
Engineering
Excellence
Since 2001
General Contractor & Supply trusted by 50+ multinational corporations for large-scale Mechanical, Electrical & Civil Engineering projects.
From Humble Beginnings to Industry Leader
PT. Gregah Sukses Mandiri Engineering was founded in 2001 with a vision to become Indonesia's most trusted engineering contractor. Starting from mechanical assembly services, we have grown into a full-spectrum engineering firm serving multinational corporations across the nation.
Today, with ISO 9001:2015 certification and a portfolio spanning 100+ major projects, we stand as a testament to unwavering commitment to quality, safety, and engineering excellence.

Our Story
Company Founded
PT Gregah Sukses Mandiri Engineering is a company engaged in Technical Engineering — Mechanical, Electrical, and Civil — established on September 18, 2001 as CV. Gregah Sukses Mandiri.
Major Expansion
On July 2, 2005, the company evolved into PT Gregah Sukses Mandiri Engineering to deliver even more professional services to our clients.
ISO Certified
Our ISO 9001:2015 management system, obtained in 2013, stands as proof of our commitment to construction sector excellence. We continuously provide training and transfer knowledge to the next generation.
Industry Leader
Serving 50+ multinational clients with full-spectrum Mechanical, Electrical & Civil engineering capabilities.
Our Services
Comprehensive Engineering Solutions for Indonesia's Leading Industries
Mechanical Engineering
Full-scale mechanical assembly, steel fabrication, piping systems, and industrial maintenance with rigorous quality control.
- Mechanical Assembly
- Steel Fabrication
- Industrial Piping
- Maintenance & Overhaul
Electrical Engineering
Professional electrical installations including main panels, PLC systems, lightning protection and fire alarm systems.
- Main Panel Installation
- PLC Installation
- Lightning Protection
- Fire Alarm Systems
Civil Engineering
Construction of industrial buildings, plants, machine foundations, roads, and bridges with disciplined execution.
- Industrial Buildings
- Plant Construction
- Road Construction
- Bridge Construction
How We Deliver Excellence
A proven methodology refined over 20 years of industrial engineering projects
Consultation & Survey
In-depth site assessment and requirement analysis to understand project scope and challenges.
Engineering & Design
Detailed engineering drawings and project planning by our certified engineers.
Execution & QC
ISO-compliant execution with rigorous quality control at every milestone.
Handover & Support
Complete documentation, commissioning, and ongoing maintenance support.
The Trusted Name in Industrial Engineering
ISO 9001:2015 & KAN Certified
International quality management certification ensuring every project meets the highest global standards.
Multinational Client Portfolio
Trusted by Air Liquide, Air Products, Panasonic, PGN, Astra Honda Motor, and 50+ leading corporations.
Full-Spectrum Engineering
Complete Mechanical, Electrical & Civil engineering under one roof — from design to commissioning.
Large-Scale Project Track Record
Proven capability managing complex industrial projects with precision, excellence, and on-time delivery.
Proven Track Record
Large-scale industrial projects delivered with precision across Indonesia






Trusted By Industry Leaders
We are proud to serve 50+ multinational companies across Indonesia










































Let's Build Something Great
Ready to start your project? Reach out to us today.
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Head Office
Jl. Industri Utara IV, Pavilion Shop No 3A
JABABEKA Industrial Park 2
Cikarang - Bekasi 17534
Workshop
Jl. Selang Bulak Raya No 15
Wanajaya, Cibitung, Bekasi
Phone
Office: (021) 8984 0829
Workshop: (021) 883 65160

Ready to Build
Something Extraordinary?
With 20+ years of experience and ISO-certified processes, we deliver engineering excellence for every project we undertake.