Fundraising Fox
Lumenstream
2 known investors
Find your way into Lumenstream
Sign up to see every warm intro you have to Lumenstream
- Paths you didn't know you had: your email and LinkedIn already hold routes to the Lumenstream team. We find them for you
- 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
- Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone
Days of research, done the moment you sign in, with every route ranked by how warm it is.
LumenStream provides fully managed energy efficiency services that combine financing, installation, and ongoing support for businesses seeking to modernize infrastructure while reducing carbon footprint and operational costs.
Investors · 2
Funding
SEC filings, press & company announcements- Undisclosed amountseedOct 2022
Techstart Ventures (lead)
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Companies House · registry record
View on Companies House ↗- Registered name
- LUMENSTREAM LTD
- Company number
- NI647208
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 Aug 2017
- Registered office
- 285a Ormeau Road, Belfast, Co Antrim, BT7 3GG
- Nature of business (SIC)
- 27400 — Manufacture of electric lighting equipment46180 — Agents specialized in the sale of other particular products
- Previous names
- PROVEN LIGHTING LIMITED (2017–2021)
- Accounts
- last made up to 30 Jun 2025 · next due 31 Mar 2027
- Confirmation statement
- last made up to 22 Sept 2025 · next due 6 Oct 2026
Current officers · 1
- Alistair Thomas Brown — director, appointed 1 Aug 2017
Source: Companies House public register · retrieved 9 Aug 2026. Contains public sector information licensed under the Open Government Licence v3.0.
Frequently asked questions
- What does Lumenstream do?
- LumenStream provides fully managed energy efficiency services that combine financing, installation, and ongoing support for businesses seeking to modernize infrastructure while reducing carbon footprint and operational costs.
- Who are Lumenstream's investors?
- Lumenstream's investors include Clarendon Fund Managers Ltd., Techstart Ventures.