FlexGen Power Systems
PrivateLast Round
Debt
Jan 22, 2025
Total Funding Raised
$350.5M
Momentum
Top 10%
of companies Caplight tracks
Company Overview
FlexGen Power Systems operates in Energy & Sustainability and is based in Durham, North Carolina. Its latest recorded funding round was a Debt round in January 2025.
FlexGen Power Systems is an energy technology company that provides software and services for deploying, managing, and optimizing battery energy storage systems for utilities, industrial sectors, and government agencies.
Sector
Energy & Sustainability
Verticals
Energy Storage, Energy Management, Smart Grid, Renewable Energy
Business Model
B2B
Customer Profile
Hardware Sales, Subscription SaaS, Services & Consulting
AI Layer
Application
Historical Pricing
Historical view of private secondary pricing and transaction trends.
FlexGen Power Systems Comparables
Compare FlexGen Power Systems with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Powin | 89% | |
| On.Energy | 88% | |
| Fluence Energy, Inc. | 83% |
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FlexGen Power Systems Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Debt | Jan 22, 2025 | ||||
| Series C | Jul 19, 2022 | ||||
| Series B | Aug 25, 2021 | ||||
| Series A | Aug 3, 2015 |
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Key People
Founding team and executive leadership
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FlexGen Power Systems Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Altira Group | Series C, Series B, Series A |
| Santander | Debt |
| BNP Paribas | Debt |
| JPMorgan Chase & Co. | Debt |
| Apollo Global Management | Series B |
| GE Ventures | Series A, Series B |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 26, 2026
Monthly visitors increased 55% MoM.
- Apr 3, 2026
Managing 8 GWh of energy storage systems with HybridOS software.
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Recent news
Latest coverage and updates
- integrates_withNov 11, 2026
On Nov 11th '26, FlexGen Power Systems, Inc. plans to integrate Eos Z3 zinc storage at MN8 Energy, Inc.'s Mammoth Solar project in West Virginia, where HybridOS coordinates it with lithium-ion batteries and solar as one dispatchable resource.
- signs_new_clientSep 16, 2026
On Sep 16th '26, Lightshift selects FlexGen Power Systems, Inc.'s HybridOS energy management system for additional projects as the companies expand their partnership across 16 battery energy storage projects in Massachusetts, Virginia, and Vermont.
- expands_facilitiesSep 11, 2026
FlexGen Power Systems, Inc. and SMT Energy start operations at the SMT Houston IV 160 MW/320 MWh energy storage facility in Houston, Texas, supporting the ERCOT grid.
- partners_withSep 10, 2026
FlexGen Power Systems, Inc. partners with SMT Energy, LLC to deploy the SMT Houston IV project in Texas, which delivers critical services to the ERCOT power grid.
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FlexGen Power Systems 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.
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Frequently Asked Questions
Common questions about FlexGen Power Systems's valuation, stock price, and market status.
Is FlexGen Power Systems a public or private company?
FlexGen Power Systems is a private company.
What is the current stock price of FlexGen Power Systems?
FlexGen Power Systems is a private company, so its shares have no public market price. Caplight tracks FlexGen Power Systems's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is FlexGen Power Systems worth (valuation)?
Valuation information for FlexGen Power Systems is not publicly available.
Can I buy FlexGen Power Systems stock?
FlexGen Power Systems shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was FlexGen Power Systems's last funding round?
FlexGen Power Systems's most recent funding round was Debt on January 22, 2025.
Who are the main investors in FlexGen Power Systems?
Key investors in FlexGen Power Systems include Altira Group, JPMorgan Chase & Co., Apollo Global Management.
Will FlexGen Power Systems IPO soon?
No public IPO plans have been announced for FlexGen Power Systems.
How can I track FlexGen Power Systems secondary market activity?
Caplight tracks bids, offers, and trades in FlexGen Power Systems's shares on secondary markets.