It’s late nights, early wins, hard calls. It’s jumping from strategy to sales to operations to people – before your second coffee. And somewhere in the middle of all that movement, you realise: growth needs more than hustle. It needs focus. Structure. And the space to lead with confidence.
Sullivan Collective partners with ambitious founders and leadership teams to unlock clarity, build operational discipline, and support stronger leadership. We bring calm to the chaos. Structure to the sprint. Clarity to complexity.
We work inside the business – not on the sidelines. We ask the hard questions, align the right priorities, and help teams move with purpose and pace.
We’ve worked inside established organisations and rocketship growth companies. We know what holds businesses back – and what moves them forward. And we bring that experience into every engagement.
This isn’t strategy for the sake of it. No frameworks for show, or plans that live in a drawer.
It’s about focus. Execution. And building a business you’re proud to lead – not one you’re just trying to hold together.
Why the name?
We’re not just a consultancy. We’re a collective – a trusted network of experienced thinkers and operators. That means you get deep capability, tailored to your stage, without the overhead or inflexibility of big firms.
We work with you as partners, not just advisors. With clarity, precision, and momentum as the goal.
– Brooke Sullivan, Founder – Sullivan Collective
Brooke brings over 20 years of experience leading strategy and operations in fast-paced, high-growth environments. As Chief of Staff at TikTok ANZ, she helped steer the business through rapid scale, supporting cross-functional leadership and building the operational muscle to sustain growth.
She’s also led major transformation projects across the professional services and tech sectors – known for her calm approach, strategic clarity and ability to align teams around what matters most.
Brooke works directly with every client. Because the business is the product – but the relationship is the value.
We believe that sustainable growth is built through thoughtful leadership, strong operations and well-aligned strategy. That’s what we bring to the table.
We cut through the chaos to keep things moving – prioritising what matters, not what’s loudest.
We believe that sustainable growth is built through thoughtful leadership, strong operations and well-aligned strategy. That’s what we bring to the table.
