Silverbranch Praxis is a boutique growth architecture firm helping organizations, teams and individuals grow.
Growth functions are fragmenting, and the people we serve feel it. We work across marketing, sales, and customer experience, designing growth systems that turn strategy into measurable action: fractional growth leadership, project-based engagements, and authentic personal branding.
15+
Years across growth, CX and operations$44M+
New revenue from diversified channels150%
Qualified pipeline expansion30-pt
NPS improvement via service delivery redesignThe cost of misalignment that compounds – eroding growth.
Experience debt is the accumulating gap between what an organization, team, or individual intends and what they actually deliver — across systems, signals, and the customer journey. It builds invisibly. Teams work hard. Numbers plateau. Nobody can name the cause. That gap has a name now. And a method for resolving it.
Read more about experience debt >Whether you’re leading an organization where growth has stalled, a team where strong initiatives keep losing momentum, or building the personal signal that matches your actual depth, the answer is the same: find the friction, fix the system.
Brian Kostantin, Growth Architect
Two decades across finance, marketing, sales, and customer experience – leading growth at the VP and C-suite level for mission-driven organizations, founders, and institutional teams.
Perspectives from clients, colleagues and collaborators.
“Brian brings uncommon strength in driving growth, opening new markets, elevating customer experience, and building truly client-centric strategies across B2B and B2C.”
“He built our marketing, sales and customer success functions from the ground up and transformed them into a unified growth engine.”
“The professional landscape is changing rapidly, and it can be overwhelming. Your lessons and workshop materials are so valuable.”
“…one of the most dynamic and grounded leaders I’ve known. He’s led teams across operations, marketing, sales and customer experience, often through periods of major change and transition…”
“[Brian] has applied his strategic planning skills and business savvy to help our non-profit manage turbulent times, developing new offers and pursuing new funding sources.”
Growth doesn’t stall without a reason.
Let’s find yours.
Or write to us at info@silverbranchpraxis.com
Silverbranch Praxis: FAQs
What does Silverbranch Praxis do?
Silverbranch Praxis is a boutique growth architecture firm founded by Brian Kostantin, based in Massachusetts. It works in three ways: fractional growth leadership for organizations (CMO, COO, CXO, Head of Growth), project-based engagements for marketing, sales, and customer experience teams, and SBX Authentic Presence, a personal branding framework for individuals. All three apply the same method: diagnose experience debt, design the system to resolve it, and stay involved until the work holds.
What is experience debt, and how does it affect growth?
Experience debt is the accumulating cost of misaligned people, systems, and decisions across the customer journey. It shows up as rising acquisition costs, stalling conversion, and teams that work hard without moving the number. Left unresolved, it becomes the ceiling on durable growth. Silverbranch identifies where it lives and builds the systems to resolve it. Read the full explanation of experience debt.
How is this different from hiring a marketing agency?
Agencies rent you execution inside one function. Silverbranch designs the system underneath: how marketing, sales, customer experience, and operations connect, and how AI and automation carry the load between them. We call this marketing engineering, building the workflows, data plumbing, and AI-assisted processes that turn strategy into a system that runs without heroics. If your problem lives inside one channel, an agency may be the right call. If your problem is that people, tools, and channels are not talking to each other, that is an architecture problem.
Who is SBX Authentic Presence for?
SBX Authentic Presence serves three groups seeking to build their online personal brand with one framework at different depths: executives and founders keeping an established presence sharp, mid-career professionals closing the gap between their work and their visibility, and early-career professionals and students building a professional signal from the ground up. The student path is designed with parents in mind. A free 45-minute Authentic Presence Lab runs on the first Tuesday of every month for anyone unsure where to start.
How do engagements start, and what do they cost?
Every engagement starts with a conversation, not a pitch. For organizations, the typical entry point is the SBX Strategic Assessment, a focused diagnostic starting at $1,000, with the fee applicable to a monthly engagement. Team projects are scoped individually. For individuals, entry points range from the free monthly Lab to single sessions and monthly partnerships. Discovery calls are typically available within a week.
Where is Silverbranch Praxis located, and do you work remotely?
Silverbranch Praxis is based in Massachusetts, serving Greater Boston and Worcester County and remotely across the United States of America. Engagements run in person and remotely, and the firm works with a network of collaborators across North America and South Asia.