Management Consultants

Empowering Our Clients
to Seize Opportunity from Change

Specialising In

Change & Transformation


Aviation & Airlines


Industrial Relations


Trusted Advisory


Training, Coaching & Mentoring

Because you Need

your Change Programs

to Work

first time, every time

We are specialist Change and Transformation management consultants.

 We have the experience, qualification, and methodologies, developed over decades by the global leaders in change and transformation, to empower you to consistently achieve successful and sustainable change programs.

Play Video about Barry Eustance CMgr MCMI Principal Consultant with The Sixsess Consultancy in a black branded polo against a teal background with CMI and Kotter Certifications

A Personal Welcome from

Barry Eustance CMgr MCMI

Principal Consultant

(please click on the start icon on the image above)

Barry Eustance CMgr MCMIThe Sixsess Consultancy’s Principal Consultant (a former long-haul airline captain) is interviewed by the BBC for his hands-on operational perspective on what may have occurred during the Singapore Airlines flight that entered severe turbulence, and his thoughts arising from his analysis of the event.

Barry Eustance CMgr MCMIThe Sixsess Consultancy’s Principal Consultant presents at the 2024 Long Term Strategy Conference answering the following question:

You want to introduce a game-changing strategy to your company, but the fact that it’s not an easy quick-fix is a problem. Some executives are stuck in the past, defending ‘the way we do things around here.’ You need to get past them, but what steps can you take?

Barry joins a roster of outstanding and leading global strategic thought leaders presenting at the 2024 conference

Image courtesy of Airbus

Barry Eustance CMgr MCMIThe Sixsess Consultancy’s Principal Consultant contributes to

Bloomberg Global’s article “Airbus Is Soaring at Boeing’s Expense”:

“While the time scale may slip slightly, Airbus has a very clear perspective on where they see the industry going and have the ability to set the standard,” says Barry Eustance, a former airline pilot who’s now an aviation industry consultant. “They don’t need to take shortcuts or risks, and can take their time testing and maturing the technology.”

Why Choose Us?

Our Rock Solid experience

Kotter Change Leader Certified

Chartered by the Chartered Management Institute (CMgr MCMI)

CMI Qualified in Professional Consulting at Master's Level

Decades of hands-on leadership and global operating experience.

A track-record of negotiating at the highest level, and delivering extremely high value results

We are frequent live commentators for global broadcast and news media, including the BBC and Bloomberg, who value the specialist expertise we provide for their audiences.

Our Commitment to You

We keep our lines of communications short

You want answers

We're here to provide them

Our commitment to you extends beyond the assignment

We build long-term relationships based upon trust, communication and bespoke delivery

Please see our About page for details of our zero-fee client evaluation and our fixed-priced contract fees

Our World Class team

Every client requirement is different

We don't believe in "one size fits all"

We have a team of world class strategic partners who work with us to deliver outstanding value to you

Bespoke means bespoke


Barry Eustance CMgr MCMI Profile image in black polo with The Sixsess Consultancy Logo in a fawn background
Barry Eustance CMgr MCMI

Ready to Seize Opportunity From Change?

Please Contact Me Now
for A Complementary Consultation

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