Last Energy
PrivateLast Round
Series C
Dec 16, 2025
Est. Valuation
$15M
Total Funding Raised
$163M
Momentum
Top 10%
of companies Caplight tracks
Company Overview
Last Energy is a clean energy company that develops modular micro nuclear power plants designed to provide rapid, affordable, and scalable baseload power for industrial customers.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Smart Grid
Business Model
B2B
Customer Profile
Revenue Share, Services & Consulting
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Last Energy Comps
Public and private peers based on sector, stage, and business model.
| Company | Status | Est. Valuation | Rev Multiple |
|---|---|---|---|
| OpenAI | Private | $86.0B | ~40x |
| Cohere | Private | $5.0B | -- |
| Competitor 1 | Public | $XX.XB | XXx |
| Competitor 2 | Public | $XX.XB | XXx |
Last Energy Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series C | Dec 16, 2025 | ||||
| Series B | Aug 29, 2024 | ||||
| Series A | Feb 16, 2021 | ||||
| Seed | Feb 25, 2020 |
Key People
Founding team and executive leadership
Last Energy Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Woori Technology Investment Co. | Series C |
| Astera Institute | Series C |
| Floodgate | Seed |
| Galaxy Interactive | Series C |
| Galaxy Digital | Series C |
| JAM Fund | Series C |
| GigaFund | Series C, Series B, Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 1, 2026
Will expand facilities to Texas to build a 5-megawatt pilot reactor.
- Apr 7, 2026
PWR-5 test reactor in Bryan, TX is in startup phase.
Last Energy Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Last Energy's valuation, stock price, and market status.