We built and operate Perimeter OS, a multi-tenant SaaS for security companies. Use the platform, or have us build a system shaped around your contracts.
Perimeter OS, in action.
Two paths
Most software vendors selling to security companies have never run guard operations software in production. We have: Perimeter OS is a guard management platform we built from scratch and operate. Patrol and QR checkpoint scan windows, officer scheduling, a client portal, CRM & billing, and compliance monitoring in one dashboard. That gives you two ways to work with us.
The Platform: Perimeter OS
A ready-made, multi-tenant guard management SaaS: patrol & QR checkpoint scan windows, scheduling, client portal, CRM & billing, and compliance monitoring. If your operation fits, it's the fastest way to get running.
Explore Perimeter OS ↗ Path B / CustomA Custom Build
For security firms whose workflow doesn't fit off-the-shelf: unusual contract requirements, specialized reporting, or operations no subscription product models. We build it around how you actually run posts.
Start a conversation →What a custom guard tour system includes.
Built to your post orders, your client contracts, and your compliance obligations, and you own the code, the data, and the server.
QR / NFC Patrol Checkpoints
Guards scan checkpoints to prove tour compliance: timestamped, location-tied, and impossible to pencil-whip. Missed scans surface immediately.
Officer Scheduling
Post assignments, shifts, and coverage in one view, so supervisors know who's where, and open posts get caught before the client calls.
Client Portals with Live Reporting
Give property managers and clients their own login to see patrol activity and reports in real time. Proof of service without the weekly email thread.
Incident & Daily Activity Reports
Structured DARs and incident reports guards can file from a phone: searchable, exportable, and attached to the site and shift where they happened.
Billing & Invoicing
Turn scheduled hours and contracts into invoices without re-keying, so what you billed matches what you actually staffed.
Fire Watch Logging
Dedicated fire watch patrol logging for sites that require it: compliant records your clients and inspectors can rely on.
The proof, in production.
Security Guard Management
Multi-tenant SaaS for security firms: patrol & QR check-ins, scheduling, a client portal, CRM and billing in one dashboard.
Visit perimeter-os.com ↗ CRM SaaSMITS CRM
Multi-tenant CRM platform: contacts, deals, pipelines, AI calling, SMS & email cadences and a real-time command-center dashboard.
Read the case study →Platform pricing or a fixed-price build.
For the ready-made platform, see perimeter-os.com. Custom guard management builds run $10,000–$50,000+ depending on scope: one fixed number in the proposal before any work starts.
Platform pricing for the ready-made guard management SaaS lives there.
Depending on scope. One fixed number in the proposal before any work starts.
- STEP 01
Discovery call
20 minutes. You describe the most annoying process in your business; we tell you honestly whether it's worth automating.
- STEP 02
Fixed-price proposal
Scope, timeline, and one number. No hourly meters, no surprise invoices.
- STEP 03
Build in weeks
You talk directly to the engineer writing the code. Weekly working demos, not status reports.
- STEP 04
We run it, or hand it off
Managed hosting, monitoring, and support from $200/mo. Or take the keys: it's your code either way.
Straight answers.
Platform or custom: which do we need?
Start with the platform. A Perimeter OS demo will tell you quickly whether it fits your operation: patrol compliance, scheduling, client portal, and billing cover what most guard companies need. Go custom when your contracts demand workflows no off-the-shelf product models: unusual reporting obligations, specialized compliance, or operations that don't fit the standard mold. We'll give you a straight answer on the first call.
Do you actually understand security operations?
We built and operate Perimeter OS, our own guard management platform, so tour compliance, post orders, DARs, fire watch logs, and client reporting aren't abstractions to us. When you describe how your posts run, you won't be teaching your software vendor the industry from scratch.
Who owns a custom-built system?
You do: the code, the data, and the server, documented and in your name from day one. Keep us on for managed hosting and support (from $200/mo), or hand everything to your own team.
Ready to run tighter guard operations?
Tell us how your posts run today. We'll tell you in one call whether the platform fits or a custom build makes more sense.