Transformation that Sticks
Built Here in Australia

We help organisations lead change from the inside out. People-first. Culture-led. Capability-driven.

Sisima Australia is part of a regional network committed to doing change differently. Based locally and working nationally, we bring the full force of The Sisima Way to clients across industries who are ready to lead meaningful transformation — and make it stick.

We don’t believe in change for change’s sake. We believe in capability that lasts, systems that serve people, and leadership that shows up.

What We Do

Sisima Australia is part of a regional transformation consultancy working across APAC, but our roots are right here. We work with Australian organisations who want more than lip-service change.

We support leaders to deliver outcomes, build capability, and lead transformation that doesn’t fade once the project ends.

Project, change, and process expertise
Cultural alignment, not just delivery
Human-centred, rhythm-based ways of working

Empowering Progress

We're proud to partner with Projectworks, a smart, human-centred platform that helps organisations turn invisible work into visible progress.

Whether you're managing resourcing, tracking time, or aligning teams, Projectworks makes the work visible — so leaders can lead with data, not guesswork.

But as we know: tech doesn’t drive culture, culture drives how tech is used. That’s why we support our clients to not only adopt tools like Projectworks, but to embed them through safe, transparent and rhythm-based ways of working.

Meet The Team

Dave Lester

Chief Executive Officer

As a strong advocate for Partnering, collaborating and the pursuit for a better world, he is a goal driven solution developer who believes in an inclusive outcome.

"Change cannot happen in isolation, and I know that change can be scary. I work in partnership and to create a network of people and businesses that together bring infinite opportunities. A network that champions and embraces new ways of working."

Jonathan Borowski

Change Management Consultant

I’m a Change Management Consultant at Sisima Group, helping businesses navigate transformation with a practical, people-first approach.

Certified in Prosci Change Management, I focus on aligning teams and processes for lasting success. I also promote and resell Projectworks, supporting clients with smart tools for managing projects and growth.

Work With Us

At Sisima Australia, we focus on what matters most, people who believe in the change.

We:

Build tribes, not just teams
Lead from the inside out, not the top down
Help change land, not just launch

From regional infrastructure projects to corporate system rollouts, our focus is helping organisations unlock the one thing that makes all the difference: belief that change is possible, and worth it.

Let’s Talk

Whether you're planning your next transformation or already knee-deep in one — let’s connect.

Because real change doesn’t come from posters or PowerPoint.
It comes from leadership, clarity, and people who care.

And that’s what we do.