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Welcome to Assidua Technologies!

We are committed to delivering reliable and future-ready power solutions that drive business continuity and growth. With a focus on innovation, efficiency, and long-term sustainability, we serve evolving industries with precision and care. Our expertise and dedication ensure that your power infrastructure is always one step ahead. At Assidua, we do more than power systems — we power success.

Our Leadership

Mr. Vengadasalam Nadarajah

Chairman – Assidua Technologies (Pvt) Ltd

Mr. Vengadasalam Nadarajah is a distinguished business leader whose strategic foresight and multi-industry influence have shaped Sri Lanka’s pharmaceutical, healthcare, technology, and engineering sectors. He began his career at the State Pharmaceuticals Corporation, where he gained deep insights into market behavior and healthcare demands; expertise that accelerated his rise through leadership roles.

His impact grew significantly as CEO of Pharma Associates and later as Chairman of several major pharmaceutical enterprises, including Celogen Lanka and Kelun Lifesciences, Sri Lanka’s EU GMP-certified manufacturers. He also chairs Axia, Diyatha Pharmaceutical & Healthcare, and Pharmaestica Lanka, guiding each organization toward operational excellence and sustainable growth.

Beyond pharmaceuticals, his leadership extends to technology and engineering as Chairman of Assidua Technologies. A transformative and ethical leader, Mr. Nadarajah continues to shape industries, strengthen national capabilities, and drive long-term economic progress.

Mr. Nadarajah Rishikumar

Director - Assidua Technologies (Pvt) Ltd

Mr. Nadarajah Rishikumar brings strategic vision, analytical depth, and cross-industry leadership to Assidua Technologies. With a BSc from LSE, an MBA with Distinction from Cambridge Judge Business School, and HMX Pharmacology from Harvard Medical School, he blends business strategy with scientific insight; strengthening Assidua’s multidisciplinary approach.

He began his career at Moody’s Analytics Knowledge Services before working with global organizations such as the British Antarctic Survey, Native Design, and AzurA. In 2016, he transformed Celogen Lanka into Sri Lanka’s largest pharmaceutical manufacturer, leading it to achieve EU GMP certification in 2024.

At Assidua, he guides corporate strategy, innovation, and long-term capability building. His commitment to responsible progress and global standards continues to drive the company’s growth and regional impact.

Mr. Hewa Walgamage Roshan

Chief Finance Officer – Assidua Technologies (Pvt) Ltd

Mr. Hewa Walgamage Roshan brings over 15 years of financial expertise that has been instrumental to Assidua’s stability and growth. Armed with an MBA in Finance from Cardiff Metropolitan University, he has led financial strategy, governance, and performance across a diversified group spanning pharmaceuticals, healthcare, technology, and real estate.

His journey from Accountant to CFO - shaped through key roles at Pharma Associates and later across companies including Celogen Lanka and Kelun Lifesciences reflects his mastery in building strong financial frameworks and ensuring compliance with global standards. His disciplined, data-driven leadership continues to strengthen Assidua’s financial resilience and supports the group’s expansion into new markets and industries.

Mr. R. Sadishkumar

Founder & Director – Assidua Technologies (Pvt) Ltd


Mr. R. Sadishkumar is the visionary behind Assidua Technologies, a company he founded in 2012 and built into one of Sri Lanka’s most trusted names in power and engineering solutions. With over 35 years of industry expertise, he brings technical mastery, strategic clarity, and an unwavering commitment to excellence.

Educated at St. Anthony’s College, Wattala, and trained at the German Technical College in Electrical and Electronics, he established a foundation of precision and problem-solving that defines his leadership. His deep experience in UPS systems, power conditioning, and engineering innovation has shaped Assidua’s reputation for reliability and foresight.

Respected for his integrity and resilience, he continues to guide Assidua’s growth ensuring the company remains grounded in its founding principles while embracing new opportunities and emerging technologies.

Empowering Businesses with Reliable Energy Solutions

Founded in 2012, Assidua Technologies has become a leader in Sri Lanka’s power solutions industry. As a subsidiary of the Shan Group of Companies, we bring expertise, global partnerships, and a commitment to excellence to every project. With the experience of more than a decade, we provide high-quality UPS systems, inverters, stabilizers, batteries, and tailored power solutions for diverse industries. Our experienced team ensures reliability, efficiency, and long-term performance. Built on strong customer relationships and partnerships with global manufacturers, we uphold the highest standards of service and innovation, earning a trusted reputation in the industry.

Our Vision & Mission

Our Mission

At Assidua Technologies, we are committed to delivering high-quality power solutions backed by exceptional customer service. We prioritize reliability, innovation, and long-term partnerships to ensure our clients receive the best value for their investment.

Our Vision

To be the leading provider of innovative power solutions in the region, empowering businesses and communities with reliable, sustainable, and cutting-edge technology that drives growth and prosperity for generations to come.

Our Values

We go above and beyond to provide value to our customers’ businesses through integrity, reliability, and innovation, delivering dependable power solutions. By exceeding expectations and embracing sustainability, we support their success while benefiting employees and the environment.

Integrity

We uphold transparency, honesty, and professionalism in all that we do.

Integrity

We uphold transparency, honesty, and professionalism in all that we do.

Reliability

Our customers can count on us for consistent power solutions and exceptional service.

Reliability

Our customers can count on us for consistent power solutions and exceptional service.

Customer Commitment

Our customers are at the heart of our business, and we go above and beyond to meet their needs.

Customer Commitment

Our customers are at the heart of our business, and we go above and beyond to meet their needs.

Innovation

We leverage cutting-edge technology to enhance our products and services continuously.

Innovation

We leverage cutting-edge technology to enhance our products and services continuously.

Sustainability

We are dedicated to responsible practices that support our customers, employees, and the environment.

Sustainability

We are dedicated to responsible practices that support our customers, employees, and the environment.

Quality & Expertise

Driven by expertise and precision, we deliver reliable power solutions that meet the highest standards of quality and performance.

Quality & Expertise

Driven by expertise and precision, we deliver reliable power solutions that meet the highest standards of quality and performance.

Our Values

We go above and beyond to provide value to our customers’ businesses through integrity, reliability, and innovation, delivering dependable power solutions. By exceeding expectations and embracing sustainability, we support their success while benefiting employees and the environment.

Our Strength

In-House Repair Team

Our expert engineers perform precise diagnostics, repairs, and component replacements in fully-equipped service centers for optimal performance.

Onsite Service & Repair Team

Our field specialists swiftly diagnose and resolve power issues at client locations, ensuring seamless operations and minimal disruptions.

24/7 Technical Support

Our dedicated support team provides round-the-clock troubleshooting, expert guidance, and emergency assistance to minimize downtime and ensure reliability.

Island Service Support

Our teams, equipped with advanced tools, respond rapidly to power failures, delivering onsite repairs and maintenance anywhere in Sri Lanka.

In-House Repair Team

Our expert engineers perform precise diagnostics, repairs, and component replacements in fully-equipped service centers for optimal performance.

Onsite Service & Repair Team

Our field specialists swiftly diagnose and resolve power issues at client locations, ensuring seamless operations and minimal disruptions.

24/7 Technical Support

Our dedicated support team provides round-the-clock troubleshooting, expert guidance, and emergency assistance to minimize downtime and ensure reliability.

Island Service Support

Our teams, equipped with advanced tools, respond rapidly to power failures, delivering onsite repairs and maintenance anywhere in Sri Lanka.

In-House Repair Team

Our expert engineers perform precise diagnostics, repairs, and component replacements in fully-equipped service centers for optimal performance.

Onsite Service & Repair Team

Our field specialists swiftly diagnose and resolve power issues at client locations, ensuring seamless operations and minimal disruptions.

24/7 Technical Support

Our dedicated support team provides round-the-clock troubleshooting, expert guidance, and emergency assistance to minimize downtime and ensure reliability.

Island Service Support

Our teams, equipped with advanced tools, respond rapidly to power failures, delivering onsite repairs and maintenance anywhere in Sri Lanka.

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Location
Assidua Techologies PVT LTD,
No.149, Galle Road, Dehiwala.

IT Power Hub - Showroom 2F5, 3rd Floor, Unity Plaza, Colombo 04.

Assidua Stores & Warehouse 22, Jaya Mawatha, Ratmalana
Contacts us
011 2710088 marketing@assiduaonline.com
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