HRSB Sigma Envirotech Sdn. Bhd. is a joint venture company between HRSB Holdings Sdn. Bhd. and Sigma Water Engineering (M) Sdn. Bhd. and is based in Puchong, Selangor. Incorporated in 2019, HRSB Sigma Envirotech’s business is centred towards supporting our clients to achieve their sustainable development goals by ensuring responsible freshwater usage and wastewater discharge. With Sigma's more than twenty years of experience in water and wastewater treatment and HRSB's acumen in plant maintenance & turnaround works, HRSB Sigma Envirotech provides the best platform as a reliable solutions provider for your water & wastewater systems.

HRSB Holdings

HRSB Holdings Sdn Bhd, formerly known as HSE Resources Sdn Bhd, is an Integrated Management System (IMS) certified and 100% Bumiputera company based in Melaka, Malaysia. With technical support from its growing subsidiaries and strategic partners, HRSB has amassed substantial expertise in Project Management, Turnaround Works, Plant Maintenance, EPCC, Scaffolding Services, and Training among others.

At present, HRSB has delivered contracts at a cumulative value amounting to RM500m with more than 1m of total safe manhours through its plant services activities across Peninsular Malaysia. In 2019, HRSB was appointed as one of PETRONAS' anchor companies in the Vendor Development Programme (VDPx) initiative.

Sigma Water Engineering (M)

Sigma Water Engineering (M) Sdn Bhd is a company owned and managed by a team of professionals with extensive local and international experience in water and wastewater treatment processes based in Selangor, Malaysia. It serves as the regional headquarters for its parent company, Sigma Water Canada Inc.

Sigma specializes in custom - designed water/wastewater treatment plants on a turnkey basis, offering complete project services from design to commissioning and after-sales support and training. Sigma has served numerous clients across Asia, the Middle East, Africa and South America.



We believe that what we do have a positive impact on our customers and the  environment and this belief will drive our performance, inspire and motivate others around us.

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