Stone Ridge Ventures

Venture capital managers Rob Newman and Matt Callahan have completed a major restructuring and expansion of their Perth business, which has about $60 million under management.

Tech entrepreneur Rob Newman and company director Ian Olson are leading the latest backdoor listing on the ASX, with their spatial data service Pointerra to join the exchange through a reverse takeover of Soil Sub Technologies.

The surge in backdoor listings on the ASX hit new highs in the September quarter and is attracting more entrepreneurs with Silicon Valley experience.

Young medical entrepreneur Michael Winlo has returned from New York with plans to expand a unique clinical testing business in Nedlands.