Each member of the Wine Network Team is a highly respected professional with extensive experience in their selected field, making Wine Networking Consulting one of the most recognised, regarded, and valuable resources for the Wine Industry both in Australia, and internationally.

Gary Baldwin

Director & Principal Consultant

With university qualifications in biochemistry and wine science and many years experience in senior winemaking and management roles, wine-show judging, wine research and extension, Gary is one of Australia’s most respected wine professionals.

As a Director and Senior consultant of WNC since 1994, Gary travels domestically and internationally, providing technical advice on all aspects of wine production, and remaining up to date with worldwide winemaking trends and viticultural issues.

Mark O’Callaghan

Director & Senior Consultant

Mark joined WNC as a Director and Consultant in 2013 after two years working independently. He works on projects across Australia and around the world including China and England.

Prior to this, Mark spent fourteen years with Accolade Wines (formerly BRL Hardy), including eight years as Senior Winemaker and Winery Manager for Yarra Burn. In addition to the Yarra Valley during that period, Mark made wines in McLaren Vale, Heathcote, Great Western and the Pyrenees, plus vintages in Austria and Sicily.

Mark is President of the Yarra Valley Wine Growers’ Association, a regular wine show judge at both capital city and regional shows, member of the Victorian Pinot Noir Workshop Committee and former Chair of the Committee for the Yarra Valley Wine Show and James Halliday Chardonnay Challenge. He was also a Scholar at the 2007 Len Evans Tutorial.

Mark holds a Bachelor of Applied Science (Wine Science) from Charles Sturt University and a Bachelor of Science from Monash University. In his spare time, works on his MBA, is learning Chinese, plays guitar in a wine industry rock band and runs his own small wine label.



Jian joined WNC as a consultant in 2014, after being one of the very few Chinese students to complete a Bachelor of Viticulture and Oenology at The University of Adelaide.

Jian has well-rounded cellar experience in both Australian and Chinese wineries and brings unique insights into both wine cultures. For example, Jian worked as a translator and host for Chinese VIP guests during Savour, 2013, managing the technical language for winery and vineyard visits around South Australia with great clarity.

At present, he is working on some exciting vineyard development projects and says his biggest surprise since moving to Australia is its pinot noir – something with great potential for the Chinese dinner table.

He is a great asset, especially to our Chinese clients in both countries.


James Gosper

Global Winemaking, Marketing

Deep knowledge in the Australian Wine Industry total of 24 years (Retail: 3 years wine retail, 14 years winemaking and production, and 9 years in brand/category marketing.)

Senior executive positions held in marketing and winemaking/production, with thorough understanding of global wine markets.

Specialties: People and team management, brand strategy and positioning, wine export strategy, communication, global wine brand marketing, winemaking/production.

Roger Bailey

Engineering Design, Operational Manager, Project Management

Roger is a professional engineer with more than 20 years experience in the brewing industry.

He adds high-level skill to Wine Network Consulting capabilities, and specialises in winery design and construction from concept to full operation, the design, installation and operational improvement of site services, supply chain management, and the development and implementation of management, safety, HR, maintenance and quality systems.

Nicole Esdaile

Winemaking, Wine Business

Nicole been associated with WNC since 2009; is a qualified pharmacist & winemaker; and has extensive production, strategic, operational and business management experience.

Nicole has been broadly involved in the Australian Wine Industry for almost 20 years, holding senior winemaking & management positions at Capel Vale wines in WA, Rutherglen Estates in Rutherglen, Victoria and most recently Coombe Farm in the Yarra Valley.

She is an experienced wine show judge and sits on several Wine Industry Boards & Committees.

Peter Hayes

Education, Training, R&D Investment and Management

Mr Peter Hayes has extensive experience across education and training, R&D investment and management, viticultural operations, irrigation sector and government and industry affairs in a 30+ year career in the wine industry.

Mr Hayes is a society ‘fellow’ of the ASVO, a title given to members who have made a particularly outstanding and meritorious contribution to the grape and wine industry. The criteria for this award include making a major contribution in an industry, scientific, educational or Society role and having been a member of the Society for at least 10 years.

Dr David Jordan

Viticultural Scientist

Dr David Jordan is a Viticultural Scientist. He has a Doctorate (PhD) in Viticulture from Oregon State University, USA and an Honours degree in Horticultural Science from Lincoln University, New Zealand.

He has developed significant commercial experience during his involvement in the international grape and wine industry since 1983, and established his consultancy business Vine to Wine to Market in 1994.

Based in New Zealand, David consults to many wineries, vineyards and wine businesses in Australia and internationally.

Stuart Proud

Viticulture & Biological Farming

Stuart Proud has experience in all practical, technical and managerial roles within the viticulture industry since 1995.

He is able to provide advice on all areas ranging from vineyard establishment through to financial budgeting and management of mature vineyards. There is strong focus on quality improvements which adds value to clients produce and enterprises.

Proud Ag works with agriculture, horticulture, viticulture & turf industries on implementing biological and sustainable soil management programs. Proud Ag provides workshops, education and practical on farm advice which enables producers and land managers to achieve long term sustainability for soils and their business.

The objective of Proud Ag is to achieve maximum health and production from the soil using natural inputs and minimising the need for synthetic fertilisers and chemicals. Clients throughout Victoria, Tasmania & South Australia.


Founded in 1994, WNC brings decades of winemaking, viticulture and business experience to its projects around Australia and the world. From its original base in Hawthorn, to today’s office in the heart of the Yarra Valley WNC has always held a forward-looking, global view of the wine world.

Its projects continue to take the team far and wide, and have included locations as diverse as China, India, England, Japan, New Zealand, Vietnam, Turkey and Thailand.