Our Board

Graeme Wallis

executive director

Graeme was the Managing Director and Chairman for over 40 years prior to transitioning to his current role of Executive Director. Graeme has been with the company for over 47 years.

Prior to this, Graeme spent 5 years in the finance industry.

Relevant Qualifications & Memberships

  • Member of The Australian Institute of Company Directors (AICD)
  • Life membership of both Australian Drilling Industry Association (ADIA) and Mineral Drilling Association of Australia (MDAA)
  • Member The Australasian Institute of Mining and Metallurgy (AusIMM)
  • Recipient of the Order of Australia (OAM)

Jamie Wallis

NON-EXECUTIVE Senior Director

In 1964, Jamie and his father started Wallis Drilling, initially operating in the Northern Territory but later in Western Australia and then the rest of Australia. With over 40 years in executive roles within the business he has been central to the design and construction of drilling rigs, development of the Wallis Air Core drilling system, and lead many overseas drilling projects.

Mark Crumby

Executive chairman

Mark joined Wallis in 2009 following ten years in executive roles at the ANZ Banking Group.

Relevant Qualifications & Memberships

  • Masters of Business Administration
  • Graduate of the Australian Institute of Company Directors
  • Member of the Australian Institute of Directors

Grant Wallis


Grant has more than 20 years' experience with Wallis Drilling in management roles. He has managed the Iron Ore, Mine Services, International and Exploration drilling divisions. Grant transitioned into the role of Chief Operations Officer in November 2021, having accountability for the operational and administrative functions of the business and then into the role of Managing Director and Chief Executive Officer in February 2023.

Relevant Qualifications & Memberships

  • Bachelor of Business from Edith Cowan University
  • Cert IV in Business (Frontline Management), Training Services Australia
  • Graduate of the Australian Institute of Company Directors
  • Member Australian Drilling Industry Association (ADIA)
  • Council Member Association of Mining and Exploration Companies (AMEC)
  • Senior Executive MBA (SEMBA), Melbourne Business School

Kim Wallis

executive Director

Kim Wallis has over 17 years of experience with Wallis Drilling, currently serving as the Drilling Manager - Exploration. During his time at Wallis Drilling, Kim has also led Wallis's Coal Seam Gas Drilling Division in Queensland and their International Division, managing contracts in Zambia, Kenya, South Africa, Madagascar, and Chile. Kim has served on the WA Committee of the ADIA (Australian Drilling Industry Association), contributing to the advancement and advocacy of the drilling industry in Western Australia.

Before joining Wallis Drilling, he gained valuable experience in the IT industry, working for a tier one stockbroking and law firm.

A retired commissioned officer in the Australian Army, Kim brings a wealth of leadership and strategic planning skills to his role. He also has a strong commitment to community service, having served on the board of the North Cottesloe Surf Life Saving Club. Under his leadership, the club achieved a state award, reflecting his dedication to excellence and community engagement.

Kim holds a Graduate Certificate of Business from UWA (University of Western Australia), which has further enhanced his managerial and business acumen.

Fred Wallis


Fred has 35 years' experience within the Western Australian State Government. He has expertise in external audit, internal audit, risk management, internal control, and corporate governance.

Relevant Qualifications & Memberships

  • Bachelor of Commerce Degree
  • Post Graduate Diploma in Business Computing
  • Certified Practising Accountant
  • Graduate Australian Institute of Company Directors

Nigel Cottrill

Company Secretary

Nigel joined Wallis as an accountant in 2000. In 2008 he transitioned to CFO.

Relevant Qualifications & Memberships

  • Bachelor of Business from Edith Cowan University
  • The Tax Institute