Burlingame, CA
San Francisco, US · 10 known investors
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Butlr makes anonymous thermal sensors that measure occupancy and space utilization across offices, buildings, campuses, stores, and labs without cameras, badges, or Wi-Fi tracking. Its API-first platform integrates with building management, workplace, and analytics systems to inform space planning, energy usage, and cleaning schedules for corporate real estate teams.
Also known as Butlr
Founders & leadership
Board
Investors · 10
Funding
SEC filings, press & company announcements- Undisclosed amountSeries AAug 2025Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Butlr operates a sensing platform built on anonymous thermal occupancy sensors paired with an open API. The company states its sensors are camera-free and physically unable to capture faces, identities, or personally identifiable information, positioning privacy as a property of the hardware. The sensors are wireless and described as installing without cabling or construction, which the company presents as suited to retrofits, phased deployments, and multi-building rollouts.
The same sensor and API stack underpins three distinct solution lines. Workplace applies anonymous occupancy data to space planning, energy use, operations, and employee experience, with stated uses including repurposing office space and smart cleaning schedules. Care provides around-the-clock, camera-free ambient monitoring that gives care teams early warning of changes in resident activity without cameras or wearables. Data Center provides continuous thermal monitoring across the power path to detect overheating connections between periodic thermal scans. The platform is described as scaling from a single floor to a global real estate portfolio.
Business model
Butlr sells a hardware-plus-software platform: thermal occupancy sensors deployed in customer spaces, with data and alerts delivered through an open API and solution-specific applications. It engages buyers directly via demo requests across categories including workplace, higher education, laboratories, and senior living, and also works through technology and channel partners who integrate Butlr data into their own products.
Latest developments
In March 2026 Butlr announced a partnership with Disruptive Technologies for privacy-first building intelligence. In July 2026 it launched smart cleaning technology for commercial offices. During 2026 it also published research on office costs and space utilization data, including findings that four out of five commercial real estate and workplace executives lack the data needed to lower office costs.
▸Full profile — market position, technology, go-to-market, geography
Market position
Butlr positions itself as a privacy-first alternative to camera-, badge-, and Wi-Fi-based occupancy measurement, describing customers and partners worldwide. Partner statements characterize its thermal approach as more reliable, scalable, and accurate than alternatives they have evaluated.
Hardware-level anonymity (no cameras, no capture of identities or PII), wireless installation without cabling or construction for retrofit and multi-site rollouts, and a single sensing platform with an open API that flexes across workplace, care, and data center use cases.
Technology
Anonymous thermal occupancy sensing. The sensors are camera-free and, per the company, physically incapable of capturing faces or personally identifiable information. They are wireless, requiring no cabling or construction to install. Data and alerts are exposed through an open API that partners and customers pull into their own software; the same sensing platform supports occupancy analytics, ambient activity monitoring in care settings, and continuous thermal monitoring of data center power-path connections.
Go-to-market
Direct enterprise sales driven by demo requests segmented by product interest (workplace, higher education, laboratories, senior living), combined with partnerships in which vendors embed Butlr occupancy data via its API. Marketing includes published research and reports such as "Beyond Occupancy: The State of Office Space 2026" and articles on office cost and space utilization data.
Corporate real estate and workplace teams, higher education institutions, laboratories, senior living and care providers, and data center operators. Named customer and partner references include Snowflake, Georgia-Pacific's GP PRO (KOLO system), Lendlease Podium, Notify Nurse Call, and 9Solutions.
Geography
The company describes customers and partners worldwide and a platform that scales to global real estate portfolios; its demo request form covers a global list of countries and regions.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Founder mafia
2 people who came through Burlingame, CA went on to found or lead other companies.
Timeline · 3
launches, deals, and filingsButlr announced smart cleaning technology for commercial office environments.
Butlr and Disruptive Technologies announced a partnership to deliver privacy-first building intelligence.
Butlr offers a Data Center solution providing continuous, camera-free thermal monitoring across the power path to detect overheating connections.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 1
primary sources listed
- Burlingame, CAbutlr.com · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Burlingame, CA do?
- Butlr sells camera-free thermal occupancy sensors and an open API for workplace, senior care, and data center monitoring.
- Who founded Burlingame, CA?
- Burlingame, CA was founded by Honghao Deng, Jiani Zeng.
- Who are Burlingame, CA's investors?
- Burlingame, CA's investors include 500 Global, Foundry, GS Futures, HDS Capital, Open Network Lab, Qualcomm Ventures, Taiwan Global Angels, Tectonic Ventures and 2 more.
- Where is Burlingame, CA headquartered?
- Burlingame, CA is headquartered in San Francisco, US.