Company Profile
STCO – Specialized Tunneling Contracting Co.
Field-proven trenchless execution Across Saudi Arabia
Saudi Arabia's Underground Specialist

Building the
Infrastructure
Beneath Your Feet

Advanced micro-tunneling, HDD, and ground improvement across the Kingdom — precise, safe, and with minimal surface disruption.

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Million SAR Delivered
0
Major Projects
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Max Diameter (mm)
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STCO project site
Who We Are

Integrated Subsurface Engineering

STCO is a strategic joint venture between Al Fahd Company and Al Rawaf Contracting — built to meet Saudi Arabia's growing demand for complex underground infrastructure. We combine advanced German tunneling technology with deep local expertise to deliver every project on time and on spec.

800mm – 3,500mm Tunneling HDD up to 1200mm 9 AVN Machines Government-Approved Contractor
🤝

Joint Venture Partners

Al Fahd Company & Al Rawaf Contracting
What We Do

Our Core Services

Four specialized capabilities, one integrated team — handling any underground challenge across the Kingdom.

01

Micro Tunneling

High-precision AVN pipe jacking from 800mm to 3,500mm in any soil — minimal surface impact, maximum accuracy.

800mm – 3,500mm
02

HDD – Horizontal Directional Drilling

Non-intrusive subsurface installation of gas, water, and telecom pipelines — up to 1200mm using directional mud-motor technology.

Up to 1200mm
03

Shaft Works

CSM (Cutter Soil Mixing) and diaphragm wall solutions for complex urban excavations requiring ground stabilization.

CSM & Diaphragm Wall
04

Open Face Technique

Open shield tunneling uses a protective steel shield for manual or partial-face excavation in stable, dry, or rocky ground.

Open Shield & Tunneling
Track Record

Selected Projects

Trusted by Saudi Arabia's largest infrastructure owners — delivering precision underground works from Riyadh to Makkah and beyond.

SWCC

Riyadh Southern Ring Water Transmission

Micro Tunneling · 2,000 – 3,000mm
85,000,000 SAR
NWC

Al-Maghmas Transmission Line — Third Ring Road

Micro Tunneling · 3,000mm
71,800,000 SAR
NWC

Sewage Networks & Pumping Station — Narges, Riyadh

Micro Tunneling · 800 – 1,200mm
65,000,000 SAR
NWC

Mina Capacity Expansion — Makkah

Micro Tunneling · 600 – 2,600mm
45,000,000 SAR
NWC

Buraidah Drainage & Pumping Station — L12

Micro Tunneling · 700 – 1,200mm
33,000,000 SAR
Green Riyadh

Green Riyadh — Group 8

Micro Tunneling · 2,000 – 2,400mm
12,000,000 SAR
Trusted By

Our Successful Partners

Leading government bodies and prime contractors across the Kingdom

NWCNational Water Company
SWCCSaline Water Conversion Corp.
Green RiyadhGreen Riyadh Program
Ministry of HousingMinistry of Housing
SATCAl-Sabq Al-Arabi Trading
Al Fahd CompanyAl Fahd Company
Al Rawaf ContractingAl Rawaf Contracting
CWCContracting & Works Co.
Haif CompanyHaif Company
AL-SHARHAN Co.AL-SHARHAN Co.
SARH ALHADITHASarh Alhaditha
Compliance & Quality

Certified to International Standards

ISO 9001:2015 Certificate
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ISO
9001

ISO 9001:2015

Quality Management System — Thrust Boring, Infrastructure & Shafts Construction

Cert No. VC23018015 · Valid to Jan 2028
ISO 14001:2015 Certificate
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ISO
14001

ISO 14001:2015

Environmental Management System — All tunneling and shaft construction activities

Cert No. VC23027505 · Valid to Jan 2028
ISO 45001:2018 Certificate
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ISO
45001

ISO 45001:2018

Occupational Health & Safety Management System — All field operations

Cert No. VC23031019 · Valid to Jan 2028
Certificate
Our Team

Experienced Operation Staff

A skilled, dedicated team ready for the most demanding underground construction projects across the Kingdom.

12
Engineers
10
Machine Operators
10
Supervisors & Foremen
8
Technicians
8
Welders
30
Skilled Labor
40
Labor Force
118
Total Team

Ready to Go Underground?

Contact STCO for your next subsurface infrastructure project anywhere in Saudi Arabia.

Email Us +966 533 346 230