Pioneering Decentralized Water Solutions in a Trillion-Dollar Market

December 2025 | Investor Analysis

Executive Summary

Rainmaker Worldwide Inc. (OTC: RAKR)  stands at the intersection of critical global infrastructure needs and innovative technology solutions. As water scarcity intensifies worldwide—affecting over 4.4 billion people annually—Rainmaker has positioned itself as a leader in decentralized water and wastewater treatment technologies through strategic acquisitions, cutting-edge product development, and aggressive international expansion.

The company recently achieved a significant milestone by upgrading to the OTCID tier, reflecting enhanced disclosure standards and improved investor accessibility. With over 1,200 systems deployed across 40+ countries and a robust portfolio of patented technologies, Rainmaker is executing a disciplined growth strategy designed to capture market share in the rapidly expanding global water market—projected to exceed $1 trillion by 2030.

Investment Highlights

The Global Water Crisis: A $1 Trillion Market Opportunity

The world faces an unprecedented water crisis. According to UNICEF and the World Health Organization, 4.4 billion people lack access to safe drinking water, while 4 billion experience severe water scarcity annually. Climate change, population growth, aging infrastructure, and industrial demand are accelerating this crisis, creating an urgent need for innovative, decentralized water solutions.

Industry research indicates the global water and wastewater treatment market was valued at approximately $370 billion in 2025 and is forecasted to reach $652 billion by 2034, growing at a 6.5% CAGR. The broader global water market is projected to grow from $880 billion in 2024 to $1.25 trillion by 2032. This trajectory creates substantial opportunities for companies like Rainmaker that provide scalable, sustainable water technology solutions.

Market Size and Growth Projections

Proprietary Technology Portfolio

Rainmaker’s competitive advantage lies in its comprehensive portfolio of patented water technologies, developed both internally and through its strategic investment in Miranda Water Technologies. This integrated approach enables the company to address the full spectrum of water challenges—from generation to purification to treatment and reuse.

Core Technology Solutions

Recent Strategic Developments

OTCID Tier Upgrade (December 2025)

On December 3, 2025, Rainmaker received approval from OTC Markets Group to trade on the OTCID tier, up from the OTC Pink Limited tier. This upgrade requires the company to meet higher disclosure standards, including maintaining its current SEC reporting status and timely filing of Forms 10-Q, 10-K, and 8-K. The OTCID tier involves additional review and verification by OTC Markets, potentially enhancing Rainmaker’s credibility with investors and expanding eligibility for brokers, data platforms, and institutional participants.

OWWC Acquisition (September 2025)

Rainmaker acquired Ontario Water Wastewater Consulting (OWWC) through Miranda Water Technologies, strengthening its North American presence. OWWC brings consulting expertise and custom manufacturing capabilities for advanced wastewater treatment systems. Jamie Mason, OWWC’s founder, has joined Miranda as Vice President of Solution Engineering, leading technology integration across the expanding portfolio.

Prevassa Partnership: Central America Expansion (October 2025)

Miranda Water Technologies entered a strategic distribution partnership with Prevassa, a multinational environmental engineering firm operating across Costa Rica, Panama, Guatemala, Honduras, El Salvador, Nicaragua, and the Dominican Republic. This expansion into seven new markets positions Rainmaker to capture recurring revenue from hotels, commercial developments, remote infrastructure, and residential projects throughout Central America and the Caribbean.

Ontario Housing Development Win (October 2025)

Miranda Water Technologies was selected to provide decentralized wastewater treatment for a major residential development in Northumberland County, Ontario. The Miracell® RBC Ultra system will enable the community to expand from 50 to 150 homes, supporting Ontario’s Bill 17 housing acceleration goals. This project demonstrates the commercial value generated by Rainmaker’s investment in Miranda and validates the company’s technology in the North American market.

Growth Strategy and Revenue Model

Rainmaker’s growth strategy focuses on three pillars: technology innovation, geographic expansion, and strategic partnerships. The company operates a dual revenue model combining product sales with Water-as-a-Service (WaaS) offerings, providing both upfront revenue and recurring income streams.

Strategic Pillars

• Technology Innovation: Continuous R&D investment, exemplified by the ATMOCELL 5K launch with integrated purification—eliminating third-party filtration dependencies
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• Geographic Expansion: Aggressive market entry through regional partnerships (Prevassa in Central America, Mexico office opening) and acquisitions (OWWC in Ontario)
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• Strategic Partnerships: Joint ventures with Viva Industries (Canada/Caribbean operations) and distribution agreements scaling Miranda’s technologies globally
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• Direct Sales Transition: As of Q1 2025, Rainmaker assumed all direct, non-dealer sales of Miranda products in the U.S. and Mexico for improved customer experience and margin capture

Investment Thesis

Rainmaker presents a compelling opportunity for investors seeking exposure to the essential water infrastructure sector. The investment thesis rests on several key factors:

Upcoming Catalysts

Management has identified 2025 as a foundational year, positioning the company for significant revenue growth in 2026. Key catalysts to monitor include:

• ATMOCELL 5K Commercial Deployment: First large-scale deployments expected to generate meaningful revenue and validate market demand
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• Central America Market Penetration: Prevassa partnership expected to yield orders from hospitality, commercial, and municipal sectors
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• Ontario Housing Project Completion: Successful installation may serve as a reference case for additional Canadian developments
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• Mexico Office Expansion: New Aguascalientes presence positions the company for Latin American growth
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• Potential OTCQB Uplisting: The Company has applied to OTCQB, which would further improve investor accessibility

Risk Factors

Investors should consider the following risks when evaluating an investment in Rainmaker:

• Early-Stage Revenue: Trailing twelve-month revenue of approximately $144K reflects the company’s developmental stage; profitability depends on successful commercial scaling
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• Execution Risk: International expansion and partnership integration require effective management execution
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• Competition: Established water treatment companies and emerging technology providers compete for market share
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• Regulatory Environment: Water treatment regulations vary by jurisdiction and may affect deployment timelines
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• Market Conditions: OTC-traded securities carry inherent liquidity and volatility risks

Conclusion

Rainmaker Worldwide Inc. represents a pure-play opportunity in the critical water infrastructure sector. With proprietary technology addressing both water generation and treatment, a global footprint spanning 40+ countries, and aggressive expansion into high-growth markets, the company is positioned to capitalize on the trillion-dollar water market opportunity.

The recent OTCID tier upgrade, strategic acquisitions, and partnership expansions signal management’s commitment to building long-term shareholder value through disciplined growth. While the company remains in an early revenue stage, the infrastructure built in 2025 provides a foundation for anticipated growth acceleration in 2026 and beyond.

For investors with appropriate risk tolerance seeking exposure to essential infrastructure and sustainability themes, Rainmaker offers a differentiated opportunity backed by proven technology and expanding global reach.

Company Information

DISCLAIMER

This report is provided for informational purposes only and does not constitute investment advice, a recommendation, or an offer to buy or sell securities. Investors should conduct their own due diligence and consult with a qualified financial advisor before making investment decisions. Past performance is not indicative of future results. Investing in OTC securities involves substantial risk, including the possible loss of principal. The information contained herein is based on publicly available sources believed to be reliable, but is not guaranteed as to accuracy or completeness.

Report Date: December 2025