Key facts
- Lumenstream’s last known valuation is $5.8M (Apr 2025).
- It has raised $8.8M; the latest was Later Stage VC ($1.6M) in Apr 2025.
- Notable investors include Techstart Ventures, Clarendon Fund Managers, Aquila Capital, Jonny Barr, Sian McLaughlin.
- Status: Privately Held (backing).
- ·The complete investor list — 5 names
- ·Watchlist + deal alerts for Lumenstream
- ·The full record, as it builds
Funding rounds
No funding rounds for Lumenstream are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Lumenstream
Operator of a cleantech company intended to enable the rapid deployment of energy-efficient LED technology at scale and reduce carbon dioxide emissions. The company focuses on energy efficiency to make significant carbon savings simply by changing their industrial lighting to LED technology, enabling businesses to switch to sustainable technology without risk and keep a check on their emission levels.
- Sector
- Business Products and Services (B2B)
- HQ
- Belfast, United Kingdom
- Founded
- 2018
- Employees
- 9
- Website
- lumenstream.com/
- Ownership
- Privately Held (backing)
Lumenstream doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Lumenstream shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Lumenstream in its N-PORT filings yet. We sweep new filings monthly.