Insights

Sustainability Opportunity ReJoule focuses on battery health diagnostics to improve lifecycle management and repurposing used lithium-ion cells, presenting a sales angle for forward-looking recycling and second-life programs with utilities, fleet operators, and EV manufacturers.

DOE and Grants Significant government funding and grants have supported ReJoule’s growth, indicating opportunities to engage with public sector programs, energy resilience initiatives, and DOE-aligned partners seeking battery testing and validation capabilities.

EV and Storage Upside With applications in electric vehicle testing technology and battery health data extraction, there is potential to cross-sell into EV OEMs, battery manufacturers, and energy storage system integrators looking to optimize performance and lifecycle costs.

Prototype to Scale Recent launches of next-generation battery module testers and prototypes signal readiness for pilots or early-adopter projects with customers requiring advanced diagnostics, quality assurance, and rapid iteration in manufacturing lines.

Strategic Partnerships Current funding and project work around solar grids and workforce training suggest opportunities to partner with utilities, solar developers, and training sites that can incorporate ReJoule’s diagnostics tech into broader clean-energy programs.

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ReJoule Tech Stack

ReJoule uses 8 technology products and services including MATLAB, HubSpot Analytics, AutoCAD, and more. Explore ReJoule's tech stack below.

Media & News

ReJoule's Email Address Formats

ReJoule uses at least 2 email formats:
ReJoule Email FormatsExamplePercentage
FLast@rejouleenergy.comJDoe@rejouleenergy.com
80%
First@rejouleenergy.comJohn@rejouleenergy.com
20%

Frequently Asked Questions

What is ReJoule's official website and social media links?

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ReJoule's official website is rejouleenergy.com and has social profiles on LinkedIn and Crunchbase.

How much revenue does ReJoule generate?

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As of August 2026, ReJoule's annual revenue is estimated to be $1M - $10M.

What is ReJoule's NAICS code?

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ReJoule's NAICS code is 335 - Electrical Equipment, Appliance, and Component Manufacturing.

How many employees does ReJoule have currently?

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As of August 2026, ReJoule has approximately 16 employees across 3 continents, including North America, Asia and Europe. Key team members include Trading Manager: J. S. and Board Advisor: N. B. Explore ReJoule's employee directory with LeadIQ.

What industry does ReJoule belong to?

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ReJoule operates in the Appliances, Electrical, and Electronics Manufacturing industry.

What technology does ReJoule use?

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ReJoule's tech stack includes MATLAB, HubSpot Analytics, AutoCAD, SOLIDWORKS, Squarespace, WordPress, Squarespace Commerce and Google Workspace.

What is ReJoule's email format?

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ReJoule's email format typically follows the pattern of FLast@rejouleenergy.com. Find more ReJoule email formats with LeadIQ.

How much funding has ReJoule raised to date?

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As of August 2026, ReJoule has raised $22M in funding. The last funding round occurred on Oct 31, 2024 for $6.3M.

When was ReJoule founded?

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ReJoule was founded in 2017.
ReJoule logo

ReJoule

Appliances, Electrical, and Electronics ManufacturingCalifornia, United States11-50 Employees

ReJoule, based in Signal Hill, California, operates in the appliances, electrical, and electronics manufacturing sector with a focus on battery diagnostics. The company aims to extract health data from lithium-ion batteries that is typically accessible only in laboratory settings, enabling more efficient design and lifecycle management for electric vehicles and battery energy storage systems. Its work supports customers seeking to maximize battery value and streamline end-to-end battery life cycles, addressing the growing need for sustainable battery waste management and improved reuse of used cells. ReJoule positions itself at the intersection of diagnostics and energy storage, offering data-driven insights that can influence how batteries are tested, graded, and repurposed. The organization appears to operate with a relatively small, specialized team, reflecting its niche focus within the broader clean energy and electronics manufacturing landscape. A notable recent development includes recognition for its electric vehicle testing technology, highlighting ongoing progress in its test and evaluation capabilities.

Section iconCompany Overview

NAICS Code
335 - Electrical Equipment, Appliance, and Component Manufacturing
Founded
2017
Employees
11-50

Section iconFunding & Financials

  • $22M

    ReJoule has raised a total of $22M of funding over 11 rounds. Their latest funding round was raised on Oct 31, 2024 in the amount of $6.3M as a Grant.

  • $1M - $10M

    ReJoule's revenue is estimated to be in the range of $1M - $10M

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