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Willow vs Verdigris

Two AI platforms that watch building and facility equipment for faults, from different starting points. Willow is operational AI for buildings and infrastructure that unifies facility data into a digital twin and knowledge graph, with agents, Copilot and Active Control. Verdigris is electrical intelligence built on its own high-frequency circuit meters, now focused on data centers. Willow publishes no prices; Verdigris lists a starting Cloud price. Desk research from vendor sites read Nov 2, 2026; no winner.

DESK RESEARCH FROM VENDOR SITES. Compiled from vendors' public websites (accessed Nov 2, 2026). Vendor claims are not verified by Means & Methods Lab. No scores or rankings.

In short: Willow (Building operations AI; no public prices (quote / sales)) vs Verdigris (Electrical intelligence & energy sensing; vendor publishes prices). Facts last checked Nov 2, 2026. No winner declared; desk research from vendor sites.

Side by side

Willow vs Verdigris: vendor-published facts side by side
Sheet rowWillowVerdigris
CategoryBuilding operations AIElectrical intelligence & energy sensing
AI role (our label)AI-firstAI-first
What it does"Operational AI" for buildings and infrastructure. Willow unifies facility data (sensors, HVAC, occupancy) into a digital twin and knowledge graph, connects live conditions with equipment history and system relationships, detects faults with root-cause diagnostics, and prioritizes issues by cost, energy, comfort and risk. Agents run coordinated multi-step workflows and route work orders with supporting context; Willow Copilot lets teams ask about assets, spaces, live conditions and work history and create custom briefings; Active Control adjusts building-system operation within configured limits, with defined permissions, visible actions and operator overrides; and Functional Testing tracks conditions after an intervention within diagnostic and preventive maintenance workflows. Platform pages: Willow Copilot, Knowledge Graph, Digital Twin and Activate Packs (data connectors and AI skills). Partners listed: Microsoft, Carahsoft and HPE; solutions for education, airports and healthcare. Maintenance-cost, downtime, carbon and energy figures and avoidable-cost examples are vendor claims not used here.AI-native electrical intelligence that uses high-frequency circuit meters to flag equipment degradation, with a current focus on data centers. Its clamp-on EV2 / EV2 Pro meters sample circuits at 8 kHz (vs a typical BMS at 1 Hz) for per-circuit waveform analysis that flags equipment degradation, stranded capacity and safe operating headroom. Applications include Signals (degradation triage) and orchestration inputs over REST, MQTT, Modbus and BACnet. The pricing FAQ says existing Schneider, Honeywell, Eaton or Vertiv gear can feed data over BACnet, Modbus, REST or MQTT, ServiceNow can auto-create work orders from alerts, and API and webhook docs are public with no NDA; the platform page describes clamp-on CTs it says install with zero downtime and cellular backhaul that needs no firewall changes (vendor claims). The pricing page states SOC 2 Type II certification, offers Cloud, Forge and Sentinel under one contract, and says Sentinel deployments take about four weeks with a dedicated solution architect. The homepage offers a free four-week rectifier health audit described as having no hardware commitment, and the pricing page describes Signals Founding Access, a sponsored co-development cohort in which Verdigris says it funds the hardware and engineering. Current product focus is AI data centers, colocation and enterprise data centers; commercial and industrial buildings are served through partner EnergyHub360, and existing C&I customers continue with full Verdigris support. Capacity, deployment-size, case-study, ROI and payback figures are vendor claims and are not used.
Who it's forOwners and facilities teams in higher education, healthcare, retail, aviation, and more.Data center and colocation operators; commercial/industrial via partner; owners needing circuit-level electrical ground truth.
Pricing (as publicly stated)No public prices. The vendor site has no pricing or plans link in its navigation or footer, /pricing and /plans return not found, and the call to action is Get a demo. Confirm pricing with the vendor.Vendor-listed starting price (pricing page): Cloud (OpEx subscription) from $25,000 per MW per year; Forge (CapEx perpetual license plus annual maintenance) and Sentinel (enterprise, audit-grade subscription with custom terms) without listed prices. The FAQ says pilots and sites under 1 MW are charged per gateway, switching to per-MW pricing past about 50 gateways or 2 MW, and that pilots run with no commitment on one facility with 5 gateways for 30 to 90 days. The online deployment estimator is labeled an order-of-magnitude estimate, not a quote, with final pricing scoped on a call. Confirm current pricing with the vendor.
User reviewsNo reviews yet. Read or writeNo reviews yet. Read or write
Vendor links
Sources

Facts last checked: Nov 2, 2026. Prices change; check the vendor page before relying on them.

Where the vendor descriptions differ

  • Partly like-for-like: both flag equipment problems and route work. Willow works across facility systems (sensors, HVAC, occupancy) for owners in sectors such as higher education, healthcare and airports; Verdigris works from circuit-level electrical data and says it now focuses on AI data centers, colocation and enterprise data centers, with commercial and industrial buildings served through its partner EnergyHub360.
  • Data source: Willow connects existing facility data with Activate Packs (data connectors and AI skills) into a digital twin and knowledge graph. Verdigris sells clamp-on EV2 / EV2 Pro meters that sample circuits at 8 kHz and says existing Schneider, Honeywell, Eaton or Vertiv gear can also feed data over BACnet, Modbus, REST or MQTT (vendor statements).
  • What it does with the data: Willow lists fault detection with root-cause diagnostics, prioritizing issues by cost, energy, comfort and risk, agents that route work orders, Willow Copilot for questions about assets and work history, Active Control within configured limits and Functional Testing. Verdigris lists per-circuit waveform analysis that flags equipment degradation, stranded capacity and safe operating headroom, Signals for degradation triage, and says ServiceNow can auto-create work orders from alerts.
  • Pricing (vendor pages read Nov 2, 2026): Willow has no pricing page and offers Get a demo. Verdigris lists Cloud from $25,000 per MW per year, with Forge (perpetual license plus maintenance) and Sentinel (enterprise) without listed prices, pilots on one facility with 5 gateways for 30 to 90 days, and an estimator it labels an order-of-magnitude estimate, not a quote. See each tool page for detail.
  • Not used here: customer quotes, savings, energy and avoidable-cost figures from either vendor (vendor material). Facts for both come from vendor websites (desk research).

Paraphrased from the sources listed above. Vendor claims are reported as claims.

What users say

The facts above come from vendor websites. Whether either tool is any good for your work is something only people who use them can say. These are member reviews, all ratings shown, never edited or removed for being negative.

Used either of these? Share your take

Good or bad, an honest review from an estimator, PM or super helps the next team more than another vendor demo. You post under a handle; your email is never shown.

Questions to ask in your review

  • Whether Willow can take Verdigris circuit data as one of its connected sources
  • Which fits a portfolio with both office buildings and a data hall
  • What did you use it for, on what kind of work and project size?
  • How long did setup and training take, and who on your team did it?
  • What does it cost you in practice, compared with what the sales call said?
  • Where does it fall short, and what would make you switch?

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