Meet ​Our Team

Quantum Underwriting Agencies are proud of our staff’s extensive industry experience and high level of professionalism.
​Meet our dedicated, committed team members. 

ALEX THORNTON (WA)
EXECUTIVE DIRECTOR
E. [email protected]
P. +61 (0)400 518 528

About Alex

Alex is the founding director of Quantum. His insurance career began in 1981 as a Claims Broker.

He later switched to the placing side of the business, before spending time working for a global insurance broker and then directing the Jewellers Block and Specie Division of Gibbs Hartley Cooper.

Alex left the Lloyd's Market at the end of 2003 to pursue new opportunities in Australia.

PETER STREAMES (WA)
EXECUTIVE DIRECTOR
E. [email protected]
P. +61 (0)400 510 665

About Peter

Peter joined Quantum in May 2009, introducing Specie business throughout Asia.

Peter began his career in the London Lloyd’s Insurance Market in 1981, regularly moving between Broking Houses as a Claims Broker (focusing mainly on Marine Cargo and Aviation). In 1990, Peter joined Minet Fine Art & Jewellery team and remained with the same team that was acquired by Jardine Insurance Brokers. In 1996 Peter moved to Miller Group, introducing and developing Specie business within Asia, mainly Hong Kong, Thailand, Malaysia, Singapore and Indonesia.

In 2003, he joined Oamps Special Risks UK and later moved to Besso Group in 2005 before migrating to Australia with his wife, Lisa, and four children to work with Alex at Quantum.

Peter is heavily involved in the Local Football (Soccer) and is proud that Quantum are the main sponsor of Eaton-Dardanup Football Club.

ROBERT BANKS (LONDON)
DIRECTOR - Quantum (London) Services Limited
​E. [email protected]
​M. +44 7925 798 436 

About Robert

Robert joined Quantum in December 2019, forming the Quantum London office alongside Alex and Peter.

Robert’s Insurance career began back in 1987, working for a small Insurance broker in the City of London. He moved to the Miller group 3 years later where he would eventually work for Peter Streames helping to develop Specie Business in Asia.

Robert followed Peter to both Oamps Special Risks UK and Besso Group, where he would maintain his relationship with both Alex and Peter, when they formed Quantum in Australia. Robert continued to work with Peter and Alex for a further 6 years whilst at Gallagher before eventually joining the Quantum family.

Robert is a keen golfer, and is currently a Board Director of Boyce Hill Golf Club in his home town of Benfleet in Essex.

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MATT STOCK (NSW)
HEAD OF UNDERWRITING
E. [email protected]
P. +61 (0)419 379 259

About Matt

With over 30 years’ experience in the insurance industry, Matthew Stock is one of the leading experts in the area of Fine Art & Specie within the Asia-Pacific region.

During the course of his career, Matthew has developed a strong appreciation for the intricacies of insurance as a whole. He understands the value each team member adds and the vital role each plays in contributing to achieving the overall goal.

Starting his career fresh out of school, Matthew has risen through the ranks of the industry from the Claims Office at Lloyd’s of London where he worked as a Claims Technician. His knowledge continued to grow through experience in Claims Services, Broking and various stages of Underwriting. In continuously learning from his respected peers, Matthew has developed an underwriting philosophy with a view to attaining long-term sustainable results and nurturing longstanding relationships.

Matthew’s involvement in the area of Fine Art and Specie dates back to 2003, and he has worked at a senior level in this sector across the UK, Australia and Singapore. His passion for this field is fuelled by the diversity and emotional drivers present in his client base.

VICTORIA WILES-DAY (WA)
SENIOR UNDERWRITER
​E. [email protected]
P. +61 (0)455 664 454

About Victoria

Victoria started work in the Lloyds market in the early 1990s with the Broker Harman Kemp N.A. Ltd working on a variety of different classes of business from North America. A short spell followed with Broker Dennis M. Clayton before a cross over from the Broking side to Novae Syndicates Ltd (formerly SVB) in 2001; firstly working in the service company team before heading across to the UK Liability Syndicate where she remained until 2011.

In 2011 she migrated to Western Australia with her husband and three young daughters, where after three years away from working to settle her Girls, she has happily returned to the Industry with Quantum.

She loves the laid back outdoor lifestyle, endless good weather and amazing food that WA has to offer. Spare time is spent enjoying the great outdoors with her Family and walking her Golden Retrievers.

DEBI GRANADA-CARROLL (NSW)
SENIOR UNDERWRITER
​E. [email protected]
P. +61 (0)429 022 503

About Debi

Debi started her life in Insurance working for QBE Insurance as an Underwriter. After returning from New Zealand and a Hiatus from Insurance (still in Financial Services), Debi commenced working as an Insurance Broker in 2012. Debi obtained her Diploma in Insurance Broking and built a keen interest in Specie Business specifically Jewellers Block Insurance. Debi joined QUA in early 2023 as a Senior Underwriter.

On the weekends you can find Debi, her hubby and their furbaby out and about soaking up the sun by the sea or in the rain in search of the best puppycinos. Debi enjoys spending time with her family and is passionate about Football (soccer) especially when Uruguay is playing.

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MELISSA GRANADA-CALVO (NSW)
UNDERWRITER
​E. [email protected]
P. 1300 974 095

About Melissa

Melissa joined Quantum in May 2023 as an Assistant Underwriter for the commercial lines team.

Melissa offers plenty of experience coming into the business, having worked with WSC Insurance as a broker, and administrative duties with Macey Insurance Brokers. During her time at WSC, she accomplished her Tier 2 Qualification and General Insurance certificates.

When not working, she is a busy Mum of 4 in her spare time she loves to cook and any new project that involves interior design.

KATISSE WILKINS (WA)
UNDERWRITER
​E. [email protected]
P. +61 (0)429 273 257

About Katisse

WA born and bred, Katisse is relatively new to the insurance industry, starting as an Underwriter with Quantum Australia in mid-2023. She comes to us with an eclectic background which includes her tenure in the banking and finance industry, medical administration field and also her skills in graphics and marketing with her Bachelor of Creative Advertising obtained from Curtin University in 2009.

Keeping her busy outside of work are her two young daughters and honorary first (fur)child she shares with her husband James. Katisse and James also have an interest in property and self-manage their small portfolio, where Katisse’s love of a good spreadsheet comes in handy. Family is their number one priority however and with their eldest daughter starting Kindy, 2024 is set to be a year of change and development for all.

With the support of family, her drive to learn, motivation and experience in customer service, Katisse is proving to be a great addition to the QuanTEAM!

CHRISTOPHER STREAMES (LONDON)
ASSISTANT UNDERWRITER - Quantum London
E. C[email protected]
​P. 

About Christopher

After spending 3 months working for Lloyd’s Syndicate AEGIS London during an 8-month period exploring Europe in 2017, Chris returned to Australia to join Quantum in December 2017 as an Account Executive for the Asia Specie Team. After working with the Asia team for 2 years, Chris took over the Australian Private book of business for 4 years, helping Quantum grow this area of business.

Chris has now returned to London to keep learning & expanding his knowledge in the insurance industry, assisting Robert and Peter in the Asia Specie team.

In his spare time he enjoys going to the gym, playing football and has a big passion for travelling the world.

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LISA STREAMES (WA)
ADMINISTRATION ASSISTANT
E. [email protected]
P. 01300 974 095

About Lisa

Lisa’s first taste of the “working life” was acquired in several English restaurants after leaving school. Then, following a stint caring for the elderly, she turned to children, becoming the manager of a leading toy shop before starting her own family of four. 



In 2009, she migrated to Australia with husband Peter and offspring in tow, to begin a new chapter in her life. In quick time she found herself behind a desk assisting Peter and fellow director Alex. Lisa thrives on invoicing, account balancing and keeping the paperwork in order.

In her spare time she and Peter manage their farm which is home to family, and a happy eclectic menagerie of animals.

HELEN GEERCKE (NSW)
CLAIMS MANAGER
​E. [email protected]
P. +61 (0)2 8350 9992

About Helen

Helen joined Quantum in June 2019, as Claims Manager. Helen began her career in 1991 as a Claims Assistant for Kevin R Whelpton and Associates and quickly progressed to Claims Manager, working for Australia Pacific Broking Pty Ltd, Finn Foster and Quattro Risk Services Pty Ltd.

In her spare time she enjoys reading, taking walks and relaxing with her family.