The Experience

Diversity, innovation, and creativity across every layer of hospitality define how we operate. Combined with lateral thinking, these principles have enabled us to achieve what others in the industry have not.

ONLY THE BEST KNOWLEDGE IS POWERFUL

1

We Achieved What Others Couldn’t

Hospitality Expertise of Peter Petroulas

Peter Petroulas served as CEO of the GPO Grand Group in the heart of Sydney CBD from 2002 to 2020, until operations ceased due to the COVID-19 pandemic. Under his leadership, the group became the world’s first fully integrated drink, dine, and entertainment complex independent of any casino environment.

Located within the iconic Sydney GPO Building, the venue spanned over 3,300 square meters and housed 15 distinct concepts. Each venue delivered a premium yet welcoming experience, combining luxury with accessibility.

The success of this unified hospitality model set a new industry benchmark. Its excellence was recognized through multiple awards from the Restaurant & Catering Industry Association, including:

  • Best Steak Restaurant (Prime Restaurant) – Multiple years including national wins
  • Best Italian Restaurant (Intermezzo Ristorante)
  • Best Seafood Restaurant (Post Seafood Restaurant)
  • Best Spanish & Tapas Restaurant (Postales Restaurante)
  • Best Wine List
  • Best Specialty Restaurant (GPO Cheese & Wine Room)
  • Best Beer Café / Wine Bar (National Winner)
  • Best Coffee & Tea House (Maximus Café)

In total, the group secured 32 major awards across 9 categories, reinforcing its leadership in hospitality innovation.

Beyond awards, the group pioneered several “world-first” concepts, including:

  • A steakhouse offering exclusively premium cuts
  • A fully meat-based degustation experience
  • The introduction of the fondue burger board

It also created Sydney’s longest-running cabaret show, Crystal Boudoir, which operated successfully for 13 consecutive years.

Peter’s experience extends beyond success into resilience. He led operations through the Global Financial Crisis, major city infrastructure disruptions like the Sydney Light Rail project, and ongoing industry challenges such as staffing, training, quality control, and operational efficiency. His expertise spans every aspect of hospitality operations.

2

Why Do Peter and His Team Think Differently?

After 20 years of pushing the hospitality envelope, being “different” is in our DNA

After more than two decades of redefining hospitality, thinking differently is embedded in our DNA.

Each venue within the GPO Grand Group was designed as a completely unique concept. From recruitment strategies to menu design and procurement, every element was tailored individually, allowing each space to develop its own identity, energy, and customer experience.

The diversity of offerings ranged across:

  • Fine dining
  • Casual dining
  • Quick-service outlets
  • Bars and nightlife venues
  • Cabaret and live entertainment

Every detail was carefully orchestrated to ensure operational precision and a seamless guest experience.

A defining feature of the group was its adaptability. All 15 venues could be transformed within two hours into a single, unified event space accommodating up to 1,600 guests. Remarkably, the system allowed all guests to be checked in, seated, and served their first food and drink within just 15 minutes.

This level of flexibility, efficiency, and scale remains unmatched.

Peter also played a key role in designing commercial kitchens, dining layouts, and entertainment spaces, optimizing both aesthetics and functionality. His deep understanding of spatial design continues to influence how environments are structured for performance and experience.

The philosophy of “thinking different” that shaped the GPO Grand Group is now embedded into WizButler.

3

Meet the Team

  • Peter Petroulas, Inventor, founder, CEO
  • Paul de Wit, CTO
  • CD Song, Co-Founder