OpenAI Revenue Chief Denise Dresser Resigns as Executive Turnover Mounts Ahead of IPO

OpenAI announced Thursday that Chief Revenue Officer Denise Dresser is stepping down less than a year after taking the position, adding to a string of high-profile leadership exits as the artificial intelligence developer prepares for a potential initial public offering.

Dresser is departing "to pursue other opportunities," the company stated in a release first reported by CNBC Business. OpenAI has appointed Dali Rajic, who previously served as president and chief operating officer at cybersecurity firm Wiz, to succeed her. Dresser will remain temporarily to assist with the leadership handoff, noting on LinkedIn that she has been coordinating with OpenAI President Greg Brockman to facilitate a smooth transfer of responsibilities.

Writing on LinkedIn on Thursday, Dresser called the experience of working with AI technology "nothing short of incredible" and expressed gratitude to her team, stating, "I am so proud of what we have accomplished and, even more, of how this team has shown up for our customers and one another."

The departure comes just days after long-tenured executive Brad Lightcap declared his exit on Tuesday, writing on X that he intends to "start something new." Lightcap spent eight years at OpenAI and maintained a close working relationship with Chief Executive Officer Sam Altman. Dresser had previously assumed many of Lightcap’s operational duties in April when he shifted into a role focused on "special projects."

Dresser joined the company in December following more than a decade as an executive at Salesforce. Her enterprise software expertise was considered pivotal for OpenAI's commercial push, particularly as the startup competes aggressively against rival Anthropic for corporate contracts.

Her resignation follows a wider wave of executive turnover at the San Francisco-based firm. Last month, product and business chief Fidji Simo stepped down to focus on recovery from a "severe exacerbation of a chronic illness," while three other senior managers left OpenAI in April.

The executive changes coincide with critical preparations for OpenAI's public market debut. The company submitted a confidential IPO draft to the Securities and Exchange Commission in June, shortly after Anthropic filed its own prospectus. OpenAI closed a funding round in March at an $852 billion valuation. To justify that figure, the firm has prioritized corporate adoption; Chief Financial Officer Sarah Friar told CNBC in January that enterprise clients accounted for roughly 40 percent of revenue, with expectations to reach 50 percent by the end of the year—a target Dresser stated in April was "on track."