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San Diego, CA 11–50 employees Energy storage south8.com
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South 8 Technologies
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2 jobs · updated 10 days ago
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About South 8 Technologies

Company Overview

Name

South 8 Technologies, Inc.

Headquarters

San Diego, United States

Founded

2015

Size

Approximately 50 employees ranged from 20 to 47 in recent years (sources: linkedin.com, pitchbook.com). Total funding raised of about $51.8 million including grants (source: caplight.com).

What They Do

South 8 Technologies is a battery technology company specializing in the development and commercialization of LiGas®, a patented liquefied-gas electrolyte platform for lithium-ion batteries (source: south8.com). Their core innovation enables lithium-ion cells to operate reliably across an extreme temperature range from approximately -60°C to +60°C, significantly enhancing safety, fast-charging capabilities, and compatibility with existing battery manufacturing processes (source: linkedin.com). South 8’s technology targets demanding applications in defense, aerospace, electric vehicles, and specialty mobility markets, where harsh environmental conditions require robust battery performance (source: auvsi.org). Their product offerings include finished LiGas battery cells for defense and specialty markets, as well as a LiGas electrolyte and injection integration kit designed for cell manufacturers to incorporate into their production lines (source: south8.com). Additionally, South 8 provides research and engineering services focused on devices utilizing liquefied-gas electrolytes, positioning themselves as a key innovator solving the "fire and ice" challenge by combining wide temperature operation with improved safety and manufacturability (source: anzupartners.com).

Projects & Track Record

South 8 Technologies has established a growing track record with customers actively building prototype systems using LiGas cells manufactured in San Diego, with plans to expand cell-finishing capacity for specialty customers by 2026 and onsite Gigafactory integration targeted for 2028 (source: south8.com). Their technology has been publicly linked to defense and aerospace applications, including extreme cold-weather battery solutions designed for Arctic defense operations, demonstrating their focus on high-performance, mission-critical environments (source: auvsi.org). South 8’s LiGas platform also unlocks new possibilities in electrified transportation markets, broadening their impact beyond defense (source: south8.com). A notable partnership was announced in late 2025 with LG Energy Solution, marking LG’s entry into the aerospace battery sector through collaboration with South 8 (source: south8.com). In 2026, South 8 signed a letter of intent with 3ME Technology to jointly advance extreme cold-weather battery solutions for defense applications, further cementing their role in specialized battery innovation (source: south8.com). Earlier strategic investments from Lockheed Martin Ventures underscore the company’s strong ties to defense markets (source: sdbj.com).

Recent Developments

In December 2025, South 8 Technologies announced an $11 million follow-on funding round co-led by W. L. Gore & Associates’ venture arm and Lockheed Martin Ventures, aimed at accelerating commercialization of LiGas battery cells for aerospace and defense markets (source: south8.com). On April 2, 2026, the company executed a $9.2 million PowerForward Battery Manufacturing Grant Agreement to expand advanced battery manufacturing capabilities in San Diego, signaling a significant scale-up in production infrastructure (source: south8.com). The same day, South 8 and 3ME Technology formalized their collaboration through a letter of intent to develop battery solutions tailored for extreme cold-weather defense operations, reinforcing their strategic focus on harsh environment applications (source: auvsi.org). The company’s 2025 and 2026 news flow also highlights the LG Energy Solution aerospace partnership and ongoing efforts to build specialty production capacity in San Diego, supported by an expanding investor base and grant funding that extend their commercialization runway (source: south8.com).

Working There

South 8 Technologies offers roles primarily focused on battery chemistry, cell manufacturing, business development, strategy, and operations, reflecting the company’s specialized technology and growth stage (source: south8.com). Leadership positions include CEO, CSO, and VP of Strategy, indicating a structured executive team guiding innovation and commercialization efforts (source: south8.com). The company’s small-team environment, consistent with approximately 50 employees, is headquartered in San Diego and fosters close collaboration across departments (source: linkedin.com). Commercial and partnership-facing roles are also integral, as evidenced by the appointment of a Senior Business Development Manager in 2026, highlighting the importance of external stakeholder engagement with defense, aerospace, and battery manufacturing sectors (source: south8.com).

Last updated Sep 18, 2026 · Report an issue