marketing agency for Australian technology, IT, industrial and professional service businesses.

What does it mean to be Ginormous?


Ginormous is the B2B marketing services brand of Open Trading Network Pty Ltd, a privately-held Australian company established in 2007.


We learn new things every day. Here are just some of the things we’re already very good at.


Social Media


Lead Generation

Graphic Design



Lead Nurturing



Google Suite



We are a hard-working, enthusiastic bunch. Welcome to our workspace. We’re excited you’re here. Allow us to introduce ourselves…

  • Melanie Williamson
    Melanie WilliamsonMarketing Consultant & Project Manager

    I was successfully working in B2B marketing management and traditional media before getting into e-marketing and digital media more than 10 years ago. Today we work across all channels in ways both devised and learned. What can’t be learned are the instincts of a hunter for marketing opportunities behind every rustle of a leaf, and the capacity for articulation and connection that’s derived from genuine passion and a deep understanding of needs. I formulated our company’s way of approaching B2B marketing, and part of this methodology is continually learning, testing and refining new ways to deliver even better results. I really love what we do.


  • Holly Whittaker
    Holly WhittakerPR Consultant & Social Media Manager

    Holly has more than 20 years’ experience in public relations and event management with an extensive client list including international companies United Distillers and Vintners, McDonalds, Nestlé, Levi Strauss, LEGO, and Ferrero. Holly has coordinated numerous corporate and public events such as the Bombay Sapphire Gin design awards, McHappy Day NSW and Nescafé Big Break awards, and the annual Bathurst V8 street festival. After ten years managing media relations for a leading university, Holly held a senior government role in tourism promotions management for a few years before joining the Ginormous B2B Marketing team. Holly works nationally across diverse accounts as a specialist in PR, social media promotion and audience growth strategies, and social media content development.

  • Nadya Stillmark
    Nadya StillmarkCorporate Design Specialist

    When Nadya Stillmark decided to decamp from the UK to Australia, the UK graphic design scene was left all the poorer. Nadya is a senior graphic designer and art director with 20 years’ experience in ad agencies and in-house environments. Strong conceptual and layout skills across corporate ID, brand implementation, brochures/guidelines, print/promos and web design to exhibitions, packaging and project management – such are the hallmarks of Stillmark. Cooler than iced Earl Grey tea, Nadya has great time and people-management skills, gives meticulous attention to detail, and can work to tight deadlines – no sweat. Nadya’s integration of strategic thinking with an enthusiasm for good design, and an understanding of marketing, synergises to produce innovative, creative and practical design solutions with real commercial value.

  • Tim Lumsdaine
    Tim LumsdaineVisual Communication Specialist

    Graphic designer, art director, photographer, pixel pusher and thinker extraordinaire, Tim Lumsdaine heads his own creative company and any opportunity for us to work together on a special project is something our people get tremendously excited about. There is nothing Tim doesn’t know about the geometry of design, philosophy of fonts, and science of colour (the latter being handy when you need an orange to print consistently on any inkjet printer, for example). A Renaissance man of the 21st century, ginormously-endowed with intelligence and creative energy, Tim whips in-and-out of a phone box to double as the photography director and image library manager for TEDxSydney. Tim is based in North Sydney and zaps between Sydney and Melbourne to work for major advertising agencies and corporate clients.


  • Ben Puse
    Ben PuseWeb Development Technician

    Ben (“Bembo”) is responsible for getting all the technical strings tied together when our creative web design concepts are brought to life. Bembo is an experienced PHP developer with a great technical command of the WordPress platform for content-driven website development (what we mostly recommend for very good reasons). Coding WordPress themes and e-marketing templates, doing server migrations and go-lives, skinning web services portals – Bembo helps us to produce both form and function.

  • Kate Villegas
    Kate VillegasProject Juggler & Administrator

    Kate earned a degree in community development and was set for life as a frontier worker in humanitarian aid. Taking a fill-in job with a Microsoft partner turned Kate’s career around, and so she went on to gain years of experience managing the execution of Microsoft-related marketing projects throughout Asia. At the centre of our Ginormous team, Kate demonstrates grace under pressure to keep all of our balls in the air, and coordinates the plethora of people, activities, resources and deadlines involved in our projects.

  • Pio Capito
    Pio CapitoDigital Artist & SEO/SEM/SMM Coordinator

    Pio combines activities on both left and right sides of the brain by doing graphic design, typography and image retouching in one hemisphere – and SEO and social media campaign execution in the other. Pio’s SEO skills were acquired post-Google Panda and Penguin so he had no unlearning of dark arts to do before joining Ginormous. Pio works with Mel, Holly, and Kate to coordinate SEO activities, and content marketing via social sharing and audience-building. It’s about getting the most juice out of everything.

  • Von C.
    Von C.Secret Agent (example)

    Von was a registered nurse before becoming interested in direct marketing and training with a US-based BPO organisation to achieve a string of performance awards and Six Sigma (Yellow Belt) certification. Experienced in data mining, lead generation and opportunity-nurturing for major technology brands such as Canon, Von brings his warm bedside manner and high standard of care to the initiation and development of relationships for one of our client organisations.

    • Perry R.
      Perry R.Secret Agent (example)

      Perry works full-time for a client organisation where he is known by his full name and ostensibly based in their offices. Starting out with an IT degree, Perry lived and worked in the USA for 11 years, mining and developing sales leads for giants in ERP technology like IBM, SAP and Oracle. Joining Ginormous to become a dedicated pre-sales agent in 2012, Perry acquired an Australian accent and brings qualified new business opportunities deep into the client organisation’s sales pipeline.

      • Mandy M.
        Mandy M.Agent Team Leader

        Mandy can undertake vertical-market sprints, and do the laundry for client-side sales teams by list-scrubbing. Need to identify target organisations in specific vertical markets, and deep-profile the appropriate contacts for your direct marketing effort? Take it all the way with demand-creation strategies, outbound comms, pre-sales process engineering, and pipeline development? Mandy means the capacity to jump-start the set-up and activation of our dedicated secret agents.


        • David Clare
          David ClareExpert Photographer

          David has over 20 years of lens-on experience in corporate communication photography for brochures, advertising and websites. Highly respected for his ability to combine natural and artificial light – a valuable skill when in-office shots are required – David shoots for blue-chip corporate clients like AGL, Telstra, Bank West, Savills, ING, and Minter Ellison, and government clients including the Department of Premier and Cabinet, the City of Sydney, Roads and Maritime Services, Destination NSW, and Tourism Australia. David also shoots events, launches and conferences – small or large (like Sydney’s mega Australia Day and New Year’s Eve celebrations). David works out of his studio in Crows Nest, in Sydney’s advertising precinct, from where he is readily deployed to locations anywhere in Australia.

        • Joe Arthur
          Joe ArthurDigital Illustration Expert

          Every blue moon or so, a marketing project calls for a breathtaking masterpiece of visual communication that’s beyond the most fantastic imagination of any mere mortal, and that’s when we call upon Joe Arthur. Almost as enigmatic in real-life as the timeless souls of his digitally-collaged wonderlands, Joe was taught by wolves. If you happen to know Joe, that’s not as far-fetched as it sounds. In real-life Joe hails from Sydney’s northern beaches via the recording studios of LA and the jungles of Borneo.

        • Marianne Ritter
          Marianne RitterPromotional Products Expert

          Marianne Ritter is something of a grande dame in the Australian embroidery and screen-printing industry, having made her reputation over decades in the music business, producing tour jackets and branded paraphernalia for a very long list of superstars including the Rolling Stones, Pink, and (the late great) Prince. Such stellar credits in the production of branded merchandising has led to the production of logo-branded corporate clothing and a vast array of promotional items for image-conscious companies like Red Bull, Westpac, Harvey World Travel, Max Factor, Sony, and Dom Perignon. Dutch by birth and an engineer by qualification, Marianne combines a flair for fashion and design with immense technical know-how. Go to Marianne for outside-the-box merchandise ideas, and branding even the trickiest items.

        • David Ferguson
          David FergusonHosting Expert

          Across the whole world, web hosting is a largely faceless and thankless area of service provision. That’s where David Ferguson stands right out in the crowd. We often say that he is the world’s most personable and responsive hosting provider. If you ever have a question or need something done, you can get David in-person on the phone and he can well-nigh smother you with service. Over the years we have recommended David to numerous client organisations needing hosting for websites, online stores, email systems, domain names, and more. Of all the many organisations following our referral through to using David’s services, none have subsequently left, which says it all really.

        • Shane Maguire
          Shane MaguireExpert Journalist

          Rumours of Shane Maguire’s total retirement from journalism have been slightly exaggerated. Best-known for his heartbeat-by-heartbeat reporting on Lindy Chamberlain’s Northern Territory murder trial, and ultimately-wrongful conviction, Shane went on to become chief-of-staff at the Daily Mirror and later chief-of-staff at the TV current affairs show Willessee. Marriage to the celebrated South Australian couture designer, Amanda Dreyer, saw Shane settling in, um, Adelaide. Telecommuting has allowed him to become the ghost-writer of choice when many an Australian business mogul wants to have their life story told while they’re still around to enjoy it (and claim the credit).


        You can tell a lot about people by the company they keep.



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