Mr. Ong Oung Kok is actively involved himself in Construction Industry & Building Services since 1995 and to date he has managed to delivered many prestigious projects locally and abroad. The projects that successfully completed and delivered are The Universiti Teknikal Malaysia (UTeM) Melaka under Turnkey Design & Build, UiTM Puncak Alam, University Technology Petronas, Prince Court Medical Center, Hospital Alor Setar, Hospital Sg. Petani, Hospital Ampang, Pavilion Kuala Lumpur, AEON Bukit Tinggi Shopping Centre, Prince Hotel Kuala Lumpur, Ministry of Finance on Lot 2G2 Putrajaya, Ministry of Higher Learning & Ministry of Tourism on Lot 5G2 Putrajaya, Bukit Aman New Headquarters, Menara Kembar Bank Rakyat, Capital Square Retail & Residence, Pavilion Residence, The Troika Residence, One Menerung Condominium and Megasteel Steel Mill. He also worked on some overseas projects like The YAS Island Development Marine Landside Facilities at Finger Wharf in Abu Dhabi & the Free Trade Zone Tunnel for New Doha International Airport (NDIA) in Qatar.
Mr. Ong began his career as Project Engineer with a local firm in 1995 and his last position with the local firm was the Executive Director before joining YDI as the Managing Director.
Mr. Mohd Noor Ab Wahab graduated from the University of Technology Malaysia in year 2000 with Bachelor of Electrical Engineering with honours and major in power system. He is a registered member with the Board of Engineers and Institute of Engineers Malaysia.
He began his career as an Engineer with a local firm which is actively involved in construction, operation and maintenance for electrical infrastructure works for the government and private sectors in Malaysia. Later he joined a well-established Mechanical and Electrical contracting company as a Project Engineer.
With full commitment as a Project Engineer with the firm, he involved himself in several prestigious projects namely University Technology Petronas in Perak, Sg Petani Hospital in Kedah, Prince Court Medical Centre in Kuala Lumpur, Lot 4G1 & 4G2 in Putrajaya and University Teknikal Malaysia Melaka (UTeM) in Melaka.
The last position he held with the firm was the Regional General Manager in Arab Saudi. For the said position, he has carried out the responsibilities in Finance, Operation & Overall Management.
In year 2010 he founded YDI Synergy Sdn Bhd that is to meet clients’ expectations by providing excellent engineering solutions and services.
Sultan Abdul Halim Hospital
Sungai Petani, Kedah
Hospital Ampang
Selangor
Hospital Sultanah Bahiya
Alor Setar, Kedah
Prince Court Medical Centre
Kuala Lumpur
Ministry of Finance Malaysia
Putrajaya
Menara Prisma
Lot 3C4 Putrajaya
Lot 4G1 Putrajaya 
Lot 4G2 Putrajaya 
Lot 5G2 Putrajaya 
Lot 5G2 Putrajaya 
Royal Malaysian Police Headquarters
Bukit Aman, Kuala Lumpur
Menara Kembar Bank Rakyat
Kuala Lumpur
AEON Bukit Tinggi Shopping Centre
Klang
Capital Square
Kuala Lumpur
One Mont Kiara
Kuala Lumpur
Pavilion Kuala Lumpur 
Pavilion Residence
Kuala Lumpur
The TROIKA KLCC
Kuala Lumpur
One Menerung Bangsar
Kuala Lumpur
Universiti Teknikal Malaysia Melaka (UTeM)
Melaka
UiTM Puncak Alam
Selangor
Megasteel
Banting, Selangor
SGL Carbon
Banting, Selangor
Alfaisal University
Riyadh, Saudi Arabia
The YAS Island Development Marine Landside Facilities at Finger Wharf
Abu Dhabi
New Doha International Airport (NDIA)
Qatar