Brooke Sullivan is the founder of Sullivan Collective, bringing over 20 years of experience in strategic operations and leadership within high-growth technology companies. As Chief of Staff at TikTok ANZ, Brooke played a pivotal role in scaling the organisation during a period of rapid expansion, overseeing strategic initiatives and operational frameworks that supported significant growth. Her expertise lies in bridging the gap between strategic vision and operational execution, ensuring that ambitious ideas translate into tangible outcomes.​

At Sullivan Collective, Brooke partners with founders and leadership teams to navigate the complexities of scaling businesses. Her approach is hands-on and collaborative, focusing on aligning strategy with day-to-day operations to drive sustainable growth. Brooke’s deep understanding of the challenges faced by both startups and established companies allows her to provide tailored support that meets clients where they are and guides them through their next phase of development.​

Brooke has played a key role in some of the most complex business transformation projects within major global organisations. From operational restructuring to enterprise-wide systems change, she’s known for bringing structure, empathy, and forward momentum to the most challenging environments.

Whether it’s aligning cross-functional teams, managing business-critical systems shifts, or rethinking the way a company operates at scale, Brooke brings a rare blend of strategic thinking, operational rigour, and human insight to every transformation she leads.

Beyond her professional endeavors, Brooke is committed to fostering a culture of continuous learning and mentorship within the tech community. She believes that effective leadership is cultivated through experience, reflection, and a willingness to adapt. This philosophy underpins her work at Sullivan Collective, where she empowers leaders to build resilient, purpose-driven organisations.​