FlexGen - About the company
FlexGen is a series C company, founded in 2009 by Josh Prueher. It operates as a Developer of energy management software and battery storage control systems. FlexGen has raised $276M in funding from investors like General Electric, Altira Group and Caterpillar. The company has 47 active competitors, including 12 funded and 2 that have exited. Its top competitors include companies like Modo Energy, Twaice and Voltaiq.
Company Details
Developer of energy management software and battery storage control systems. This platform provides monitoring, diagnostic, and control capabilities for large-scale energy storage assets. The software integrates with hardware to manage power flow, site performance, and system health. Additional services include site assessments, equipment retrofitting, and technical support for energy infrastructure projects.
- Website
- www.flexgen.com/
- Social
- Email ID
- *****@flexgen.com
- Phone Number
- +1 **********
Key Metrics
Founded Year
2009
Stage
Series C
Total Funding
$276M in 7 rounds
Latest Funding Round
Investors
Ranked
1st among 47 active competitors
Employee Count
287 as on Jun 30, 2026
Investment & Acquisitions
Similar Companies
Legal entities associated with FlexGen
FlexGen is associated with 1 legal entity given below:
Legal Entity Name | Date of Incorporation | Revenue | Latest Employee Count | Documents |
|---|---|---|---|---|
Flexgen Power Systems, Inc. CIN: 6942288 , United States, Active | Jul 19, 2023 | - | - | - |
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FlexGen's funding and investors
FlexGen has raised a total funding of $276M over 7 rounds. Its first funding round was on Jul 30, 2015. Its latest funding round was a Conventional Debt round on Jan 22, 2025 for $*****. 4 investors participated in its latest round. FlexGen has 9 institutional investors.
Here is the list of recent funding rounds of FlexGen:
Filter this list
Filter this listDate of Funding | Funding Amount | Round Name | Post-Money Valuation | Revenue Multiple | Lead Investors | Other Investors |
|---|---|---|---|---|---|---|
Jan 22, 2025 | 3406815 | Conventional Debt | 5061963 | 3020638 | 8160317 | 1236388 |
Jul 20, 2022 | 2732511 | Series C | 6047813 | 5161127 | 1793822 | |
Aug 25, 2021 | 5636023 | Series B | 6386054 | 7718277 |
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FlexGen's founders and board of directors
Founder? Claim ProfileThe founders of FlexGen is Josh Prueher.
Here are the details of FlexGen's key team members:
- Josh Prueher: Founder & CEO of FlexGen.
View details of FlexGen's Founder profiles and Board Members
FlexGen's employee count trend
FlexGen has 287 employees as of Jun 26. Here is FlexGen's employee count trend over the years:
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FlexGen's Competitors and alternates
Top competitors of FlexGen include Modo Energy, Twaice and Voltaiq. Here is the list of Top 10 competitors of FlexGen, ranked by Tracxn score:
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Rank | Company Details | Short Description | Total Funding | Investors | Tracxn Score |
|---|---|---|---|---|---|
1st | FlexGen 2009, Series C | Developer of energy management software and battery storage control systems | $276M | 64/100 | |
2nd |  Modo Energy 2019, Birmingham (United Kingdom), Series B | Platform for battery energy storage analysts | $53.3M | 63/100 | |
3rd | Developer of battery energy storage analytics software for asset management | $71.5M | 62/100 | ||
4th | Voltaiq 2012, Berkeley (United States), Series B | Provider of battery data analytics solutions | $12M | 60/100 | |
5th | ACCURE Battery Intelligence 2020, Aachen (Germany), Series B | Provider of a software company that provides predictive battery analytics solutions to optimize the performance and safety of battery systems in energy storage, electric vehicles, and other industries | $34.5M | 57/100 | |
6th |  Elysia 2010, Wantage (United Kingdom), Unfunded | Provider of battery intelligence solutions enhancing battery life, safety, and performance | - | - | 49/100 |
7th |  Irasus Technologies 2018, Gurugram (India), Seed | Provider of AI-driven battery analytics for electric mobility and energy storage | $621K | 44/100 | |
8th | Provider of battery analytics solutions | $56M | 34/100 | ||
9th |  Furo ( Seed | Developer of software for planning and operating industrial battery storage | $4M | 31/100 | |
10th | Dartboard Energy 2024, San Francisco (United States), Seed | Provider of analytics platform for grid-scale battery | $500K | 29/100 |
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FlexGen's Investments and acquisitions
FlexGen has acquired CES. FlexGen has not made any investments as of now.Reports related to FlexGen
Here is the latest report on FlexGen's sector:
News related to FlexGen
Filter this listMedia has covered FlexGen for a total of 13 events in the last 1 year, 8 of them have been about company updates.
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FlexGen and Eos Energy Enterprises Enter European Market with First DealsEnergy-Storage•Jun 19, 2026•FlexGen
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FlexGen Launches International Operations in Europe for Battery Storage SolutionsBusiness Wire•Jun 17, 2026•FlexGen
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FlexGen Acquires Clean Energy Services to Expand Battery Storage and Solar ServicesPulse 2.0•Jun 01, 2026•FlexGen
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FlexGen buys battery storage services firm CES Renewables Now•Apr 03, 2026•FlexGen, Customized Energy Solutions, CES
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Peter Lee Leads $300 Million Round In U.S. Battery Startup EnerVenueBitcoin Ethereum News•Mar 31, 2026•EnerVenue, Hong Kong Investment Corporation Limited, Full Vision Capital, FlexGen and 1 other
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FlexGen Announces Latest HybridOS® Energy Management System Built to Maximize Site PerformanceBusiness Wire•Feb 19, 2026•FlexGen
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FlexGen begins operating 700MWh BESS for Alliant EnergyEnergy-Storage•Feb 09, 2026•FlexGen, Alliant Energy
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FlexGen Expands into Solar Market with New FlexGen HybridOS® Control FunctionalityBusiness Wire•Sep 03, 2025•FlexGen
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