Blue Line Battery

Beloit, WI · Founded 2015 · Privately Held (backing)

Manufacturer of lithium-ion batteries designed for multiple and varied industrial applications. Blue Line Battery is based in Beloit, WI and was founded in 2015. It was valued at $7.5 million at its seed round in Jan 2025, the last priced event on record. It has raised $8.4 million across 3 recorded rounds; the latest was a $2.6 million seed round in Oct 2024.

PMV mark · valuation
$7.5M
Oct 2026
Priced at
its seed round
Jan 2025
Total raised
$8.4M
Last round
Seed Round
Oct 2024
What is Blue Line Battery worth?
$7.5MPrivateMarketView mark · Oct 2026

Valued at $7.5M at its seed round, Jan 2025. Nothing has traded 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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Blue Line Battery funding history

3 rounds
DateRoundRaisedPost-money
Oct 2024Seed Round$2.6M▮
Nov 2021Seed Round$4.3M▮
Mar 2020Seed Round$1.5M▮
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Blue Line Battery valuation

Blue Line Battery was valued at $7.5 million at its seed round in Jan 2025. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.

How much has Blue Line Battery raised?

Blue Line Battery has raised $8.4 million across 3 recorded rounds since 2020. The largest was a $4.3 million seed round in Nov 2021; the most recent was a $2.6 million seed round in Oct 2024.

Blue Line Battery has filed 5 Form Ds with the SEC since 2020, most recently in Jan 2025 ($2.6 million sold to 12 investors).

How Blue Line Battery'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 Blue Line Battery, 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 its last priced round. Question about this number? Full methodology →

Frequently asked about Blue Line Battery

What is Blue Line Battery worth?
Blue Line Battery is valued at $7.5M as of Oct 2026. Valued at $7.5M at its seed round, Jan 2025. Nothing has traded since.
How much has Blue Line Battery raised?
Blue Line Battery has raised $8.4M in total funding across 3 recorded rounds.
When did Blue Line Battery last raise?
Blue Line Battery last raised in Oct 2024 (Seed Round), raising $2.6M.