Startup profile · funding coverage
Crux funding, valuation and investors
Marketplace and infrastructure for transferable clean-energy tax credits.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Series B
$50M · 2025
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
$68M
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
series b
Investors in latest funding
Other: Andreessen Horowitz
Overview
Crux operates a marketplace and infrastructure layer for transferable clean-energy tax credits under the U.S. Inflation Reduction Act. a16z led an $18.2M Series A in 2024; a $50M Series B in 2025 was led by Lowercarbon Capital with a16z participating. The platform connects credit buyers and sellers with transaction infrastructure.
Why Crux is interesting
IRA-era tax-credit liquidity layer — a16z led A; Lowercarbon led oversubscribed B.
Product & use cases
Marketplace for transferable IRA clean-energy tax credits — liquidity and transaction infrastructure for credit buyers/sellers.
- Corporate buyers acquiring transferable tax credits
- Project developers monetizing credits
- IRA-era credit transaction compliance and settlement
Key facts
- Series B (2025): $50M led by Lowercarbon Capital; a16z participated (Crux blog)
- Series A (2024): $18.2M led by a16z (Crux press)
- Co-investors: Lowercarbon Capital (lead B), Ardent Venture Partners not in VCT directory
- VCT directory co-investors: none mapped (non-directory syndicates noted above); reviewed 2026-07-24
Funding history (newest first)
Investors in our directory
Funds linked from Crux's profile — open a fund page for stage focus and related deal articles.
Competitive landscape
Edge: Crux differentiates through focused product scope and a16z-backed GTM in its category — see competitors for tradeoffs vs. incumbents.
Crux operates in a competitive category where incumbents have distribution but startups win on workflow fit. See named competitors for honest better/worse notes; we do not invent market share.
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Traditional tax equity advisors incumbent
Manual deal-making; Crux software/marketplace approach.
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Reunion adjacent
Climate fintech in overlapping credit/carbon markets.
Notable stories
- Series B (2025): $50M led by Lowercarbon Capital; a16z participated (Crux blog)
- Series A (2024): $18.2M led by a16z (Crux press)
Industries
FAQs about Crux
Practical answers founders, operators, and investors typically search for.
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