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About Calamu
Dedicated to eliminating
data breaches forever.
Everyday, data is stolen and held for ransom to devastating effect. The same mountain of IP and PII that makes business possible also threatens to damage it beyond repair. It’s clear that traditional data security has become outmatched.
Calamu was founded by cybersecurity experts to solve this worsening problem. Years of R&D led to a breakthrough, a next-gen resilience technology so superior that ransomware becomes obsolete. Even if an attacker gets past your perimeter, with Calamu they get nothing of value–and your data remains safe and accessible, with zero downtime.
Meet our Leadership Team
Paul is a serial cybersecurity entrepreneur with more than 30 years in the industry. Formerly the Founder and CEO of PG Lewis LLC, a cyber security and data forensics company that was strategically acquired by Robert Half International (NYSE:RHI), and the Founder and CEO of MC2, a data security company that was strategically acquired by Volt Information Sciences (NYSE:VOL), Paul's been granted numerous patents to advance data privacy and protection and is a court-appointed expert in data security and incident response.
Paul is a serial cybersecurity entrepreneur with more than 30 years in the industry. Formerly the Founder and CEO of PG Lewis LLC, a cyber security and data forensics company that was strategically acquired by Robert Half International (NYSE:RHI), and the Founder and CEO of MC2, a data security company that was strategically acquired by Volt Information Sciences (NYSE:VOL), Paul's been granted numerous patents to advance data privacy and protection and is a court-appointed expert in data security and incident response.
Jeffrey Weinstein
President & COO
Jeffrey Weinstein is an experienced executive and successful entrepreneur, having been in numerous leadership roles in software firms that include startups, high-growth firms, and publicly traded companies. Formerly the Chief Growth Officer of Traliant (#13 on Deloitte’s 2020 Technology Fast 500, acquired by Providence Equity Partners), and the CEO and Board Director of RightAnswers (acquired by Upland Software), Jeffrey’s achieved market leadership for a varied number of successful ventures.
https://www.linkedin.com/in/jeffweinstein11/
https://twitter.com/JeffWeinstein33
Anselmo Di Fabio
Chief Technology Officer
Anselmo Di Fabio is a proven technology innovator with more than 25 years leading large-scale application development. Former co-founder and CEO of BioDati, and former CTO of Applied Dynamic Solutions, a digital development agency, Anselmo has spent his career turning advanced technical visions into reality.
https://www.linkedin.com/in/anselmodifabio/
https://twitter.com/Anselmo_DiFabio
Rob Pledger
Chief Software Architect
Rob Pledger brings 35 years of experience within the software industry to Calamu. He has shipped over 30 commercial software products and has been involved in many successful exits including two IPOs and four acquisitions. Most recently serving as a Principal Engineering Director in Microsoft’s Azure Cloud division and Microsoft Teams, Rob has helped pioneer some of the principal cloud experiences offered with the Azure and SQL Azure platforms. Rob has also served as a Principal Cloud Architect at Expedia and has served as CTO, VP, and Engineering Director at seven successful startups.
https://www.linkedin.com/in/rpledger/
Simon Yelsky
VP Product
Simon Yelsky brings 20+ years of experience in Product Management to Calamu by being able to anticipate customer needs and enhancing the products and services that drive our business forward. He has a passion for bringing products to market and has led the Product Management efforts at RightAnswers (acquired by Upland Software) as well as ADP and Information Builders. Simon has an Electrical Engineering degree from Columbia University and an MBA from the Stern School of business.
https://www.linkedin.com/in/simon-yelsky-8455061/
Nick Ryan
VP Marketing
Nick Ryan is a proven marketing leader and go-to-market strategist, specialized in SaaS delivery and cloud enablement. Formerly of Google Cloud and BlueJeans Network (acquired by Verizon Media), Nick has spent over a decade activating hyper-scale growth for disruptive technologies. He now dedicates his expertise to leading marketing and growth for Calamu.
https://www.linkedin.com/in/nickmryan/
Simon Ragona
VP Customer Success
Simon Ragona is a dedicated cybersecurity leader and strategist, with over 15 years experience examining and consulting on data forensics, incident response, and information security. Formerly of Protiviti, T&M, and the Department of Homeland Security, Simon now dedicates his expertise to leading customer success and vision for Calamu.
https://www.linkedin.com/in/simonragona/
https://twitter.com/D8A4N68R
Dean Archibald
Director of Sales
Dean Archibald brings over a decade of direct and channel sales leadership to Calamu. He has successfully helped customers and partners meet their digital transformation goals across a variety of tech categories, having formerly served at Hewlett-Packard Enterprise, Veeam Software and Wasabi Technologies. Dean has designed, launched, and managed numerous go-to-market strategies in addition to leading new product introductions.
https://www.linkedin.com/in/deanarchibald/
Joan Dorsey
Director Administration
Joan Dorsey is a proven administration leader and analyst, with more than a decade’s experience in accounting, business administration and people operations. Formerly of T&M, a security and cyber intelligence firm, and MetLife, Joan now dedicates her experience to directing people operations at Calamu.
https://www.linkedin.com/in/joankdorsey/
At Calamu our mission is to make the cyber world safer.
Our first-of-its kind data protection platform is based upon these three core beliefs: data should be able to withstand any breach, be valueless to cyber attackers, and be globally compliant.
Paul Lewis, Founder / CEO
Board of Directors
Lou Ryan (Chairman)
Former CEO & Executive Chairman of Edgewave
Lou Ryan is a serial cybersecurity entrepreneur and investor, with successful exits in his more than 30 years experience leading startup companies. Formerly the CEO and Executive Chairman of Edgewave, and previously of Entercept Security Technology, Lou is an Executive Advisor to Calamu and sits on the Board of Directors.
John Stewart
Former SVP Chief Security & Trust Officer Cisco Systems, Inc.
John Stewart is an angel investor and startup advisor at Talons Ventures, with more than 30 years experience in cybersecurity. Formerly the SVP Chief Security & Trust Officer of Cisco Systems, Inc, he now serves on the Board of Directors at Calamu in addition to serving at TrustMAPP, Quantum Xchange, Blackpoint Cyber, and more.
Advisory Board
Backed by founders, executives, and security leaders from transformational companies:
Learn More About Calamu
press release
