Your Trusted Advisors

Chris Knight

Chris has been with Opteon since 2006 and held the role of Group Chief Executive Officer of Opteon since July 2016. During his time as CEO, Chris has led the Opteon team in successful growth outcomes including many acquisitions in Australia, New Zealand, and most recently is spearheading an expansion in the U.S having undertaken multiple acquisitions. He is currently executing a strategy for Opteon designed to deliver significant growth and diversification through best in class end to end tech-enabled services in each region we service.

Chris has qualifications in Accounting, Real Estate, Valuations, a Master of Business (Property) and Master of Business Administration (MBA). He is a Fellow with the Australian Property Institute (API), a member of the Royal Institution of Chartered Surveyors (RICS), is a Director of the Collateral Risk Network (CRN) USA (2021 to current), and was a Director of the Australian Property Institute 2018-2021.

Lisa Billington

Lisa commenced with Opteon in 2016, playing an important role in Opteon’s transformation to an integrated structure in early 2017, and Opteon’s 27 acquisitions since her commencement.

Lisa is responsible for Opteon’s global legal, risk, compliance, quality and secretariat functions, leading a team of 25 professionals to support Opteon’s strategy and growth in a way that balances opportunities with risk.

Lisa is a senior corporate lawyer with significant experience across a wide range of areas including mergers & acquisitions, corporate governance and general commercial law. Prior to joining the Opteon team, Lisa worked at law firms Clayton Utz and Maddocks and in-house for an education and media company.

Lisa holds a current legal practising certificate, a Bachelor of Laws (Hons) and Bachelor of Science (Hons) from the University of Melbourne and has completed the Governance Institute of Australia’s Certificate of Governance Practice. She was included in Australasian Lawyer’s 2022 in-house leaders list.

Michael Renshaw

Michael is a Non-Executive Director of Opteon, a role he has held since August 2015. With almost 30 years’ senior management experience, Michael possesses a strong understanding of international markets, strategic management, mergers and acquisitions and profitable growth at the Board, CEO and Senior Executive level.

Michael is the founder and CEO of Trilon Group, a 5,700 person North American based infrastructure consulting firm with annual revenue exceeding US$1.2b.  Previous executive roles include Chief Growth Officer at AECOM (NYSE listed with annual revenue of US$20 billion and a workforce of 56,000) and CEO and Managing Director of Cardno (ASX listed with annual revenue of AU$1.2b and workforce of 8,000).

Michael is currently a Non-Executive Director of Cobalt Services Partners a high growth group of companies providing building access solutions.  He previously served as Non-Executive Director of NV5 (Nasdaq listed compliance, technology and engineering firm).

Cliff Rosenberg

Cliff Rosenberg joined Opteon’s Board of Directors in December 2020.

Cliff is an active investor, advisor and board member in the technology sector.

He is a member of the Anacacia Capital Business Advisory Council, and a non-executive director on four listed companies: Nearmap (ASX), TechnologyOne (ASX), A2B (ASX) and Bidcorp (JSE).

With a passion for the start-up space, Cliff was instrumental in helping start, and grow, Australia’s leading online restaurant booking platform, Dimmi.com.au, which was sold to Tripadvisor in 2015; and was an early advisor to Afterpay, and on the board from IPO in 2016 to mid 2020.

In 2009 Cliff was the first employee for LinkedIn in the Asia Pacific region and was MD for Australia NZ and South East Asia from 2009 to 2017. He was also the MD of Yahoo! Australia NZ from 2003 to 2006.

Cliff holds a bachelor’s and master’s degree in business and information systems and is a member of the AICD.

Leslie Butterfield

Leslie has been a Non-Executive Director of Opteon since October 2017. She has a civil engineering degree and background in Project Management and has a wealth of international and local experience in corporate advisory, business process improvement, business development, strategic planning and senior executive roles.

Leslie has a strategic focus on technology and innovation in new and existing businesses. She is a strong supporter of, and mentor to, women in her industry, and is a frequent public speaker actively encouraging young women to consider a career in engineering.

Leslie is currently a Director on the Boards of New Medtek Devices Pty Ltd,  Senversa Pty Ltd, Jasmax Group Limited, and Marsden Jacob Associates. She holds a Bachelor of Science in Civil Engineering from Rensselaer Polytechnic Institute, New York. Leslie is also a Member of the Australian Institute of Company Directors.

Jonathan Bloxsom

Jonathan joined Opteon in 2009, was an Executive Director from July 2010 to October 2019, and has since been a Non- Executive Director. Jonathan has a lifetime of experience in the property industry, growing up in a family committed to property investment and construction. Commencing his career as a cadet valuer in 1986; Jonathan started his own firm in 1989 whilst still a cadet valuer. Aged just 21 with a year to go in his cadetship, he worked alongside his registered valuer partner until he completed his qualifications.

Jonathan is a Fellow of the Australian Property Institute and a Certified Practicing Valuer with accreditations in both the valuation and economy streams of the Australian Property Institute. His areas of expertise are industrial, commercial and rental valuations and advocacy. In recent years he has commenced a renewable energy business and motor racing team.   

Outside Opteon, Jonathan is a director of several companies involved in property investment, construction, property management and agriculture. He is a graduate of the Australian Institute of Company Directors.

Jeremy Samuel

Jeremy Samuel joined Opteon’s Board of Directors in December 2020.

Jeremy is the founder and Managing Director of Anacacia Capital, a leading fund manager that invests in small-mid cap enterprises.

Jeremy is currently also a Non-Executive Director of Anacacia portfolio companies MGI Golf and Sureway. He was the former lead director for Anacacia’s successful investments into Appen, Home Appliances, Lomb Scientific, and Yumi’s Quality Foods. Jeremy holds an MBA from the Yale University School of Management and Arts/Law degrees from the University of New South Wales.