Executive Management Team


Ashley Stephenson

Ashley Stephenson
Chief Executive Officer

As Chief Executive Officer, Ashley Stephenson leads the company’s global expansion strategy. A seasoned executive with a proven track record in the technology industry, he brings a notable record, having co-founded or led several technology companies as Chairman or CEO. An IT industry executive and Internet technology entrepreneur, Stephenson has operating experience in the United States, Europe and Asia. As CEO he drives Corero’s global strategy, focusing on the company’s growth by capitalizing on its market leading and unique First Line of Defense® product offerings and strong blue-chip customer base.

Previously, Stephenson was CEO of Reva Systems, acquired by ODIN, and Xedia Corporation, acquired by Lucent. He was awarded "CEO of the Year" by the Massachusetts Telecommunications Council for his work at Xedia Corp.

In recent years he has spent the majority of his time providing strategic advisory services on the evolution of the global IT market.

Stephenson began his career at IBM Research & Development in the United Kingdom. For several years he taught Entrepreneurship as an Adjunct Professor in the Babson College MBA program. Stephenson has served on the Board of Directors of many venture-backed startups and industry consortia. He is a graduate of Imperial College, London with a degree in Physics and an Associate of the Royal College of Science. He is the holder of several U.S. patents.


Dave Larson Chief Operating Officer

Dave Larson
Chief Operating Officer & Chief Technology Officer

Dave Larson, Chief Operating Officer and Chief Technology officer is responsible for directing the Corero technology strategy as the company continues to invest in its next phase of growth; providing next generation DDoS attack and cyber threat defense solutions for the Service Provider and Hosting Provider segments. Larson brings over 20 years of experience in the network security, data communication, and data center infrastructure industries. Most recently, Larson served as Chief Technology Officer for HP Networking and Vice President of the HP Networking Advanced Technology Group. In this role he was responsible for creating the long-term technology vision and strategy for HP Networking across a variety of product divisions and geographies. 

Prior to HP, Larson was Vice-President of Integrated Product Strategy for TippingPoint, where he was instrumental in transitioning the business to develop a line of Next-Generation Firewalls and vice-president of Security Product Line Management for 3Com Corporation where he defined global security products strategy across R&D development facilities in the U.S., U.K., and China.

Larson has also held senior marketing and product roles with Tizor Systems, Sandburst Corporation and Xedia Corporation. He has a Bachelor of Science degree in Physics from Gordon College in Wenham, Mass.


Andrew Miller

Andrew Douglas Miller
Chief Financial Officer, and Executive Director

Andrew Douglas Miller, CFO and Executive Director responsible for finance and operations, was with the Datatec Limited group in a number of roles between 2000 and 2009 including the Logicalis Group Limited (“Logicalis”) Operations Director and Corporate Finance and Strategy Director. Miller led the Logicalis acquisition strategy, acquiring and integrating 12 companies in the US, UK, Europe and South America. Prior to this, Miller gained considerable corporate finance experience in London with Standard Bank, West Deutsche Landesbank and Coopers & Lybrand. Miller trained and qualified as a chartered accountant and has a bachelor’s degree in commerce from the University of Natal, South Africa.


Joe Branca

Joe Branca
Vice President, Finance

As Vice President, Finance, Joe Branca plays a key role in developing, monitoring and evaluating overall corporate strategy with the business leaders with emphasis on bottom line performance. Branca brings over 15 years of experience as an entrepreneur, operations and finance leader for service oriented technology solutions. Previously, Branca held similar roles at  ExtendMedia, acquired by Cisco Systems, and  Outcome Sciences, acquired by Quintiles. He holds a BA in Biology from Amherst College and an MBA from Babson College’s F.W. Olin School of Business.


Joe Branca

Tony Hart
Chief Architect, Engineering

As Chief Architect, Engineering, Tony Hart spearheads technical   strategy and development of Corero’s industry leading DDoS mitigation technology. Tony  has over 20 years’ experience in the architecture and development of networking products, including routers, switches an optical equipment. Previously, Tony ran the architectural development of a forerunner to SDN controller at Soapstone Networks. Prior to Soapstone, Tony was the Chief Engineer at Avici Systems, building one of the industry’s first Terabit Router. Tony also had previous roles at IBM, BTI Systems, Netezza and Digital Equipment Corporation.  


Joao Melo

Joao Melo
Vice President, Operations and Customer Services

In his role as Vice President Operations and Customer Services, Joao Melo assures Corero outperforms its competition in terms of quality, service level agreement (manufacturing) and cost of goods. Melo has been providing substantial operational value to the company's business for over 10 years, continuously improving value to the customer through streamlining corporate processes and focusing on their needs. He has more than 20 years of creative problem-solving experience in many business areas, including supply chain management, manufacturing, regulatory compliance, quality assurance, sales management, product marketing, product development and engineering.

Prior to joining the company, Melo was a senior consulting engineer, delivering product design consulting services for Bleck Design Group. He also held a position as a mechanical engineer for Bose Corp. He holds a BSME from Boston University and MBA from Babson College with a focus on managing technology-intensive enterprise.


Julian Palmer

Julian Palmer
Vice President, 

Julian Palmer, Vice President of Engineering, is responsible for Corero’s worldwide product development and research team. Palmer brings over 25 years of engineering leadership and product development across the network security, storage, and operating systems industries. Palmer has a proven track record of developing product and engineering strategy, and successfully leading multi-site R&D organizations to success.

Prior to joining Corero, Palmer was a Distinguished Technologist and Senior Product Manager within HP Enterprise Security Products and HP Networking divisions. Within HP TippingPoint, Palmer was instrumental in developing both product and engineering strategy, and led various significant new product introduction projects in the next generation firewall, intrusion prevention and networking spaces. Palmer has also held senior roles within 3Com Corporation, Adaptec, and Digital Equipment. Palmer has a Bachelor of Science degree in Computer Science from Edinburgh University, United Kingdom.


Joe Branca

Stephanie Weagle
Vice President, Marketing

Stephanie Weagle brings 12+ years of marketing and communications experience to Corero Network Security. As Vice President of Marketing for the Corero DDoS protection solutions, Stephanie strives to accelerate market penetration of the award winning Corero real-time DDoS mitigation product portfolio. Stephanie has been instrumental in establishing Corero as a category creator for automatic, scalable DDoS protection that is architected to meet the needs of any Internet dependent organization, including, mid-tier hosting and service providers, on-line gaming entities, tier-1 carriers and large online enterprises.


If you would like to learn more about Corero Network Security, please contact us.