Spar Systems

Montvale, NJ · Privately Held (backing)

Manufacturer of thermal energy conversion technology intended to generate electricity from ultra-low temperature heat. Spar Systems is based in Montvale, NJ. It was valued at $8.8 million at its seed round in Dec 2024, the last priced event on record. It has raised $1.1 million across 2 recorded rounds; the latest was a $545,000 seed round in Dec 2024.

PMV mark · valuation
$8.8M
Oct 2026
Priced at
its seed round
Dec 2024
Total raised
$1.1M
Last round
Seed Round
Dec 2024
How much has Spar Systems raised?
$1.1Macross 2 recorded rounds · Aug 2022 – Dec 2024

Most recently, Spar Systems raised $545K in its Seed Round (Dec 2024).

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Spar Systems round by round

2 rounds
Dec 2024Seed Round$545KSEC filing▮
10 investors participated
Aug 2022Seed Round$516KSEC filing▮
14 investors participated

How much has Spar Systems raised?

Spar Systems has raised $1.1 million across 2 recorded rounds since 2022. The largest was a $545,000 seed round in Dec 2024.

Spar Systems has filed 4 Form Ds with the SEC since 2022, most recently in Dec 2025 ($545,000 sold to 10 investors).

Spar Systems investors

2 investors are on record for Spar Systems, including Deep Future and Cleantech Open. The seed round in Dec 2024 drew 10 investors.

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2 investors have backed Spar Systems.

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Frequently asked about Spar Systems

How much has Spar Systems raised?
Spar Systems has raised $1.1M in total across 2 recorded funding rounds.
When was Spar Systems's last funding round?
Spar Systems's most recent recorded round was Seed Round in Dec 2024, raising $545K.