About South 8
South 8 is an Energy & Utilities company based in San Diego (United States) founded in 2013 by Jungwoo Lee and Cyrus Rustomji. Liquefied gas electrolytes are developed for lithium-ion batteries. South 8 has raised $23 million across 7 funding rounds from investors including Shell, Lockheed Martin and DOE. The company has 21 employees. Its chief executive, as recorded, is Tom Stepien. Its Indian entity Clarila Technologies Private Limited reported revenue of ₹6.5 Lakh. South 8 offers products and services including LiGas Electrolyte. Its focus areas include Energy Tech, Energy Storage Tech, Battery and Components. Its competitors include Adden Energy, Ionic Materials and Ampcera; 3 of its 3 listed competitors have raised funding.
Company details
South 8 was founded in 2013 and is based in San Diego, United States. Operations focus on the energy storage sector, where a proprietary LiGas technology is provided as a blend of non-toxic, non-corrosive gases for lithium-ion batteries. Key attributes include reduced fire risk, fast charging capabilities, performance in low temperatures, and improved manufacturability. Leadership includes co-founders and executives overseeing development.
- Headquarters San Diego, United States
- Employees 21
- Founders Jungwoo Lee, Cyrus Rustomji
- SectorsEnergy & Utilities
- Phone•••• ••••
- Website south8.com
- Social LinkedIn
- Legal Name Clarila Technologies Private Limited
- Date of Incorporation 31 May, 2020
- Indian entity revenue₹6.5 Lakh
FY 2024
- Indian entity net loss-₹55,085
FY 2024 · -8% margin
- Indian entity EBITDA-₹48,204
FY 2024 · -7% margin
- Total Equity Funding$23M (USD)
in 7 rounds
- Latest Funding Round$11M (USD), Series B
Dec 2025
- InvestorsShell
& 12 more
- Employee Count21
Associated legal entities of South 8
South 8 operates through Clarila Technologies Private Limited (active). Its filings, financials, charges and directors are on the company page.
| Legal entity | Status | Incorporated | Registered in | Revenue (FY 2024) | Employees | Directors | Company page |
|---|---|---|---|---|---|---|---|
| Clarila Technologies Private Limited CIN U74110KA2020PTC134456 | Active | 31 May 2020 | Bangalore, Karnataka | ₹0.1 Cr | 4 | View details |
Products & Services of South 8
South 8 offers a comprehensive portfolio of products and services, including LiGas Electrolyte.
Liquified gas solution that reduces fire risk in Li-ion batteries for extreme conditions.
Funding Insights of South 8
South 8 has successfully raised a total of $23M across 7 strategic funding rounds. The most recent funding activity was a Series B round of $11 million completed in December 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $23M
- Total Rounds 7
- Last Round Series B — $11M
- First Round $947,890
(Sep 2018)
- Investors Count 13
All 7 funding rounds of South 8 with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Dec 2025 | $11M | Series B | – | W. L. Gore & Associates, Lockheed Martin | |
| May 2024 | Series A | – | Porsche Ventures | – | |
| Aug 2023 | Series A | – | Lockheed Martin | ||
| Jan 2023 | $3.1M | Grant | – | – | |
| Apr 2022 | $12M | Series A | – | Anzu Partners | |
| Aug 2020 | Seed | – | Shell, Taiyo Nippon Oil | – | |
| Sep 2018 | $947,890 | Grant | – | – |
13 investors in total: 13 institutional.
Investors in South 8
South 8 has secured backing from 13 investors, including venture fund and institutional investors. Prominent investors backing the company include Shell, Lockheed Martin and DOE.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Early-stage venture capital investments are provided by Porsche Ventures. | 2016 | porsche.ventures | Luxembourg, Luxembourg | |
Investment in early-stage companies across AI, biotech, and cleantech sectors with access to global resources. | lgtechventures.com | |||
Venture capital fund focused on pre-seed tech startups | foothill.ventures | Los Altos, United States | ||
Investments are made in industrial and life sciences technology companies. | anzupartners.com | Washington, Dc, United States | ||
Venture capital fund backed by the US Government | seedfund.nsf.gov | Alexandria, United States | ||
Venture capital firm | iqt.org | |||
Venture capital investing and portfolio management services for accredited investors. | av.vc | |||
Manufacturer of global security and defense airplanes | 1912 | lockheedmartin.com | United States | |
Energy sources and policies are managed by the DOE. | 1977 | energy.gov | ||
Shell is recognized as a global energy and petrochemical company. | 1907 | shell.com | London, United Kingdom |
Investor details for South 8
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
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Board of directors of Clarila Technologies Private Limited (South 8)
Clarila Technologies Private Limited is the primary company behind South 8. The board of Clarila Technologies Private Limited currently have 4 directors; the longest-serving is Shankar Srinivasan, appointed in 2020.
| Director | Designation | Appointed | Tenure | Entity |
|---|---|---|---|---|
| Shankar Srinivasan DIN 08750108 | Director | 31 May 2020 | 6 yrs 4 mo | Clarila Technologies Private Limited |
| Usha Badriah DIN 08750109 | Director | 31 May 2020 | 6 yrs 4 mo | Clarila Technologies Private Limited |
| Sathyavathy Badriah DIN 10564565 | Additional Director | 27 Mar 2024 | 2 yrs 6 mo | Clarila Technologies Private Limited |
| Bettakunta Rajagopal Badriah DIN 10564605 | Additional Director | 27 Mar 2024 | 2 yrs 6 mo | Clarila Technologies Private Limited |
People of South 8
4 people are tracked at South 8 (4 in leadership); the tracked headcount is 21.
| Name | Role | Group |
|---|---|---|
Jungwoo Lee | Co-Founder & CTO | Leadership |
Cyrus Rustomji | Co-Founder | Leadership |
Tom Stepien | CEO | Leadership |
Rick Cooper | Director | Leadership |
Complete people profiles for South 8
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
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Verified entity values are shown only after access is granted.
Financials of South 8
Figures of Clarila Technologies Private Limited, the primary company behind South 8, for FY 2024. Revenue was ₹6.5 Lakh. Net loss was -₹55,085 (-8% margin). EBITDA was -₹48,204 (-7% margin).
- ₹6.5 LakhRevenue · FY 2024
- -₹55,085Net loss · -8% margin
- -₹48,204EBITDA · -7% margin
- ₹56,670Paid-up capital
Balance sheet, profit and loss, cash flow and ratios of Clarila Technologies Private Limited are on its company page.
Detailed financial statements for South 8
Statement rows, ratios, five-year trends and downloadable financials of the group companies require an active premium plan.
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- Downloads
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Timeline of South 8
3 dated milestones of South 8 across 12 years, from founding to its latest funding, stage changes and deals.
- Founded South 8 is founded.
- Funding First funding round of $948K.
- Funding Latest funding round, Series B, of $11.0M.
Competitors of South 8
South 8 has 3 listed competitors in our database, 3 of them funded. They include Adden Energy, Ionic Materials and Ampcera.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| addenenergy.com | 2021 | Waltham, United States | $20.15M | Solid-state battery solutions and electrolytes are provided through advanced algorithms. | ||
| ionicmaterials.com | 2012 | Woburn, United States | $65M | 40 | Solid polymer electrolytes for solid-state batteries are developed. | |
| ampcera.com | 2017 | Milpitas, United States | $15M | Solid-state electrolyte materials for lithium batteries are developed. |
Detailed competitors of South 8
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
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Web traffic of South 8
The website of South 8 (south8.com) receives about 4.1K visits a month.
- Monthly visits4.1K
▲ 88% vs previous month
Top companies in Energy Storage Systems
3 companies that operate in the same segment as South 8 (Energy Storage Systems) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Electric buses and charging systems are manufactured for fleets. | 2004 | Burlingame, California, United States | USD 857.79 M | USD 309.36 M | 418 | |
Silicon-based solar PV modules are manufactured for diverse applications. | 1985 | San Jose, California, United States | USD 171.73 M | USD 300 M | 600 | |
Iron-air energy storage systems are developed for renewable energy projects. | 2009 | Somerville, Massachusetts, United States | USD 2 B | 902 |
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Related news about South 8
Complete news archive for South 8
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Frequently Asked Questions about South 8
South 8 was founded in 2013 and raised its 1st funding round 5 years after it was founded.
South 8 is headquartered in San Diego, United States. It is registered at San Diego, California, United States.
Tom Stepien is the CEO of South 8, as recorded in our data.
South 8 is a funded company, having raised a total of $23M across 7 funding rounds to date. The company's 1st funding round was a Grant of $947.89K, raised on Sep 2018.
South 8 has 21 employees.
The primary company behind South 8, Clarila Technologies Private Limited, reported revenue of ₹6.5 Lakh for FY 2024.
South 8 was founded in 2013 and is based in San Diego, United States. Operations focus on the energy storage sector, where a proprietary LiGas technology is provided as a blend of non-toxic, non-corrosive gases for lithium-ion batteries. Key attributes include reduced fire risk, fast charging capabilities, performance in low temperatures, and improved manufacturability. Leadership includes co-founders and executives overseeing development.
South 8's top competitors include Adden Energy, Ampcera and Ionic Materials.
South 8 offers LiGas Electrolyte.
South 8 has 13 investors. Key investors include Shell, Lockheed Martin, DOE, Taiyo Nippon Oil, and Porsche Ventures.
South 8 operates through Clarila Technologies Private Limited.
The legal entities of South 8 currently have 4 directors, including Sathyavathy Badriah, Bettakunta Rajagopal Badriah, Shankar Srinivasan and others.