The honest version of "does it integrate with my software." These are the systems this industry actually runs on, and what each one means for a build.
ServiceTitan / Jobber / BuildOpsField service management
The service side's system of record, with BuildOps in particular built for commercial contractors carrying both project and service work.
Procore / project systemsConstruction workflow
Where submittals, RFIs and change orders live on the project side, driven by the general contractor rather than by you.
Monitoring platformsRecurring revenue
Central station monitoring and its account records, which are the recurring revenue base and the thing an acquirer values.
Access control and video platformsManaged systems
Brivo, Genetec, Avigilon and similar, holding client system configuration and health that a service agent can read.
Distributor portalsPurchasing
ADI, Anixter and similar, where pricing, availability and order status live behind logins rather than interfaces.
Licensing and certificationCompliance
State alarm licensing plus manufacturer certifications, both required for specific work and both on renewal cycles.
QuickBooks or construction accountingFinance
Job costing for projects alongside recurring billing for monitoring, which rarely coexist cleanly.