About Renergen
Renergen is a publicly listed company based in Johannesburg (South Africa) founded in 2014, and was acquired by ASP Isotopes in January 2026. Natural gas and renewable energy investment firm. Its chief executive, as recorded, is Stefano Marani. Renergen offers products and services including Liquefied Natural Gas (LNG) and Liquefied Helium (LHe). Its focus areas include Energy, Oil & Gas Downstream and Diversified. Its legal entity is Renergen Limited.
Company details
Founded in 2014 and based in Johannesburg, South Africa, investments are directed by Renergen toward developing natural gas and renewable energy initiatives across Africa. The firm focuses on acquiring projects in the energy sector, including the 2015 purchase of Tetra4, which specializes in natural gas and helium extraction. Operations emphasize resource development and sustainable energy transitions in the region, led by CEO Stefano Marani.
- Headquarters Johannesburg, South Africa
- Stage Public
- SectorsEnergy & Utilities
- Email••••••••
- Phone•••• ••••
- Website renergen.co.za
- Social LinkedIn X Facebook YouTube
- Acquired by ASP Isotopes (Jan 2026)
- Legal Name Renergen Ltd
- Latest Funding Round$6.23M (USD), Post-IPO
Nov 2022
- Investors
- Acquired byASP Isotopes
(Jan 2026)
Products & Services of Renergen
Renergen offers a comprehensive portfolio of products and services, including Liquefied Natural Gas (LNG) and Liquefied Helium (LHe).
Liquefied Natural Gas is produced and supplied for energy applications in various sectors
Liquefied Helium is extracted and provided for scientific and technological uses
Apps and channels of Renergen
its YouTube channel RENERGEN has 228 subscribers and 20 videos.
Videos from Renergen
The most watched videos on Renergen's YouTube channel, RENERGEN (228 subscribers). Click a video to play it here.
More on RENERGEN.
Funding Insights of Renergen
- Total Rounds 2
- Last Round Post-IPO — $6.23M
- First Round $6.72M
(Jan 2020)
All 2 funding rounds of Renergen 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 |
|---|---|---|---|---|---|
| Nov 2022 | $6.23M | Post-IPO | – | – | – |
| Jan 2020 | $6.72M | Post-IPO | – | – | – |
1 investors in total: 1 institutional.
Investors in Renergen
Renergen has secured backing from 1 investor. Prominent investors backing the company include ASP Isotopes.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Supply chain solution services for isotope production are provided. | 2021 | aspisotopes.com | Boca Raton, United States |
Investor details for Renergen
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
Verified entity values are shown only after access is granted.
People of Renergen
14 people are tracked at Renergen (7 in leadership, 7 in team).
| Name | Role | Group |
|---|---|---|
Stefano Marani | CEO | Leadership |
Mandy Stuart | Head Of ESG And Marketing | Leadership |
Jakes Koen | Head Of SHEQ | Leadership |
Leonard Eiser | Head: Corporate Finance | Leadership |
Vusumuzi Dlamini | Head Of Operations | Leadership |
Brian Harvey | Chief Financial Officer | Leadership |
Nick Mitchell | Chief Operating Officer | Leadership |
Dennis Kent | Procurement Manager | Team |
Kobie B. | Sherq Administrator | Team |
Craig Schneiderman | Commercial And Project Controls Manager | Team |
Sibusiso Mbatha | Service Support Technician | Team |
Mirna de Hart | Office Services Manager | Team |
Chantelle Marlick | HR And Office Services | Team |
Chandré Kok | Environmental Officer | Team |
Complete people profiles for Renergen
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
- Full employee list
- Team structure
- Board tenure
- Professional contacts
Verified entity values are shown only after access is granted.
IPO & Listings of Renergen
Renergen is a publicly listed company on the OTC with ticker symbol RGNNF in USA, operating in the Energy minerals sector. As a publicly traded entity, the company provides investors with opportunities to participate in its growth story through equity ownership. The listing enables access to capital markets, enhances corporate visibility, and provides liquidity for shareholders while maintaining transparency through regulatory compliance and regular financial disclosures.
- IPO date06 Jun 2019
- Listed onASX: RLT
- Listed entityRENERGEN LTD
- Exchange sectorEnergy minerals
- Share price$0.56 (-1.31% on the day) · 2026-01-14
- Market capitalisation$86.9M
- EPS (diluted, trailing year)$-0.11
- Volume (last session)2,000
- Analyst consensusNeutral
Timeline of Renergen
5 dated milestones of Renergen across 12 years, from founding to its latest funding, stage changes and deals.
- Founded Renergen is founded.
- IPO Lists on the stock exchange (IPO).
- Funding First funding round of $6.7M.
- Funding Latest funding round, Post-IPO, of $6.2M.
- Exit Acquired by ASP Isotopes.
Web traffic of Renergen
The website of Renergen (renergen.co.za) receives about 4.1K visits a month.
- Monthly visits4.1K
▲ 32.7% vs previous month
Websites whose visitors overlap most with Renergen. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
engineeringnews.co.za | engineeringnews.co.za | 100% | #239,359 | – | |
energize.co.za | energize.co.za | 46% | #3,918,624 | – | |
mmqs.co.za | mmqs.co.za | 45% | #6,269,330 | – |
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Frequently Asked Questions about Renergen
Renergen was founded in 2014 and raised its 1st funding round 6 years after it was founded.
Renergen is headquartered in Johannesburg, South Africa. It is registered at Johannesburg, Gauteng, South Africa.
Stefano Marani is the CEO of Renergen, as recorded in our data.
Founded in 2014 and based in Johannesburg, South Africa, investments are directed by Renergen toward developing natural gas and renewable energy initiatives across Africa. The firm focuses on acquiring projects in the energy sector, including the 2015 purchase of Tetra4, which specializes in natural gas and helium extraction. Operations emphasize resource development and sustainable energy transitions in the region, led by CEO Stefano Marani.
Renergen offers Liquefied Natural Gas (LNG) and Liquefied Helium (LHe).
Yes, Renergen is publicly traded on OTC under the ticker symbol RGNNF.
Renergen has 1 investor. Key investors include ASP Isotopes.
Renergen operates through Renergen Limited.
Yes. Renergen was acquired by ASP Isotopes in January 2026.