How Do You Sell Software to an Industry That Won't Change? Mitchell Baker on Claimstack

Day One® · Jul 28, 2026 · 22m

$320 billion flows through Australia's commercial construction industry every year — and far too much of it still moves on spreadsheets and re-keyed purchase orders. Mitchell Baker spent 12 years inside that machine as a contract administrator — on John Holland's $250M shopping-centre rebuild, and on Facebook's £150M London HQ with Kier — watching well-paid people burn their days copying data that already existed.

So he built Claimstack, a workflow platform that follows the money from tender to final account across the whole contractor chain. In this special Melbourne edition of Pick My…