Inertia Enterprises
PrivateLast Round
Series A
Feb 11, 2026
Total Funding Raised
$450M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Inertia Enterprises is a fusion energy company commercializing laser-based inertial confinement fusion technology to deliver grid-scale clean energy.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Clean Manufacturing
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Inertia Enterprises Comparables
Compare Inertia Enterprises with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Longview Fusion Energy Systems | 91% | |
| Focused Energy | 87% | |
| Blue Laser Fusion | 87% |
Inertia Enterprises Funding Rounds
Historical fundraising activity
Key People
Founding team and executive leadership
Inertia Enterprises Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Uncork Capital | Series A |
| Neo | Series A |
| Threshold Ventures | Series A |
| GV | Series A |
| Modern Capital | Series A |
| Long Journey Ventures | Series A |
| WndrCo | Series A |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 26, 2026
Grew 59% QoQ, from 41 to 65 employees.
- Jul 23, 2026
Grew 118% QoQ, from 28 to 61 employees.
Recent news
Latest coverage and updates
- attends_eventSep 18, 2026
Inertia co-founder and CEO Jeff Lawson joins the Smart Systems Stage at TechCrunch Disrupt 2026 in California on Oct 13th-15th '26 to discuss his transition from Twilio to fusion power.
Inertia Enterprises Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Request accessFrequently Asked Questions
Common questions about Inertia Enterprises's valuation, stock price, and market status.
Is Inertia Enterprises a public or private company?
Inertia Enterprises is a private company.
What is the current stock price of Inertia Enterprises?
Inertia Enterprises is a private company, so its shares have no public market price. Caplight tracks Inertia Enterprises's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Inertia Enterprises worth (valuation)?
Valuation information for Inertia Enterprises is not publicly available.
Can I buy Inertia Enterprises stock?
Inertia Enterprises shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Inertia Enterprises's last funding round?
Inertia Enterprises's most recent funding round was Series A on February 11, 2026.
Who are the main investors in Inertia Enterprises?
Key investors in Inertia Enterprises include Bessemer Venture Partners.
Will Inertia Enterprises IPO soon?
No public IPO plans have been announced for Inertia Enterprises.
How can I track Inertia Enterprises secondary market activity?
Caplight tracks bids, offers, and trades in Inertia Enterprises's shares on secondary markets.