The
Sequana
Story.

The <br>Sequana <br>Story

Founded in 2019, Sequana has grown rapidly to become one of the country’s fastest-growing firms, supported by more than 90 experts and a network of over 300 contractors across every major city.

Sequana-projects-LMW-Channel-Drone

Backed by Pemba Capital Partners, Sequana combines the scale and agility needed to deliver complex, high-impact projects.

Sequana’s strength lies in deep industry knowledge, a hands-on understanding of client challenges, and the ability to navigate every phase of the infrastructure lifecycle. From major desalination initiatives to some of Australia’s most intricate environmental programs, Sequana is driving the delivery of infrastructure that matters.

We truly partner with water, environment and energy organisations to develop better outcomes for our clients, communities and the environment.

As Australia transitions to a net-zero future, Sequana is proud to help its clients navigate change, overcome systemic challenges, and seize opportunities to leave a lasting legacy of innovation, sustainability, and community benefit.

INTEGRATED SERVICES, SEAMLESS DELIVERY, REAL IMPACT

Sequana offers an unmatched blend of strategic advice, leadership, and hands-on delivery across the full infrastructure lifecycle. Bringing clarity, momentum, and expertise to complex projects — delivering value at every stage of the infrastructure journey. Sequana’s full-service model bridges the gap between strategy and delivery, enabling clients to move from early planning through to execution and long-term asset management with confidence and continuity.

Sequana’s unique edge lies in its real-world project experience and public sector understanding. Many of the team have worked inside the organisations Sequana now advises — equipping them with the foresight and understanding to manage risk and deliver value.

Sequana Water Projects Albury_Hume Dam

Sequana Timeline

November 2019

Sequana Partners founded

Sequana Partners founded in 2019 by Mike Walsh and Frank Fisseler

November 2019

First offices open in Melbourne and Sydney

Sequana Partners opens its first office locations in Melbourne and Sydney

December 2019

First client in QLD

January 2020

First client in VIC

January 2020

Queensland office opens

November 2020

First ISO certification

May 2022

Sequana Future Leaders Forum established

May 2022

Sequana Cultural Onboarding established

July 2022

First client in NSW

November 2022

Board approved Social Procurement Policy

November 2022

Board approved Diversity, Equity & Inclusion Policy

December 2022

First client in WA

January 2023

First client in SA

February 2023

Sequana expands into Energy & Decarbonisation

May 2023

Great Place to Work Certification

Sequana Partners is certified as a Great Place to Work

June 2023

First client in Tasmania

June 2023

Innovation Open Door sessions established

August 2023

Sequana Talent Acquisition Function Launched

September 2023

Darebin Falcons Partnership

Sequana Partners partners with Darebin Falcons

October 2023

50 employees

Sequana Partners reaches 50 employees

November 2023

Sequana Academy launched

Sequana’s signature career development pathway launched

January 2024

Sequana Partners rebrands to Sequana, complete with refreshed logo, branding and website to reflect growth of the business

May 2024

Great Place to Work Certification

Sequana is re-certified as a Great Place to Work

August 2024

80 employees

Sequana reaches 80 employees

September 2024

Pemba partnership

Sequana announces strategic partnership with Pemba Capital Partners

January 2025

Sequana expands its Environment & Planning offering

Continuing its focus on providing a holistic approach to water and energy projects, Sequana is enhancing its existing services and supporting positive environmental impact.

June 2025

Sequana partners with Atlas and IPS

Bringing together Sequana’s strategic, commercial, and project management expertise, Atlas’s deep technical and engineering capability, and IPS’s hands-on complex infrastructure, construction and delivery experience, creating a team of almost 200 professionals delivering end-to-end infrastructure solutions spanning the entire asset lifecycle, from strategy and planning to design, delivery, and long-term asset management.

A story starting almost 16 years ago …

Sequana was born from a partnership forged in 2008, when founders Mike Walsh and Frank Fisseler worked together on the $3.6 billion Victorian Desalination Project—one of the world’s largest water infrastructure initiatives. Their shared vision, complementary strengths, and trusted collaboration laid the foundation for what Sequana is today: a bold leader in shaping Australia’s water and environment future. 

Filling Big Shoes

After Mike left to pursue other opportunities, he became Project Director for the Sunraysia (Irrigation) Modernisation Project (SMP) in Mildura which he planned and kicked off, and after keeping in touch with Frank over many fun BBQs and get-togethers at their respective homes, when Mike decided to step away from the SMP Project, he knew there was no one better for the job, than Frank. 

Frank stepped in and became Project Director for 1.5 years, delivering the project on time and on budget. Together they worked closely in the handover period which Mike masterfully planned, and he stayed on as a mentor and advisor whenever Frank needed support. 

The Turning Point: Connections Project

The Connections Project was the spark that ignited Sequana. Mike Walsh, appointed special advisor to then-Victorian Water Minister Lisa Neville, led a bold reset strategy for the struggling project—offering sharp governance insights and a clear path forward. 

Teaming up again, Mike and Frank combined strategic vision with hands-on delivery expertise. Together, they turned a faltering program into a benchmark for success—on time, on budget, and re-energised. 

Their collaboration on Connections proved the power of aligned leadership, mutual respect, and a relentless drive to deliver. This is a testament to the power of teamwork and diverse expertise in achieving extraordinary outcomes. It set the blueprint for what Sequana would become. 

Creating Success

Mike and Frank’s partnership is built on leveraging complementary strengths to achieve remarkable outcomes. Mike’s strategic insight and expertise in turning around distressed projects, paired with Frank’s operational excellence and hands-on management, created a powerful dynamic. 

Sequana’s foundation is built on excellence, resilience, and the relentless pursuit of overcoming challenges. With a focus on the best talent and a shared ambition, we help clients in the water sector achieve the seemingly impossible through exceptional people and innovative solutions. 

Sequana_Group-Portrait

The foundation of Sequana is built on a relentless pursuit of excellence and the spirit of overcoming challenges.

With a philosophy centred on ambition, resilience, camaraderie, and an unceasing desire to push beyond limits, achieving seemingly insurmountable goals is a significant driver and success factor behind Sequana.

Sequana is a business that stands out through its focus on the best talent. All employees work together towards the common goal of helping clients in the water, environment and energy sectors successfully deliver complex projects and be represented by exceptional people.

Rooted in water, inspired by culture

Sequana was born over a fire pit when Mike and Frank were brainstorming about their new business venture that was going to do things differently, that would be centred on people, culture and community. 

Sequana means goddess of the river Seine, and with its link to water, reflects Mike and Frank’s passion for art, history and culture, adding their signature quirky touch to the water industry. 

Our Clients
© Copyright 2025 Sequana | All Rights Reserved |
Site by Intervision Design