CYBERSECURITY

About
Virtual Guardian

We design, deploy, and defend critical infrastructures. Moving beyond product catalogs to deliver architecture-first security.

OUR HERITAGE

Built by Industry Veterans

Virtual Guardian is a U.S.-based cybersecurity VAR and integrator built by leaders behind some of the industry’s most recognized security firms, including NaviLogic, AmeriNet, Accuvant, and FishNet Security.

With more than 100+ combined years of experience, we bring enterprise-scale expertise, long-standing industry relationships, and a client-first approach to everyengagement.

Corporate Structure

Virtual Guardian is a wholly owned, independently operated subsidiary of ESi Technologies. This structure gives us the financial stability and operational backing of an established technology company while preserving the client-first culture, independent vendor recommendations, and autonomous decision-making that define how we work.

TESTIMONIAL

Raising The Standard

"Virtual Guardian addresses a problem we see repeatedly across the industry... clients are promised senior expertise during the sales cycle, only to be handed off to junior delivery teams when it's time to execute. We built a different model."

Testimonial icon

Executive Leadership

Virtual Guardian

HOW WE WORK

Advisory-First, Not Product-First

While we are a VAR and integrator, we lead with strategy, architecture, and accountability — not product catalogs.

We focus on a select number of cybersecurity disciplines where we maintain deep in-house expertise. When specialized capabilities are required, we bring in vetted partners who meet our standards and operate under our direction.

Our clients get one team responsible for the outcome — not a collection of disconnected vendors.

The Trusted Integrator Model

We call our approach the Trusted Integrator model. It means:

Senior experts involved from day one

Vendor-neutral recommendations

Access to vetted specialist partners

One accountable team overseeing delivery

A focus on outcomes, not product quotas

That’s the difference between buying cybersecurity products and working with a cybersecurity partner.

Proven Leadership

Virtual Guardian brings together decades of cybersecurity leadership, deep vendor relationships, and an operating model built around trust.

We help clients make better security decisions, reduce complexity, and execute with confidence.

One team. One accountable model. Decades of expertise.

MEET THE TEAM

Executive Leadership

The leaders behind Virtual Guardian helped build some of the most recognized cybersecurity firms in the United States. They’ve guided organizations through breaches, regulatory pressure, board scrutiny, and large-scale security transformations. When you work with Virtual Guardian, you work directly with experienced operators — not layered sales teams.

Bill Strub

Bill Strub

Founder & President

Cybersecurity entrepreneur and industry veteran with 25+ years of experience building and scaling security organizations.

Bill co-founded Accuvant and later NaviLogic, helping shape some of the industry's most respected cybersecurity businesses. He leads Virtual Guardian's strategic direction and advises executive teams on complex security and regulatory challenges. Former leadership roles include Accuvant and Qualys, Bill also served as President of the Minnesota ISSA chapter.


Toby Penn

Toby Penn

VP of Sales

Technology and cybersecurity executive with 35+ years of experience across security architecture, sales leadership, and operations.

Before joining Virtual Guardian, Toby held executive leadership roles at Recorded Future and major cybersecurity integrators, leading large pre-sales and security engineering organizations across North America. His expertise spans enterprise security strategy, growth operations, and client delivery.


Tobi Sicklesteel

Tobi Sicklesteel

Director of Sales & Marketing

Senior technology leader with 30+ years of experience across cybersecurity, networking, and strategic partnerships.

Tobi focuses on client relationships, service delivery, and partner engagement, helping organizations navigate complex security initiatives with a practical, collaborative approach.


Joe Jouppi

Joe Jouppi

VP of Finance

Finance and operations executive with 25+ years of experience supporting growth-stage and enterprise technology organizations.

Joe oversees financial operations and strategic planning at Virtual Guardian, helping ensure scalable delivery and operational discipline across the business. Formerly Controller at AmeriNet and earlier with Ernst & Young.


Scott Spargo

Scott Spargo

Director of Partnerships

Cybersecurity and enterprise technology leader with decades of experience across sales, channel development, and strategic partnerships.

Scott has held leadership roles at organizations including FishNet Security, IBM, Juniper Networks, and Imperva, building deep expertise across the cybersecurity ecosystem.


Team

Our Team


Beyond our executive leadership, Virtual Guardian includes senior architects, compliance specialists, and security engineers with experience across highly regulated and complex environments.​

Our clients work directly with the experts delivering the engagement — not a handoff team after the contract is signed.​


Our Heritage

Decades of industry leadership brought together under one mission

Accuvant Founded

Leadership helps build a recognized US cybersecurity firm

NaviLogic & AmeriNet

Co-founded by VG leaders

FishNet Security Era

Senior roles across an era-defining integrator

ESI Technologies

VG leadership aligns under ESI's NA practice

Virtual Guardian Today

One accountable team, advisory-first, US-based

Need Help Evaluating Solutions?

Our team helps organizations cut through vendor noise, align technologies to business risk, and manage successful implementations from end to end. ​