Vast: Funding, Investors & Team (Sep 2026)
Vast is a renewable energy company that specializes in creating CSP systems that can produce carbon-free electricity and industrial heat on a large scale. They also help facilitate the production of eco-friendly fuels.
Vast has raised $135M across 3 funding rounds on record, the most recent an undisclosed round of $2.3M announced in Aug 2025.
That round is below the $15M median round size for Energy companies tracked on FundedIQ over the last two years.
Vast Company Profile and Key Stats
Latest funding round on record: Aug 2025.
Vast Funding Rounds
Vast raised $19.5M in an undisclosed round announced in Nov 2024.
4 months later, an undisclosed round of $113M was announced in Mar 2025.
5 months later, an undisclosed round of $2.3M was announced in Aug 2025.
Vast Founders and Leadership Team
Contact details for the Vast team: 1 of 2 have an email address on file.
Start 14-day free trial →Vast Funding Compared to Other Energy Startups
Vast's latest round of $2.3M is below the median round in Energy. Medians cover the last 24 months of disclosed rounds.
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Vast Funding FAQs
What does Vast do?
Vast is a renewable energy company that specializes in creating CSP systems that can produce carbon-free electricity and industrial heat on a large scale. They also help facilitate the production of eco-friendly fuels.
How much funding has Vast raised?
Vast has raised $135M across 3 rounds on record. The most recent is an undisclosed round of $2.3M announced in Aug 2025.
When did Vast last raise funding?
Vast's most recent funding round on record is an undisclosed round of $2.3M, announced in Aug 2025.
Who founded Vast?
FundedIQ lists Renen Hallak (Founder), Simon Song (Founder) at Vast.
Where is Vast headquartered?
Vast is based in Darlinghurst, New South Wales, Australia.
How many employees does Vast have?
Vast is in the 51-100 employee band.
How does Vast's funding compare to other Energy startups?
Vast's latest round of $2.3M is below the $15M median round size for Energy companies on FundedIQ across 2,284 tracked companies over the last two years.
About FundedIQ's Vast Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Vast is left off this page rather than filled in.
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