AI Is Changing Everything. We’re Making Sure It’s Safe.

Rick Caccia has a long history of bringing successful security and compliance products to market, and has held product and marketing leadership roles at Palo Alto Networks, Google, and Symantec. He ran product marketing at ArcSight through its IPO and operations as a public company, and was the first CMO at Exabeam. He has multiple degrees from University of California, Berkeley.

Gil Spencer has led technology teams and security pioneers, founding IronKey (acquired by Imation) and Marble Security (acquired by Proofpoint). He served as a technology leader at AT&T Cybersecurity following AlienVault’s acquisition and founded Spree3D, where he innovated with AI and 3D for video-based brand engagement. Earlier in his career, he was an engineer at Apple in System Software and Quicktime, after which he developed the first Mac DVD player at E4.

Stephanie Gilliam brings significant experience in leading innovative marketing teams focused on developing effective strategies for customer acquisition and retention. Her expertise spans, brand strategy, growth marketing, and customer engagement, enabling her to connect effectively with target audiences. Prior to joining WitnessAI, Stephanie held leadership roles at Imperva and Exabeam, where her sales-focused, data-driven approach fueled company growth and enhanced overall marketing performance. She holds degrees from California Polytechnic State University and The University of Texas.

Faisal Rahman is an accomplished sales leader with over two decades of experience in the cybersecurity industry. He has a proven track record in driving sales growth and leading teams. Faisal’s extensive experience includes nearly a decade at Exabeam as Regional Sales Director and eight years at Imperva as Senior Director of Sales Engineering for the Americas. He began his career as a security engineer at E*TRADE and has a strong educational background with an MBA from Georgia Southern University and a BBA in Management Information Systems from the University of Georgia.

Mark Sierra brings extensive experience in driving financial strategy and operational excellence to WitnessAI. Since 1996, he has worked with VC-backed startups, including those funded by Kleiner Perkins, Sequoia Capital, a16z, Menlo Ventures, and Greylock. Throughout his career, Mark has helped companies raise approximately $1 billion in equity and debt, and he has led or participated in multiple exits, with several former client companies still actively engaged in the market.

Trevor Welsh is a seasoned executive in the AI and cybersecurity sectors. With over two decades of experience in product leadership and innovation, Trevor has been instrumental in shaping cutting-edge security solutions for some of the most critical areas in technology, including cloud security and edge computing. He has held senior roles at leading organizations like Lacework, Google, Anomali, and Splunk where he built and led high-performing teams. Trevor is a prolific inventor with over 35 patents and pending patents, underscoring his deep expertise in risk management, data loss protection, and large-scale AI-driven security solutions. His leadership and forward-thinking approach continue to drive transformational results in the cybersecurity landscape.

Alex has over 20 years of experience building and leading product teams in delivering solutions securing organizations both large and small. Most recently, Alex served as VP of Product at LevelBlue / AT&T Cybersecurity where he led engineering and product management. Prior to acquisition by AT&T, Alex led product management for AlienVault where he served as VP, Product Management.