Sentinel Systems
Sentinel Systems provides cloud-based self-storage management software, Defender-series access control hardware, and self-storage website design services, targeting independent self-storage operators and dealers across the US, Canada, and eleven additional international markets.
- Company typePrivate
- Founded1977
- HeadquartersLakewood, United States
- Headcount1–10
- GTM typeB2B
- OfferingHardware or Manufacturing
What Sentinel Systems does
Sentinel Systems LLC is a privately held Colorado-based provider of access control hardware and management software purpose-built for the self-storage industry. The company was founded in 1977 and operates from Golden, Colorado, with a legal entity registered in Lakewood; it positions itself as an "operator-first" alternative to the large consolidated self-storage platforms. Its product architecture combines cloud-based property management software (Sentinel Anyware), a proprietary line of access control hardware (Defender Lite, Defender, and Defender Pro keypads plus door alarm, remote access, lighting, and elevator control modules), and a self-storage website design service that enables online rentals and bill pay. Sentinel hardware is designed to retain tenant codes locally and operate with the PC offline, which supports resilience and reduces switching friction for facility operators.
The business model spans four revenue streams: monthly subscriptions for Sentinel Anyware, hardware sales through a combination of direct enterprise sales and an authorized dealer network spanning US states and Canadian provinces, professional services for self-storage website design, and usage-based technical support priced at $75 per 30 minutes. The Sentinel hardware integrates with at least eight third-party property management platforms (including Sitelink, Self Storage Manager, Storage Commander, StorEdge, Domico, Tenant, Space Control, and 6Storage) and multiple payment processors (Xplor, Clearent, PPI Paymover), giving the company an interoperability position across a fragmented software landscape. The company also publishes toll-free support numbers in eleven countries outside the US and Canada.
The company is founder/management-owned with no institutional funding or parent company disclosed. A leadership transition in 2022 installed Christopher Baird as CEO and Dee Jay Skinner as CTO, and the company launched Sentinel Watchtower in 2024 as a new security monitoring and access control offering. The named team of approximately 18 people includes executive leadership, sales, marketing, production, support technicians, and remote engineers, consistent with the firmographic headcount range of 1-10 (likely reflecting full-time equivalents versus named personnel).
Sentinel Systems firmographics
Firmographics- Name
- Sentinel Systems
- Legal name
- Sentinel Systems LLC
- Website
- https://sentinelsystems.com
- Company type
- Private
- Founded year
- 1977
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Sentinel Systems provides cloud-based self-storage management software, Defender-series access control hardware, and self-storage website design services, targeting independent self-storage operators and dealers across the US, Canada, and eleven additional international markets.
- Ownership category
- akta.pro rank
Sentinel Systems industry classification
Industry- Product category
- Self-Storage Access Control & Management Systems
- NAICS
- Security Systems Services (56162), Computer Terminal and Other Computer Peripheral Equipment Manufacturing (334118)
- SIC
- Measuring & Controlling Devices, Nec (3829), Electrical Industrial Apparatus (3620)
- akta.pro primary industry
- Security Systems Monitoring & Dispatch (SOC/Remote Guarding) (IMAIAEAF)
Keywords
Where Sentinel Systems is headquartered
LocationHeadquarters
- HQ city
- Lakewood
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Sentinel Systems business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Supply Chain
Revenue model
- Software Subscription (Sentinel Anyware): Cloud-based property management software provided on a subscription basis with monthly billing. Access includes unit inventory management, tenant billing, lease generation, gate access integration, and reporting tools. Subscriptions can be cancelled at any time.
- Access Control Hardware: Sale of proprietary keypads (Defender Lite, Defender, Defender Pro), door alarms, remote access control systems, lighting control, and elevator control hardware for self-storage facilities. Hardware is sold through dealers and direct sales.
- Self-Storage Website Design Services: Professional website design and development services for self-storage facilities, including online rental capabilities, online bill pay integration, and mobile-responsive design. Custom branding and SEO optimization included.
- Technical Support Services: Premium support services with charges of $75 per 30 minutes for customers not under warranty or quarterly support programs. Also offers quarterly support programs for ongoing maintenance.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Sentinel Anyware Subscription (tiers not publicly disclosed) |
| Usage-based | Pay-as-you-go | Premium Support ($75 per 30 minutes) |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
Sentinel Systems product offering
Product offeringCore offering
Sentinel Systems designs, manufactures, and sells integrated management software and access control hardware for self-storage facility operators. Its core platform, Sentinel Anyware, is a cloud-based property management system providing unit inventory, tenant billing, lease generation, and gate access integration. The company also produces a proprietary keypad line (Defender Lite, Defender, Defender Pro) along with door alarms, remote access, lighting, and elevator control hardware, plus custom self-storage website design services.
Product overview
Sentinel Systems offers a unified platform-plus-hardware architecture for self-storage facility management consisting of three core product lines: (1) Sentinel Anyware - cloud-based management software providing unit inventory, tenant billing, lease generation, and access control integration; (2) Sentinel Self Storage Websites - custom website design for online rentals and bill pay; and (3) Access Control Hardware including Defender keypad series (Defender Lite, Defender, Defender Pro) plus security modules (Door Alarms, Remote Access Control, Lighting Control, Elevator Control). Legacy products include Winsen Property Manager desktop software with supporting modules. All components are designed to integrate with each other and with third-party property management software platforms.
Differentiator
Problem solved
Functional benefit
Brands
- Sentinel Anyware: Cloud-based management platform designed for self-storage facilities with features including unit inventory management, tenant billing, lease generation, gate access integration, and reporting tools.
- Winsen
- WinSen Property Manager
- Platinum Sentinel
- WinSen Property Sentinel
- Defender Keypad
- Defender Lite Keypad
- Defender Pro Keypad
- Sentinel Watchtower
Products and services
- Sentinel Anyware Cloud-based self-storage management software providing unit inventory management, tenant billing, lease generation, gate access integration, and real-time reporting for self-storage facility operators.
- Sentinel Self Storage Websites Custom website design service built for self-storage facilities, enabling online rentals, bill pay, and mobile-responsive tenant experience integrated with management software.
- Defender Pro Keypad Advanced keypad with Smart Keypad Technology featuring customizable tenant-by-tenant messages, configurable access levels, and multiple passcodes per unit for enhanced property management integration.
- Defender Keypad Reliable keypad designed to retain all valid tenant codes and operate with PC on or offline, featuring backlit metal keys and weather-resistant enclosure.
- Defender Lite Keypad Compact keypad delivering robust performance for building entrances, hallway doors, elevators, or areas with limited space, with a space-saving design and display options.
- Door Alarms Individual door alarm system monitoring open/close status of each storage unit door with over 2,000-point monitoring, automatic arm/rearm functionality, multiple door arm/disarm capability with a single code, and siren/strobe trigger functionality.
- Platinum Sentinel Remote Access Remote access control system for unmanned satellite storage locations using internet connection, offering real-time tenant entrance/exit reporting, built-in internet outage safeguards, and menu-driven software for gate control from computer or mobile device.
- Lighting Control System allowing lights or relay-controlled electrical devices to be turned on/off according to tenant activity and/or time of day.
- Elevator Control Access control system preventing unnecessary elevator travel and limiting tenant access to authorized floors while maintaining high security levels.
- Winsen Property Manager Legacy desktop-based property management software for self-storage facilities, with documented features for tenant management, billing, and reporting.
- Sentinel Watchtower Security monitoring and access control solution introduced in 2024 under Sentinel's new leadership vision.
Companies that use Sentinel Systems
Customer profileNamed customers1 record
Segments4 records
Ideal customer profiles3 records
Sentinel Systems technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration12 records
Feature9 records
Sentinel Systems partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core.
- SitelinkcoreSoftware integration partnership where Sentinel's access control hardware seamlessly integrates with Sitelink property management software, enabling data flow and operational efficiency for self-storage facilities using both platforms.
- Self Storage Manager (SSM)coreIntegration compatibility ensuring Sentinel access control systems work with Self Storage Manager software platform.
- Storage CommandercoreAccess control integration partnership with Storage Commander property management software.
- StorEdgecoreIntegration compatibility between Sentinel hardware and StorEdge property management software.
- DomicocoreHardware/software integration partnership with Domico property management platform.
- Tenant (Hummingbird)coreIntegration compatibility ensuring Sentinel access control systems work with Tenant property management software.
- Space ControlcoreAccess control integration with Space Control property management software platform.
- 6StoragecoreIntegration partnership with 6Storage software solutions platform for self-storage management.
- XplorcoreThird-party payment processor used by Sentinel Anyware for credit card and ACH payment processing.
- ClearentcoreThird-party payment processor integrated with Sentinel Anyware for payment processing services.
- PPI PaymovercorePayment processing integration for credit card and ACH POS processing, available in Winsen 3.35 or higher through account token authentication.
Scale indicators2 records
Recent moves7 records
Expansion highlights6 records
Sentinel Systems competitors and assessment
Company assessmentDirect peers
- Storage Commander: Storage Commander is a self-storage property management software platform. It is a named Sentinel integration partner and a competing software vendor in the same vertical.
- SiteLink: SiteLink is one of the largest dedicated self-storage management software platforms, with its own access control ecosystem. It directly competes with Sentinel Anyware for the same self-storage operator buyer and is named as a current integration partner.
- PTI Security Systems: PTI is a leading manufacturer of access control hardware (keypads, door alarms, smart locks) purpose-built for the self-storage industry. It competes head-to-head with the Defender keypad line and door alarm products.
- storEDGE: storEDGE (now part of Storable) is a direct self-storage management software competitor with integrated access control. It targets a similar operator customer base as Sentinel Anyware.
- Nokē (by Janus International): Nokē provides smart-lock and mobile-access control hardware for self-storage facilities. It competes with Sentinel's Defender keypad line in the same access control category for self-storage operators.
- Open Tech Alliance: Open Tech Alliance provides access control and security hardware (including the INSOMNIAC and OpenTech IoE product lines) for self-storage. It directly competes with Sentinel's hardware business.
- Easy Storage Solutions: Easy Storage Solutions is a self-storage property management software provider that integrates with access control hardware. It is a direct SaaS competitor to Sentinel Anyware.
- 6Storage: 6Storage is a self-storage management software platform listed as one of Sentinel's integration partners and a direct competitor in the operator software category.
- Space Control: Space Control is a self-storage management software platform listed as a Sentinel integration partner and competing software vendor targeting the same self-storage operator customer.
Broad incumbents
- Storable: Storable is the largest aggregator of self-storage software brands (including storEDGE, SiteLink competitors, and marketing services). It represents the consolidating incumbent that Sentinel explicitly positions itself against.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Sentinel Systems social profiles
Digital presenceSentinel Systems financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sentinel Systems leadership team
Management profileNumber of profiles
Profiles1 record
Sentinel Systems funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sentinel Systems M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sentinel Systems
What does Sentinel Systems do?
Sentinel Systems designs, manufactures, and sells integrated management software and access control hardware for self-storage facility operators. Its core platform, Sentinel Anyware, is a cloud-based property management system providing unit inventory, tenant billing, lease generation, and gate access integration. The company also produces a proprietary keypad line (Defender Lite, Defender, Defender Pro) along with door alarms, remote access, lighting, and elevator control hardware, plus custom self-storage website design services.
Is Sentinel Systems a public or private company?
Sentinel Systems is a private company. It is classified as management employee owned and is currently operating.
When was Sentinel Systems founded?
Sentinel Systems was founded in 1977. It employs 1 to 10 people.
Where is Sentinel Systems based?
Sentinel Systems is headquartered in Lakewood, United States, in the North America region.
How does Sentinel Systems make money?
Four revenue lines are on record. Software Subscription (Sentinel Anyware) is the primary driver. The others are access Control Hardware, self-Storage Website Design Services and technical Support Services.
Who are Sentinel Systems's main competitors?
Direct peers on record are Storage Commander, SiteLink, PTI Security Systems, storEDGE, Nokē (by Janus International), Open Tech Alliance, Easy Storage Solutions, 6Storage and Space Control. Storable is listed as a broad incumbent.
Does Sentinel Systems have an API?
No public API is recorded for Sentinel Systems.
What industry is Sentinel Systems in?
Sentinel Systems's product category is Self-Storage Access Control & Management Systems. Its primary akta.pro industry code is IMAIAEAF, Security Systems Monitoring & Dispatch (SOC/Remote Guarding). Its NAICS code is 56162 and its SIC code is 3829.