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About Us

07 Nos. capacity of 60 MMSCFD Project  at B-baria
588.31 MW CCPP Project at Sonargaon, Narayanganj

The Royal Utilisation Services (Pvt.) Ltd, Sigma Construction Company are the pioneer in the energy sector with more than 46 years of experiences since 1977 in Bangladesh. We are one of the infrastructure developer in Oil, Gas & Power sector in Bangladesh. We are pursuing business in Pipeline construction including Mechanical, Electrical & Civil works. Recently we stepped in the business relating to LPG covering reticulated system, Auto LPG Dispensing Station (ALDS), Conventional Buoy Mooring (CBM), Pipe Line End Manifold (PLEM), spherical tank, bullet tank etc.


To be among the leading contractors for delivering a personalize standard of services that pertains to a level of excellence.

To provide the most efficient, trustworthy, high-quality service while ensuring international standards of safety and quality.


To have a viable business suitable for sustainable development by assuring the topmost quality and safety.

Having a commitment to long term business relationships with our Clients while providing guidance and innovation in worldwide business by  delivering a wide range of services built on quality, safety, honesty and immense strength.

Area of Expertise

Oil & Gas Sector

Cross Country Pipeline Construction in NG,LPG & LNG Sector

River Crossing by HDD method.

Installation & Commissioning of LPG storage tank, pump and pipeline etc.

LPG Solution for industry, household and auto LPG station.

Associate civil works, Metring works.

Power Sector

Fabrication, Erection, Installation & Commissioning of all piping Trank, Structur etc.

Insulation Works of pipe & tank.

Installation & Commissioning of mechanical & Electrical equipment.

Instrumentation & Control System (SCADA & PLC).

Process Plant



Engineering & Services

Complete set of auto LPG dispensingt station equipment (Storage tank, pump, dispenser etc).

LPG solution for industry household and auto LPG station.

3 wheeler and 4 wheeler LPG kit.

LPG domestic meter.

Bullet Tank,Carousel and other equiment in LPG mother plant & statellite plant.

Bullent tank, fabrication & commissioning of spherical tank, LPG transportation line


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China Petroleum Pipeline
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National Development Engineers Ltd
BD Foods Ltd
Aman Group Ltd
Doreen Power
Index LP Gas Ltd
ACI Godrej Agrovet Private Limited
isolux corsan
Sylhet Gas Fields Ltd.
Bangladesh Economic Zones Authority
Meghna Group of Industries
24 Engineer Construction Brigade-Bangladesh Army