Lumen Energy

San Francisco, CA · Founded 2019 · Privately Held (backing)

Operator of a clean energy platform designed to empower commercial real estate owners to profit from solar and batteries. Lumen Energy is based in San Francisco, CA and was founded in 2019. Its last reported valuation was $18.6 million in May 2021. It has raised $18.3 million across 4 recorded rounds; the latest was a $700,000 seed round in Feb 2026.

Last reported valuation
$18.6M
Oct 2026
Priced at
—
Total raised
$18.3M
Last round
Seed Round
Feb 2026
What is Lumen Energy worth?
$18.6Mlast reported valuation · Oct 2026

Lumen Energy's last reported valuation, May 2021. Nothing priced has surfaced since.

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Valuation timeline

0 priced rounds · 32 daily marks since · Sep 2026 – Oct 2026
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Markrounds hold their value until the next priced eventMark, today
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Lumen Energy funding history

4 rounds
DateRoundRaisedPost-money
Feb 2026Seed Round$700K▮
May 2025Seed Round$2.3M▮
Feb 2023Early Stage VC$10.7M▮
Apr 2021Seed Round$4.5M▮
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Lumen Energy valuation

Lumen Energy's last reported valuation was $18.6 million in May 2021. No priced round, secondary trade or fund mark has surfaced since.

How much has Lumen Energy raised?

Lumen Energy has raised $18.3 million across 4 recorded rounds since 2021. The largest was a $700,000 seed round in Feb 2026.

Lumen Energy has filed 3 Form Ds with the SEC since 2021, most recently in Aug 2025 ($2.3 million sold to 15 investors).

How Lumen Energy's valuation is determined

Private company valuations aren’t quoted on an exchange — they’re established in moments: a priced funding round sets a post-money valuation, secondary trades print at a price per share, and SEC-registered funds holding the stock report fair-value marks in their N-PORT filings.

For Lumen Energy, the most current credible signal sets the number and the older ones confirm it: a live secondary-market price first, then three or more recent prints, then institutional fund marks, and otherwise the last priced round, which never decays. The valuation is the last round’s post-money moved by the price change since that round, so no share count is assumed. Today it is set by last reported valuation. Question about this number? Full methodology →

Frequently asked about Lumen Energy

What is Lumen Energy worth?
Lumen Energy is valued at $18.6M as of Oct 2026. Lumen Energy's last reported valuation, May 2021. Nothing priced has surfaced since.
How much has Lumen Energy raised?
Lumen Energy has raised $18.3M in total funding across 4 recorded rounds.
When did Lumen Energy last raise?
Lumen Energy last raised in Feb 2026 (Seed Round), raising $700K.