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Our Team

A Deep Bench of
Thought Leaders

Former PE portfolio company executives, investment bankers, and technology principals who have carried every accountability you are placing on your portfolio today.

The Principals

Quantum's Deal, Advisory, and Operational Team

Dr. Sean Saunders

Dr. Sean Saunders

Managing Partner
DCS · CM&AA · CPSM · Lean Six Sigma MBB
Sean Plumb

Sean Plumb

Managing Director
Investment Banking & Capital Markets
Brett Haigler

Brett Haigler

Managing Director
M&A Advisory & Transaction Management
David Pupko

David Pupko

Analyst
M&A Research & Deal Analytics
Ed Schenkein

Ed Schenkein

Managing Director & Advisor
Executive Operations & Value Creation
Dr. Dustin Sachs

Dr. Dustin Sachs

Managing Director
DCS · CISSP · C|CISO — AI & Cybersecurity
Philip Barber

Philip Barber

Managing Director
General Manager, Ripple Group
Chris Gannon

Chris Gannon

Managing Director & Advisor
Growth Strategy & Business Development
Principal Profiles

Meet the Team

Dr. Sean Saunders

Managing Partner
DCS · CM&AA · CPSM
Lean Six Sigma MBB

Foremost practitioner on AI as an enterprise value creation discipline in the lower and middle market. Holds a Doctorate in Computer Science from Colorado Technical University with a dissertation focused on the digitalization strategies PE firms use to optimize enterprise values. Credentialed CM&AA and CPSM. National keynote speaker, panel moderator, and published researcher. Former two-term Mayor and City Councilman. Member, CTU College of Business & Management Industry Council. Dr. Saunders is the principal who meets you at the table — and the principal who executes.

Sean Plumb

Managing Director
Investment Banking & Capital Markets

35+ years across investment banking and capital markets, serving middle market businesses through every stage of the deal cycle. Deep expertise in transaction structuring, debt advisory, creative capital structures, and buy-side and sell-side transaction management. Sean brings institutional-grade banking relationships and a practitioner's command of complex financing to every QPP engagement.

Brett Haigler

Managing Director
M&A Advisory & Transaction Management

Experienced M&A advisor and transaction management professional serving lower and middle market companies. Brett brings deep expertise in sell-side and buy-side advisory, deal structuring, and transaction execution across a broad range of industries. His hands-on approach and accountability to outcomes align directly with QPP's operator-first engagement model.

Ed Schenkein

Managing Director & Advisor
Executive Operations & Value Creation

Former CEO across public, private, and PE-backed companies with a proven record in sales acceleration, operational transformation, and hands-on value creation. Ed brings board-level perspective and operator-level execution to every portfolio engagement — exactly the combination QPP clients require when leadership accountability cannot wait.

Dr. Dustin Sachs

Managing Director
DCS · CISSP · C|CISO
AI & Cybersecurity Strategy

Founder and CEO of PsyberCOG Labs. Holds a Doctorate in Computer Science and carries the CISSP and C|CISO designations — among the most rigorous cybersecurity credentials in the field. Dr. Sachs brings deep expertise in AI strategy, cybersecurity architecture, and technology risk to QPP's DMSA framework and portfolio-level technology engagements. Co-presenter with Dr. Saunders on the AM&AA CPE-accredited AI in PE panel series.

Philip Barber

Managing Director
General Manager, Ripple Group

General Manager at Ripple Group with deep expertise in operational strategy, business development, and enterprise execution. Philip brings a practitioner's perspective on building and scaling businesses to QPP's operational advisory engagements, and serves as a co-presenter on the AM&AA AI in PE panel series alongside Dr. Saunders and Dr. Sachs.

Chris Gannon

Managing Director & Advisor
Growth Strategy & Business Development

Seasoned executive with deep experience in growth strategy, business development, and enterprise value creation across private and PE-backed companies. Chris brings a commercial operator's perspective to QPP client engagements — focused on revenue acceleration, market positioning, and the strategic initiatives that move the multiple before and after a transaction.

David Pupko

Analyst
M&A Research & Deal Analytics

Analytical support across QPP's M&A advisory and research engagements. David brings sharp analytical capabilities to deal sourcing, financial modeling, market research, and transaction support — contributing to the institutional-quality deliverables QPP produces for every client engagement.

Platform Growth

A Firm in Deliberate Expansion

QPP is not a static advisory practice. We are building a fully integrated operating platform. One acquisition is already complete. Three more are on the near-term horizon, including a technology strategy and services firm and a technology product management and MSP business closing within 90 days.

The result is a sole-source firm with genuine depth across M&A advisory, operational consulting, financial operations, capital markets, and full-stack technology execution — operating at the portfolio company, portfolio, and PE firm level simultaneously.

1
Completed
2
Closing Soon
1
On Horizon

Firm Acquisition Growth

Building toward a fully integrated platform delivering depth across every advisory dimension — from deal origination to post-close execution and exit.

Join Our Network

We're Always Looking for
Exceptional Operators

If you are a battle-tested PE-experienced executive who wants to operate inside the best boutique platform in the lower middle market, let's talk.