Our Leadership Team

Graham Cock

Founder and Director,
Ace Contractors Group

Graham has worked in the civil and contracting industry for the past 50 years.
During this time he successfully started G&H Cock as a contracting business, which has developed and grown into the Ace Contractors Group of today. In addition to the civil company, Graham has developed farming enterprises throughout Victoria and New South Wales.

Simon Cock

Managing Director,
Ace Contractors Group

Simon has worked in the farming, contracting, civil and landscape fields for the past 27 years. He currently oversees all projects delivered by the Ace Group. Simon assists our Project Managers to ensure safe, efficient and effective implementation of building practices on the work site.

Geoff Frost

Ace Contractors Group

Geoff has worked in the financial arena for the past 24 years. During this time he has worked in both the Australian and overseas markets. Since starting with the Ace Group of companies in 1994, Geoff has assisted in the rapidly expanding business, using a wealth of financial and business knowledge gained over his career.

Mark Callahan

Construction Manager,
Ace Contractors Group

Mark has more than 35 years local industry experience and for the last 15 years has fulfilled the role of Construction Manager for a number of major Construction Industry contractors in Melbourne. As such, Mark has mentored many young engineers and built successful, collaborative construction teams. Mark has particular interest in, and knowledge of heavy industrial and Transport sector pavements .

Brendan Haynes

Manager, Group Projects / General Manager,
Ace Civil Services

Brendan is the Manager Group Projects at ACE. With knowledge obtained from working in construction both within Australia and overseas, Brendan is accountable for the effective implementation of projects and the growth of the Civil business. Brendan actively provides support to project teams, to identify solutions for day to day construction issues, and support business objectives.

Asoka Chandrawanka

General Manager,
Ace Infrastructure

Asoka has over 30 years experience in civil construction, with considerable expertise in bridges, roads water, and sewerage infrastructure. He has worked extensively throughout Melbourne and regional Victoria, taking on projects that require innovative design, engineering and construction solutions.

Randhir Kumar

General Manager,
Ace Electrical Infrastructure

Randhir has over 20 years of Heavy Industrial Experience in the water and power industries including the design, manufacture and testing of power supply boards, motor control centres, control panels, instrumentation, telemetry/alarm systems and associated works.

Ken Bartlett

Commercial Landscape manager,
Ace Landscape Services

Ken’s 29 year experience in the Civil and Landscaping industries at all levels of project involvement has led him to business and construction management roles.

Wendy Kilcullen

Systems Manager (Safety, Quality & Enviro),
Ace Contractors Group

Wendy is a civil engineer with 17 years post graduate experience, including 15 years in systems development and management in the construction (building, civil and telecommunications) industry. She has exceptional organisation skills and attention to detail.