A bitter corporate espionage battle between two of Silicon Valley’s most valuable HR tech start-ups has escalated sharply, with Deel accusing rival Rippling of infiltrating its systems and stealing proprietary information — the latest salvo in a high-stakes legal war now unfolding on both U.S. and international fronts.
According to new legal filings seen by the Financial Times, Deel alleges that Rippling orchestrated a months-long campaign of corporate subterfuge, during which an employee posed as a customer to illegally access confidential business data. The employee, identified as Rippling’s “competitive intelligence manager” Brett Alexander Johnson, is accused of extracting sensitive details from Deel’s customer platform — intelligence that Deel claims was used to develop a competing product.
“Rippling has been actively engaged in a carefully coordinated espionage campaign,” Deel claims in the amended lawsuit filed Tuesday in Delaware. The company, valued at $12 billion and backed by venture capital giants including Andreessen Horowitz, Altimeter Capital, and General Catalyst, says its investigation is still in early stages but alleges it already has “unequivocal proof” of Rippling’s misconduct.
Rippling, valued at $16.8 billion and supported by investors such as Founders Fund, Baillie Gifford, and GIC, initially sparked the conflict in March when it accused Deel of hiring one of its employees, Keith O’Brien, to act as a spy. According to Rippling’s original suit, O’Brien admitted under oath to destroying his phone with an axe and disposing of it in a drain after being confronted — a claim that drew widespread attention and fueled intrigue across the tech sector.
Deel has dismissed those allegations as defamatory and retaliatory, arguing in court that O’Brien was in fact a whistleblower disturbed by internal practices at Rippling, and that his statements were made under duress. The Delaware filing is part of Deel’s broader legal strategy, which includes motions to dismiss Rippling’s California lawsuit and transfer proceedings to Ireland.
Deel further alleges that Rippling’s CEO Parker Conrad directly encouraged the espionage effort in an attempt to uncover “the secrets by which Deel has achieved years of profitability.”
In a statement earlier this year, Rippling’s legal counsel Alex Spiro accused Deel’s leadership of orchestrating “a brazen corporate espionage scheme,” pledging that those involved would be held accountable. Rippling has yet to respond to the latest round of accusations.
The legal crossfire exposes the fierce and personal rivalry between the two San Francisco-based unicorns, whose rapid growth in the HR software sector has attracted billions in funding and intense scrutiny. The conflict, now involving multiple jurisdictions and high-powered legal teams, could reshape how Silicon Valley startups compete — and where the ethical lines are drawn in their race for dominance.
