We specialize in retained searches in technology, manufacturing, healthcare, consumer, business services, non-profit, higher education, venture capital, private equity and high growth companies.
Cullen Onstott
Cullen Onstott is a Managing Director at Onstott Group. He joined the company in October 2016 with eight years' experience in the financial services industry. Cullen has focus on clients in the PE sector, working with their portfolio companies across the technology, healthcare, industrial, and consumer sectors.
Prior to joining Onstott Group, Cullen was part of the energy and utilities group at DTE Energy Trading in Houston, TX. Previously, Cullen spent five years at Morgan Stanley in the firm's institutional commodities division where he helped evaluate opportunities in North American Power and Gas, based in New York, NY.
Cullen started his career as an investment analyst at Rocaton Investment Advisors in Norwalk, CT, a leading institutional investment consulting firm.
Cullen holds an M.B.A. from the Jones Graduate School of Business at Rice University and a B.S. degree in Finance from Fairfield University, where he played on the school’s Division 1 golf team. While at Fairfield, Cullen served as the COO of the Fairfield Investment Group.
Cullen is an accomplished amateur golfer who also enjoys travel, skiing, and water sports.
He can be reached at constott@onstott.com 
Joe Onstott
Joe Onstott, who founded Onstott Group in 1987, brings a wealth experience in the technology sector. Joe is a critical advisor to many CEOs and Boards of Directors, assisting them in strategically building their companies. His search practice has focused on recruiting Board members, CEOs and executive teams for early stage, high growth, and turnaround businesses in enterprise software, communications, ecommerce, media, defense, security, and business services.
Prior to forming Onstott Group, Joe served as the Vice President in the Boston office of a major international search firm. Before entering the field of executive search, Joe was Executive Vice President and Chief Operating Officer of Sherman Howe Computers, a leading regional computer dealer. During this time he also serviced on the Board of Directors of the Micro Computer Industry Association. Earlier, he held executive positions with Hendrix Technologies and Dest Corporation. Joe began his career with IBM in White Plains, New York. Prior to joining IBM Joe worked for the Denver Nuggets in professional basketball.
Joe is featured in The Career Makers: North America’s Top Executive Recruiters, published by Harper Collins Publishers, Inc. A former Board Member of the Association of Executive Search Consultants, Joe received AESC’s distinguished Eleanor H. Raynolds Award in 2014. Joe holds a Certificate from the Harvard Business School Owner/President Program, where he serves on the Alumni Association Board. He earned a Bachelor of Arts degree from Midland University.
He can be reached at jonstott@onstott.com.
Pat Campbell
Pat Campbell co-founded Onstott Group in 1987. With a background in management consulting, Pat brings a thoughtful and consultative approach to building high performance management teams. She has established long-standing relationships at all executive levels, and repeat work is the hallmark of her success. Pat has successfully completed executive search assignments for clients in software, consumer products, non-profit, higher education, services, and private equity industries. Her clients range from early-stage ventures to large public companies.
Pat has been named to the Top 10 Recruiters by Women’s Business Boston. Her clients describe her as “dynamic and passionate”, “highly professional” and “determined to win and succeed”. They emphasize Pat’s “amazing ability to weave herself within the company culture . . . upholding her business ethics while executing decisively and above and beyond expectations”.
Pat is a member of the Northwestern University Leadership Council, and previously served on the Advisory Board for the F.W. Olin Graduate School of Business at Babson College. A long-standing member of the Association of Executive Search Consultants, Pat currently sits on the AESC Americas Council, where she chairs the membership committee. She holds an M.B.A. from Babson College and a B.A. with academic distinction from Northwestern University.
She can be reached at pcampbell@onstott.com.
Christine Venditti
Christine Venditti is a Managing Director at Onstott Group and has extensive retained executive search experience for scaling private equity, VC-funded and public companies.
With a combination of corporate executive search experience on Apple’s internal team and Partner roles with leading retained boutique firms, she has lead successful team builds. In addition, she ran her own retained search firm serving growth mode, investor backed technology companies in the San Francisco Bay Area.
Her areas of expertise in technology include SaaS, AI/Robotics, Data/Information Services and Digital Media. Known for her consultative approach, her functional expertise includes CFO, CMO, CPO and CEO/President roles.
Christine is a graduate of Stanford University and a long-time mentor at Stanford's StartX Accelerator.
She can be reached at cvenditti@onstott.com.
Shane McMahon
Shane McMahon is a Managing Director for the Onstott Group working out of Charleston, South Carolina, but also spending extensive time in Boston.
Prior to joining Onstott Group, Shane was a Principal at True Search, where he focused on executive searches across the Technology and Industrial Sectors. Shane has an extensive track record working across multiple departments, having placed hundreds of CROs, CMOs, COOs, and CFOs. Shane started his career working in Finance, first at Barclays Bank, and then at Gulf Oil. He eventually moved into the Technology sector, as a member of the Strategic Business Development team at CarGurus in Cambridge, MA – where he was able to see the company achieve incredible growth, eventually leading to an IPO. Shane leverages his pattern-recognition as an operator, having first-hand experience seeing what it takes for a company to be successful through multiple stages of growth.
Shane graduated from Hamilton College with a degree in Economics. While at Hamilton, he was a member of the Men’s Lacrosse team. Shane also has his MBA from the F.W. Olin Graduate School of Business at Babson College.
Outside of work, he tries to stay active with competitive sports, but he and his wife spend most of their free time chasing around their toddler son.
Shane can be reached at smcmahon@onstott.com.
Marc Riblet
Marc Riblet is the Vice President of Research and Operations at Onstott Group. Marc has over 25 years of professional services, research, operations, and technology experience.
Marc manages the Onstott Group’s research team. He is a solution orientated leader with extensive experience in team leadership and driving research strategies for clients in a broad range of industries. Marc’s experience includes assignments conducted for private equity, small and mid-cap companies, large enterprise, non-profit, and higher education. He has contributed on over 1,000 assignments at various functional levels of the organization including C-Suite, Board, Executive, and Director level.
He has a technical background with experience managing systems and technology.
Marc holds a B.S. degree in Business Administration from Bryant University.
He can be reached at mriblet@onstott.com.
Gary Evee
Gary Evee is a Senior Advisor to Onstott Group.
Gary Evee is the founder and CEO of Evee Security Consulting Group and OutFront Educational Services, a premier and trusted cybersecurity consulting company dedicated to helping companies develop holistic cybersecurity resiliency programs.
He has over 20 years of experience in addressing complex IT challenges across a number of industries including, financial services, healthcare and government. During his career, he has worked across the globe, to protect clients in a number of industries from a range of sophisticated and persistent cyber attacks.
Prior to founding Evee Security Consulting Group, he held a number of leadership roles at IBM. Gary was most recently a cybersecurity executive within the IBM Security Division, where he led the sales and go to market strategy for IBM’s mobile and financial services cybersecurity solutions.
During his tenure at IBM, Gary was an executive champion for the company’s diversity and inclusion initiatives in the New England area.
Gary currently serves on a number of for profit and non profit organizations. In addition, he currently serves as a Cybersecurity strategic advisor to a number of Higher Education institutions.
He can be reached at gevee@onstott.com.
Brian Quirk
Brian Quirk is a Senior Advisor to Onstott Group.
Brian has spent his career in global operations leadership roles with several high technology companies including Stratus Computer, GenRad, Teradyne, and MKS Instruments, Inc. Most recently, Brian was Senior Vice President of Global Operations at MKS Instruments, Inc. In this role, he led the company’s operations consisting of over 20 facilities in 12 countries. Brian was also in charge of integrating the Mergers and Acquisitions of MKS.
During his tenure at MKS, the company grew from $450M to over $2.4B in sales. Brian’s organizations successfully scaled and delivered leading edge products and services to global customers including Ford Motor Company, Samsung, IBM, Apple, GE, Danaher, General Dynamics, Raytheon, and Applied Materials. Brian is an expert in six sigma and lean manufacturing methodologies, along with metrology and product data management systems and implementations. He has implemented these methods and platforms in his global operating sites
Brian left MKS in late 2018 and founded BCQ Operational Excellence, where he serves as President. The company advises manufacturers and operating companies on business and market strategy, operations management, lean methodology, organizational planning, and other key techniques enabling his clients to grow to their potential.
Brian received a B.S. degree in Business Management from Bentley University and an MBA from Suffolk University. He serves as a Member of the Board of Overseers at Mount Auburn Hospital in Cambridge, MA.
He can be reached at bquirk@onstott.com.
