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Paychex acquires SixFifty from Wilson Sonsini

Jul 30, 2025•5 months ago

Acquiring Company

Paychex

Acquired Company

SixFifty Technologies

RochesterUtahHuman ResourcesFinancial ServicesLegal TechLegalInformation TechnologySoftware

Description

The payroll and HR company Paychex has acquired the legal tech company SixFifty, which was previously a subsidiary of Wilson Sonsini Goodrich & Rosati. The acquisition details were confirmed through corporate documents. The law firm announced the deal after it had closed earlier this year in May.

Company Information

Company

Paychex

Location

Rochester, New York, United States

About

PayChex is an industry-leading human capital management company delivering a full suite of technology and advisory solutions in human resources, employee benefit solutions, insurance, and payroll processing. It serves approximately 800,000 clients across the U.S. and parts of Europe. The company is publicly traded and is known for its extensive payroll services.

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M&A Insights

Based on deal data
Integration timeline
70% of M&A integrations take 12-24 months to complete
Tech stack consolidation
83% of merged companies consolidate technology vendors within first year
Post-acquisition investment
Companies increase IT spending by 23% on average after acquisitions
Success factor
M&A deals with strong technology integration plans are 2.5x more likely to succeed