Byron offers an AI agent platform designed to automate manual workflows in business tax preparation for certified public accountant (CPA) firms. It integrates with systems CPAs already use and can automatically roll forward prior-year returns and work papers into a current-year Excel workbook. Each stage of the tax-prep pipeline is handled by a dedicated AI agent trained for that specific task. The company was founded by Blaze O’Byrne and is based in San Francisco. Its team includes AI and accounting experts from Amazon’s artificial general intelligence group and Deloitte. Byron recently raised a USD6.5 million (reported as $9.1 million) seed round led by Square Peg with participation from Sorenson Capital, Liquid2 Ventures and Correlation Ventures.

Total raised

$7M

Funding rounds

1

Latest round

Seed

Latest activity

May 2026