About Cleantech Engineering Ltd.

Cleantech Engineering Ltd. is a leading water purifier and water treatment solution provider in Bangladesh. Founded in 2011, we’ve been helping local homes, businesses, and communities get access to safe and clean water.

As time went by, our work has grown far beyond simply supplying clean water. We are now aiming to shape an eco-friendly, innovative future through smart, sustainable solutions.

By utilizing advanced technologies such as Reverse Osmosis (RO) systems, arsenic removal systems, and Zero Liquid Discharge (ZLD) plants, we are addressing some of the most complex water challenges in Bangladesh.

Cleantech BD has a simple goal. We want to make clean, safe water accessible through ingenious, resourceful, and affordable water treatment solutions.

We focus on what matters immensely, i.e., quality, cost-efficiency, and protecting the environment. That commitment shapes every decision we make.

Who We Are

Our main goal is to provide clean and safe water to every corner of Bangladesh. And we have been doing exactly that for the last 14 years and counting.

Cleantech Engineering Ltd. is an integrated environmental engineering and trading company, specializing in the water purifier and water treatment sector. Since our founding, we’ve followed a steady development strategy, growing consistently while earning trust through our work ethic and results.

Even in a competitive market, we’ve carved out a strong presence by combining environmental responsibility, technical excellence, and forward-thinking design.

We offer specialized water purification solutions for homes, commercial facilities, and industrial plants that are budget-friendly all over our country.

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Our Mission

Our core mission is to offer reliable, sustainable water solutions that protect health and support a cleaner environment for everyone.

Our Vision

We want to set the standard for clean water solutions and lead the way in water purification in Bangladesh by offering sustainable systems people can trust.

Our Core Services & Solutions

We offer a wide range of water purification and treatment solutions tailored to your needs

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Household Water Purifiers

Clean, safe drinking water at home with advanced filtration technology

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Commercial & Industrial

Large-scale water treatment solutions for businesses and industries

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Wastewater Treatment & ETP

Eco-friendly operations with sustainable wastewater management

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Customized Filtration Systems

Tailored solutions for unique water treatment requirements

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Servicing & Maintenance

Professional maintenance for water purifiers and treatment plants

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Corporate Solutions

Comprehensive services for corporate, industrial, and residential projects

Why Choose Cleantech BD

What makes us different in the water treatment industry

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Innovative Technology

Cleantech BD brings in all the latest and highly innovative water purifying solutions to tackle water challenges in Bangladesh.

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Expert Guidance

We’ve an expert team of certified engineers and consultants who are always with you.

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Eco-friendly Approach

Our solutions are designed not only to deliver clean water but also to protect Mother Nature.

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Proven Experience

We’ve completed over 135 industrial projects and served more than 50 corporate clients and 9,500+ families across Bangladesh.

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Customized Solutions

We offer customized water purification solutions for everything from homes and offices to hospitals and factories.

Our Experience & Expertise

With almost 14 years of industry experience, Cleantech Engineering Ltd. has created a legacy in the water treatment sector of Bangladesh and abroad.

Over the years, we’ve built a strong reputation through proven results:

Every client is unique. And our approach blends technical expertise and hands-on experience to address the unique challenges of each client. We don’t just install systems and then call it done. 

We carefully evaluate, select, and implement the right technologies for every unique scenario. From mobile water treatment units to effluent treatment plants, we ensure solutions are not only effective but also future-proof.

Our engineering team stays at the forefront of new technologies, continually developing the skills needed to implement complex water treatment projects in today’s competitive landscape. This ability to combine theoretical knowledge with practical field experience has made us a trusted partner for businesses and communities alike.

As a result, we can combine our technical knowledge, vast real-world experience, and creative solutions to tackle the specific water challenges each client faces.

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500+

Industrial Projects

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50+

Corporate Clients

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9,500+

Families Served

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14+

ears Experience

Certifications & Recognition

Trusted by industry standards and regulatory bodies

ISO 9001:2015

Quality Management System Certification

BSTI Approved

Bangladesh Standards & Testing Institution

WHO Standards

World Health Organization & Compliance

Trusted by Leading Organizations

Serving hospitals, factories, hotels, and residential complexes across Bangladesh

500+ Beds Served

Healthcare Sector

Water treatment solutions for 50+ hospitals and medical facilities
100+ Factories

Industrial Projects

Process water treatment for textile, pharmaceutical, and food industries
10,000+ Families

Residential Complexes

Community water purification systems for housing projects

Meet Our Expert Team

Experienced professionals dedicated to water treatment excellence

Monirul Islam - Founder of Cleantech Engineering LTD.
Founder & Director

Md. Monirul Islam

With a deep passion for sustainable water solutions, Md. Monirul Islam has been leading Cleantech Engineering Ltd. since 2011.
He brings hands-on experience from project engineering at BEEA (Bangladesh Environmental Engineers’ Association), internships at the Department of Environment (DOE), and conducting baseline environmental surveys at PGCB (Power Grid Company of Bangladesh Ltd.).

This strong foundation has helped him evolve Cleantech into a renowned name in Bangladesh’s water treatment and purification industry.

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Mr. Karim Hassan

Technical Director

15+ years in industrial water treatment systems. Expert in process optimization and system design.

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Ms. Sarah Rahman

Senior Water Engineer

Certified in advanced filtration technologies. Specializes in residential and commercial water systems.

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Ms. Fatima Khan

Quality Control Manager

ISO 9001 certified quality specialist. Ensures all systems meet international water safety standards.

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Mr. Amit Chowdhury

Water Treatment Specialist

Expert in wastewater treatment and environmental compliance. 12+ years in sustainable water solutions.

Sustainability & Social Responsibility

Building a sustainable future through eco-friendly water technology

Water Conservation

Advanced filtration systems that minimize water waste

Eco-Friendly Technology

Chemical-free purification methods for environmental safety

Community Impact

Free water testing for underserved communities

Quality Assurance

Rigorous testing to ensure safe drinking water standards

What Our Clients Say

Trusted by thousands of satisfied customers across Bangladesh