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XL Batteries

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Develops a technology platform to reduce waste formation

New York City, United StatesFounded 2019Energy
Valuation $0–100M Latest valuation · 2025
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 XL Batteries and the history behind them.

About XL Batteries

XL Batteries is an innovative startup that operates in the energy sector, specifically focusing on energy storage. The company's primary mission is to enhance the efficiency of energy production and usage, thereby reducing waste within the existing energy infrastructure. XL Batteries aims to unlock the potential of renewable energy sources for a sustainable future.

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The company's primary product is an industrial-scale flow battery, designed to store energy for use anywhere, anytime. This is a significant improvement over traditional energy storage methods such as pumped hydroelectricity, which is geographically limiting and makes up 95% of the US's energy storage.

XL Batteries serves a wide range of clients, including energy producers, industrial facilities, and renewable energy companies. The company recently partnered with Stolthaven Terminals to develop its flow battery, indicating a move towards large-scale commercialization.

The business model of XL Batteries revolves around the development, production, and sale of its flow batteries. The company generates revenue through the sale of these batteries to clients who need efficient, flexible energy storage solutions.

Recently, XL Batteries successfully closed a $10M Series Seed II funding round, with participation from Catalus Capital, Xerox Ventures, SIP Global, and founding investors Jeffrey Schwarz, Joel Greenblatt, and Robert Goldstein. This funding will likely be used to further develop and commercialize their technology.

In conclusion, XL Batteries is a promising startup in the energy sector, with a focus on revolutionizing energy storage to support the transition to renewable energy sources.

Source: Dealroom company data

At a glance

Founded
2019
Headquarters
New York City, United States
Sector
Energy

Latest news

Press, funding announcements and product moves mentioning XL Batteries.

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Investors

4 investors on the cap table

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

Seed4 investors entered at this stage

  • US National Science Foundation
  • SIP Global Partners
  • Myriad Venture Partners
  • Catalus Capital
Team profiled 4 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
🇺🇸 United States100%
1 country shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about XL Batteries 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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