Leadership Team


David Edwards

Managing Director

David was a founding shareholder of MACA Australia. Prior to that he started both Cooks Construction and BGC Contracting. With a history of working for and with key clients in the mining and industrial sectors since 1978, Dave has built a strong reputation for being able to deliver quality service with minimal fuss. He has held general managerial positions with major mining and civil contractors, and has brought that knowledge with him to further develop the Add Business Group.



Mark Buscombe

Operations Director

Mark has had 14 years of experience in government administration, both managing multi-million dollar establishments and managing project developments with up to 250 staff at a time. He has a strong process management background and a passion for safety and security. Mark has also demonstrated a history of community work through his involvement with the youth in his local area.




Add Water Reticulation Manager
Danny Edwards

Dan’s role is to head up the strategic side of our operations, and run the Reticulation division. The Operations Centre co-ordinates all the logistical aspects of the Add businesses. Dan brings exceptional people and project management skills, whilst also furthering his knowledge through formal tertiary education in Operations and Logistical Management. Dan will be optimising the 16,000m2 site, ensuring all divisions are operating efficiently and effectively, and are delivering high quality service to our customers. As the founding owner of the reticulation division Danny oversee’s the direction and operation of the Retic team as well.

Rob Wittkowsky web (Large)

General Manager Maintenance Services
Rob Wittkowsky

Rob has over 20 years’ experience in the contracted maintenance services industry, with the majority of this spent in state manager roles. He is committed to establishing an efficient, safe and healthy workplace that believes that quality work and customer service are our main focus. Rob is also an experienced Landscapes Manager with experience overseeing both private and commercial landscaping projects. His resulting broad understanding of the entire scope of works allows him to project manage accordingly to ensure that all work is started and completed on time without compromising our high standards.


Business Development and Marketing Director
Jason Hope

Jason’s history is in the WA building industry as a manufacturer, supplier and wholesaler. With a background in marketing for some of Australia’s leading multinational companies, the experiences and ideas of developing a concept and putting process and structure to support its development has become a trademark of his background. With Jason’s help, we look forward to further developing the services and offerings that the Add Business Group currently has, to become a WA service leader.

Ryan Adams web (Large)

General Manager Construction
Ryan Adams

Ryan has been exposed to an extensive range of carpentry and building services, from residential through to commercial works. Heading up our carpentry division will allow Ryan to focus on broadening our carpentry offerings to include residential/commercial and maintenance services. Ryan’s eye for detail and a quality finish, honed while he was a tradesman, is now reflected in his expectations of the carpentry team to do the job right the first time with a sensational finish. As a result, the carpentry division has grown through the referrals of clients who are more than happy with the service they received.




Electrical Manager

Peter Kitson

Peter has extensive experience in electrical service provision for domestic construction and maintenance. This includes projects of up to 30 multi-story townhouses, government department of housing maintenance, renovations and subdivisions. Peter’s team is also experienced in commercial construction and maintenance, including school and government building maintenance. His background in civil works (underground power supply), including design and supervision of project installations by electricians and small to heavy earth moving equipment operators, allows him to bring a wide range of service offerings to the market. Peter’s background also includes infrastructure installation in mining camps, remote power installations (diesel powered generating sets) for private supply, and temporary supply and emergency backup generation. Under his leadership, we are excited about the broad range of services the electrical division brings to the group.

Rachel Hiu web

Accounts Manager

Rachel Hiu

Rachel has a background in business and is responsible for the daily operation and smooth running of the office. She has a broad knowledge of business management and a meticulous approach to accounting. With extensive experience in construction, earthworks and maintenance, both in government and residential works, as well as a bachelor’s degree in Human Resource and Management and a master’s degree in International Business, Rachel is enthusiastic about sharing her expertise, strives for excellence and always aims for outstanding customer satisfaction.

Renae Warne web (Large)

Marketing Manager
Renae Warne

Renae comes from a background of Marketing of over 10 years and has worked across a variety of industries in Western Australia. She enjoys all facets of Marketing and brings with her the passion and flair to develop and manage a multitude of marketing initiatives. We are very excited to have Renae on board and look forward to seeing her skill set assist Add Business Group in becoming a household name.

Rebecca Voice web (Large)

Storage Manager
Rebecca Voice

Rebecca brings over 20 years of customer service in retail.  This includes the last 4 years in the Self-Storage industry. She will be overseeing of the day to day running our new solution in Storage. Rebecca possess a passion for customer service and relates well to people of all ages and ethnic groups. With her positive attitude and enthusiasm she self-motivates herself and her team to achieve a high customer service level.