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LumenStream secures £1.2M investment led by a local angel investment syndicate to scale its lighting as a service model.

PRIVATEJul 08, 2025•11 months ago

Amount Raised

£1.2 Million

BelfastEnergyRenewable Energy

Investors

Techstart VenturesClarendon Fund ManagersCo Fund IiiLocal Angel Investment Syndicate

Description

LumenStream, a climatetech company, secured £1.2M in investment to expand its zero-upfront-cost smart lighting solutions. The funding round was led by a local angel investment syndicate with support from Co Fund III and Techstart Ventures. This funding will help high-energy users cut CO2 emissions and reduce costs. CEO Alistair Brown highlighted the investment as pivotal for expanding their mission in green innovation.

Company Information

Company

LumenStream

Location

Belfast, Northern Ireland, United Kingdom

About

LumenStream is a climatetech company that revolutionizes energy efficiency through its innovative 'Lighting as a Service' model. The company allows businesses to adopt energy-efficient lighting solutions with no upfront costs, enabling immediate positive cash flow while cutting CO2 emissions. With significant customers like Siemens and Oxfam, LumenStream is committed to driving sustainability and economic impact.

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VC-backed spending patterns
VC-backed companies spend 89% more on sales and 100% more on marketing than bootstrapped peers

Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals — including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications — based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 200,000+ companies.

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