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Willow vs Brightly (Siemens)

Two owner-side operations products that start from different places. Willow is an AI-first operational AI platform that connects building data, equipment history and live conditions to prioritize issues, answer questions, route work orders and adjust building systems within configured limits. Brightly, now sold as Siemens asset management software, is an established suite of CMMS, enterprise asset management, capital planning, energy and IoT monitoring products with AI features such as Maintenance Copilot and AI-driven asset health and capital planning. Neither publishes prices. Desk research from vendor pages read Oct 28, 2026; not tested, no winner.

DESK RESEARCH, NOT TESTED. Compiled from vendors' public websites (accessed Willow Oct 29, 2026; Brightly (Siemens) Oct 28, 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 Brightly (Siemens) (Asset management & CMMS; no public prices (quote / sales)). Facts last checked Willow Oct 29, 2026; Brightly (Siemens) Oct 28, 2026. No winner declared; not tested.

Side by side

Willow vs Brightly (Siemens): vendor-published facts side by side
Sheet rowWillowBrightly (Siemens)
CategoryBuilding operations AIAsset management & CMMS
AI role (our label)AI-firstAI features added to established product
What it does"Operational AI" for buildings and infrastructure that turns facility data into a digital twin, detects faults and recommends actions. It unifies facility data (sensors, HVAC, occupancy) into a digital twin and knowledge graph, detects faults across systems with root-cause diagnostics and multi-dimensional impact scores (cost, energy, comfort, risk), Willow Copilot for asset history and recommended actions, and Active Control for autonomous response. Vendor cites 25% lower maintenance costs and 20% less downtime for critical systems such as refrigeration (vendor claims, not verified). Re-read Oct 17, 2026: platform pages listed are Willow Copilot, Knowledge Graph, Digital Twin and Activate Packs (data connectors and AI skills); partners listed are Microsoft, Carahsoft and HPE; the homepage adds a 7% reduction in carbon emissions claim (vendor claim). Re-checked Oct 19, 2026: the homepage is unchanged in substance: it says Willow unifies building data, predicts failures and takes action, with Willow Copilot for asset history and recommended actions and autonomous response to weather, grid shifts and failures. Platform pages are still Willow Copilot, Knowledge Graph, Digital Twin and Activate Packs, partners Microsoft, Carahsoft and HPE, and the 25% maintenance-cost, 20% downtime and 7% carbon figures are unchanged (vendor claims, not verified). The site now also links an Operational AI whitepaper and a Georgia Southern University customer story. Re-checked Oct 20, 2026: the homepage and platform menu are unchanged in substance (Willow Copilot, Knowledge Graph, Digital Twin, Activate Packs; partners Microsoft, Carahsoft and HPE; the figures above are vendor claims); the solutions menu lists education, airports and healthcare. Re-checked Oct 22, 2026: homepage unchanged in substance (unifies building data, predicts failures and takes action; Willow Copilot, Knowledge Graph, Digital Twin and Activate Packs; partners Microsoft, Carahsoft and HPE); the platform menu now also lists a Capabilities page (not read). Re-checked Oct 23, 2026: homepage unchanged in substance (Operational AI with Copilot, Knowledge Graph, Digital Twin and Activate Packs; Microsoft, Carahsoft and HPE named as partners). New: the platform menu features an Operational AI whitepaper, the site promotes a Willow and Microsoft webinar on digital twins and AI in healthcare, and a new section contrasts static single-system fault rules with cross-system Skills, Copilot and Active Control responses. Cost-savings figures are vendor claims and not used. Re-checked Oct 24, 2026: homepage unchanged in substance (Operational AI platform with Copilot, buildings ontology, digital twin and data connectors and AI skills; public-sector and partner pages; Georgia Southern University story; Willow and Microsoft healthcare webinar; a post titled Beyond HVAC and Fault Detection to Operational AI, not reviewed). Cost and energy figures are vendor claims and not used. Re-checked Oct 25, 2026: homepage unchanged in substance (Operational AI platform with Copilot, knowledge graph, digital twin and Activate Packs of data connectors and AI skills; Microsoft, Carahsoft and HPE partner pages; education, airport and healthcare solutions; Georgia Southern University story). Cost, energy and carbon figures are vendor claims and not used. Re-checked Oct 26, 2026: homepage unchanged in substance (Operational AI for buildings and infrastructure; Willow Copilot, Knowledge Graph, Digital Twin and Activate Packs; Microsoft, Carahsoft and HPE partner pages; education, airport and healthcare solutions; insights prioritized by cost, energy, comfort and risk). Avoidable-cost examples and energy figures are vendor content and not used. Re-checked Oct 27, 2026: homepage unchanged in substance (Operational AI for buildings and infrastructure; Willow Copilot, Knowledge Graph, Digital Twin and Activate Packs; Microsoft, Carahsoft and HPE partner pages; education, airport and healthcare solutions). Avoidable-cost examples and energy figures are vendor content and not used. Re-checked Oct 28, 2026: the homepage now describes the platform in more operational terms: it connects live conditions with equipment history and system relationships to prioritize issues by cost, energy, comfort and risk; agents run coordinated multi-step workflows and route work orders with supporting context; Active Control adjusts building-system operation within configured limits, with defined permissions, visible actions and operator overrides; teams can ask questions about assets, spaces, live conditions and work history and create custom briefings; and Functional Testing runs within diagnostic and preventive maintenance workflows to track conditions after an intervention. Cost and energy figures remain vendor content and are not used.Siemens-owned asset management suite for CMMS, enterprise asset management, capital planning, energy and predictive monitoring. Products include Asset Essentials, TheWorxHub, Maintenance Manager, Energy Manager, Predictor, Assetic, Confirm, and others, for CMMS, enterprise asset management, capital/asset investment planning, energy and sustainability, and IoT predictive monitoring, with AI for maintenance. Brightly says it was acquired by Siemens in 2022 and "is now Siemens." Re-checked Oct 19, 2026: the Siemens asset management site now lists Origin, which gives AI-powered asset health updates from any CMMS's data to support repair-or-replace and budget decisions, and Event Manager among its products, and describes Maintenance Copilot surfacing instructions, summaries and safety information for technicians; it still says Brightly is now Siemens and adds a food and beverage use case. Predictor is described as AI-based capital planning and lifecycle modeling. Re-checked Oct 20, 2026: the Siemens asset management site is unchanged in substance (Asset Essentials, Assetic, Confirm, Energy Manager, Event Manager, Maintenance Manager, Origin, Predictor and TheWorxHub in the product menu; Maintenance Copilot surfacing instructions, summaries and safety info; still says Brightly was acquired by Siemens in 2022 and is now Siemens). Re-checked Oct 21, 2026: unchanged in substance (AI-powered insights across the asset lifecycle, Maintenance Copilot, IoT remote monitoring and predictive maintenance, capital planning; Asset Essentials, TheWorxHub, Maintenance Manager, Origin, Confirm and Predictor featured; still says Brightly was acquired by Siemens in 2022 and is now Siemens). The homepage's 4.6M users, 250M residents and $321B asset value figures are vendor claims not used here. Re-read Oct 23, 2026 for a compare: the Siemens asset management pages still list Asset Essentials, TheWorxHub, Maintenance Manager, Origin, Confirm and Predictor; the AI for maintenance page describes duplicate work-order detection, AI-prioritised work orders with suggested causes, diagnostic steps and safety notes, auto task summaries and a Technician/Maintenance Copilot chat in Asset Essentials. Re-checked Oct 25, 2026: the Siemens asset management homepage is unchanged in substance (Asset Essentials, TheWorxHub, Maintenance Manager, Origin, Confirm and Predictor featured, with Assetic, Energy Manager and Event Manager in the product menu; Maintenance Copilot surfaces instructions, summaries and safety info; still says Brightly was acquired by Siemens in 2022 and is now Siemens). User, resident, asset-value and organization counts and award badges are vendor content and are not used. Re-checked Oct 27, 2026: Siemens-hosted Brightly homepage unchanged in substance.
Who it's forOwners and facilities teams in higher education, healthcare, retail, aviation, and more.Facilities and infrastructure owners in education, government, healthcare, manufacturing, and senior living.
Pricing (as publicly stated)No public prices found (checked Oct 16, 2026): the vendor site has no pricing or plans link in its navigation or footer, and /pricing and /plans return a not-found page (willowinc.com/pricing still not found Oct 17, 2026). The site's calls to action include "Get a demo". Confirm current pricing with the vendor. Re-checked Oct 19, 2026: unchanged. (/pricing still not found; call to action still Get a demo). Re-checked Oct 20, 2026: still no pricing link in the navigation or footer; call to action still Get a demo. Re-checked Oct 22, 2026: unchanged (/pricing returns a not-found page; Get a demo). Re-checked Oct 23, 2026: unchanged; no public prices (calls to action are Get a demo). Re-checked Oct 24, 2026: unchanged (/pricing returns a not-found page; no public prices). Re-checked Oct 25, 2026: unchanged (/pricing returns a not-found page; no public prices). Re-checked Oct 26, 2026: unchanged (/pricing returns a not-found page; Get a demo; no public prices). Re-checked Oct 27, 2026: unchanged (/pricing returns a not-found page; Get a demo; no public prices). Re-checked Oct 28, 2026: unchanged (/pricing returns a not-found page; Get a demo; no public prices). Re-checked Oct 29, 2026 (read for a compare): unchanged (no pricing link; Get a demo; no public prices).No public prices found (checked Oct 16, 2026): Brightly's site now presents as Siemens asset management software ("Brightly is now Siemens"); there is no pricing or plans link, /pricing redirects to the homepage and /plans returns a not-found page. The site's calls to action include "Book a demo". Confirm current pricing with the vendor. Re-checked Oct 17, 2026: unchanged. Re-checked Oct 19, 2026: unchanged. Re-checked Oct 20, 2026: unchanged (/pricing still lands on the homepage content; Book a demo and Request a Demo; no figures). Re-checked Oct 21, 2026: unchanged (/pricing still lands on the homepage content; Book a demo; the site says it offers a custom solution that fits your needs and budget; no figures). Re-checked Oct 22, 2026: unchanged; no prices on the Siemens-hosted Brightly pages, and /pricing still lands on the homepage. Re-read Oct 23, 2026: still demo-led with no public prices; no change. Re-checked Oct 25, 2026: unchanged; no prices on the Siemens-hosted pages, /pricing still lands on the homepage, and the site offers Book a demo and a custom solution that fits your needs and budget. Re-checked Oct 27, 2026: unchanged; no prices on the Siemens-hosted pages and /pricing still lands on the homepage. Re-checked Oct 28, 2026 (also read for a compare): unchanged (no pricing or plans link; /pricing lands on the homepage; the site says customers can expect a custom solution that fits their needs and budget and offers a tailored demo; no figures).
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Vendor links
Sources

Facts last checked: Willow Oct 29, 2026; Brightly (Siemens) Oct 28, 2026. Prices change; check the vendor page before relying on them.

Where the vendor descriptions differ

  • Not like-for-like: Willow sits above building systems as an AI layer for diagnosing and acting on live conditions; Brightly's products are systems of record for assets, work orders and capital plans. Willow's homepage says its agents route work orders with supporting context; the pages we read do not say which CMMS products it routes to.
  • Data and diagnostics: Willow says it connects live conditions with equipment history and system relationships to investigate causes, anticipate problems and prioritize issues by cost, energy, comfort and risk, built on a buildings ontology, knowledge graph and digital twin. The Siemens site lists asset histories, IoT remote monitoring and predictive maintenance data, and Origin, which gives AI-powered asset health updates from any CMMS's data to support repair-or-replace decisions.
  • Acting on it: Willow describes agents for multi-step workflows and Active Control, which adjusts building-system operation within configured limits, with defined permissions, visible actions and operator overrides; it also lists Functional Testing inside diagnostic and preventive maintenance workflows. Brightly describes Maintenance Copilot surfacing instructions, summaries and safety information for technicians, plus mobile-first work order and preventive maintenance tools.
  • Capital planning: the Siemens site lists AI-driven asset health and capital planning software and a predictive modeling engine that forecasts 5 to 30 year asset conditions and funding needs (Predictor and Assetic are among the products named). Willow's homepage does not describe capital planning.
  • Who it's for: Willow names campuses, airports, healthcare and the public sector. The Siemens portfolio spans facilities CMMS (Asset Essentials, TheWorxHub, Maintenance Manager), local-government infrastructure with GIS mapping, citizen enquiries and field work (Confirm), healthcare and senior living, facility and event scheduling (Event Manager) and energy (Energy Manager).
  • AI tag: Willow is tagged AI-first; Brightly is tagged AI features added to an established product.
  • Pricing (checked Oct 28, 2026): neither publishes prices. Willow's /pricing returns not found and it offers Get a demo; the Siemens site has no pricing link, says customers can expect a custom solution that fits their needs and budget, and offers a tailored demo. See each tool page for detail.
  • Not used here: Willow's cost, downtime, energy and carbon figures and the Siemens site's organization and user counts and customer stories (vendor material). Neither tool has been tested by Means & Methods Lab.

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.

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Questions to ask in your review

  • How Willow's work order routing connects to a CMMS such as Asset Essentials or TheWorxHub
  • What sensor and BMS data each needs before its AI features are useful in an older building
  • What each costs for one building versus a portfolio
  • 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?

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