Dennis K. Hennessey — Founder
I believe that a CS team is only as strong as the operations powering it. With over 20 years of experience in Account Management, Customer Success, and Operational Transformation, I help organizations move past manual hurdles and toward scalable, automated success. My mission is simple: ELIMINATE FRICTION, CODIFY BEST PRACTICES, AND USE DATA TO TELL THE STORY OF CUSTOMER SUCCESS. I bring a proven ability to build and grow high-value relationships while aligning operational strategy with business outcomes. I've led enterprise account portfolios, negotiated renewals and contract expansions, and partnered with cross-functional teams across product, operations, and executive leadership to drive measurable growth and retention. Throughout senior leadership roles including VP and Director positions, I have consistently developed strategic account programs, leading cross-functional initiatives, and translating performance data into actionable business strategy positions me well to manage and grow complex partnerships. I focus on creating consistency at scale by bridging the gap between Customer Success strategy and measurable financial outcomes. From streamlining global renewal workflows to building high-performing Ops teams, I am committed to turning customer health data into actionable growth strategies. By linking operational KPIs to NRR and profitability, I ENSURE THAT CUSTOMER SUCCESS ISN'T JUST A SERVICE, IT’S A PRIMARY DRIVER OF THE BOTTOM LINE. Leadership Philosophy: Over the years, I’ve learned that leadership has less to do with having the right answers and more to do with creating the right environment. After more than two decades working across Customer Success, Account Management, and Operations, what stands out most isn’t process — it’s people. I try to lead with empathy, curiosity, and steadiness. I’ve seen that when people feel heard and trusted, they bring better ideas, take greater ownership, and grow in confidence. My role is often to listen first, ask thoughtful questions, and provide clarity when it’s needed — not to dominate the room. I value direct, honest conversation, but I believe it can be delivered with respect and care. Accountability matters, but so does dignity. Especially in moments of pressure, I aim to be calm, fair, and consistent. If the people around me feel supported, challenged in healthy ways, and stronger than when we began working together, I consider that meaningful leadership. If my team becomes more confident and capable over time, that’s success to me.
Stackforce AI infers this person is a Customer Success Operations Leader in the SaaS industry.
Location: Boston, MA, United States
Experience: 23 yrs 10 mos
Skills
- Operations Management
- Customer Experience Management
- Account Management
- Customer Success
- Business Development
Career Highlights
- Over 20 years in Customer Success and Operations.
- Achieved 100% client retention across multiple roles.
- Expert in transforming operational processes for scalability.
Work Experience
Ferryway Consulting Partners
Founder (7 mos)
HealthAxis Group
VP, Account Management and Commercial Strategy (8 mos)
HealthEdge
Executive Customer Partner (1 yr)
HealthAxis Group
Vice President, Operational Enablement (1 yr 7 mos)
EdCast
Director of Customer Success (North America) (10 mos)
HealthEdge
Sr. Director of Customer Success Operations (2 yrs 8 mos)
Welltok, Inc.
Sr. Director of Engagement Management (2 yrs 3 mos)
Signiant
Director of Customer Success (1 yr 1 mo)
WTD Consulting
Customer Success/Experience Consultant (9 yrs 5 mos)
Nasuni
Customer Success Manager, Sr. (2 yrs 6 mos)
Varolii
Customer Success Manager (1 yr 6 mos)
Technical Account Manager (9 mos)
Partner Advocate, Sr. (1 yr 9 mos)
Iron Mountain
Technical Account Manager (8 mos)
WXRV, 92.5 The River
Director of New Media Development and Local Sales (1 yr 3 mos)
Massachusetts Army National Guard
Specialist (6 yrs)
Education
Master of Science - MS at University of Denver
Bachelor of Arts Degree at Emerson College