Trusted advisors -
before, during and after.

What drives us

Yes!

It’s the most welcome word in sales.

Here’s why.

It is more than just an answer - it’s momentum and in turn confirmation. Every “yes” received builds trust, unlocks potential, and forges a relationship where value is exchanged willingly.

For three decades, we have been dedicated to helping our clients earn more 'yeses' and generate superior value, delivering outstanding sales results that are both ethical and sustainable.

Mission

Our mission is to develop high performance sales teams that consistently deliver outstanding sales results.

Vision

Our vision is to be the first phone call when sales leaders are looking for a trusted specialist to:

                  Build capability

                  Inspire hearts and minds

                  Grow people to deliver superior results

It’s a BIG idea that has served us well for three decades, with many client relationships exceeding ten years in duration, involving multiple projects and engagements with different businesses.

Values

We are guided by our values when engaging with our clients, suppliers and the community.

Quality

We strive to deliver class-leading solutions, experiences and communication at every touchpoint in our value chain.

Flexibility

We champion the value of tailoring solutions to different markets, channels, cultures and competence, as it pays significant dividends in efficacy and return on investment.

Ethics

We hold ourselves to high standards in business practices, professional dealings and regulatory requirements. Doing the right thing by our clients, suppliers and team members is the only way.

Empathy

We work hard to listen and observe before responding. We recognise that others may have a different view of the world that we will seek to understand and respect. This attitude builds stronger connections.

Trust

We know trust is an outcome of delivering against the other four values, consistently and transparently, over time. It is hard won and easily lost.

Our practice in driving sales performance is not fixed nor rigid.

  • We work locally and offshore.

  • We work with sales teams who manufacture, import, distribute, resell or retail products and/or services

  • We offer solutions to develop all strata of a sales team, no matter the channel

  • We are flexible in how we engage

  • We tailor our solutions so they work

The consistent feedback we get is that ”it’s as if you work here.” We pride ourselves on this compliment as it shows we listen, we tailor, we engage.

Meet the Team

  • Simon Dethridge

    MANAGING DIRECTOR

    Simon is the founder and managing consultant of BIG Consulting. He leads the business from the Melbourne Head Office.​

    After graduating with an Economics degree from Monash University, Simon held senior sales and general management roles in the finance, publishing and footwear industries.​

    Since founding the business as a 30 year old, Simon has spent the next 30 years consulting to leading brands around the globe. ​

    Besides the variety and continuous learning, he is most passionate about seeing people grow and progressing in their careers.​

    Outside of work, Simon relishes time with his wife and three adult children. His interests include travel, cycling, golf and backcountry skiing. ​

  • Chris Costandi

    SENIOR CONSULTANT

    Chris leads our Sydney office and has been a valuable member of the team, for more than a decade.​

    With 25 years of experience in senior commercial roles spanning both the FMCG and Pharmaceutical industries, he brings a wealth of real-world insight, commercial acumen, and practical experience to every engagement.​

    For our clients, Chris prides himself on being a trusted advisor and one that is not only valued for his subject matter expertise, but also for his ability to engage teams at all levels of the organisation, foster buy-in, and drive sustainable change.​

    Outside of work, Chris can be found on Sydney Harbour, where he is heavily involved in the sailing community, volunteering regularly and supporting his two sons compete in sailing regattas around the globe.​

  • Fiona Wong

    CLIENT SERVICES MANAGER

    Fiona leads our client service delivery to ensure all touchpoints with BIG are efficient, precise and helpful.​

    From initial onboarding to post project follow up, Fiona has a warm approach to every aspect of service delivery and high attention to detail in everything she touches.​

    From document creation to program logistics, you will experience a professional at work as she supports both clients and consultants to deliver the magic.​

    Fiona is an intrepid adventurer who enjoys the wonder of travel that feeds her spirit. A love of yoga and meditation keeps her in great health.​

    ​The BIG team and our valued suppliers are so grateful for her great work.​

  • Netasha Gooding

    FINANCE MANAGER

    Netasha manages the financial function for the Business Improvement Group, leveraging her extensive business experience in more than just bookkeeping.​

    She is a former Partner, Director and business owner of successful recruitment firms, a Digital Creative Agency and a consulting business. ​

    Netasha possesses over twenty years of general management experience. She has significant knowledge not only around human resources and sales, but is also skilled in financial management, strategy development/deployment and stakeholder development. ​

    Netasha is a valued member of our team for her advice, care and unwavering support.​

    ​She is very active in her community as a volunteer and enjoys time with family and friends.

  • "The sales training that Simon facilitates is incredibly engaging and packed with practical insights that are directly relevant to today’s competitive market. The Bostik team walked away with actionable strategies we are implementing immediately to drive results"

    Travis Reddaway, Bostik Australia

  • “Simon’s easy approach, openness to ideas, sales knowledge, and process were very well received, and we would highly recommend BIG Consulting to any company in any selling market.”  

    Richard Lewis, Iron Capital

  • “We have been collaborating with BIG Consulting for over 8 years now, and their approach has consistently provided the structure and support our sales team needs to ensure growth. Simon's presentation style stands out. This hands-on approach, combined with his use of current products and programs in his teachings, ensures relevance for our team and is truly best-in-class”

    Matt Sullivan, Callaway Golf ANZ

  • “We could not be happier with the training and resulting method that Simon and his team delivered. Most pleasing is that 18 months on we are still using the coaching methods BIG Consulting provided us with, which we believe we could not have got from an 'off the shelf' solution.”

    Anne Wright, ANZUK Education

  • “Simon brings a wealth of business expertise and a real talent for developing both individuals and teams. He’s helped us strengthen key capabilities like Customer Interaction, Communication, Building Trust and Rapport, Selling Skills, Business Planning, and Negotiation. What truly sets Simon apart is how he tailors content to our industry”

    Robin Payne, Mattel ANZ