Company overview

FlexGen delivers the best integrated energy storage systems by taking a functionality and software-first approach. We fundamentally turn battery energy storage systems on, deliver advanced functionality through the HybridOSTM energy management system platform, and integrate with the best energy storage hardware systems available. We are hardware agnostic and have flexible approaches to delivering systems that empower our customers to procure hardware or FlexGen to provide hardware as part of a complete system solution.
Founded in 2009
Durham, North Carolina, USA
267 employees (9 in marketing)
66% recommend to a friend
63% positive business outlook

Salaries

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People

Hiring activity

Open marketing jobs over time

1 open now

Headcount trend

Company growth over the last 12 months

Headcount +22.9% year over year

Funding

Total funding

$357.5M

Last raise

$75M

Debt Financing, 1 years ago

Funding history

Jan 2025

Debt Financing FlexGen · $75M

Jul 2022

Series C FlexGen · $100M

Aug 2021

Series B FlexGen · $150M

Sep 2018

Debt Financing FlexGen · $7M

Aug 2015

Series A FlexGen · $25.5M

Audience

Monthly website visitors
10.7K
Month over month+10.7%
Quarter over quarter+10.5%
Top sourceDirect (50.6%)
Ad budget per month$0.0
Average search rank37.1
Traffic source mix
Direct
50.6%
Search
35.4%
Referral
6.6%
Social
5.8%
Paid referral
1.4%

LinkedIn followers

Follower count and growth

Total followers

24.2K

12-mo growth

+22.2%

Monthly growth

+3%

News

Links