SePRO Acquires Earth Science Labs in Major Water Security Push

CARMEL, Ind. – April 01, 2026 – In a significant move to bolster the nation's water security infrastructure, SePRO Corporation today announced its acquisition of Earth Science Laboratories, Inc. (ESL), a specialized provider of advanced water treatment technologies. The deal integrates ESL's fast-acting chemical solutions into SePRO's science-led, digital-first platform, creating a powerhouse entity aimed at tackling escalating challenges in drinking water, conveyance systems, and ecosystem management.

This acquisition combines two complementary forces in the environmental sector. SePRO, a leader in water and land restoration since 1994, brings a sophisticated arsenal of diagnostic tools, digital intelligence, and extensive field science. ESL, known for its innovative chemistry, contributes its flagship products: EarthTec®, a versatile solution for controlling algae and mitigating taste and odor issues in drinking water, and EarthTec® QZ, a specialized formulation for combating invasive zebra and quagga mussels.

The merger promises to deliver more precise and comprehensive solutions for the municipalities and water managers on the front lines of water quality preservation. "The acquisition of Earth Science Laboratories strengthens our ability to support customers as water challenges continue to evolve," said Dr. Tyler Koschnick, CEO of SePRO Corporation. "By bringing together ESL’s team and advanced treatment technologies with SePRO’s deep scientific insight and digital intelligence, we are expanding our portfolio to advance water quality and support healthier, more resilient systems over time."

A Strategic Play in a Consolidating Market

This acquisition is not an isolated event but the latest in a deliberate and aggressive growth strategy by SePRO, which is backed by majority investors Stanley Capital Partners and Goldman Sachs Alternatives. Over the past year, the company has executed a series of strategic buyouts to build an end-to-end digital water management platform. These include the acquisitions of Arietta.ai in August 2025 for its artificial intelligence expertise, Green Eyes LLC in April 2025 for its real-time, field-based nutrient analysis technology, and Resolve Hydro in September 2025, which specializes in satellite-based diagnostics for harmful algal blooms and aquatic weeds.

By purchasing ESL, SePRO is now adding a critical treatment component to its diagnostic and analytical framework. This vertical integration positions the company to offer a complete 'diagnose-and-treat' service, a significant competitive advantage in the increasingly complex water treatment industry. The market is witnessing a strong trend toward consolidation as providers seek to offer more holistic solutions that address tightening environmental regulations and growing public demand for safe, clean water.

With an estimated annual revenue of $7.5 million and a dedicated team of around 43 employees, ESL represents a valuable asset. The integration of ESL's field technical specialists, scientists, and operations staff will further bolster SePRO's human capital and on-the-ground expertise.

Merging Digital Intelligence with Advanced Chemistry

The true synergy of this acquisition lies in the fusion of SePRO's high-tech diagnostics with ESL's targeted chemical treatments. SePRO's platform can leverage satellite imagery, AI-powered predictive modeling, and real-time water quality data to pinpoint the exact nature and location of a problem, such as an incipient harmful algal bloom in a municipal reservoir. This data-driven approach allows for unprecedented precision.

Following diagnosis, ESL's technologies can be deployed with surgical accuracy. The company's EarthTec® products, which are advanced copper-based solutions, are part of what it calls a "green chemistry" approach. This methodology aims to achieve effective control of algae or invasive species using lower doses over longer periods, minimizing the impact on the surrounding native ecosystem. By combining SePRO's diagnostics with ESL's targeted chemistry, water managers can move from broad, reactive treatments to proactive, prescriptive interventions.

This integrated model promises not only greater efficacy but also enhanced environmental stewardship. Using data to guide chemical application reduces overuse, protects non-target species, and provides a more sustainable path to maintaining water quality in lakes, reservoirs, and conveyance infrastructure.

Tackling Critical Water Infrastructure Challenges

The practical implications for communities and public utilities are substantial. Invasive species, particularly zebra and quagga mussels, pose a multi-billion dollar threat to North American infrastructure. These mussels colonize and clog water intake pipes for power plants, industrial facilities, and drinking water systems, leading to costly damage and operational shutdowns. ESL's EarthTec® QZ is specifically designed to manage these infestations, and its integration into SePRO's portfolio provides a powerful tool for infrastructure resilience.

Similarly, the proliferation of harmful algal blooms (HABs) is a growing public health concern. These blooms can produce toxins that contaminate drinking water sources, force the closure of recreational water bodies, and create unpleasant taste and odor problems for consumers. EarthTec® directly addresses these issues by controlling the cyanobacteria responsible for many HABs. When paired with SePRO's predictive analytics, the combined entity can help water managers anticipate blooms and intervene before they become a full-blown crisis.

John Cooper III, CEO of Earth Science Laboratories, noted the direct benefit to the public. “SePRO is a strong strategic fit for our technology, and we are confident in their ability to expand our reach to a broader group of customers,” he stated. “This will improve water quality for both existing and new customers, and importantly, for the people who depend on that water every day. This is a positive outcome for our team, our customers, and the communities we serve.”

Navigating Environmental Stewardship and Regulation

Operating in the water treatment sector requires navigating a complex web of environmental regulations, with the Environmental Protection Agency (EPA) overseeing the use of algaecides and molluscicides like those produced by ESL. SePRO's emphasis on science-led stewardship and data-driven application aligns well with the regulatory push for more responsible and sustainable environmental management.

The ability to precisely monitor water conditions and apply targeted treatments demonstrates a commitment to minimizing environmental impact, a key consideration for regulators and the public alike. By providing a more complete picture of an aquatic ecosystem's health, SePRO can help its clients not only solve immediate problems but also develop long-term strategies for maintaining ecological balance.

As water resources face mounting pressure from climate change, pollution, and population growth, the need for innovative and integrated solutions has never been more urgent. The union of SePRO and Earth Science Laboratories represents a forward-looking approach, creating a more formidable and sophisticated partner for those tasked with protecting and restoring the world's most vital natural resource.