About us
Who is Liberis
Consulting?
Bussiness Philosophy
Our mission at Liberis Consulting is simple.
To deliver unparalleled product strategy and marketing consulting services that elevate and unlock the full potential of our clients’ technology offerings or services and drive sustainable long term growth.
What makes Liberis, Liberis?
Depth and breadth of experience
We have 40+ years of experience in B2B SaaS and enterprise software in roles such as consulting, product marketing, business and research.
Specialized expertise advising startups and scaleups
We have a track record helping emerging companies expand their footprint against larger competition while developing their unique positioning.
Distinct knowledge of AI and emerging technologies
We help clients clarify positioning with emerging B2B solutions and advise on the latest use of AI to solve business challenges.
Empower your brand with our flagship service
With deep domain experience, we work closely with your leadership to define and operationalize your positioning, messaging, and product sales content.
Technology Solutions Expertise
B2B Software / Enterprise
AI / Emerging Tech
Procurement
Financial
Supply Chain
Risk Management
ESG / Sustainability
Human Capital
TEAM
Constantine Limberakis
Founder
Constantine Limberakis
Constantine Limberakis, the founder, brings a wealth of experience to the table, with a distinguished career spanning management consulting, analyst leadership, and product marketing in the procurement and supply chain technology sectors. He has held pivotal roles at renowned firms including co-Founder/investor at The Shelby Group (now Accenture), and leadership positions at Aberdeen Group, The Hackett Group, Corcentric, and riskmethods. His extensive expertise underscores a profound understanding of market trends with a proven track record of strategic product marketing leadership.
Scott Heimgartner
Senior Advisor
Scott Heimgartner
Scott leverages over two decades of expertise in tech product marketing within B2B SaaS and enterprise software. Throughout his career, he has excelled in transforming complex software and technology products into compelling, differentiated narratives. Scott’s experience spans across bootstrapped startups, private equity and VC-backed growth firms, as well as publicly-traded, multi-product enterprises.
Bill DeMartino
Senior Advisor
Bill DeMartino
Bill is a strategic and hands-on leader with over 20 years in procurement and supply chain technology, spanning early-stage innovation through scaled enterprise execution. He built and commercialized cloud-based solutions across sourcing, supplier management, risk, and sustainability—leading strategy, go-to-market, and customer success. Proven track record in helping B2B software organizations scale revenue, deepen customer relationships, and establish market leadership. He brings a rare combination of product and GTM expertise, backed by a deep understanding of enterprise buyer needs and ecosystem dynamics.
VIDEO
State of the B2B ProcureTech Space
