One hub for every building system.
24 building systems. 103 sensor types. One interpreted operating state — with coordinated dispatch to the right trade, at the right time. Insight-only.
The problem
Your portfolio runs a BMS, a CMMS, fire panels, elevator controllers, and now an IoT gateway. And a facilities team reconciling alerts manually — after the damage report is written, after the tenant complaint is filed. The point systems work. The coordination between them doesn’t.
The Custra difference
Custra is the hub that sits above every system you already own. It reads what the BMS, historians, and sensors produce across all 24 building systems. It maintains a live operating state for each system. And when it detects a fault onset — the HVAC temperature trend, the moisture drift before the visible leak, the elevator signature departing baseline — it coordinates a single, correct response: one dispatch, one trade, no alarm flood.
Not another dashboard. The coordination hub.
What it catches — every day, in the background
HVAC deviation onset
Moisture cascade
Life-safety pre-event
Root-cause coordination
Risk-ranked deferred maintenance
Elevator anomaly onset
Portfolio fault pattern
Federated coupling graph
The three invariants
Every claim Custra makes reinforces three architectural commitments. They hold at every layer, in every deployment, for every customer.
Insight-only
Custra observes, predicts, and coordinates. It never touches a thermostat, valve, panel, or control system. Permanent — not a phase, not a configuration, not a workaround.
Causal, not correlational
The coupling graph is learned from interventional evidence — which systems actually clear when the root is fixed — not from co-occurrence. No spurious edges. No confounders treated as causes.
Density-native
Intelligence compounds with buildings. 100 buildings → coupling graph fully learned in 3 months. 1,000 buildings → federated failure models; the moat lives. One building alone would take years.
How it plugs in
Standards on one side. Building-vendor connectors on the other. One appliance in your tenant, your on-premises DMZ, or your air-gap.
Standards-based
OPC-UA · BACnet/IP · Modbus · MQTT · REST · SFTP · syslog · mTLS · SAML 2.0 · SCIM 2.0
Building connectors
OSIsoft PI · Siemens Desigo CC · Johnson Controls Metasys · Honeywell Niagara · Schneider EcoStruxure · IBM Maximo · Archibus · ServiceMax · FieldAware · BuildingEngines
Deploy your way
Cloud tenant
Per-property namespace, your data residency choice, continuous updates.
On-prem connected
Signed appliance in your datacenter or building MDF. Federation via mTLS.
Air-gap
Zero automated outbound. Federation via signed daily pull and monthly push.
From day one to density
50 buildings → cross-portfolio benchmarks turn on. 100 buildings → coupling graph fully learned; every response gets sharper. 1,000 buildings → federated failure models — the moat lives.
Same platform. Same subscription. Intelligence switches on at density. The more buildings on the network, the faster causal learning converges for every building — including yours.
Design-partner program
Custra is entering its design-partner phase — working with portfolio owners, REITs, and facility-management teams to prove detection on real building data and build the network from its first node.