Giselle is a category-creating go-to-market and narrative strategist with forty years across four waves of computing — from the graphical interface at Xerox PARC to frontier AI.
A journalist by training (InfoWorld and national tech and consumer magazines) she has launched and repositioned products at HP, Citrix, Phoenix Technologies, Cirrus Logic, CyberMedia (NASDAQ IPO, acquired by McAffee, then Intel), Postini (acquired by Google), Responsys/Oracle, Etouch (NASA/Cisco), NeXT, Adobe, Apple, and Sun Microsystems.
As Principal of Chain Reaction PR, she advises enterprise and VC-backed AI and deep-tech companies, including 42Ride, a nonprofit ridesharing app built on the Claude API.
She is the first female mentor at Founder Institute Silicon Valley, where she has guided 100+ founders for a decade.
Her conviction: fairness is a design choice, and the AI era needs narrative architects, not communications executors.
She began where the graphical interface itself began: at Xerox PARC and XSoft, where the metaphors that would come to define personal computing were still being invented. From there she helped launch the products that built Silicon Valley’s consumer era — the HP 95LX palmtop and HP’s first color inkjets, Trimble’s consumer GPS, Citrix in its Ballmer-era ascent. She booked 36-city press tours and ran six-figure launch budgets when a launch still meant getting on a plane.
She is also a journalist. As a reporter and editor at InfoWorld and national technology magazines, she learned the discipline that still governs her work: a story is only as strong as the reader’s reason to believe it.
That dual fluency — operator and reporter — carried her through the internet era. She ran communications for CyberMedia through its 1996 NASDAQ IPO (CYBR) and its acquisition by Symantec; handled Phoenix Technologies, the BIOS inside nearly every PC shipped; steered global crisis communications for Panda Security; and supported Postini through its acquisition by Google and Everypath through the platform wars, where she grew a single launch from 8 partners to 40 — including Marc Benioff directly. She helped take Purism to $4.5M in crowdfunding and worked alongside the SRI team behind ALICE, an ancestor of today’s conversational AI.
Today she is Principal of Chain Reaction PR, a Silicon Valley communications consultancy serving enterprise and VC-backed AI and deep-tech companies. She advises 42Ride, a nonprofit rideshare platform built on the Claude API, and holds an equity stake in Ceres Robotics. As the first female mentor at Founder Institute Silicon Valley — ranked in the program’s global top 10% — she has guided more than 100 founders.
Her conviction is simple and contrarian: fairness is a design choice, not an accident, and the companies building AI need narrative architects, not narrative executors. She is now focused on what she considers the defining communication challenge of this wave — helping the people building frontier AI tell the truth about it in a way the world can actually hear.