Tunnel Management Team


The team has worked for prestigious companies such as Microsoft, Twitter, Cisco Systems, Oculus, RSM, Credorax, BAE Systems, and more.

The founders have backgrounds in payments, distributed ledger technologies, software engineering, marketing, economics, legal, and more.

  • LinkedIn Social Icon

Frank Makrides

Co-Founder, CEO


10+ years leading multi-billion dollar software projects in the defense industry at BAE. Formerly Cisco. Blockchain since 2012. Co-Founder of the Boston Blockchain Association. PMP & Six Sigma Black Belt.

  • LinkedIn Social Icon

Mariana Svirchuk

Co-Founder, CTO


MS in CompSci. 12+ yrs engineering experience including building payment processing gateway at Credorax.

  • LinkedIn Social Icon

Neil Ratna

Co-Founder, COO


Former financial auditor at RSM. Successful entrepreneur. 10+ yrs Sales & Marketing experience. Blockchain since 2013.

  • LinkedIn Social Icon

Alexander Rodriguez, Esq.

General Counsel & BSA Compliance Officer


JD/MBA. Certified Anti-Money Laundering Specialist (CAMS) certification in process. Former President of MA Assoc. of Hispanic Attorneys.

  • LinkedIn Social Icon

Alexey Savin

Chief Architect

CompSci/Math. 14+ years experienced full-stack engineer. Designed and implemented complex, high load, high performance, scalable and fault tolerant systems in the AdTech space.

  • LinkedIn Social Icon

Benjamin Cavallari

VP Business Development


Developed digital platforms for Warner Bros. Games & Microsoft Xbox teams, Advised OculusVR on Research, Partnerships & University Collaboration. BizDev experience launching multiple successful technology startups.

Meet Our Advisors


  • LinkedIn Social Icon

Steve Hillas

Banking Technology Advisor


CIO of Santander Bank Holdings US, Technology Adviser, Former CEO of Eurobank e-Solutions, & CIO of Piraeus Bank International.

  • LinkedIn Social Icon

Angela Ratliff, CAMS

Compliance & Risk Advisor


15 years of domestic & international AML, risk & compliance. SVP of Financial Crimes & Operational Risk (Payments) at U.S. Bank.

  • LinkedIn Social Icon

Mike Privette

Security Advisor


14 years of experience leading cybersecurity, data protection & cloud security programs in the financial services industry. CISSP, CISA and CEH certified.

  • LinkedIn Social Icon

Garey House

Payments Advisor


Vice President of Business Development at Capital One, Certified Treasury Professional & Certified in Commercial Credit.

  • LinkedIn Social Icon

Greg Raiz

Mobile/UX Advisor


Founder of renowned mobile dev shop Raizlabs. Clients are Microsoft, HP, Macys, Costco, Blue Cross Blue Shield and more.

  • LinkedIn Social Icon

Thrasyvoulos Karydis

Cryptography Advisor


MIT Media Lab. Co-Founder of a Biomedical Blockchain project. Background in Quantum Cryptography.

  • LinkedIn Social Icon

Manos Athanassoulis

Database & Systems Advisor


Ph.D. & Harvard researcher. formerly Harvard Postdoc, IBM Watson.

  • LinkedIn Social Icon

Dee Hadley

Marketing Advisor


Kellogg MBA. 20+ yrs marketing experience. Former CMO of Uno Pizzeria and Pizza Hut Korea. Former marketing director of Unilever.

Follow Us:

  • Black Twitter Icon
  • Black LinkedIn Icon
  • Black YouTube Icon
  • Black Facebook Icon

© 2019 Tunnel. All Rights Reserved. Privacy Policy. Terms of Use.