Wilson Sonsini Sells Legal Technology Subsidiary SixFifty

Palo Alto, CA – July 29, 2025 – Wilson Sonsini Goodrich & Rosati, a leading law firm known for its work with technology and life sciences companies, has sold its legal technology subsidiary, SixFifty, marking a significant shift in its innovation strategy. The sale, announced this week, concludes a six-year venture into legal tech automation, with the buyer rumored to be global payroll systems manager Paychex, though no official confirmation has been disclosed.

SixFifty was established in 2019 under the leadership of Kimball Dean Parker, a former lawyer turned tech entrepreneur, to develop software that automates complex legal processes, such as compliance with privacy regulations and workplace safety standards. Its flagship product, SixFifty Privacy, assisted businesses in navigating the California Consumer Privacy Act (CCPA), while later tools addressed COVID-19 workplace compliance. The subsidiary aimed to combine Wilson Sonsini’s legal expertise with technology to make legal services more efficient and accessible.

The decision to sell SixFifty comes as Wilson Sonsini continues to focus on its core legal services and other in-house technology platforms, such as Neuron, which streamlines legal needs for startups, and WS-1, developed with Workiva to automate SEC Form S-1 filings for companies going public. Industry observers note that the sale may reflect a strategic pivot toward integrating technology directly into the firm’s legal practice rather than maintaining a separate tech subsidiary.

Wilson Sonsini has not released financial details of the transaction or outlined specific plans for future tech initiatives. The firm remains a powerhouse in representing tech giants and startups, with recent deals including advising Monumental Labs on an $8 million financing round and dYdX on its acquisition of Pocket Protector.