
Respecting the Past. Building the Future.
On a mission to buy and operate in the long-term one exceptional business to steward it into the future in support of a purpose and impact that matter
ABridge Keystone Partners is an entrepreneur-led search fund founded with the sole purpose of acquiring and growing a single remarkable business.
We are looking for a business owner who is planning the next stage in their life, but want their business, legacy, and employees to be treated right. We want to partner with you and provide a peace of mind, transparency, and flexibility as you make the transition. We are backed by a group of experienced entrepreneurs, investors, and operators who share a long-term vision for sustainable value creation.
Small businesses are the backbone of the American economy. We believe deeply in their promise, their people, and their potential — and in their power to drive prosperity across communities large and small. We are focused on partnering with an owner-operated business where we can preserve the company’s legacy while bringing fresh energy, strategic focus, and operational excellence to support its continued growth.

Why Us
Our approach is grounded in purpose and guided by core values—integrity, curiosity, and respect for the people, culture, and communities that make each business unique.
Hands-On Servant Leadership, Day One
Arthur will step in full-time as CEO, bringing energy, focus, and accountability to the business, its people and the broader community. With a track record of building and leading high-performing organizations, managing complex operations and aligning cross-functional teams to deliver results in high-stakes settings, he’s a proven operator committed to the long-term success of the business and its people.
Doing the Right Thing
With a deep commitment to the search fund model and a long-term, people-first mindset, we’re in this for the right reasons: to steward a business with care, preserve what makes it great, and create enduring value. Our goal is to always think long-term to prioritize the company’s culture, support its people, and intentionally build on what already works.
Built for Succession, Not Flip
We’re not financial engineers. We're relentless about operational excellence, thoughtful growth, and building something durable — not just chasing short-term gains. We believe in honoring a company’s legacy, investing in its people, and leading it through its next chapter with discipline, care and respect.

What We Look For
While no business can be defined by numbers alone and we remain committed to partnering with the owner to ensure their goals and succession needs are met, these are the general criteria we look for.
Established Scale
ABK targets U.S.-based lower middle market B2B services companies with at least $1.5 million of annual cash flow and revenues ranging from $10 million to $50 million
Recurring demand & strong margins
Demonstrated history of stable and recurring revenue with healthy profit margins
Mission Criticality
Providing essential and durable products or services with strong customer retention
Our Team
Arthur Belkin
Founder and Managing Principal
Arthur is the Founder and Managing Principal of ABridge Keystone Partners. He is committed to acquiring and operating an exceptional business with care, integrity, and a long-term mindset. With prior leadership experience at Procter & Gamble and an MBA from Harvard Business School, Arthur brings a strong operational background, disciplined leadership, and a servant-minded approach to building lasting value.
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Arthur’s goal is to become a hands-on CEO who will honor the legacy of the current owner while investing in the company’s continued success.
Arthur is a first-generation American and a firm believer in the promise of the American Dream. Having grown up across multiple continents, he returned to the U.S. alone at the age of 15 to pursue his education and future. His journey is one of hard work, resilience, and deep appreciation for the opportunities that business—especially small business—can create for families, employees, and communities. These experiences have shaped Arthur’s leadership style, grounded in humility, grit, and a strong sense of responsibility. Having personally been the beneficiary of access and opportunity, he is committed to creating pathways for others to grow, succeed, and thrive.
Professionally, Arthur brings a background in operations and leadership from Procter & Gamble, where he helped scale a startup manufacturing site into a fully operational flagship facility. He managed large-scale teams, critical supply chain functions, and complex budgets. He understands what it takes to lead through transition and drive sustainable high performance: listening, learning, and building trust.
Arthur holds an engineering degree from Rice University and an MBA from Harvard Business School, where he focused deeply on Entrepreneurship Through Acquisition (ETA), serving in leadership roles in the ETA Club and gaining hands-on experience with both investors and operators in the space.
Arthur isn’t looking for a short-term transaction. He is fully committed to taking the baton from a retiring owner, preserving what already works, and leading the business into its next chapter. He believes small businesses are the backbone of the American economy and is honored by the opportunity to continue the legacy of a founder who built something great.
In his free time, Arthur enjoys staying physically active, golfing and exploring everything the local food and culture scene has to offer.
Investors
We are backed by a team of seasoned investors, entrepreneurs, and former business executives. They have the capital to move quickly, and they will take an active role in the company, serving as mentors, board members, and using their vast networks to help us grow the business. We are confident in our ability to fund transactions from $5M to $50M+.

Co-founder of WSC & Company, former searcher and President of Perimeter Security Systems & Stone Pump & Trench

Founder of Aspect Investors, former searcher and CEO/Co-Founder of Behavioral Health Group (BHG)

Partner at BK Growth, former searcher and President at RIA in a Box

Partner at Futaleufu Partners, former searcher and CEO at Unified Dental Care

Founder at Cerralvo, former searcher and CEO of Medistik

Co-Founder at Heritage Holding, serial entrepreneur
“I’m energized by the tremendous opportunity and privilege to apply my management skills and top-notch training as a force for good—unlocking the full potential of people, organizations, and communities and helping them thrive. I look forward to serving as a values-driven, servant leader who fosters a people-first culture and creates both economic and personal fulfillment opportunities for the employees and partners of the small business I acquire. I’m deeply motivated by the enduring value that can be created in the context of a small- to mid-sized private company, and by the profound, positive impact entrepreneurs can have on all stakeholders throughout their journey.”
If you're considering succession and care deeply about finding the right next steward for your business, we would be honored to hear your story. Contact us.