Master Lock Company

What Master Lock Company does

Master Lock Company LLC, founded in 1920 and headquartered at 6744 S. Howell Avenue, Oak Creek, Wisconsin, is a manufacturer of physical security products serving consumer, commercial, industrial, and institutional end markets. The company is a wholly-owned subsidiary of Fortune Brands Innovations, Inc., a diversified consumer products conglomerate, and operates the Master Lock, ProSeries, American Lock, and SentrySafe brands. Its product portfolio spans consumer-grade combination padlocks (1500 Series, 175 Series resettable brass), laminated and solid-body ProSeries padlocks, Bluetooth-enabled electronic padlocks and lock boxes, lock boxes and safes, trailer/hitch locks, and a lockout/tagout (LOTO) safety product line covering OSHA 1910.147 / NFPA 70E compliance use cases. Proprietary technologies include BlockGuard Anti-Shim, Weather Tough cover design, Zenex Thermoplastic padlock bodies, Hidden Shackle construction with boron alloy shackle and 6-pin tumbler with spool pins, and a Push to Lock mechanism for receiver hitch locks.

Technology is built around connected security: Bluetooth-enabled padlocks and lock boxes pair with the Master Lock Vault smartphone platform; connected commercial keypad door locks support up to 500 unique access codes with Z-Wave and Zigbee radios for property management and smart building integration; and the Master Lock Vault Enterprise cloud platform issues and revokes access in real time. The cLOTO Connected Lockout/Tagout software addresses digital hazardous energy control procedures for industrial facilities. Professional safety services — including LOTO program development, arc flash and electrical safety consulting, and OSHA/NFPA compliance support — are delivered by an in-house team to enterprise accounts.

The business operates across three revenue streams: (1) hardware product sales via direct-to-consumer e-commerce (store.masterlock.com, shipping to contiguous U.S.), a B2B distributor portal (masterlockshop.com), physical retail, and custom-engraved enterprise SKUs, with unit pricing spanning roughly $5.82 (basic hasps) to $865 (advanced commercial LOTO systems); (2) recurring subscriptions on Master Lock Vault Enterprise and connected Bluetooth locks (4400EC, 5440EC) on an annual billing cadence; and (3) quote-based, multi-year professional safety service contracts covering OSHA/NFPA compliance assessments and custom LOTO program development. Named enterprise customers include Southern Company (utilities), UC San Diego Health (healthcare), Cushman & Wakefield (commercial real estate), and an unnamed national retailer. Geographic reach spans the United States, Canada, the United Kingdom, Germany, and France.

Name

Master Lock Company

Legal name

Master Lock Company LLC

Website

https://masterlock.com

Company type

Private

Founded year

1920

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Master Lock Company LLC, founded in 1920 and headquartered in Oak Creek, Wisconsin, manufactures padlocks, combination locks, Bluetooth smart locks, lockout/tagout safety equipment, and fireproof safes under the Master Lock, ProSeries, American Lock, and SentrySafe brands for consumer, commercial, and industrial customers worldwide.

Ownership category

akta.pro rank

Product category

Locks and Physical Security Hardware

NAICS

Security Systems Services (except Locksmiths) (561621), Security Systems Services (56162)

SIC

Services-Detective, Guard & Armored Car Services (7381)

akta.pro primary industry

Security Seals & Locking Devices (Cable Seals, Padlock Seals, Meter Seals) (IMALANAG)

akta.pro secondary industries

Smart Lock Software Platforms & Mobile Apps (Access Control SaaS) (HSAHAEAG), Residential Smart Lock Hardware (Keypad, Keyless, Biometric, Connected) (HSAHAEAA), Smart Garage Door & Gate Controllers Retail (CRAIAMAK), Self-Storage Security & Access Services (Gated Entry, Keypad, CCTV) (HSAKAGAJ)

Keywords

• Padlock manufacturing
• Physical security products
• Lockout tagout solutions
• Combination locks
• Commercial locking hardware

Headquarters

HQ city

Oak Creek

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Product Sales: Sale of physical security products including padlocks, combination locks, Bluetooth/electronic locks, lock boxes, safes, door hardware, chain/cable locks, U-locks, and accessories. Products sold through e-commerce, distributors, and retail channels.
2. Professional Safety Services: Consulting services for lockout/tagout compliance, electrical safety programs, OSHA/NFPA compliance assessments, and custom safety program development for enterprise facilities.
3. Master Lock Vault Enterprise Software: Cloud-based access management platform for issuing and revoking access to smart locks in real-time. Platform supports organizational lock system management.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels4 records

Core offering

Master Lock designs, manufactures, and distributes physical security hardware including padlocks, combination locks, Bluetooth/electronic smart locks, lock boxes, safes, chain and cable locks, U-locks, trailer receiver locks, door hardware, and lockout/tagout safety equipment for consumer and commercial buyers. The company complements its hardware line with two software platforms — Master Lock Vault Enterprise for real-time Bluetooth access management and cLOTO for connected lockout/tagout procedures — and offers Professional Safety Services for OSHA/NFPA compliance.

Product overview

Master Lock Company offers a comprehensive physical security product portfolio centered on padlocks, combination locks, lock boxes, safes, door hardware, and accessories, augmented by Bluetooth-enabled connected locks and complementary software platforms. The core hardware lineup includes laminated and solid body padlocks (ProSeries), resettable and preset combination locks (1500 Series, 175 Series), Bluetooth electronic locks, and specialized lockout/tagout safety padlocks compliant with OSHA standards. Key platform offerings include Master Lock Vault Enterprise for real-time access management and cLOTO for connected lockout/tagout procedures. The company also provides smart keypad door locks (cylindrical and mortise) for commercial applications with Z-Wave/Zigbee connectivity, professional safety consulting services, and customization options including laser engraving.

Differentiator

Problem solved

Functional benefit

Brands

• American Lock: Commercial/industrial lock brand offering high-security padlocks and hasps.
• ProSeries
• Master Lock Vault
• cLOTO

Products and services

• 178D Solid Body Set Your Own Combination Lock Black solid body combination padlock with customizable four-digit code, hardened steel shackle, and weather-resistant design for indoor and outdoor use on gates, sheds, and storage units.
• 175LH Resettable Combination Brass Padlock 2-inch wide solid brass body resettable combination padlock with 2-1/4 inch hardened steel shackle and 10,000 combination capacity for security gates, job boxes, and utility meters.
• 6121KA ProSeries Weather Tough Laminated Padlock 2-1/8 inch ProSeries Weather Tough laminated steel rekeyable pin tumbler padlock with exclusive cover protecting against water, ice, dirt and grime for harsh outdoor conditions and truck doors.
• 6271KA ProSeries Hidden Shackle Padlock 2-7/8 inch reinforced zinc die-cast hidden shackle rekeyable padlock with concealed shackle design defeating pry and cut attempts; features high security 6-pin cylinder with spool pins for commercial transportation and industrial applications.
• 1479DAT Class III/IV Barbell Trailer Receiver Lock 5/8 inch stainless steel trailer receiver lock with Push to Lock mechanism, Weather Tough seal, and 10,000 lb load rating for Class III/IV hitch applications.
• 2848DAT Swivel Head Receiver and Adjustable Latch Lock Set Trailer coupler lock set including keyed alike receiver and latch locks; receiver fits 1/2 inch and 5/8 inch receivers with Push to Lock mechanism and Weather Tough seal.
• 8127TRI Keyed Braided Steel Cable Lock 6 foot x 5/16 inch keyed braided steel cable lock 3-pack in assorted colors with vinyl coating for scratch protection; all locks keyed alike for bikes, kayaks, and outdoor gear.
• 1530DCM Dial Combination Lock with Aluminum Cover 1-7/8 inch metal body dial combination lock with anodized aluminum cover in assorted metallic colors; features anti-shim locking mechanism for cabinets and indoor use.
• 5401D Heavy Duty Wall Mount Lock Box 3-1/4 inch x 2-1/4 inch heavy duty wall mount lock box for secure key storage in commercial and residential applications.
• 5480D Portable Lock Box Next-generation portable lock box for secure real estate property access and visitor key storage; designed for moving season and flexible deployment.
• Master Lock Vault Enterprise Integrated cloud-based access management platform enabling real-time issuance and revocation of access permissions for individuals or groups; paired with Bluetooth-enabled padlocks, lock boxes, and door hardware for comprehensive organizational lock system control.
• cLOTO Connected Lockout Tagout Connected lockout/tagout software solution addressing modern facility safety challenges by enabling digital lockout procedures and compliance tracking for industrial environments.
• Connected Commercial Keypad Door Locks (Cylindrical and Mortise) Smart keypad door locks for commercial businesses including healthcare, offices, and retail with cylindrical and mortise options; supports up to 500 user codes, Z-Wave/Zigbee connectivity, auto-lock, DoorSense, and remote access capabilities.
• Professional Safety Services (Lockout/Tagout and Arc Flash) Professional safety services including lockout/tagout program development, arc flash and electrical safety consulting, OSHA 1910.147 and NFPA 70E compliance support, and facility safety assessments for industrial customers.

Quantifiable outcome

• Over 2,115 products for business use and 907 products for locker/storage applications
• +2 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered minor.

• Los Angeles Mayor's OfficeminorGTM or Marketing Partner · 24 November 2025Master Lock partnered with the Los Angeles Mayor's Office and the Boys & Girls Club of San Fernando Valley to distribute 500 fireproof safes to residents in high-risk fire zones during a community event. The safes are tested to UL standards to ensure fire resistance and are part of an initiative to promote fire safety awareness. Future distribution events are planned.
• Boys & Girls Club of San Fernando ValleyminorGTM or Marketing Partner · 24 November 2025Community partnership to distribute 500 fireproof safes to residents in high-risk fire zones. The Boys & Girls Club facilitated the community event as part of their outreach programs to promote fire safety awareness and emergency preparedness among local residents.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• ABUS: German family-owned manufacturer of padlocks, bike locks, and security solutions with global distribution. Direct competitor in padlocks, combination locks, and bicycle/U-lock categories.
• Schlage (Allegion): Allegion's flagship lock brand offering residential and commercial door hardware, deadbolts, and electronic locks. Closest direct competitor to Master Lock across both mechanical and connected access categories.
• Kwikset (Spectrum Brands): Major residential lock and door hardware brand competing with Master Lock in padlocks, deadbolts, and increasingly smart locks (Kevo/ Halo). Overlapping product mix and retail channel presence.
• Yale (Allegion): Global lock brand owned by Allegion, competing across residential, commercial, and increasingly smart/connected locks. Directly comparable to Master Lock's combination and electronic lock portfolios.
• Medeco (Allegion): High-security commercial lock brand with master keying and restricted key systems. Directly comparable to Master Lock's ProSeries and high-security padlock lines for institutional and industrial buyers.

Broad incumbents

• ASSA ABLOY: Global access solutions conglomerate owning dozens of lock brands. Overlaps with Master Lock across commercial locks, padlocks, electronic access control, and locking hardware, but at much broader scale and global footprint.

Emerging players

• August Home: Smart lock pioneer (acquired by ASSA ABLOY/Yale) focused on retrofit smart deadbolts and app-based access. Competitive in the connected/IoT segment where Master Lock Vault is positioned.
• Latch: Smart building access platform serving multifamily and commercial real estate with hardware + SaaS model. Direct comparability to Master Lock Vault Enterprise and connected commercial keypad locks.
• SALTO Systems: Electronic access control provider for commercial real estate, hospitality, and education. Comparable to Master Lock's connected commercial keypad locks and Vault enterprise platform.
• RemoteLock: Cloud-based access control platform supporting smart locks from multiple brands. Comparable software/ecosystem layer to Master Lock Vault, particularly for self-storage, vacation rental, and small commercial deployments.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/MasterlockCompany
• Facebookfacebook.com/masterlock
• LinkedInlinkedin.com/company/master-lock-company
• Instagraminstagram.com/masterlock_official
• Xx.com/MasterLockUS

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries2 records

Funding overview

Funding rounds1 record

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Master Lock Company