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Firefly Energy

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Firefly International Energy Co | Innovation takes Wings!

Peoria, United StatesFounded 2003Energy
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Firefly Energy and the history behind them.

About Firefly Energy

Firefly International Energy Co. specializes in the development and manufacturing of advanced battery technology, originally developed in the R&D laboratories of Caterpillar. The company focuses on producing Microcell Carbon Foam (MCF) batteries, which are designed to offer reliable and efficient power solutions in harsh operating environments and remote locations. These batteries are particularly suited for applications where infrastructure is lacking, such as in remote areas without electricity. Firefly Energy serves a diverse range of clients, including those in heavy equipment, backup energy management, and storage sectors. The company operates in the global energy storage market and generates revenue through the sale of its patented battery technology. Firefly Energy has established a large-scale manufacturing facility in India under a licensing arrangement, allowing it to produce its innovative batteries at a fraction of the cost. The business model revolves around leveraging its proprietary technology and patents to deliver high-performance, maintenance-free batteries that address key market concerns such as grid corrosion and active material shedding.

Source: Dealroom company data

At a glance

Founded
2003
Headquarters
Peoria, United States
Sector
Energy

Investors

5 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A3 investors entered at this stage

  • United Defense Industries
  • Stark Capital Management,LLC
  • Heartland Capital Network

Series B and later2 investors entered at this stage

Team profiled 7 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
1 countries with
team presence
🇮🇳 India100%
1 country shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Firefly Energy on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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