Insights

Strategic funding momentum ReJoule has secured multiple rounds of substantial funding from government and private channels, including a $6.3M DOE grant and a $10M DOE grant over seven years. This indicates strong validation of their battery diagnostics and grid/education initiatives, suggesting a sales window for complementary technologies, services, or deployment partnerships aligned with funded projects.

Battery diagnostics leadership The company focuses on extracting health data from batteries that previously required lab environments, enabling more efficient EV and storage system design and lifecycle management. This positions ReJoule as a potential partner or acquirer of advanced diagnostics or data analytics tools, and a prospect for suppliers of compatible hardware, data platforms, or integration services.

Early revenue traction Current revenue is modest but growing within the $1M–$10M range, signaling a proven product with international or domestic demand. This presents opportunities to upsell high-value services such as larger-scale deployments, maintenance, software analytics subscriptions, and extended support for battery health monitoring.

Expansion-ready portfolio Recent prototypes of next generation battery module testers and involvement in vehicle grading technology demonstrate an active product roadmap. Sales opportunities exist in tiered hardware upgrades, integration with existing manufacturing lines, and collaborations with OEMs or battery recyclers seeking advanced testing and grading capabilities.

Sustainability and social impact DOE-backed solar grid projects aimed at workforce training and disadvantaged communities highlight a sustainability and ESG alignment. This creates potential for partnerships with impact-focused buyers, government programs, or utilities pursuing responsible sourcing, green workforce initiatives, and grant co-funding for diagnostics-enabled recycling and reuse programs.

ReJoule Tech Stack

ReJoule uses 8 technology products and services including Squarespace, MySQL, RequireJS, and more. Explore ReJoule's tech stack below.

  • Squarespace
    Content Management System
  • MySQL
    Database
  • RequireJS
    Javascript Frameworks
  • HubSpot
    Marketing Automation
  • C++
    Programming Languages
  • R Project
    Programming Languages
  • Apache
    Web Servers
  • Sitelinks Search Box
    Web Tools And Plugins

Media & News

ReJoule's Email Address Formats

ReJoule uses at least 1 format(s):
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 LinkedInCrunchbase.

How much revenue does ReJoule generate?

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As of July 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 July 2026, ReJoule has approximately 16 employees across 2 continents, including North AmericaAsia. Key team members include Trading Manager: J. S.Board Advisor: C. Y.. 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 SquarespaceMySQLRequireJSHubSpotC++R ProjectApacheSitelinks Search Box.

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 July 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 $6.3Mas a grant.

  • $1M - $10M

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

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 $6.3Mas a grant.

  • $1M - $10M

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

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