Exceptional Leaders

Serial entrepreneurs in tech, media, and finance, as well as PhDs and Engineering leaders from Fortune 500 companies

Charlie Silver

Charles H. Silver


Charles is a successful entrepreneur who has founded and exited in 5 startups in technology, media and finance. He co-founded Reality Shares, which has 7 publicly traded ETFs including the first Blockchain equity ETF. In the dotcom era he built RealAge which was successfully sold to Hearst for over 9 figures.

Robin Bloor

Robin Bloor, PhD

Technology Evangelist

Robin has over 30 years experience in big data and information management. He has authored books on e-commerce, service management and cloud computing.


Hunter Jensen


Having launched his first website in 1998 and first iOS app in 2008, Hunter has been at the forefront of the software design and development industry for over 20 years. He is a distinguished speaker, author, entrepreneur and thought leader in the digital world, well-known for leading teams to release best-in-class web & mobile products, including for Samsung, Cisco, Salesforce, Avalara, and many more.

Joe Underbrink

Joe Underbrink

Chief Data Scientist & Mathematician

Joe has been innovating in data science for over a decade. As a core mathematician and data scientist at Algebraix Data, he was instrumental in the development and application of Data Algebra to database management systems. Prior to Permission, he also spent several years using machine learning and AI to develop predictive and prescriptive analytics tools for EOG and 3M.

Bobby Petersen


Bobby is a successful entrepreneur and marketing expert. At a young age, he rescued a fledgling promotional tent business and eventually exited at a 20x multiple. He has since founded several companies in multiple industries, including an international race business which broke attendance records in Australia, and is a proven guru at driving audience growth and has ultimately recorded over $100mm in direct lifetime sales.
Matt Erhart

Matt Erhart

VP of Finance & Compliance

Matt holds FINRA Series 7, 66, and 24 licenses and brings more than 9 years of regulatory compliance and financial experience to Permission.

Jenny Silver

VP of Communications

Jenny has over 20 years of executive experience in brand strategy, business development, and communications. She is an attorney and leadership consultant, and has served as a strategic advisor for numerous businesses and nonprofits.

Therese Fahy

Therese Fahy

HR & Controller

Therese is Permission’s Jack of All Trades. She currently runs the accounting, human resources and payroll divisions of our company.

Gary Sherman

Gary J. Sherman, PhD

Founding Mathematician

Gary has more than 35 years of experience as a professional mathematician, working throughout as a researcher, reviewer, and college professor.

Daniel Hiltbrand

Daniel Hiltbrand

Software Engineer

Daniel brings nearly a decade of UI and UX development and software engineering experience to Permission.

Peter Holmes

Creative Director

With a background in psychology and neuroscience, Peter is a UX guru that focuses heavily on information architecture and UI design. He is an expert in all things digital strategy, from system architecture to development, marketing, monetization and beyond.
Robert Morris

Robert Morris

Marketing ManAger

Robert is a Swiss Army Knife of marketing talent. He loves digging deep into challenges, coming up with strategic solutions, and telling meaningful stories through branding.

Zack Reboletti

Content Strategist

Zack is the Owner of Web Focused, a Chicago-based marketing consultancy that has driven results for 100’s of businesses from brick and mortar to Fortune 100.

Board Of Directors

Eric Ervin

Eric Ervin

CEO of Blockforce Capital

Eric is co-founder and CEO of Blockforce Capital, an award-winning ETF issuer and index provider. Prior to Blockforce, Eric served 14 years as a Certified Financial Planner practitioner and a Chartered Financial Consultant at Morgan Stanley. He has extensive expertise in alternatives, e.g., dividend swaps, long-short equity, and quant-based cryptocurrency strategies. In 2019, Eric was chosen to be a member of the CFTC Virtual Currency Subcommittee for the Technology Advisory Council (TAC).
Brad Murdoch

Brad Murdoch

Executive VP, Strategy & Product, Lightbend

A seasoned strategist and product manager, Brad has held executive roles in biz dev, marketing and operations for early and growth stage companies in the professional open source, cybersecurity and enterprise mobility markets, including for JBoss (acquired by Red Hat), Prevoty, Framehawk (acquired by Citrix), Nukona (acquired by Symantec) and OpenSpan (acquired by Pegasystems).
Bill Ingram

Bill Ingram

Avalara Board Member

Bill Ingram served as CFO and Treasurer of Avalara Inc., where he completed their IPO and secondary equity offerings, launched SOX/404 internal compliance, and consolidated multiple strategic acquisitions. He has previously served as Interim Chief Financial Officer of Khan Academy, held various executive roles at Leap Wireless, and founded Nuera Communications, where he was CEO.

Advisory Board

Richard Li

Richard Li

General Partner at Alphablock.com

Richard has been investing in blockchain since 2012. He has advised several successful cryptocurrency offerings and is a seed investor in Permission.

Andrew Essex

Andrew Essex

Former CEO of Droga5

Andrew is an award-winning journalist, former CEO of Tribeca Enterprises, the parent company of the Tribeca Film Festival, and former CEO of Droga5.


Ichiro Minamikawa

CEO of Cointed Japan, Founder at Blockchain Tokyo

Tokyo-based Ichiro Minamikawa founded 10 companies in 30 years. He is CEO at Cointed Japan and director of several FinTech and HealthTech companies.

Rob Gregory


Rob Gregory is a media veteran with over 30 years experience in advertising, revenue growth, and brand strategy. Before joining Permission, Rob served as co-founder and President at WhoSay & as President of The Daily Beast, as well as Publisher of Maxim and Rolling Stone magazines.