Kate (Kamber) Brennan is Senior Vice President, Digital at Rational, where she leads the firm’s investor relations practice and is building a differentiated financial communications offering that combines strategic counsel, precision targeting, and audience intelligence. She advises clients across corporate affairs, crisis communications and B2B marketing, translating complex data into strategies that shape market perception, strengthen corporate reputation and drive business and policy outcomes.
Throughout her career, Kate has led digital targeting and corporate communications campaigns for 35 of the Fortune 100 companies, with experience supporting major brands including JPMorgan Chase, PayPal, Microsoft, FedEx, Boeing, and United Airlines. Her work spans corporate reputation, crisis response, executive positioning, and stakeholder engagement. At Rational, she applies the firm’s proprietary Pinpoint Targeting® technology to investor communications, helping companies reach investors, analysts, financial media, and other influential stakeholders while extending the reach and impact of earned media, executive communications, and corporate narratives.
Before joining Rational, Kate spent nearly a decade at Edelman, rising to Vice President and helping shape the firm’s Global Business Marketing practice, where she led integrated B2B campaigns for Fortune 500 companies and major trade associations. Earlier, she managed more than 150 advocacy, fundraising, and stakeholder engagement campaigns at DDC Public Affairs.
With a background in publisher advertising, product marketing and website development, Kate brings deep technical expertise to communications strategy, audience engagement, and performance measurement. She holds a B.A. in Political Science from the University of Virginia and certifications in Google Ads and Google Analytics.