Decisive Publishing was founded in Sydney in 1994 by two then-25-year-old entrepreneur-journalists, Grahame Lynch and Jeremy Grigg. Operating out of a one-room office in Sydney's Chinatown, Decisive launched what was then an innovative product for Australia's duopolistic telecom sector, a two-page daily fax newsletter about all matters telecom called Communications Day.

Twelve years later, Communications Day is still going strong, regarded by many as the bible of Australia's telecom industry and boasting a subscriber list that reads like a who's who of the industry. Now Communications Day is six to nine pages and no readers receive it by fax anymore – Acrobat PDF is now the preferred delivery medium for all. In turn, it has become one of the world's most successful Internet-only publications.

For most of these years, Communications Day has been produced under the watchful eye of Natalie Apostolou, now ably complemented by former Telecom TV journalist Tim Marshall. Communications Day has been awarded three times - twice by the Australian Telecommunications Users' Group and once by SPAN.

Following Grahame Lynch's move to Hong Kong, then Los Angeles and then back to Asia, Decisive has set its sights farther afield. In 2001, Decisive launched CommsDayAsia - later to become CommsDay Global, which have also attracted loyal and influential subscribers across Asia, America and Europe. Decisive now employs one of the largest dedicated telecom media teams in the world – six journalists in three continents - Australia, Asia and North America - as well as accessing the European content of two dedicated writers working for TelecomTV.com based in London.

Decisive has also diversified into conferences, with its annual Sydney summit in its fifth year.