Fundraising Fox

Butlr

Burlingame, US · Founded 2019 · 94 employees on LinkedIn · 13 known investors

Find your way into Butlr

726 people in our graph share verified history with the Butlr team — schools, employers, funds. One of them is your warm intro.

Ken Chenaultunlockedknows Honghao Deng · together at Airbnb (overlapped)
×6knows the team · via Airbnb
×4knows the team · via MongoDB
knows the team · via MIT Media Lab

Butlr Care uses ceiling-mounted thermal sensors to monitor seniors and detect events like falls or changes in gait and activity without cameras or wearables, sending alerts and behavioral insights to care staff via an API. It serves senior care providers and caregivers with anonymous, privacy-focused occupancy and health monitoring.

Also known as Butlr Technologies

Founders & leadership

Butlr was founded in 2019 by Honghao Deng and Jiani Zeng.

HDHonghao Deng
Honghao DenginChief Executive Officer, Co-founderHonghao Deng is co-founder and CEO of Butlr, which uses ceiling-mounted thermal sensors to provide privacy-focused occupancy and senior health monitoring. He holds a Master of Design Technology from Harvard GSD and previously worked as a researcher with the City Science Group at the MIT Media Lab.
JZJiani Zeng
Jiani ZenginCo-founder, Chief Product OfficerJiani Zeng is a designer, researcher, and founder of Butlr whose work spans digital and physical materials, products, and spaces, using emerging technologies such as AIoT, soft robotics, and multi-material 3D printing. At Butlr she works on ceiling-mounted thermal sensing that monitors seniors and detects events like falls and changes in activity for care providers without cameras or wearables.

Board

RS
Raymond Stuart StataBoard director
SL
Seth LevineBoard director
NP
Naimish PatelBoard director

Investors · 13

Reported raises · per SEC filings

Form D private placements

$53M disclosed across 3 of 4 rounds · 2021–2024

$7.3MraisedMay 2025 · 9 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Seth LevineDirector
  • Honghao DengExecutive Officer, Director
  • Raymond Stuart StataDirector
Offering amount
$9.3M
Amount sold
$7.3M
First sale
Dec 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$38.2MraisedAug 2024 · 37 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Raymond Stuart StataDirector
  • Seth LevineDirector
  • Honghao DengExecutive Officer, Director
Offering amount
$38.2M
Amount sold
$38.2M
First sale
Aug 2024
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$7.4MraisedMay 2021 · 33 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Honghao DengExecutive Officer, Director
  • Naimish PatelDirector
Offering amount
$7.9M
Amount sold
$7.4M
First sale
Apr 2021
Incorporated
Corporation, Delaware, 2019
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Company profile

researched Aug 2026

Butlr operates a sensing platform built around wireless, camera-free thermal occupancy sensors and an open API. The company packages the same underlying hardware and data platform into three solutions: Workplace, which converts anonymous occupancy data into decisions about space, energy, operations, and employee experience; Care, which gives care teams continuous, camera-free and wearable-free monitoring intended to flag changes in resident activity while preserving dignity; and Data Center, which applies continuous thermal monitoring across the power path to detect overheating connections between periodic thermal scans.

The company positions the sensors as anonymous by design, stating they are physically incapable of capturing faces, identities, or personally identifiable information. The sensors are wireless and are described as installing without cabling or construction, targeting retrofits, phased deployments, and multi-building rollouts. Butlr also publishes research and reports on office space and utilization topics, including a "Beyond Occupancy: The State of Office Space 2026" report and commentary on the relationship between office costs, space utilization data, and workforce productivity.

Business model

Butlr provides sensor hardware combined with a data platform and open API, sold to enterprises and delivered through both direct engagement (demo requests for products and services) and partner integrations that pull Butlr data and alerts into third-party software.

Traction

Publicly named customers and partners include Snowflake, Georgia Pacific's GP PRO, Lendlease Podium, Notify Nurse Call, and 9Solutions, with Snowflake describing use of the data for space repurposing and smart cleaning schedules and Lendlease Podium relying on Butlr for space occupancy metrics in its Podium Property Insights offering.

Latest developments

In March 2026 Butlr announced a partnership with Disruptive Technologies for privacy-first building intelligence, and in July 2026 it launched smart cleaning technology for commercial offices. During 2026 the company 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 markets itself as an AI platform for intelligent spaces spanning workplace, care, and data center sensing, differentiating on hardware-level anonymity versus camera-based and wearable alternatives. Partners cite its thermal approach as more reliable, scalable, and accurate than other technologies they have evaluated.

Privacy is presented as a property of the hardware rather than a software policy, since the thermal sensors cannot record images or identities. Additional stated differentiators are rapid wireless installation without construction and a platform that scales from a single floor to a global real estate portfolio while supporting multiple use cases through one sensor and API.

Technology

Ceiling-deployable thermal occupancy sensors that detect people and heat signatures without cameras, paired with a platform and open API. The sensors are wireless, require no cabling or construction to install, and by design cannot capture faces or personally identifiable information. In the data center use case the same thermal sensing is applied continuously to power-path connections to detect overheating.

Go-to-market

Direct enterprise sales via demo requests, supported by content such as occupancy and office-cost research reports, alongside channel and technology partnerships with building, nurse call, and facility management vendors including Georgia Pacific's GP PRO (KOLO system), Lendlease Podium, Notify Nurse Call, 9Solutions, and Disruptive Technologies.

Enterprise workplace and corporate real estate teams, higher education institutions, laboratories, senior living and care providers, data center operators, and technology partners integrating occupancy data into their own products.

Geography

The company states it serves customers and partners worldwide, with its contact form covering a global list of countries and regions; named references include US-based Snowflake and Georgia Pacific, Australia-linked Lendlease Podium, and Finland-based 9Solutions.

Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.

Founder mafia

3 people who came through Butlr went on to found or lead other companies.

Competitors · 1

by search overlap

Companies competing with Butlr for the same Google search keywords, organic and paid, via search-intersection analysis.

Timeline · 2

launches, deals, and filings
Jul 2026
Butlr launches smart cleaning technology for commercial offices

Butlr announced smart cleaning technology aimed at commercial office environments.

source ↗

Mar 2026
Partnership with Disruptive Technologies

Butlr and Disruptive Technologies announced a partnership to deliver privacy-first building intelligence.

source ↗

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

1 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Butlr do?
Butlr sells camera-free thermal occupancy sensors and an API platform for workplace, senior care, and data center monitoring.
Who founded Butlr?
Butlr was founded by Honghao Deng, Jiani Zeng in 2019.
Who are Butlr's investors?
Butlr's investors include 1Flourish Capital, Founder Collective, Foundry, Hyperplane Venture Capital, Open Network Lab, Particle, Primetime Partners, SAV (Scale Asia Ventures) and 5 more.
How much funding has Butlr raised?
Butlr has disclosed $53M raised across 3 of its 4 known rounds.
Where is Butlr headquartered?
Butlr is headquartered in Burlingame, US.