The investment arm of Telstra, Telstra Ventures, led investors in Whispir along with NSI Ventures, Rippledot Capital, private investors and Jeromy Wells, the chief executive and co-founder of Whispir.

The company says it will use the funds to build capacity as the company continues a rapid expansion in Asia and the United States, “further accelerating an already strong growth trajectory”.

In statement issued on Tuesday, the company says it has increased staff by 47% over the past 24 months, and sales across all regions are up by 55% as calculated on a monthly recurring basis

Wells says Whispir’s current expansion over the past 24 months has seen the global team grow from 46 to 86, including the appointment of Paul Bohannon, vice-president of Sales Australia. The Singapore business has added chief financial officer Gareth Roberts, and in the United States, Brant Williams, vice-president Americas, heads Whispir’s offices in Seattle and San Francisco.

According to Wells, the company’s offering extends well beyond offering “exceptional products and services”.

“Unlike most contemporary SaaS businesses, Whispir has a channel model, and it is the strength of Whispir’s alignment with its channels that results in a more capital-efficient business.

“Cost savings from efficiencies are one thing, and having the capability to mitigate risk for our customers is another, but the magic really happens when Whispir becomes the means by which our channels and end-user customers have new ways to generate new revenue streams – this is the most compelling value.

“Our business model just gets stronger and stronger every day, with our customers using Whispir to innovate within their businesses. CAaaS is a new category that we have defined and we anticipate that it will receive a lot of attention from the market over the next few years.”