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FlexGen logo — Leading Energy Storage Technology Solutions

FlexGen

Leading Energy Storage Technology Solutions

Founded 2009 United States Durham, United States 278 employees Debt Financing Total: $282.50M Energy, Renewable Energy +2

General Information

Company Name FlexGen
Founded Year 2009
Location United States Durham, United States
Employees 278
Industries Energy, Renewable Energy, Semiconductor +1
Funding Stage Debt Financing
Business Model B2B, SaaS, Platform
Revenue Model Service Fee, Subscription, Usage Based
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About FlexGen

FlexGen, founded in 2009, is at the forefront of the renewable energy sector with its slogan, Leading Energy Storage Technology Solutions. Specializing in energy storage technologies, FlexGen prioritizes functionality and software integration in its delivery of integrated energy storage systems. Through its proprietary HybridOS™ energy management platform, the company offers advanced functionality, enabling seamless integration with top-tier energy storage hardware, while remaining hardware agnostic.

Based in the United States, FlexGen operates within key industries such as Energy, Renewable Energy, Semiconductor, and Energy Storage. The company's adaptable approach allows customers to choose between procuring their own hardware or opting for a complete system solution provided by FlexGen. Recently, the firm secured a significant $100.00M Series C investment on July 19, 2022, with participation from Vitol, underscoring investor confidence in its innovative solutions and market potential.

Business keywords: Energy Storage Systems, HybridOS Energy Management, Battery Energy Storage Solutions, Utility-Scale Storage, Lifecycle Services, Energy Trading Platform, System Integration, Remote Monitoring, Lithium Ion Batteries, Energy Transition, Advanced Energy Functionality, Digital Controls, Power Plant Control, Engineering Procurement Construction, Energy Management

Services & Products

Battery Energy Storage Solutions
Energy Management Software Integration
System Planning and Engineering
EMS Retrofit Services
Lifecycle Services
Remote Monitoring and Analytics

Target Customers

Independent Power Producers Energy Developers EPCs Municipalities and Co-ops Utilities Critical Infrastructure Operators

Funding Rounds & Investors (4)

View All
Funding Stage Amount Investors Lead Investors Date
Series C $100.00M 1
Vitol
19 Jul 2022
Series B $150.00M 2
Altira Group Apollo Global Management
Altira Group, Apollo Global Management
25 Aug 2021
Debt Financing $7.00M -
14 Sep 2018
Series A $25.50M 3
Altira Group Caterpillar Ventures
Altira Group, Caterpillar Ventures +1
03 Aug 2015

FlexGen Alternatives & Competitors

View All Alternatives
FlexGen vs
Peak Energy
Peak Energy United States

The Storage Standard for the New Era of Energy

Private Equity
121 employees
Energy, Renewable Energy
FlexGen vs
Teplore
Teplore China

To accelerate the world's transition to sustainable energy

Seed
23 employees
Energy, Sustainability
FlexGen vs
A123 Systems
A123 Systems United States

Worldwide leader in complete lithium-ion energy storage solutions

Post-IPO Equity
586 employees
Energy, Manufacturing
Also compare with: FlexGen vs Planted Planted View all alternatives

FAQ About FlexGen

Leading Energy Storage Technology Solutions
FlexGen was founded in 2009.
FlexGen is headquartered in Durham, United States.
FlexGen operates in Energy, Renewable Energy, Semiconductor and Energy Storage. Its work centres on Energy Storage Systems, HybridOS Energy Management, Battery Energy Storage Solutions and Utility-Scale Storage. Its customers include Independent Power Producers, Energy Developers and EPCs.
FlexGen has a B2B, SaaS and Platform business model. Its revenue comes from Service Fee, Subscription and Usage Based.
FlexGen has approximately 278 employees.
FlexGen has completed 4 funding rounds, raising a total of $282.50M. The latest funding stage is Debt Financing.
FlexGen offers: Battery Energy Storage Solutions, Energy Management Software Integration, System Planning and Engineering, EMS Retrofit Services, Lifecycle Services, Remote Monitoring and Analytics.
Top alternatives and competitors to FlexGen include Peak Energy, Teplore, A123 Systems, Energy Vault, Planted. These companies operate in related industries and serve comparable markets. You can compare them side by side on Bounce Watch.
FlexGen and Peak Energy are both companies in similar industries. Compare their funding, team size, growth signals, and market position on Bounce Watch to see which one fits your needs.

Source: BounceWatch company record for FlexGen, https://bouncewatch.com/company/flexgen, updated 30 March 2026. When citing, please name BounceWatch and link this page.

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