstations.
• Handwheels Manual control handwheels for valves, machinery adjustments, and positioning systems.
• Knobs Industrial knobs for machine controls, equipment adjustments, and ergonomic gripping.
• Magnets Industrial magnets for holding, lifting, separation, and magnetic mounting applications.
• Gas Springs Industrial gas springs for lift assistance, counterbalancing, and controlled movement in enclosures, hatches, and equipment.
• Hoist Rings Safety hoist rings for heavy-duty lifting, pivoting, and load handling in industrial environments.
• Toggle Clamps Toggle clamps and snap-on toggle clamps for secure clamping in welding, assembly, and machining processes.
• Fasteners Industrial fasteners including bolts, nuts, screws, and specialized fastening components sourced from Monroe's fastener subsidiaries.
• Bearings Industrial bearings for rotational support, reduced friction, and mechanical movement in various equipment.
• Workholding Products Custom workholding devices including fixtures, clamps, step blocks, jig feet, and accessories for machining setups, plus bolts, cams, clamp straps, fixture keys, nuts, pneumatic presses, studs, washers, and workholding kits.
• Custom Manufacturing Built-to-order parts and custom products offering precision machining, finishing, packaging, and volume production for unique OEM specifications and applications.
• Custom Cables & Wiring Custom cable assemblies and wiring harness solutions for industrial, military, aerospace, and commercial applications, including ruggedized designs for harsh environments, EMC protection, and high-temperature resistance meeting MIL-STD-454 and IPC/WHMA-A-620 Class 3.
• Custom Wiring Harnesses Custom wire harnesses for military, aerospace, rail transport, simulation, medical, robotics, and telecommunications applications.
• Custom Box Builds Full-service custom box builds including enclosure fabrication, PCB assemblies, and complete final assembly for industrial, military, aerospace, and rail transport applications.
• Military Spec Cables & Wiring Military grade cable and wiring solutions meeting mil-spec standards for land, sea, air, communications, weapon systems, and radar applications.
• Aerospace Cables Custom aerospace and mil-spec cable and wiring solutions for aero, military, and commercial applications meeting IPC/WHMA-A-620 Class 3 and MIL-STD-454 specifications.
• Rail Transport Cables & Wiring Rail and transit cable and wiring solutions for high-speed rail, metro transit, and freight rail systems designed for challenging environments.
• Vendor Managed Inventory (VMI) Full-line VMI programs customizable to customer needs where Monroe's field experts monitor and replenish customer inventory, lowering transaction, receiving, purchasing, and quality costs.
• VMI Vending Machines Smart vending machines placed within customer facilities offering 24/7 access to industrial supplies with real-time inventory tracking, automated reordering, touchscreen interface, and cell/Wi-Fi connectivity.
• Sourcing & Global Manufacturing Global sourcing services with Asian manufacturing partnerships covering material procurement, logistics, customs clearance, and just-in-time delivery solutions.

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core.

• Electronic Fasteners, Inc. (EFI)coreStrategic or Co-development Partner · 8 August 2023OneMonroe acquired Electronic Fasteners, Inc. (EFI), a wholesale distributor, rebranding it as Monroe EFI. The acquisition aims to improve customer service, expand product offerings, and strengthen supplier partnerships. This acquisition is part of OneMonroe's strategy to expand its VMI capabilities and market presence.
• FASCO LVcoreStrategic or Co-development Partner · 1 January 2023In 2023, FASCO LV joined the OneMonroe family. FASCO has 40 years of experience in the fastener industry specializing in supplying construction projects with every fastener the project calls for. This acquisition strengthened OneMonroe's position in the construction fastener market.
• Spangle FastenerscoreStrategic or Co-development Partner · 1 January 2018Founded in Fort Wayne in 1974 by Jim Spangle, Spangle Fasteners specialized in the local foundry market and joined OneMonroe in 2018. The acquisition expanded OneMonroe's customer base and product offering in the Midwest region.
• Northwest Fastener SalescoreStrategic or Co-development Partner · 1 October 2014Northwest Fastener Sales, established in 1969, joined the OneMonroe family in October 2014. Specializing in technical and industrial fastener products in the Pacific Northwest for 46 years, the acquisition enhanced OneMonroe's VMI capabilities and regional presence.
• Asian Manufacturing PartnerscoreTechnology or IntegrationOneMonroe has strategically partnered with manufacturers, particularly in Asia (including China), to secure reliable supply chains and access to competitive pricing. These partnerships involve comprehensive plant audits, production capability assessments, and ongoing quality control to ensure product quality.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Bossard Group: Global specialist in fastening solutions and intelligent VMI/Industry 4.0 factory logistics, directly comparable to Monroe's fastener line and SmartFactory/VMI vending positioning.
• Fastenal Company: Largest U.S. distributor of fasteners, tools, and industrial supplies with a well-developed industrial vending and VMI platform that directly mirrors Monroe's OneMonroe vending and VMI strategy, serving overlapping manufacturer and MRO customers.
• Applied Industrial Technologies: Industrial distributor of bearings, power transmission, fluid power, and MRO products, competing for the same manufacturing customers with a comparable mix of catalog, branch, and technical service offerings.
• Würth Industry: Industrial division of the Würth Group focused on fastening and assembly materials with C-Parts management and VMI services for manufacturers, mirroring Monroe's vendor consolidation and VMI vending pitch.
• Mutual Screw & Supply: U.S. fastener and industrial supply distributor with custom manufacturing and VMI services, serving overlapping manufacturer customers in similar regional markets.
• MSC Industrial Direct: Direct competitor in metalworking and industrial MRO supplies, offering a broad catalog of fasteners, hand tools, and components to manufacturers across similar end markets and customer segments.
• Bisco Industries: Distributor of fasteners, electronic hardware, and components with VMI programs to OEM and contract manufacturer customers, directly comparable to Monroe's fastener and hardware distribution model.
• Lawson Products: Distributor of fasteners, parts, and maintenance supplies to industrial customers via direct sales and VMI, with a product breadth and customer profile closely aligned with Monroe's industrial hardware lines.
• McMaster-Carr: Iconic industrial hardware catalog company selling hinges, casters, knobs, fasteners, seals, and similar components to manufacturers with a digital-first, transparent-pricing model that contrasts with Monroe's quote-based approach.

Broad incumbents

• W.W. Grainger: Largest U.S. industrial MRO distributor with a catalog covering fasteners, hand tools, and facility maintenance supplies, plus a KeepStock/VMI offering; competes with Monroe for the same manufacturing customer wallet.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/monroeengineer
• Facebookfacebook.com/monroeengineering
• LinkedInlinkedin.com/company/monroe-engineering

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries4 records

Funding overview

Funding rounds1 record

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A2 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Monroe Engineering