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LumenStream

LumenStream

Private
BelfastEnergy & Sustainabilityhttps://www.lumenstream.com/

Last Round

VC Round

Jul 8, 2025

Total Funding Raised

$7M

Company Overview

LumenStream is a cleantech company that provides 'Lighting as a Service' to enable businesses to upgrade to energy-efficient LED technology with no upfront capital expenditure.

Sector

Energy & Sustainability

Verticals

Energy Management, Smart Buildings, Facility Management, Green Building

Business Model

B2B

Customer Profile

Hardware + Subscription, Services & Consulting

AI Layer

Non-AI

Keywords

lighting as a serviceLaaSLED lighting upgradeszero CapEx modelenergy as a servicepay as you saveEaaScommercial lightingindustrial lightinglighting subscriptionturnkey lighting projectsenergy savingsclimate techcarbon reductionsmart lighting controlsinfrastructure rectification

Historical Pricing

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Caplight Momentum Score

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LumenStream Comparables

Compare LumenStream with similar companies based on industry and business-model similarity.

LumenStream comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
RCG LightHouse
88%
Airis Energy Solutions
84%
Future Energy Solutions
82%

LumenStream Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
VC RoundJul 8, 2025
SeedOct 21, 2022
DebtMar 8, 2022

Key People

Founding team and executive leadership

Alistair Brown

CEO

Executive Team

LumenStream Investors

Notable investors and investment history

LumenStream investors
InvestorRounds
Aquila CapitalDebt
Clarendon Fund ManagersVC Round
Techstart VenturesVC Round, Seed

Market signals

Structured signals derived from secondary market and firmographic data.

  • Nov 26, 2025

    Added BetterCyber Consulting Group as a customer.

  • Sep 26, 2025

    Added Silcoms Ltd, a manufacturing SMB, as a customer.

LumenStream Filings

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LumenStream filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

Common questions about LumenStream's valuation, stock price, and market status.

Is LUMENSTREAM a public or private company?

LUMENSTREAM is a private company.

What is the current stock price of LUMENSTREAM?

LUMENSTREAM is a private company with no public stock price. No recent secondary market data is available.

How much is LUMENSTREAM worth (valuation)?

Valuation information for LUMENSTREAM is not publicly available.

Can I buy LUMENSTREAM stock?

LUMENSTREAM shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was LUMENSTREAM's last funding round?

LUMENSTREAM's most recent funding round was Early Funding on July 8, 2025.

Who are the main investors in LUMENSTREAM?

Key investors in LUMENSTREAM include Techstart Ventures.

Will LUMENSTREAM IPO soon?

No public IPO plans have been announced for LUMENSTREAM.

How can I track LUMENSTREAM secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor LUMENSTREAM's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersBelfast
Employee Range9
Year Founded2017
Last FundingJul 8, 2025

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