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Centinel

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On a mission to stop climate change by making it easy and profitable for building owners to cut carbon emissions caused by wasted energy

San Francisco, United StatesFounded 2010Energy
Valuation $100–500M Latest valuation · 2019
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Centinel and the history behind them.

About Centinel

Centinel (formerly Carbon Lighthouse), established in 2010 by Brenden Millstein and Raphael Rosen, operates as a property technology company focused on decarbonizing commercial real estate (CRE). The company was founded with the mission to use market forces to combat climate change. The founders, Millstein and Rosen, have guided the company from its initial projects in California and Oregon, securing support from various social innovation fellowships to grow the business. Based in San Francisco, Centinel targets owners and operators of commercial and industrial buildings across sectors including hospitality, life sciences, and medical facilities.

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The firm's business model is centered on an "Energy-Efficiency-as-a-Service" philosophy. It identifies and implements energy efficiency measures by optimizing existing equipment, thereby avoiding large capital expenditures for its clients. Revenue is generated through a performance-based contract where Centinel shares in the energy cost savings realized by its clients, directly tying its income to the effectiveness of its solutions. The company guarantees energy savings valued between $0.40 and $0.60 per square foot, which enhances the net operating income for building owners. An additional revenue stream comes from the sale of Carbon Offset Credits earned from the emission reductions achieved.

At the core of Centinel's service is its proprietary, patented software platform, CLUES®. This platform is a sophisticated analytics and data acquisition tool that analyzes thousands of data points within a building. By deploying hundreds of sensors and integrating with existing Building Management Systems (BMS), CLUES® creates a detailed operational profile of a building's energy consumption, tracking metrics like electrical flow, temperatures, and equipment schedules. This data allows engineers to develop and implement customized plans that optimize systems such as HVAC, heating, and cooling loops for significant energy and cost reductions. The platform provides ongoing monitoring and optimization to ensure sustained performance, making the process of decarbonization profitable and straightforward for property owners.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2010
Headquarters
San Francisco, United States
Employees
28
Open positions
None listed
Dealroom signal
85.0/100
Industry
Energy
Sub-industry
Clean Energy, Waste Solution
Sector
Energy, Real Estate, Commercial Real Estate, Asset Management, Solar Energy, Accommodation, Sustainable Development Goals, Climate Tech, Renewable Energy, Hard Tech
Client focus
b2b

Latest news

Press, funding announcements and product moves mentioning Centinel.

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Funding history

7 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SEEDEquity / VC Oct 2021 Sand Hill Angels · Ulu Ventures · 4G Capital · Unpopular Ventures
OtherOther financing Aug 2020 $0 Undisclosed
Showing the latest 2 of 7 recorded eventsBook a demo for the full funding history →

Growth signals

Centinel website traffic

Latest recorded traffic for Centinel is 1.1K monthly website visits, down 21.4% over the last three months. Centinel's team grew 7.7% over the past year.

Latest monthly visits1.1K 3-month web change-21.4% 1-year team growth+7.7%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

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Showing 8 of the closest matchesCompare every metric →

Investors

21 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed6 investors entered at this stage

  • The Social Entrepreneurs Fund
  • Elemental Excelerator
  • Sand Hill Angels
  • Ulu Ventures
  • 4G Capital
  • Unpopular Ventures

Series B and later5 investors entered at this stage

  • GRC SinoGreen Fund
  • JB Straubel
  • SV Tech Ventures
  • Ulupono Initiative
  • CEAS Investments

Other known investors10 additional known investors

  • Dodge Street Ventures
  • Enjoy The Work
  • For Good Ventures
  • JCI Ventures
  • Johnson Controls
  • Radicle Impact
  • Radicle Impact
  • StartX
  • University Growth Fund
  • Unreasonable Group
Team profiled 16 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
4 countries with
team presence
🇺🇸 United States80%
🇨🇳 China6.7%
🇵🇭 Philippines6.7%
🇨🇦 Canada6.7%
4 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Centinel on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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