About NIBA

Nicholas Cook

Executive General Manager – Australasian Networks, Broker and Insurer Services at Steadfast Group

Nick joined Steadfast 10 years ago, and in his role as the Executive General Manager for Australasian Networks, Broker & Insurer Services at Steadfast, he oversees the strategic direction, operational excellence, and growth initiatives for the Steadfast broker networks across the Asia-Pacific region.

With a career spanning over three decades in the insurance and financial services industry, Nick brings a wealth of experience in managing complex networks, enhancing carrier relationships, and delivering exceptional service to brokers.

Nick is also President of the National Insurance Brokers Association (NIBA), representing brokers interests at the highest level of industry & government.

Nick was previously at Zurich where he was responsible for the performance of Zurich products & propositions in the marketplace.

In his spare time, Nick enjoys an occasional round of golf, which helps him maintain a balanced and well-rounded perspective both professionally and personally.

Gary Okely

Head of JLT Public Sector – Pacific at JLT Public Sector

Gary’s expertise in advisory, risk and insurance sectors has guided the evolution of innovative solutions tailored to meet government protection needs.

Having worked with insurance markets in Australia, Asia and London during a 40-year career, his approach has been trailblazing. Gary assists governments, businesses and not-for-profits to move beyond traditional insurance approaches and to take the reins for stronger risk management and claims results.

This work has resulted in modernising risk advice to include expanded opportunities in cooperative self-insurance. Gary is also leading conversations on disaster vulnerability and resilience-building in Australia.

Gary is now Head of JLT Public Sector – Pacific, part of Marsh McLennan. He is the the Immediate Past President of the National Insurance Brokers Association and he holds a number of Board positions. He is a Qualified Practicing Insurance Broker.

Stella Pruscino

Head of Broker Network at Steadfast Group

Stella Pruscino is a respected insurance executive with over 30 years of experience in broking, leadership, and strategic development, including senior roles at Marsh, WTW, and Edgewise. As Head of Broker Network at Steadfast Group, she leads broker engagement and strategic initiatives, underpinned by strong personal relationships across the industry. Stella also serves as a Director on the NIBA Board and holds several not-for-profit board roles. She is known for her governance expertise, strategic insight, and unwavering commitment to broker advocacy and innovation.

Lynette Walsh

QLD State Director Global Corporate, and National Brisbane at Aon

Lynette has over 20 years’ experience in the insurance broking industry. Her broking experience is diverse across multiple industries spanning both Ireland and Australia. Lynette is QLD State Director at Aon.

A strategic and creative thinker, who is highly analytical, technical and data proficient, Lynette is a key member of the Aon leadership team to ensure delivery upon client, colleague and commercial expectations.

Lynette is a NIBA Board Director (National Insurance Brokers Association) and has a Bachelor of Commerce and Masters in Strategy.

Steven Hill

Account Director at Insurance House

Steven is an Account Director at Insurance House and has over 35 years’ experience in insurance broking.

He currently holds a Diploma in Financial Services (Insurance Broking) and is a Qualified Practicing Insurance Broker (QPIB).

Steven has held leadership and client management positions in major corporate broking firms as well as other private companies working with clients across a broad range of industries from the very large to privately owned small businesses.His focus is always representing his client first and providing them with the best cover at the best possible premium.

Steven is also a current Board Director of the National Insurance Brokers Association (NIBA) after being Chairperson of the Queensland Divisional Committee NIBA a role he has held for the past 9 years. He has been NIBA Convention Chair in 2019 and 2023. Steven was also recognised in 2018 as the Queensland Broker of the Year.

Mark Saunderson

Head of Metro Branches at Gallagher Canberra

Mark currently serves as the Head of Metro Branches at Gallagher and is a member of the Australian Executive Team. Under his leadership, his business unit has delivered significant improvements in employee engagement, client retention and new business while adding significant capability through strategic acquisitions. As a member of the Executive Team he is involved in and contributes to all aspects of running the Australian organistion

Prior to joining Gallagher, Mark had a successful career in the pharmaceutical industry after finishing his career as a professional athlete, playing baseball in the Unites States for the New York Yankees. 

Mark holds a Master of Business Administration from Southern Cross University and a Bachelor of Arts in Psychology and English from Missouri Valley College.

Gregory Mullins

Founder and CEO at The Envest Group

Greg Mullins is the CEO and founding equity partner of The Envest Group. Greg started his insurance career in South Africa after graduating from Stellenbosch University and securing a place in the highly sought-after Hollard Insurance Graduate Program. In 2006, Greg moved to Sydney to be part Hollard’s expansion into 
Australia. During the next ten years, he was instrumental in building its broker and underwriting business portfolio, eventually leading the Strategic Assets Division.

In 2016, Greg founded Envest as an independent, standalone investment vehicle with the backing of private equity and the support of Hollard executive leadership. Under his management, Envest has grown from a collection of minority-owned interests in broking businesses to a full-scale, privately owned, insurance distribution Group with more than 45 brands placing over $3.9 billion in gross written premiums annually.

Today, The Envest Group is the Australasian platform of the global insurance company, The Ardonagh Group and is backed by institutional investors, Macquarie Capital, and private investors including management.

As CEO, Greg continues to build the size, scale, and success of the Envest Group in Australia and New Zealand, with a focus on merger and acquisition activity, organic growth and operational excellence. Greg is a passionate and inspiring leader, known for his authenticity, attention to client outcomes and commercial results

Brett Piggott

Executive Director at Willis Temby Insurance Brokers

Brett is a respected leader in the insurance industry, bringing over 30 years of technical expertise in underwriting, broking, and risk advisory. Before joining Willis Temby, he held senior state and national leadership roles at major insurers, including HIH, NZI, and Commercial Union (now CGU), where he developed a strong technical foundation in complex risk assessment, policy structuring, and strategic insurance placement.

Since his appointment as Executive Director of Willis Temby in 2000, Brett has played a key role in shaping the firm’s strategic direction, strengthening industry partnerships, and ensuring technical excellence in client solutions. His ability to navigate complex risks, structure tailored insurance programs, and provide expert advocacy has earned him widespread recognition, including being named the 2017 NIBA Stephen Ball Broker of the Year.

Beyond his leadership in insurance and risk advisory, Brett is deeply committed to the development of the next generation of insurance professionals. He actively mentors new career entrants, fostering a culture of technical excellence, integrity, and continuous learning within Willis Temby. His industry leadership was further recognized with his appointment as a Director of the National Insurance Brokers Association (NIBA) in 2025, reinforcing his dedication to advancing the profession and shaping its future.