Our Executive Team

An experienced team of highly successful professionals

Our executive team is a highly motivated group of professionals working together to manage the finance, sales and operations of this uniquely Australian business. The team has all previously held senior positions in very successful telecommunications, ICT and engineering businesses. GreyScan is in safe hands with this team given their proven experience and expertise in developing products and distributing them nationally, and globally.
This team leads a highly-energized, experienced and engaged team of staff that are excited to be involved in the roll-out of our world’s first inorganic explosive trace detection product.
Samantha Ollerton

Samantha Ollerton

Chief Executive Officer

Samantha has over 20 years of experience in the global security and forensics market. She is a globally recognized authority on threat detection with an unparalleled network of contacts worldwide.
She joins us from Rapiscan, a major US security systems manufacturer, where over the past 5 years, she has led its trace detection product portfolio that has a global install base in excess of 38,000 units.
Qualified as a chartered chemist and scientist, she began her career providing forensic services to law enforcement agencies in UK and Europe. She is acknowledged as one of the few world leading experts in trace detection technologies. She has overseen or provided forensic evidence in thousands of civil and criminal cases.
With this knowledge, she has created and launched key disruptor products for a variety of explosives or narcotics detection requirements, working with government agencies in security, law enforcement, commercial entities and the military.
Richard Burley

Richard Burley

Chief Operating Officer

Richard has worked for challenger businesses in the finance, energy and telecommunications sectors.  He has held roles as an adviser, founder, owner and executive manager.  Prior to joining GreyScan, Richard was, an Executive General Manager responsible for the Defence and Government business of Vocus Communications, an ASX listed data networks company. In that role Richard held line operating oversight of mission critical data networks for organisations such as the Reserve Bank, Bureau of Meteorology and various law enforcement agencies.  Richard also has a background in investment banking where he worked as an extension of management teams on company transforming transactions in the energy and mining industries.  As part of this background Richard has seen how successful organisations: execute on a growth agenda, foster management tempo and put capital to work.

Gunther Kattwinkel

Gunther Kattwinkel

Chief Financial Officer

Gunther has worked in challenger businesses in the finance and telecommunications sectors as well as professional practice and has held senior finance roles. He has a strong understanding of public and private company reporting and risk management Prior to joining GreyScan, Gunther was the General Manager of Finance responsible for the Enterprise, Wholesale & Government business of Vocus Communications, an ASX listed data networks company. In that role Gunther was responsible for managing the end to end financial operations, including reporting to external equity and debt capital market investors of a business turning over in excess of $700 million annually.
Gunther also has over 10 years’ experience in professional practice as a qualified Chartered Accountant with expertise in the audit, servicing large multinational organisations across a range of different industries including manufacturing, construction and retail. He has seen how these organisations successfully deliver on a growth agenda and drive operational excellence.

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GreyScan Pty Ltd
Unit 9, 435 Williamstown Road
Port Melbourne VIC 3207

Phone: +61 (03) 9112 0333

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