WTR Small-Cap Spotlight

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On this week's episode of the WTR Small-Cap Spotlight, Chris Cooper, the new CEO of XCF Global (NASDAQ: SAFX), joined Tim Gerdeman, Vice Chair & Co-Founder and Chief Marketing Officer of Water Tower Research, and Peter Gastreich, Energy and Sustainable Investing Analyst at Water Tower Research. Cooper shares his extensive aviation and energy industry journey from aspiring pilot to President of Neste US (and more!) and tells us what ultimately attracted him to join as CEO of XCF Global. The conversation covers XCF’s innovative approach to transforming waste and residue feedstocks into SAF, its modular and scalable refinery model, major strategic partnerships like with Phillips 66, the aviation industry's path to decarbonization, and SAF’s role as the only practical and immediate solution. Cooper discusses policy impacts, market challenges, and why XCF is well placed to capitalize on growth opportunities with expansion and new facilities in the US and Australia. 

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In this episode of WTR Small-Cap Spotlight, host Tim Gerdeman and analyst Robert Sassoon speak with Shaun Bagai, CEO of RenovoRx (NASDAQ: RNXT). The company is pioneering targeted oncology therapies and commercializing RenovoCath™, an FDA-cleared multi-specialty local drug delivery device for high unmet needs. We discuss the innovation and advantages of its TAMP™ (Trans-Arterial Micro-Perfusion) platform—powered by the proprietary dual-balloon catheter—and how it sets RenovoRx apart in treating hard-to-reach hypovascular tumors like pancreatic cancer. The conversation also covers RenovoCath’s commercialization strategy and key milestones in its Phase 3 clinical trial aimed at proving the platform’s delivery superiority over the current standard of care.

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Homerun Resources, Inc. is developing a vertically integrated HPQ silica to glass enterprise in Brazil that looks to provide a less expensive, environmentally friendly alternative to China’s dominance in solar panel and other technology verticals, augmented by proprietary AI-based energy management systems.

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Join Tim Gerdeman, Vice Chair & Co-Founder and Chief Marketing Officer at WTR, and Peter Gastreich, Senior Energy Transition and Sustainability Analyst, as they discuss Peter’s recent report on Abundia Global Impact Group (AGIG) including: 1) AGIG’s waste-to-value approach that redirects materials from landfills and incineration; 2) strategy for converting hard to recycle waste plastics and waste woody biomass into high value fuels and chemicals like sustainable aviation fuel (SAF); 3) AGIG's access to proprietary pyrolysis technologies; 4) recent milestones including Cedar Port facility groundbreaking on the Houston Ship Channel and newly announced strategic partnerships for renewable fuel development; 5) recent capital raises and strengthened balance sheet; and other topics.

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On this week's episode of the WTR Small-Cap Spotlight, John Gibson, CEO of Nauticus Robotics (NASDAQ: KITT), joined Tim Gerdeman, Vice Chair & Co-Founder and Chief Marketing Officer of Water Tower Research, and Peter Gastreich, Energy and Sustainable Investing Analyst at Water Tower Research. The conversation covers KITT’s autonomous underwater vehicle (AUV) strategy, technology, and milestones. Gibson highlights KITT’s focus on delivering efficiency, safety, and cost savings and discusses how the new relationship with Forum Technologies (FET) will accelerate KITT's manipulator strategy. Key achievements include successful acquisitions, expanded testing facilities, software retrofits for existing vehicles, and manufacturing partnerships to accelerate growth. Discussion covers capital strategy, plans for the ELOC, and deep-sea mineral exploration strategy. John also emphasizes a disciplined approach to financial management, shareholder value, and a shift from surviving to thriving as Nauticus enters 2026.

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This week on the WTR Small-Cap Spotlight, Ruella Menezes , Director of Energy with the Management Consulting Practice at Kline & Company , sits down with Tim Gerdeman, Vice Chair & Co-Founder and Chief Marketing Officer of Water Tower Research, and Peter Gastreich, Energy and Sustainable Investing Analyst at Water Tower Research. Together, they dive into the game-changing potential of sustainable aviation fuel (SAF) for slashing airline emissions, zero in on what’s fueling the explosive growth in SAF demand, and unpack the real-world hurdles of getting new projects off the ground. The conversation also takes on the tough question of how airlines can afford SAF when it’s still much pricier than fossil jet fuel, explores feedstock bottlenecks and the rise of new production methods, and breaks down the biggest risks ahead—from the need for unified policy to the crucial role of industry collaboration and ongoing innovation.

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On this week's episode of the WTR Small-Cap Spotlight, Jim Deller, CEO of ClearSign Technologies (NASAQ: CLIR), joined Tim Gerdeman, Vice Chair & Co-Founder and Chief Marketing Officer of Water Tower Research, and Peter Gastreich, Energy and Sustainable Investing Analyst at Water Tower Research to discuss: 1) CLIR’s patented ultra-low emissions burner technology for industries like oil refineries and petrochemical plants; 2) how CLIR’s burners help clients meet strict NOx regulations globally without expensive post-combustion equipment; 3) key partnerships that boost manufacturing and credibility; 4) recent milestones like large commercial orders and the launch of a flexible-fuel 100% hydrogen burner; 5) expanding high margin aftermarket sales; and 6) CLIR’s asset-light model approaching break-even profitability.

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In this episode of WTR Small-Cap Spotlight, Stefano Valentini Chairman of DRONE VOLT  (Euronext Paris ticker symbol ALDRV), joins host Tim Gerdeman, Vice Chair, Co-Founder, and CMO of Water Tower Research, along with Dr. John Roy, WTR’s Senior Equity Research Analyst. The conversation explores the strategic priorities of a drone company, focusing on its growth and go-to-market strategy in North America, specifically detailing the local production of the KOBRA drone to meet 'Made in the USA' requirements for government and critical infrastructure contracts. It also delves into the technical and business differentiators, including its LineDrone product, multi-sensor support, platform flexibility, and the scalability and margin structure of its 'Drone-as-a-Service' (DaaS) model, alongside its proactive navigation of the evolving FAA regulatory landscape for BVLOS operations.

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On the latest WTR Small-Cap Spotlight podcast episode, we welcomed Jan Eryk Umiastowski, CFO of GenSight Biologics (Euronext Paris: SIGHT), a late clinical-stage biopharma company based in Paris, France, primarily focused on developing and commercializing novel disease-modifying gene therapies aimed at reversing vision loss from severe neurodegenerative retinal diseases. He discusses GenSight's development pipeline, what's unique about  the company's approach to gene therapy and upcoming target milestones.

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Tune in to the latest WTR Small-Cap Spotlight Flashcast! Join Tim Gerdeman, Vice Chair & Co-Founder and Chief Marketing Officer at WTR, and Peter Gastreich, Senior Energy Transition and Sustainability Analyst, as they discuss Peter's initiation of coverage on Darling Ingredients Inc. (DAR)