Top 10 Wastewater treatment plant Suppliers, Manufacturers, Wholesalers and Traders in Slovenia

1. EcoFlow Solutions

2. CleanTech Slovenia

3. AquaTech Innovations

AquaTech Innovations was born from a simple mission: to make wastewater treatment accessible to small and medium-sized communities. "Too many suppliers focus on large industrial clients, leaving smaller towns struggling to find affordable solutions," says Luka Petrič, AquaTech's founder. Since 2012, AquaTech has specialized in compact, energy-efficient water process equipment that delivers big results without the big price tag.

The company's most popular product? A modular water process system that can be scaled from 500 to 5,000 liters per hour, making it ideal for villages and small cities. "We use a combination of biological treatment and membrane filtration to keep costs low and efficiency high," Petrič explains. "Our systems are easy to install and maintain, so even communities with limited technical staff can operate them confidently."

AquaTech also prioritizes sustainability. Their equipment runs on 30% less energy than traditional systems, thanks to solar-powered options and energy-recovery technology. "We believe clean water shouldn't come at the cost of high electricity bills," Petrič adds. "By making our systems energy-efficient, we help communities save money while protecting the environment."

4. GreenWave Systems

For industrial clients with complex wastewater challenges, GreenWave Systems is the go-to supplier. Founded in 1998, this family-owned business has built its reputation on solving tough problems—like treating wastewater from chemical manufacturing and mining operations. "These industries deal with heavy metals, acids, and other toxic substances that standard equipment can't handle," says Mateja Horvat, GreenWave's technical consultant. "Our effluent treatment machine equipment is designed to break down even the most stubborn pollutants, ensuring compliance with EU regulations."

GreenWave's secret? A focus on customization. "We start by analyzing the client's wastewater in our in-house lab," Horvat explains. "Then we design a system that targets their specific contaminants, using advanced technologies like ion exchange and reverse osmosis. No two systems are the same because no two clients are the same."

Beyond treatment, GreenWave offers comprehensive training for client staff. "We don't just hand over the keys and leave," Horvat says. "We spend weeks on-site, teaching operators how to monitor the system, troubleshoot issues, and optimize performance. It's why our clients have a 95% satisfaction rate."

5. PureFlow Engineering

PureFlow Engineering is all about precision. Specializing in wet process equipment for the pharmaceutical and food industries, the company has earned a reputation for meeting the strictest quality standards. "In these sectors, even trace contaminants can ruin a product batch," says Jana Koprivnikar, PureFlow's quality control manager. "Our wet process equipment is designed to deliver water purity levels that exceed EU pharmaceutical guidelines, ensuring our clients' products are safe and compliant."

Founded in 2008, PureFlow uses a combination of ultrafiltration and activated carbon adsorption to remove even the smallest impurities. Their equipment is also designed for easy cleaning and sterilization, a critical feature for industries with strict hygiene requirements. "We understand that downtime is costly," Koprivnikar adds. "Our systems can be disassembled and cleaned in under an hour, minimizing production interruptions."

PureFlow's commitment to quality has earned them partnerships with major international brands, but they haven't forgotten their roots. "We still serve local Slovenian businesses, offering the same level of precision and support," Koprivnikar notes. "Whether you're a small brewery in Ljubljana or a multinational pharmaceutical company, we treat every client like our most important one."

6. BlueWater Systems

BlueWater Systems takes a holistic approach to wastewater treatment, offering not just equipment but full turnkey solutions. "Many clients need more than a single machine—they need a complete plant design, from concept to commissioning," says Andrej Novak, BlueWater's project manager. Since 2015, the company has overseen the construction of 20+ wastewater treatment plants across Slovenia, each tailored to the client's unique needs.

BlueWater's expertise spans the entire treatment process, from initial water intake to final effluent discharge. They specialize in integrating effluent treatment machine equipment with air pollution control system equipment, ensuring that both water and air are protected. "A plant that cleans water but releases harmful emissions isn't truly sustainable," Novak explains. "Our systems address both, creating a closed-loop solution that minimizes environmental impact."

What clients love most about BlueWater? Their project management. "We handle everything—permits, construction, training, maintenance," Novak says. "Our clients can focus on their core business while we handle the rest. It's why 80% of our work comes from referrals."

7. EcoClean Technologies

EcoClean Technologies is on a mission to make wastewater treatment smarter. "The future of water treatment is digital," says Nika Zupan, EcoClean's tech director. Founded in 2018, the company combines traditional water process equipment with IoT technology, allowing clients to monitor and control their systems remotely via a smartphone app.

EcoClean's smart water process equipment uses sensors to track water quality in real time, adjusting treatment parameters automatically to maintain optimal performance. "If the pH level drops or pollutant levels rise, the system alerts operators and makes adjustments on its own," Zupan explains. "This reduces the risk of human error and ensures consistent results, even when staff are off-site."

The company also offers a cloud-based analytics platform that helps clients identify trends and optimize efficiency. "Over time, the system learns from data, suggesting ways to reduce chemical usage or energy consumption," Zupan adds. "It's like having a 24/7 water treatment expert in your pocket."

Despite their focus on technology, EcoClean hasn't forgotten the human touch. "Our tech is designed to support operators, not ｒｅｐｌａｃｅ them," Zupan says. "We provide ongoing training to ensure clients feel confident using our systems, and our support team is always just a call away."

8. WaterWorks Slovenia

WaterWorks Slovenia has been a staple in the industry since 1990, earning a reputation for reliability and durability. "We build equipment to last," says Boris Mlakar, WaterWorks' production manager. "Many of our first systems, installed 30 years ago, are still running today with minimal upgrades."

The company specializes in heavy-duty effluent treatment machine equipment for industrial clients, particularly in the manufacturing and mining sectors. Their machines are built with thick steel casings and corrosion-resistant components, designed to withstand harsh chemicals and high-pressure environments. "We test every component to the breaking point before it leaves our factory," Mlakar explains. "If it can't handle 10 years of heavy use, we don't ship it."

WaterWorks also offers a unique "lifetime parts warranty" on all their equipment. "We stand behind our craftsmanship," Mlakar says. "If a part fails due to manufacturing defects, we ｒｅｐｌａｃｅ it for free—no questions asked. That's the WaterWorks promise."

While the company has a strong focus on industrial clients, they also work with municipal plants, offering customized solutions for urban wastewater challenges. "Whether it's treating sewage or industrial runoff, we have the experience to get the job done right," Mlakar adds.

9. ClearStream Industries

ClearStream Industries is all about innovation in air and water. "Wastewater treatment doesn't exist in a vacuum—air quality is just as important," says Tina Krajnc, ClearStream's environmental specialist. Founded in 2014, the company specializes in integrated systems that treat both water and air, ensuring a comprehensive approach to pollution control.

ClearStream's air pollution control system equipment is designed to capture and treat emissions from wastewater treatment plants, including odors, volatile organic compounds (VOCs), and particulate matter. "Many clients don't realize how much pollution their treatment process releases into the air," Krajnc explains. "Our systems use activated carbon filters and bio-scrubbers to neutralize these pollutants, creating a healthier environment for workers and nearby communities."

Paired with their water process equipment, ClearStream's integrated systems offer a one-stop solution for clients looking to minimize their environmental footprint. "We recently worked with a dairy plant in Maribor that was struggling with both wastewater and odor issues," Krajnc recalls. "By installing our combined water treatment and air pollution control system, they reduced their environmental impact by 60% and improved community relations significantly."

10. Sustainable Water Solutions (SWS)

Rounding out our list is Sustainable Water Solutions (SWS), a company that lives up to its name by prioritizing eco-friendly technology. "We believe wastewater treatment should work with nature, not against it," says Mihaela Turk, SWS's founder. Since 2016, SWS has focused on green solutions like constructed wetlands, biofilters, and natural effluent treatment systems that use plants and microorganisms to clean water.

While SWS does offer traditional water process equipment, their specialty is nature-based solutions that are low-cost and low-maintenance. "Constructed wetlands, for example, use native plants to filter pollutants, requiring minimal energy and no chemicals," Turk explains. "They're perfect for rural communities or eco-sensitive areas where traditional systems might be too disruptive."

SWS also offers training programs for clients interested in maintaining their own natural treatment systems. "We teach communities how to care for the plants and monitor water quality, empowering them to take ownership of their water future," Turk adds. "It's more than just selling equipment—it's building resilience."

Despite their focus on natural solutions, SWS isn't afraid to blend in technology when needed. "We often combine natural systems with smart sensors to monitor performance," Turk says. "It's the best of both worlds—nature's efficiency and technology's precision."